diff options
Diffstat (limited to 'vendor/syn/tests')
39 files changed, 14394 insertions, 0 deletions
diff --git a/vendor/syn/tests/common/eq.rs b/vendor/syn/tests/common/eq.rs new file mode 100644 index 00000000..f8059a6e --- /dev/null +++ b/vendor/syn/tests/common/eq.rs @@ -0,0 +1,893 @@ +#![allow(unused_macro_rules)] + +extern crate rustc_ast; +extern crate rustc_data_structures; +extern crate rustc_driver; +extern crate rustc_span; +extern crate thin_vec; + +use rustc_ast::ast::AngleBracketedArg; +use rustc_ast::ast::AngleBracketedArgs; +use rustc_ast::ast::AnonConst; +use rustc_ast::ast::Arm; +use rustc_ast::ast::AsmMacro; +use rustc_ast::ast::AssignOpKind; +use rustc_ast::ast::AssocItemConstraint; +use rustc_ast::ast::AssocItemConstraintKind; +use rustc_ast::ast::AssocItemKind; +use rustc_ast::ast::AttrArgs; +use rustc_ast::ast::AttrId; +use rustc_ast::ast::AttrItem; +use rustc_ast::ast::AttrKind; +use rustc_ast::ast::AttrStyle; +use rustc_ast::ast::Attribute; +use rustc_ast::ast::BareFnTy; +use rustc_ast::ast::BinOpKind; +use rustc_ast::ast::BindingMode; +use rustc_ast::ast::Block; +use rustc_ast::ast::BlockCheckMode; +use rustc_ast::ast::BorrowKind; +use rustc_ast::ast::BoundAsyncness; +use rustc_ast::ast::BoundConstness; +use rustc_ast::ast::BoundPolarity; +use rustc_ast::ast::ByRef; +use rustc_ast::ast::CaptureBy; +use rustc_ast::ast::Closure; +use rustc_ast::ast::ClosureBinder; +use rustc_ast::ast::Const; +use rustc_ast::ast::ConstItem; +use rustc_ast::ast::CoroutineKind; +use rustc_ast::ast::Crate; +use rustc_ast::ast::Defaultness; +use rustc_ast::ast::Delegation; +use rustc_ast::ast::DelegationMac; +use rustc_ast::ast::DelimArgs; +use rustc_ast::ast::EnumDef; +use rustc_ast::ast::Expr; +use rustc_ast::ast::ExprField; +use rustc_ast::ast::ExprKind; +use rustc_ast::ast::Extern; +use rustc_ast::ast::FieldDef; +use rustc_ast::ast::FloatTy; +use rustc_ast::ast::Fn; +use rustc_ast::ast::FnContract; +use rustc_ast::ast::FnDecl; +use rustc_ast::ast::FnHeader; +use rustc_ast::ast::FnRetTy; +use rustc_ast::ast::FnSig; +use rustc_ast::ast::ForLoopKind; +use rustc_ast::ast::ForeignItemKind; +use rustc_ast::ast::ForeignMod; +use rustc_ast::ast::FormatAlignment; +use rustc_ast::ast::FormatArgPosition; +use rustc_ast::ast::FormatArgPositionKind; +use rustc_ast::ast::FormatArgs; +use rustc_ast::ast::FormatArgsPiece; +use rustc_ast::ast::FormatArgument; +use rustc_ast::ast::FormatArgumentKind; +use rustc_ast::ast::FormatArguments; +use rustc_ast::ast::FormatCount; +use rustc_ast::ast::FormatDebugHex; +use rustc_ast::ast::FormatOptions; +use rustc_ast::ast::FormatPlaceholder; +use rustc_ast::ast::FormatSign; +use rustc_ast::ast::FormatTrait; +use rustc_ast::ast::GenBlockKind; +use rustc_ast::ast::GenericArg; +use rustc_ast::ast::GenericArgs; +use rustc_ast::ast::GenericBound; +use rustc_ast::ast::GenericParam; +use rustc_ast::ast::GenericParamKind; +use rustc_ast::ast::Generics; +use rustc_ast::ast::Impl; +use rustc_ast::ast::ImplPolarity; +use rustc_ast::ast::Inline; +use rustc_ast::ast::InlineAsm; +use rustc_ast::ast::InlineAsmOperand; +use rustc_ast::ast::InlineAsmOptions; +use rustc_ast::ast::InlineAsmRegOrRegClass; +use rustc_ast::ast::InlineAsmSym; +use rustc_ast::ast::InlineAsmTemplatePiece; +use rustc_ast::ast::IntTy; +use rustc_ast::ast::IsAuto; +use rustc_ast::ast::Item; +use rustc_ast::ast::ItemKind; +use rustc_ast::ast::Label; +use rustc_ast::ast::Lifetime; +use rustc_ast::ast::LitFloatType; +use rustc_ast::ast::LitIntType; +use rustc_ast::ast::LitKind; +use rustc_ast::ast::Local; +use rustc_ast::ast::LocalKind; +use rustc_ast::ast::MacCall; +use rustc_ast::ast::MacCallStmt; +use rustc_ast::ast::MacStmtStyle; +use rustc_ast::ast::MacroDef; +use rustc_ast::ast::MatchKind; +use rustc_ast::ast::MetaItem; +use rustc_ast::ast::MetaItemInner; +use rustc_ast::ast::MetaItemKind; +use rustc_ast::ast::MetaItemLit; +use rustc_ast::ast::MethodCall; +use rustc_ast::ast::ModKind; +use rustc_ast::ast::ModSpans; +use rustc_ast::ast::Movability; +use rustc_ast::ast::MutTy; +use rustc_ast::ast::Mutability; +use rustc_ast::ast::NodeId; +use rustc_ast::ast::NormalAttr; +use rustc_ast::ast::Param; +use rustc_ast::ast::ParenthesizedArgs; +use rustc_ast::ast::Pat; +use rustc_ast::ast::PatField; +use rustc_ast::ast::PatFieldsRest; +use rustc_ast::ast::PatKind; +use rustc_ast::ast::Path; +use rustc_ast::ast::PathSegment; +use rustc_ast::ast::PolyTraitRef; +use rustc_ast::ast::PreciseCapturingArg; +use rustc_ast::ast::QSelf; +use rustc_ast::ast::RangeEnd; +use rustc_ast::ast::RangeLimits; +use rustc_ast::ast::RangeSyntax; +use rustc_ast::ast::Recovered; +use rustc_ast::ast::Safety; +use rustc_ast::ast::StaticItem; +use rustc_ast::ast::Stmt; +use rustc_ast::ast::StmtKind; +use rustc_ast::ast::StrLit; +use rustc_ast::ast::StrStyle; +use rustc_ast::ast::StructExpr; +use rustc_ast::ast::StructRest; +use rustc_ast::ast::Term; +use rustc_ast::ast::Trait; +use rustc_ast::ast::TraitBoundModifiers; +use rustc_ast::ast::TraitObjectSyntax; +use rustc_ast::ast::TraitRef; +use rustc_ast::ast::Ty; +use rustc_ast::ast::TyAlias; +use rustc_ast::ast::TyAliasWhereClause; +use rustc_ast::ast::TyAliasWhereClauses; +use rustc_ast::ast::TyKind; +use rustc_ast::ast::TyPat; +use rustc_ast::ast::TyPatKind; +use rustc_ast::ast::UintTy; +use rustc_ast::ast::UnOp; +use rustc_ast::ast::UnsafeBinderCastKind; +use rustc_ast::ast::UnsafeBinderTy; +use rustc_ast::ast::UnsafeSource; +use rustc_ast::ast::UseTree; +use rustc_ast::ast::UseTreeKind; +use rustc_ast::ast::Variant; +use rustc_ast::ast::VariantData; +use rustc_ast::ast::Visibility; +use rustc_ast::ast::VisibilityKind; +use rustc_ast::ast::WhereBoundPredicate; +use rustc_ast::ast::WhereClause; +use rustc_ast::ast::WhereEqPredicate; +use rustc_ast::ast::WherePredicate; +use rustc_ast::ast::WherePredicateKind; +use rustc_ast::ast::WhereRegionPredicate; +use rustc_ast::ast::YieldKind; +use rustc_ast::token::{self, CommentKind, Delimiter, IdentIsRaw, Lit, Token, TokenKind}; +use rustc_ast::tokenstream::{ + AttrTokenStream, AttrTokenTree, AttrsTarget, DelimSpacing, DelimSpan, LazyAttrTokenStream, + Spacing, TokenStream, TokenTree, +}; +use rustc_data_structures::packed::Pu128; +use rustc_span::source_map::Spanned; +use rustc_span::symbol::{sym, Ident}; +use rustc_span::{ErrorGuaranteed, Span, Symbol, SyntaxContext, DUMMY_SP}; +use std::borrow::Cow; +use std::collections::HashMap; +use std::hash::{BuildHasher, Hash}; +use std::sync::Arc; +use thin_vec::ThinVec; + +pub trait SpanlessEq { + fn eq(&self, other: &Self) -> bool; +} + +impl<T: ?Sized + SpanlessEq> SpanlessEq for Box<T> { + fn eq(&self, other: &Self) -> bool { + SpanlessEq::eq(&**self, &**other) + } +} + +impl<T: ?Sized + SpanlessEq> SpanlessEq for Arc<T> { + fn eq(&self, other: &Self) -> bool { + SpanlessEq::eq(&**self, &**other) + } +} + +impl<T: SpanlessEq> SpanlessEq for Option<T> { + fn eq(&self, other: &Self) -> bool { + match (self, other) { + (None, None) => true, + (Some(this), Some(other)) => SpanlessEq::eq(this, other), + _ => false, + } + } +} + +impl<T: SpanlessEq, E: SpanlessEq> SpanlessEq for Result<T, E> { + fn eq(&self, other: &Self) -> bool { + match (self, other) { + (Ok(this), Ok(other)) => SpanlessEq::eq(this, other), + (Err(this), Err(other)) => SpanlessEq::eq(this, other), + _ => false, + } + } +} + +impl<T: SpanlessEq> SpanlessEq for [T] { + fn eq(&self, other: &Self) -> bool { + self.len() == other.len() && self.iter().zip(other).all(|(a, b)| SpanlessEq::eq(a, b)) + } +} + +impl<T: SpanlessEq> SpanlessEq for Vec<T> { + fn eq(&self, other: &Self) -> bool { + <[T] as SpanlessEq>::eq(self, other) + } +} + +impl<T: SpanlessEq> SpanlessEq for ThinVec<T> { + fn eq(&self, other: &Self) -> bool { + self.len() == other.len() + && self + .iter() + .zip(other.iter()) + .all(|(a, b)| SpanlessEq::eq(a, b)) + } +} + +impl<K: Eq + Hash, V: SpanlessEq, S: BuildHasher> SpanlessEq for HashMap<K, V, S> { + fn eq(&self, other: &Self) -> bool { + self.len() == other.len() + && self.iter().all(|(key, this_v)| { + other + .get(key) + .map_or(false, |other_v| SpanlessEq::eq(this_v, other_v)) + }) + } +} + +impl<'a, T: ?Sized + ToOwned + SpanlessEq> SpanlessEq for Cow<'a, T> { + fn eq(&self, other: &Self) -> bool { + <T as SpanlessEq>::eq(self, other) + } +} + +impl<T: SpanlessEq> SpanlessEq for Spanned<T> { + fn eq(&self, other: &Self) -> bool { + SpanlessEq::eq(&self.node, &other.node) + } +} + +impl<A: SpanlessEq, B: SpanlessEq> SpanlessEq for (A, B) { + fn eq(&self, other: &Self) -> bool { + SpanlessEq::eq(&self.0, &other.0) && SpanlessEq::eq(&self.1, &other.1) + } +} + +impl<A: SpanlessEq, B: SpanlessEq, C: SpanlessEq> SpanlessEq for (A, B, C) { + fn eq(&self, other: &Self) -> bool { + SpanlessEq::eq(&self.0, &other.0) + && SpanlessEq::eq(&self.1, &other.1) + && SpanlessEq::eq(&self.2, &other.2) + } +} + +macro_rules! spanless_eq_true { + ($name:ty) => { + impl SpanlessEq for $name { + fn eq(&self, _other: &Self) -> bool { + true + } + } + }; +} + +spanless_eq_true!(Span); +spanless_eq_true!(DelimSpan); +spanless_eq_true!(AttrId); +spanless_eq_true!(NodeId); +spanless_eq_true!(SyntaxContext); +spanless_eq_true!(Spacing); + +macro_rules! spanless_eq_partial_eq { + ($name:ty) => { + impl SpanlessEq for $name { + fn eq(&self, other: &Self) -> bool { + PartialEq::eq(self, other) + } + } + }; +} + +spanless_eq_partial_eq!(()); +spanless_eq_partial_eq!(bool); +spanless_eq_partial_eq!(u8); +spanless_eq_partial_eq!(u16); +spanless_eq_partial_eq!(u32); +spanless_eq_partial_eq!(u128); +spanless_eq_partial_eq!(usize); +spanless_eq_partial_eq!(char); +spanless_eq_partial_eq!(str); +spanless_eq_partial_eq!(String); +spanless_eq_partial_eq!(Pu128); +spanless_eq_partial_eq!(Symbol); +spanless_eq_partial_eq!(CommentKind); +spanless_eq_partial_eq!(Delimiter); +spanless_eq_partial_eq!(InlineAsmOptions); +spanless_eq_partial_eq!(token::LitKind); +spanless_eq_partial_eq!(ErrorGuaranteed); + +macro_rules! spanless_eq_struct { + { + $($name:ident)::+ $(<$param:ident>)? + $([$field:tt $this:ident $other:ident])* + $(![$ignore:tt])*; + } => { + impl $(<$param: SpanlessEq>)* SpanlessEq for $($name)::+ $(<$param>)* { + fn eq(&self, other: &Self) -> bool { + let $($name)::+ { $($field: $this,)* $($ignore: _,)* } = self; + let $($name)::+ { $($field: $other,)* $($ignore: _,)* } = other; + true $(&& SpanlessEq::eq($this, $other))* + } + } + }; + + { + $($name:ident)::+ $(<$param:ident>)? + $([$field:tt $this:ident $other:ident])* + $(![$ignore:tt])*; + !$next:tt + $($rest:tt)* + } => { + spanless_eq_struct! { + $($name)::+ $(<$param>)* + $([$field $this $other])* + $(![$ignore])* + ![$next]; + $($rest)* + } + }; + + { + $($name:ident)::+ $(<$param:ident>)? + $([$field:tt $this:ident $other:ident])* + $(![$ignore:tt])*; + $next:tt + $($rest:tt)* + } => { + spanless_eq_struct! { + $($name)::+ $(<$param>)* + $([$field $this $other])* + [$next this other] + $(![$ignore])*; + $($rest)* + } + }; +} + +macro_rules! spanless_eq_enum { + { + $($name:ident)::+; + $([$($variant:ident)::+; $([$field:tt $this:ident $other:ident])* $(![$ignore:tt])*])* + } => { + impl SpanlessEq for $($name)::+ { + fn eq(&self, other: &Self) -> bool { + match self { + $( + $($variant)::+ { .. } => {} + )* + } + #[allow(unreachable_patterns)] + match (self, other) { + $( + ( + $($variant)::+ { $($field: $this,)* $($ignore: _,)* }, + $($variant)::+ { $($field: $other,)* $($ignore: _,)* }, + ) => { + true $(&& SpanlessEq::eq($this, $other))* + } + )* + _ => false, + } + } + } + }; + + { + $($name:ident)::+; + $([$($variant:ident)::+; $($fields:tt)*])* + $next:ident [$([$($named:tt)*])* $(![$ignore:tt])*] (!$i:tt $($field:tt)*) + $($rest:tt)* + } => { + spanless_eq_enum! { + $($name)::+; + $([$($variant)::+; $($fields)*])* + $next [$([$($named)*])* $(![$ignore])* ![$i]] ($($field)*) + $($rest)* + } + }; + + { + $($name:ident)::+; + $([$($variant:ident)::+; $($fields:tt)*])* + $next:ident [$([$($named:tt)*])* $(![$ignore:tt])*] ($i:tt $($field:tt)*) + $($rest:tt)* + } => { + spanless_eq_enum! { + $($name)::+; + $([$($variant)::+; $($fields)*])* + $next [$([$($named)*])* [$i this other] $(![$ignore])*] ($($field)*) + $($rest)* + } + }; + + { + $($name:ident)::+; + $([$($variant:ident)::+; $($fields:tt)*])* + $next:ident [$($named:tt)*] () + $($rest:tt)* + } => { + spanless_eq_enum! { + $($name)::+; + $([$($variant)::+; $($fields)*])* + [$($name)::+::$next; $($named)*] + $($rest)* + } + }; + + { + $($name:ident)::+; + $([$($variant:ident)::+; $($fields:tt)*])* + $next:ident ($($field:tt)*) + $($rest:tt)* + } => { + spanless_eq_enum! { + $($name)::+; + $([$($variant)::+; $($fields)*])* + $next [] ($($field)*) + $($rest)* + } + }; + + { + $($name:ident)::+; + $([$($variant:ident)::+; $($fields:tt)*])* + $next:ident + $($rest:tt)* + } => { + spanless_eq_enum! { + $($name)::+; + $([$($variant)::+; $($fields)*])* + [$($name)::+::$next;] + $($rest)* + } + }; +} + +spanless_eq_struct!(AngleBracketedArgs; span args); +spanless_eq_struct!(AnonConst; id value); +spanless_eq_struct!(Arm; attrs pat guard body span id is_placeholder); +spanless_eq_struct!(AssocItemConstraint; id ident gen_args kind span); +spanless_eq_struct!(AttrItem; unsafety path args tokens); +spanless_eq_struct!(AttrTokenStream; 0); +spanless_eq_struct!(Attribute; kind id style span); +spanless_eq_struct!(AttrsTarget; attrs tokens); +spanless_eq_struct!(BareFnTy; safety ext generic_params decl decl_span); +spanless_eq_struct!(BindingMode; 0 1); +spanless_eq_struct!(Block; stmts id rules span tokens); +spanless_eq_struct!(Closure; binder capture_clause constness coroutine_kind movability fn_decl body !fn_decl_span !fn_arg_span); +spanless_eq_struct!(ConstItem; defaultness ident generics ty expr define_opaque); +spanless_eq_struct!(Crate; attrs items spans id is_placeholder); +spanless_eq_struct!(Delegation; id qself path ident rename body from_glob); +spanless_eq_struct!(DelegationMac; qself prefix suffixes body); +spanless_eq_struct!(DelimArgs; dspan delim tokens); +spanless_eq_struct!(DelimSpacing; open close); +spanless_eq_struct!(EnumDef; variants); +spanless_eq_struct!(Expr; id kind span attrs !tokens); +spanless_eq_struct!(ExprField; attrs id span ident expr is_shorthand is_placeholder); +spanless_eq_struct!(FieldDef; attrs id span vis safety ident ty default is_placeholder); +spanless_eq_struct!(Fn; defaultness ident generics sig contract define_opaque body); +spanless_eq_struct!(FnContract; requires ensures); +spanless_eq_struct!(FnDecl; inputs output); +spanless_eq_struct!(FnHeader; constness coroutine_kind safety ext); +spanless_eq_struct!(FnSig; header decl span); +spanless_eq_struct!(ForeignMod; extern_span safety abi items); +spanless_eq_struct!(FormatArgPosition; index kind span); +spanless_eq_struct!(FormatArgs; span template arguments uncooked_fmt_str); +spanless_eq_struct!(FormatArgument; kind expr); +spanless_eq_struct!(FormatOptions; width precision alignment fill sign alternate zero_pad debug_hex); +spanless_eq_struct!(FormatPlaceholder; argument span format_trait format_options); +spanless_eq_struct!(GenericParam; id ident attrs bounds is_placeholder kind !colon_span); +spanless_eq_struct!(Generics; params where_clause span); +spanless_eq_struct!(Impl; defaultness safety generics constness polarity of_trait self_ty items); +spanless_eq_struct!(InlineAsm; asm_macro template template_strs operands clobber_abis options line_spans); +spanless_eq_struct!(InlineAsmSym; id qself path); +spanless_eq_struct!(Item<K>; attrs id span vis kind !tokens); +spanless_eq_struct!(Label; ident); +spanless_eq_struct!(Lifetime; id ident); +spanless_eq_struct!(Lit; kind symbol suffix); +spanless_eq_struct!(Local; id super_ pat ty kind span colon_sp attrs !tokens); +spanless_eq_struct!(MacCall; path args); +spanless_eq_struct!(MacCallStmt; mac style attrs tokens); +spanless_eq_struct!(MacroDef; body macro_rules); +spanless_eq_struct!(MetaItem; unsafety path kind span); +spanless_eq_struct!(MetaItemLit; symbol suffix kind span); +spanless_eq_struct!(MethodCall; seg receiver args !span); +spanless_eq_struct!(ModSpans; !inner_span !inject_use_span); +spanless_eq_struct!(MutTy; ty mutbl); +spanless_eq_struct!(NormalAttr; item tokens); +spanless_eq_struct!(ParenthesizedArgs; span inputs inputs_span output); +spanless_eq_struct!(Pat; id kind span tokens); +spanless_eq_struct!(PatField; ident pat is_shorthand attrs id span is_placeholder); +spanless_eq_struct!(Path; span segments tokens); +spanless_eq_struct!(PathSegment; ident id args); +spanless_eq_struct!(PolyTraitRef; bound_generic_params modifiers trait_ref span); +spanless_eq_struct!(QSelf; ty path_span position); +spanless_eq_struct!(StaticItem; ident ty safety mutability expr define_opaque); +spanless_eq_struct!(Stmt; id kind span); +spanless_eq_struct!(StrLit; symbol suffix symbol_unescaped style span); +spanless_eq_struct!(StructExpr; qself path fields rest); +spanless_eq_struct!(Token; kind span); +spanless_eq_struct!(Trait; safety is_auto ident generics bounds items); +spanless_eq_struct!(TraitBoundModifiers; constness asyncness polarity); +spanless_eq_struct!(TraitRef; path ref_id); +spanless_eq_struct!(Ty; id kind span tokens); +spanless_eq_struct!(TyAlias; defaultness ident generics where_clauses bounds ty); +spanless_eq_struct!(TyAliasWhereClause; !has_where_token span); +spanless_eq_struct!(TyAliasWhereClauses; before after !split); +spanless_eq_struct!(TyPat; id kind span tokens); +spanless_eq_struct!(UnsafeBinderTy; generic_params inner_ty); +spanless_eq_struct!(UseTree; prefix kind span); +spanless_eq_struct!(Variant; attrs id span !vis ident data disr_expr is_placeholder); +spanless_eq_struct!(Visibility; kind span tokens); +spanless_eq_struct!(WhereBoundPredicate; bound_generic_params bounded_ty bounds); +spanless_eq_struct!(WhereClause; has_where_token predicates span); +spanless_eq_struct!(WhereEqPredicate; lhs_ty rhs_ty); +spanless_eq_struct!(WherePredicate; attrs kind id span is_placeholder); +spanless_eq_struct!(WhereRegionPredicate; lifetime bounds); +spanless_eq_enum!(AngleBracketedArg; Arg(0) Constraint(0)); +spanless_eq_enum!(AsmMacro; Asm GlobalAsm NakedAsm); +spanless_eq_enum!(AssocItemConstraintKind; Equality(term) Bound(bounds)); +spanless_eq_enum!(AssocItemKind; Const(0) Fn(0) Type(0) MacCall(0) Delegation(0) DelegationMac(0)); +spanless_eq_enum!(AttrArgs; Empty Delimited(0) Eq(eq_span expr)); +spanless_eq_enum!(AttrStyle; Outer Inner); +spanless_eq_enum!(AttrTokenTree; Token(0 1) Delimited(0 1 2 3) AttrsTarget(0)); +spanless_eq_enum!(BinOpKind; Add Sub Mul Div Rem And Or BitXor BitAnd BitOr Shl Shr Eq Lt Le Ne Ge Gt); +spanless_eq_enum!(BlockCheckMode; Default Unsafe(0)); +spanless_eq_enum!(BorrowKind; Ref Raw); +spanless_eq_enum!(BoundAsyncness; Normal Async(0)); +spanless_eq_enum!(BoundConstness; Never Always(0) Maybe(0)); +spanless_eq_enum!(BoundPolarity; Positive Negative(0) Maybe(0)); +spanless_eq_enum!(ByRef; Yes(0) No); +spanless_eq_enum!(CaptureBy; Value(move_kw) Ref Use(use_kw)); +spanless_eq_enum!(ClosureBinder; NotPresent For(span generic_params)); +spanless_eq_enum!(Const; Yes(0) No); +spanless_eq_enum!(Defaultness; Default(0) Final); +spanless_eq_enum!(Extern; None Implicit(0) Explicit(0 1)); +spanless_eq_enum!(FloatTy; F16 F32 F64 F128); +spanless_eq_enum!(FnRetTy; Default(0) Ty(0)); +spanless_eq_enum!(ForLoopKind; For ForAwait); +spanless_eq_enum!(ForeignItemKind; Static(0) Fn(0) TyAlias(0) MacCall(0)); +spanless_eq_enum!(FormatAlignment; Left Right Center); +spanless_eq_enum!(FormatArgPositionKind; Implicit Number Named); +spanless_eq_enum!(FormatArgsPiece; Literal(0) Placeholder(0)); +spanless_eq_enum!(FormatArgumentKind; Normal Named(0) Captured(0)); +spanless_eq_enum!(FormatCount; Literal(0) Argument(0)); +spanless_eq_enum!(FormatDebugHex; Lower Upper); +spanless_eq_enum!(FormatSign; Plus Minus); +spanless_eq_enum!(FormatTrait; Display Debug LowerExp UpperExp Octal Pointer Binary LowerHex UpperHex); +spanless_eq_enum!(GenBlockKind; Async Gen AsyncGen); +spanless_eq_enum!(GenericArg; Lifetime(0) Type(0) Const(0)); +spanless_eq_enum!(GenericArgs; AngleBracketed(0) Parenthesized(0) ParenthesizedElided(0)); +spanless_eq_enum!(GenericBound; Trait(0) Outlives(0) Use(0 1)); +spanless_eq_enum!(GenericParamKind; Lifetime Type(default) Const(ty kw_span default)); +spanless_eq_enum!(ImplPolarity; Positive Negative(0)); +spanless_eq_enum!(Inline; Yes No); +spanless_eq_enum!(InlineAsmRegOrRegClass; Reg(0) RegClass(0)); +spanless_eq_enum!(InlineAsmTemplatePiece; String(0) Placeholder(operand_idx modifier span)); +spanless_eq_enum!(IntTy; Isize I8 I16 I32 I64 I128); +spanless_eq_enum!(IsAuto; Yes No); +spanless_eq_enum!(LitFloatType; Suffixed(0) Unsuffixed); +spanless_eq_enum!(LitIntType; Signed(0) Unsigned(0) Unsuffixed); +spanless_eq_enum!(LocalKind; Decl Init(0) InitElse(0 1)); +spanless_eq_enum!(MacStmtStyle; Semicolon Braces NoBraces); +spanless_eq_enum!(MatchKind; Prefix Postfix); +spanless_eq_enum!(MetaItemKind; Word List(0) NameValue(0)); +spanless_eq_enum!(MetaItemInner; MetaItem(0) Lit(0)); +spanless_eq_enum!(ModKind; Loaded(0 1 2 3) Unloaded); +spanless_eq_enum!(Movability; Static Movable); +spanless_eq_enum!(Mutability; Mut Not); +spanless_eq_enum!(PatFieldsRest; Rest Recovered(0) None); +spanless_eq_enum!(PreciseCapturingArg; Lifetime(0) Arg(0 1)); +spanless_eq_enum!(RangeEnd; Included(0) Excluded); +spanless_eq_enum!(RangeLimits; HalfOpen Closed); +spanless_eq_enum!(Recovered; No Yes(0)); +spanless_eq_enum!(Safety; Unsafe(0) Safe(0) Default); +spanless_eq_enum!(StmtKind; Let(0) Item(0) Expr(0) Semi(0) Empty MacCall(0)); +spanless_eq_enum!(StrStyle; Cooked Raw(0)); +spanless_eq_enum!(StructRest; Base(0) Rest(0) None); +spanless_eq_enum!(Term; Ty(0) Const(0)); +spanless_eq_enum!(TokenTree; Token(0 1) Delimited(0 1 2 3)); +spanless_eq_enum!(TraitObjectSyntax; Dyn DynStar None); +spanless_eq_enum!(TyPatKind; Range(0 1 2) Or(0) Err(0)); +spanless_eq_enum!(UintTy; Usize U8 U16 U32 U64 U128); +spanless_eq_enum!(UnOp; Deref Not Neg); +spanless_eq_enum!(UnsafeBinderCastKind; Wrap Unwrap); +spanless_eq_enum!(UnsafeSource; CompilerGenerated UserProvided); +spanless_eq_enum!(UseTreeKind; Simple(0) Nested(items span) Glob); +spanless_eq_enum!(VariantData; Struct(fields recovered) Tuple(0 1) Unit(0)); +spanless_eq_enum!(VisibilityKind; Public Restricted(path id shorthand) Inherited); +spanless_eq_enum!(WherePredicateKind; BoundPredicate(0) RegionPredicate(0) EqPredicate(0)); +spanless_eq_enum!(YieldKind; Prefix(0) Postfix(0)); +spanless_eq_enum!(AssignOpKind; AddAssign SubAssign MulAssign DivAssign + RemAssign BitXorAssign BitAndAssign BitOrAssign ShlAssign ShrAssign); +spanless_eq_enum!(CoroutineKind; Async(span closure_id return_impl_trait_id) + Gen(span closure_id return_impl_trait_id) + AsyncGen(span closure_id return_impl_trait_id)); +spanless_eq_enum!(ExprKind; Array(0) ConstBlock(0) Call(0 1) MethodCall(0) + Tup(0) Binary(0 1 2) Unary(0 1) Lit(0) Cast(0 1) Type(0 1) Let(0 1 2 3) + If(0 1 2) While(0 1 2) ForLoop(pat iter body label kind) Loop(0 1 2) + Match(0 1 2) Closure(0) Block(0 1) Gen(0 1 2 3) Await(0 1) Use(0 1) + TryBlock(0) Assign(0 1 2) AssignOp(0 1 2) Field(0 1) Index(0 1 2) Underscore + Range(0 1 2) Path(0 1) AddrOf(0 1 2) Break(0 1) Continue(0) Ret(0) + InlineAsm(0) OffsetOf(0 1) MacCall(0) Struct(0) Repeat(0 1) Paren(0) Try(0) + Yield(0) Yeet(0) Become(0) IncludedBytes(0) FormatArgs(0) + UnsafeBinderCast(0 1 2) Err(0) Dummy); +spanless_eq_enum!(InlineAsmOperand; In(reg expr) Out(reg late expr) + InOut(reg late expr) SplitInOut(reg late in_expr out_expr) Const(anon_const) + Sym(sym) Label(block)); +spanless_eq_enum!(ItemKind; ExternCrate(0 1) Use(0) Static(0) Const(0) Fn(0) + Mod(0 1 2) ForeignMod(0) GlobalAsm(0) TyAlias(0) Enum(0 1 2) Struct(0 1 2) + Union(0 1 2) Trait(0) TraitAlias(0 1 2) Impl(0) MacCall(0) MacroDef(0 1) + Delegation(0) DelegationMac(0)); +spanless_eq_enum!(LitKind; Str(0 1) ByteStr(0 1) CStr(0 1) Byte(0) Char(0) + Int(0 1) Float(0 1) Bool(0) Err(0)); +spanless_eq_enum!(PatKind; Missing Wild Ident(0 1 2) Struct(0 1 2 3) + TupleStruct(0 1 2) Or(0) Path(0 1) Tuple(0) Box(0) Deref(0) Ref(0 1) Expr(0) + Range(0 1 2) Slice(0) Rest Never Guard(0 1) Paren(0) MacCall(0) Err(0)); +spanless_eq_enum!(TyKind; Slice(0) Array(0 1) Ptr(0) Ref(0 1) PinnedRef(0 1) + BareFn(0) UnsafeBinder(0) Never Tup(0) Path(0 1) TraitObject(0 1) + ImplTrait(0 1) Paren(0) Typeof(0) Infer ImplicitSelf MacCall(0) CVarArgs + Pat(0 1) Dummy Err(0)); + +impl SpanlessEq for Ident { + fn eq(&self, other: &Self) -> bool { + self.as_str() == other.as_str() + } +} + +impl SpanlessEq for RangeSyntax { + fn eq(&self, _other: &Self) -> bool { + match self { + RangeSyntax::DotDotDot | RangeSyntax::DotDotEq => true, + } + } +} + +impl SpanlessEq for Param { + fn eq(&self, other: &Self) -> bool { + let Param { + attrs, + ty, + pat, + id, + span: _, + is_placeholder, + } = self; + let Param { + attrs: attrs2, + ty: ty2, + pat: pat2, + id: id2, + span: _, + is_placeholder: is_placeholder2, + } = other; + SpanlessEq::eq(id, id2) + && SpanlessEq::eq(is_placeholder, is_placeholder2) + && (matches!(ty.kind, TyKind::Err(_)) + || matches!(ty2.kind, TyKind::Err(_)) + || SpanlessEq::eq(attrs, attrs2) + && SpanlessEq::eq(ty, ty2) + && SpanlessEq::eq(pat, pat2)) + } +} + +impl SpanlessEq for TokenKind { + fn eq(&self, other: &Self) -> bool { + match (self, other) { + (TokenKind::Literal(this), TokenKind::Literal(other)) => SpanlessEq::eq(this, other), + (TokenKind::DotDotEq | TokenKind::DotDotDot, _) => match other { + TokenKind::DotDotEq | TokenKind::DotDotDot => true, + _ => false, + }, + _ => self == other, + } + } +} + +impl SpanlessEq for TokenStream { + fn eq(&self, other: &Self) -> bool { + let mut this_trees = self.iter(); + let mut other_trees = other.iter(); + loop { + let this = match this_trees.next() { + None => return other_trees.next().is_none(), + Some(tree) => tree, + }; + let other = match other_trees.next() { + None => return false, + Some(tree) => tree, + }; + if SpanlessEq::eq(this, other) { + continue; + } + if let (TokenTree::Token(this, _), TokenTree::Token(other, _)) = (this, other) { + if match (&this.kind, &other.kind) { + (TokenKind::Literal(this), TokenKind::Literal(other)) => { + SpanlessEq::eq(this, other) + } + (TokenKind::DocComment(_kind, style, symbol), TokenKind::Pound) => { + doc_comment(*style, *symbol, &mut other_trees) + } + (TokenKind::Pound, TokenKind::DocComment(_kind, style, symbol)) => { + doc_comment(*style, *symbol, &mut this_trees) + } + _ => false, + } { + continue; + } + } + return false; + } + } +} + +fn doc_comment<'a>( + style: AttrStyle, + unescaped: Symbol, + trees: &mut impl Iterator<Item = &'a TokenTree>, +) -> bool { + if match style { + AttrStyle::Outer => false, + AttrStyle::Inner => true, + } { + match trees.next() { + Some(TokenTree::Token( + Token { + kind: TokenKind::Bang, + span: _, + }, + _spacing, + )) => {} + _ => return false, + } + } + let stream = match trees.next() { + Some(TokenTree::Delimited(_span, _spacing, Delimiter::Bracket, stream)) => stream, + _ => return false, + }; + let mut trees = stream.iter(); + match trees.next() { + Some(TokenTree::Token( + Token { + kind: TokenKind::Ident(symbol, IdentIsRaw::No), + span: _, + }, + _spacing, + )) if *symbol == sym::doc => {} + _ => return false, + } + match trees.next() { + Some(TokenTree::Token( + Token { + kind: TokenKind::Eq, + span: _, + }, + _spacing, + )) => {} + _ => return false, + } + match trees.next() { + Some(TokenTree::Token(token, _spacing)) => { + is_escaped_literal_token(token, unescaped) && trees.next().is_none() + } + _ => false, + } +} + +fn is_escaped_literal_token(token: &Token, unescaped: Symbol) -> bool { + match token { + Token { + kind: TokenKind::Literal(lit), + span: _, + } => match MetaItemLit::from_token_lit(*lit, DUMMY_SP) { + Ok(lit) => is_escaped_literal_meta_item_lit(&lit, unescaped), + Err(_) => false, + }, + _ => false, + } +} + +fn is_escaped_literal_meta_item_lit(lit: &MetaItemLit, unescaped: Symbol) -> bool { + match lit { + MetaItemLit { + symbol: _, + suffix: None, + kind, + span: _, + } => is_escaped_lit_kind(kind, unescaped), + _ => false, + } +} + +fn is_escaped_lit(lit: &Lit, unescaped: Symbol) -> bool { + match lit { + Lit { + kind: token::LitKind::Str, + symbol: _, + suffix: None, + } => match LitKind::from_token_lit(*lit) { + Ok(lit_kind) => is_escaped_lit_kind(&lit_kind, unescaped), + _ => false, + }, + _ => false, + } +} + +fn is_escaped_lit_kind(kind: &LitKind, unescaped: Symbol) -> bool { + match kind { + LitKind::Str(symbol, StrStyle::Cooked) => { + symbol.as_str().replace('\r', "") == unescaped.as_str().replace('\r', "") + } + _ => false, + } +} + +impl SpanlessEq for LazyAttrTokenStream { + fn eq(&self, other: &Self) -> bool { + let this = self.to_attr_token_stream(); + let other = other.to_attr_token_stream(); + SpanlessEq::eq(&this, &other) + } +} + +impl SpanlessEq for AttrKind { + fn eq(&self, other: &Self) -> bool { + match (self, other) { + (AttrKind::Normal(normal), AttrKind::Normal(normal2)) => { + SpanlessEq::eq(normal, normal2) + } + (AttrKind::DocComment(kind, symbol), AttrKind::DocComment(kind2, symbol2)) => { + SpanlessEq::eq(kind, kind2) && SpanlessEq::eq(symbol, symbol2) + } + (AttrKind::DocComment(kind, unescaped), AttrKind::Normal(normal2)) => { + match kind { + CommentKind::Line | CommentKind::Block => {} + } + let path = Path::from_ident(Ident::with_dummy_span(sym::doc)); + SpanlessEq::eq(&path, &normal2.item.path) + && match &normal2.item.args { + AttrArgs::Empty | AttrArgs::Delimited(_) => false, + AttrArgs::Eq { eq_span: _, expr } => match &expr.kind { + ExprKind::Lit(lit) => is_escaped_lit(lit, *unescaped), + _ => false, + }, + } + } + (AttrKind::Normal(_), AttrKind::DocComment(..)) => SpanlessEq::eq(other, self), + } + } +} + +impl SpanlessEq for FormatArguments { + fn eq(&self, other: &Self) -> bool { + SpanlessEq::eq(self.all_args(), other.all_args()) + } +} diff --git a/vendor/syn/tests/common/mod.rs b/vendor/syn/tests/common/mod.rs new file mode 100644 index 00000000..ead830f8 --- /dev/null +++ b/vendor/syn/tests/common/mod.rs @@ -0,0 +1,6 @@ +#![allow(dead_code)] +#![allow(clippy::module_name_repetitions, clippy::shadow_unrelated)] + +pub mod eq; +pub mod parse; +pub mod visit; diff --git a/vendor/syn/tests/common/parse.rs b/vendor/syn/tests/common/parse.rs new file mode 100644 index 00000000..03b30a38 --- /dev/null +++ b/vendor/syn/tests/common/parse.rs @@ -0,0 +1,45 @@ +extern crate rustc_ast; +extern crate rustc_driver; +extern crate rustc_expand; +extern crate rustc_parse as parse; +extern crate rustc_session; +extern crate rustc_span; + +use rustc_ast::ast; +use rustc_session::parse::ParseSess; +use rustc_span::FileName; +use std::panic; + +pub fn librustc_expr(input: &str) -> Option<Box<ast::Expr>> { + match panic::catch_unwind(|| { + let locale_resources = rustc_driver::DEFAULT_LOCALE_RESOURCES.to_vec(); + let sess = ParseSess::new(locale_resources); + let name = FileName::Custom("test_precedence".to_string()); + let mut parser = parse::new_parser_from_source_str(&sess, name, input.to_string()).unwrap(); + let presult = parser.parse_expr(); + match presult { + Ok(expr) => Some(expr), + Err(diagnostic) => { + diagnostic.emit(); + None + } + } + }) { + Ok(Some(e)) => Some(e), + Ok(None) => None, + Err(_) => { + errorf!("librustc panicked\n"); + None + } + } +} + +pub fn syn_expr(input: &str) -> Option<syn::Expr> { + match syn::parse_str(input) { + Ok(e) => Some(e), + Err(msg) => { + errorf!("syn failed to parse\n{:?}\n", msg); + None + } + } +} diff --git a/vendor/syn/tests/common/visit.rs b/vendor/syn/tests/common/visit.rs new file mode 100644 index 00000000..2d2a6c53 --- /dev/null +++ b/vendor/syn/tests/common/visit.rs @@ -0,0 +1,119 @@ +use proc_macro2::{Delimiter, Group, TokenStream, TokenTree}; +use std::mem; +use syn::visit_mut::{self, VisitMut}; +use syn::{Expr, File, Generics, LifetimeParam, MacroDelimiter, Stmt, StmtMacro, TypeParam}; + +pub struct FlattenParens { + discard_paren_attrs: bool, +} + +impl FlattenParens { + pub fn discard_attrs() -> Self { + FlattenParens { + discard_paren_attrs: true, + } + } + + pub fn combine_attrs() -> Self { + FlattenParens { + discard_paren_attrs: false, + } + } + + pub fn visit_token_stream_mut(tokens: &mut TokenStream) { + *tokens = mem::take(tokens) + .into_iter() + .flat_map(|tt| { + if let TokenTree::Group(group) = tt { + let delimiter = group.delimiter(); + let mut content = group.stream(); + Self::visit_token_stream_mut(&mut content); + if let Delimiter::Parenthesis = delimiter { + content + } else { + TokenStream::from(TokenTree::Group(Group::new(delimiter, content))) + } + } else { + TokenStream::from(tt) + } + }) + .collect(); + } +} + +impl VisitMut for FlattenParens { + fn visit_expr_mut(&mut self, e: &mut Expr) { + while let Expr::Paren(paren) = e { + let paren_attrs = mem::take(&mut paren.attrs); + *e = mem::replace(&mut *paren.expr, Expr::PLACEHOLDER); + if !paren_attrs.is_empty() && !self.discard_paren_attrs { + let nested_attrs = match e { + Expr::Assign(e) => &mut e.attrs, + Expr::Binary(e) => &mut e.attrs, + Expr::Cast(e) => &mut e.attrs, + _ => unimplemented!(), + }; + assert!(nested_attrs.is_empty()); + *nested_attrs = paren_attrs; + } + } + visit_mut::visit_expr_mut(self, e); + } +} + +pub struct AsIfPrinted; + +impl VisitMut for AsIfPrinted { + fn visit_file_mut(&mut self, file: &mut File) { + file.shebang = None; + visit_mut::visit_file_mut(self, file); + } + + fn visit_generics_mut(&mut self, generics: &mut Generics) { + if generics.params.is_empty() { + generics.lt_token = None; + generics.gt_token = None; + } + if let Some(where_clause) = &generics.where_clause { + if where_clause.predicates.is_empty() { + generics.where_clause = None; + } + } + visit_mut::visit_generics_mut(self, generics); + } + + fn visit_lifetime_param_mut(&mut self, param: &mut LifetimeParam) { + if param.bounds.is_empty() { + param.colon_token = None; + } + visit_mut::visit_lifetime_param_mut(self, param); + } + + fn visit_stmt_mut(&mut self, stmt: &mut Stmt) { + if let Stmt::Expr(expr, semi) = stmt { + if let Expr::Macro(e) = expr { + if match e.mac.delimiter { + MacroDelimiter::Brace(_) => true, + MacroDelimiter::Paren(_) | MacroDelimiter::Bracket(_) => semi.is_some(), + } { + let Expr::Macro(expr) = mem::replace(expr, Expr::PLACEHOLDER) else { + unreachable!(); + }; + *stmt = Stmt::Macro(StmtMacro { + attrs: expr.attrs, + mac: expr.mac, + semi_token: *semi, + }); + } + } + } + visit_mut::visit_stmt_mut(self, stmt); + } + + fn visit_type_param_mut(&mut self, param: &mut TypeParam) { + if param.bounds.is_empty() { + param.colon_token = None; + } + visit_mut::visit_type_param_mut(self, param); + } +} diff --git a/vendor/syn/tests/debug/gen.rs b/vendor/syn/tests/debug/gen.rs new file mode 100644 index 00000000..d766a8e3 --- /dev/null +++ b/vendor/syn/tests/debug/gen.rs @@ -0,0 +1,5239 @@ +// This file is @generated by syn-internal-codegen. +// It is not intended for manual editing. + +#![allow(repr_transparent_external_private_fields)] +#![allow(clippy::match_wildcard_for_single_variants)] +use super::{Lite, Present}; +use ref_cast::RefCast; +use std::fmt::{self, Debug, Display}; +impl Debug for Lite<syn::Abi> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("Abi"); + if let Some(val) = &self.value.name { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::LitStr); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("name", Print::ref_cast(val)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::AngleBracketedGenericArguments> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("AngleBracketedGenericArguments"); + if self.value.colon2_token.is_some() { + formatter.field("colon2_token", &Present); + } + if !self.value.args.is_empty() { + formatter.field("args", Lite(&self.value.args)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::Arm> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("Arm"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("pat", Lite(&self.value.pat)); + if let Some(val) = &self.value.guard { + #[derive(RefCast)] + #[repr(transparent)] + struct Print((syn::token::If, Box<syn::Expr>)); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0.1), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("guard", Print::ref_cast(val)); + } + formatter.field("body", Lite(&self.value.body)); + if self.value.comma.is_some() { + formatter.field("comma", &Present); + } + formatter.finish() + } +} +impl Debug for Lite<syn::AssocConst> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("AssocConst"); + formatter.field("ident", Lite(&self.value.ident)); + if let Some(val) = &self.value.generics { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::AngleBracketedGenericArguments); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("generics", Print::ref_cast(val)); + } + formatter.field("value", Lite(&self.value.value)); + formatter.finish() + } +} +impl Debug for Lite<syn::AssocType> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("AssocType"); + formatter.field("ident", Lite(&self.value.ident)); + if let Some(val) = &self.value.generics { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::AngleBracketedGenericArguments); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("generics", Print::ref_cast(val)); + } + formatter.field("ty", Lite(&self.value.ty)); + formatter.finish() + } +} +impl Debug for Lite<syn::AttrStyle> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + match &self.value { + syn::AttrStyle::Outer => formatter.write_str("AttrStyle::Outer"), + syn::AttrStyle::Inner(_val) => { + formatter.write_str("AttrStyle::Inner")?; + Ok(()) + } + } + } +} +impl Debug for Lite<syn::Attribute> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("Attribute"); + formatter.field("style", Lite(&self.value.style)); + formatter.field("meta", Lite(&self.value.meta)); + formatter.finish() + } +} +impl Debug for Lite<syn::BareFnArg> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("BareFnArg"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + if let Some(val) = &self.value.name { + #[derive(RefCast)] + #[repr(transparent)] + struct Print((proc_macro2::Ident, syn::token::Colon)); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("name", Print::ref_cast(val)); + } + formatter.field("ty", Lite(&self.value.ty)); + formatter.finish() + } +} +impl Debug for Lite<syn::BareVariadic> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("BareVariadic"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + if let Some(val) = &self.value.name { + #[derive(RefCast)] + #[repr(transparent)] + struct Print((proc_macro2::Ident, syn::token::Colon)); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("name", Print::ref_cast(val)); + } + if self.value.comma.is_some() { + formatter.field("comma", &Present); + } + formatter.finish() + } +} +impl Debug for Lite<syn::BinOp> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + match &self.value { + syn::BinOp::Add(_val) => { + formatter.write_str("BinOp::Add")?; + Ok(()) + } + syn::BinOp::Sub(_val) => { + formatter.write_str("BinOp::Sub")?; + Ok(()) + } + syn::BinOp::Mul(_val) => { + formatter.write_str("BinOp::Mul")?; + Ok(()) + } + syn::BinOp::Div(_val) => { + formatter.write_str("BinOp::Div")?; + Ok(()) + } + syn::BinOp::Rem(_val) => { + formatter.write_str("BinOp::Rem")?; + Ok(()) + } + syn::BinOp::And(_val) => { + formatter.write_str("BinOp::And")?; + Ok(()) + } + syn::BinOp::Or(_val) => { + formatter.write_str("BinOp::Or")?; + Ok(()) + } + syn::BinOp::BitXor(_val) => { + formatter.write_str("BinOp::BitXor")?; + Ok(()) + } + syn::BinOp::BitAnd(_val) => { + formatter.write_str("BinOp::BitAnd")?; + Ok(()) + } + syn::BinOp::BitOr(_val) => { + formatter.write_str("BinOp::BitOr")?; + Ok(()) + } + syn::BinOp::Shl(_val) => { + formatter.write_str("BinOp::Shl")?; + Ok(()) + } + syn::BinOp::Shr(_val) => { + formatter.write_str("BinOp::Shr")?; + Ok(()) + } + syn::BinOp::Eq(_val) => { + formatter.write_str("BinOp::Eq")?; + Ok(()) + } + syn::BinOp::Lt(_val) => { + formatter.write_str("BinOp::Lt")?; + Ok(()) + } + syn::BinOp::Le(_val) => { + formatter.write_str("BinOp::Le")?; + Ok(()) + } + syn::BinOp::Ne(_val) => { + formatter.write_str("BinOp::Ne")?; + Ok(()) + } + syn::BinOp::Ge(_val) => { + formatter.write_str("BinOp::Ge")?; + Ok(()) + } + syn::BinOp::Gt(_val) => { + formatter.write_str("BinOp::Gt")?; + Ok(()) + } + syn::BinOp::AddAssign(_val) => { + formatter.write_str("BinOp::AddAssign")?; + Ok(()) + } + syn::BinOp::SubAssign(_val) => { + formatter.write_str("BinOp::SubAssign")?; + Ok(()) + } + syn::BinOp::MulAssign(_val) => { + formatter.write_str("BinOp::MulAssign")?; + Ok(()) + } + syn::BinOp::DivAssign(_val) => { + formatter.write_str("BinOp::DivAssign")?; + Ok(()) + } + syn::BinOp::RemAssign(_val) => { + formatter.write_str("BinOp::RemAssign")?; + Ok(()) + } + syn::BinOp::BitXorAssign(_val) => { + formatter.write_str("BinOp::BitXorAssign")?; + Ok(()) + } + syn::BinOp::BitAndAssign(_val) => { + formatter.write_str("BinOp::BitAndAssign")?; + Ok(()) + } + syn::BinOp::BitOrAssign(_val) => { + formatter.write_str("BinOp::BitOrAssign")?; + Ok(()) + } + syn::BinOp::ShlAssign(_val) => { + formatter.write_str("BinOp::ShlAssign")?; + Ok(()) + } + syn::BinOp::ShrAssign(_val) => { + formatter.write_str("BinOp::ShrAssign")?; + Ok(()) + } + _ => unreachable!(), + } + } +} +impl Debug for Lite<syn::Block> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("Block"); + formatter.field("stmts", Lite(&self.value.stmts)); + formatter.finish() + } +} +impl Debug for Lite<syn::BoundLifetimes> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("BoundLifetimes"); + if !self.value.lifetimes.is_empty() { + formatter.field("lifetimes", Lite(&self.value.lifetimes)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::CapturedParam> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + match &self.value { + syn::CapturedParam::Lifetime(_val) => { + formatter.write_str("CapturedParam::Lifetime")?; + formatter.write_str("(")?; + Debug::fmt(Lite(_val), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + syn::CapturedParam::Ident(_val) => { + formatter.write_str("CapturedParam::Ident")?; + formatter.write_str("(")?; + Debug::fmt(Lite(_val), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + _ => unreachable!(), + } + } +} +impl Debug for Lite<syn::ConstParam> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ConstParam"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("ident", Lite(&self.value.ident)); + formatter.field("ty", Lite(&self.value.ty)); + if self.value.eq_token.is_some() { + formatter.field("eq_token", &Present); + } + if let Some(val) = &self.value.default { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::Expr); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("default", Print::ref_cast(val)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::Constraint> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("Constraint"); + formatter.field("ident", Lite(&self.value.ident)); + if let Some(val) = &self.value.generics { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::AngleBracketedGenericArguments); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("generics", Print::ref_cast(val)); + } + if !self.value.bounds.is_empty() { + formatter.field("bounds", Lite(&self.value.bounds)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::Data> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + match &self.value { + syn::Data::Struct(_val) => { + let mut formatter = formatter.debug_struct("Data::Struct"); + formatter.field("fields", Lite(&_val.fields)); + if _val.semi_token.is_some() { + formatter.field("semi_token", &Present); + } + formatter.finish() + } + syn::Data::Enum(_val) => { + let mut formatter = formatter.debug_struct("Data::Enum"); + if !_val.variants.is_empty() { + formatter.field("variants", Lite(&_val.variants)); + } + formatter.finish() + } + syn::Data::Union(_val) => { + let mut formatter = formatter.debug_struct("Data::Union"); + formatter.field("fields", Lite(&_val.fields)); + formatter.finish() + } + } + } +} +impl Debug for Lite<syn::DataEnum> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("DataEnum"); + if !self.value.variants.is_empty() { + formatter.field("variants", Lite(&self.value.variants)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::DataStruct> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("DataStruct"); + formatter.field("fields", Lite(&self.value.fields)); + if self.value.semi_token.is_some() { + formatter.field("semi_token", &Present); + } + formatter.finish() + } +} +impl Debug for Lite<syn::DataUnion> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("DataUnion"); + formatter.field("fields", Lite(&self.value.fields)); + formatter.finish() + } +} +impl Debug for Lite<syn::DeriveInput> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("DeriveInput"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("vis", Lite(&self.value.vis)); + formatter.field("ident", Lite(&self.value.ident)); + formatter.field("generics", Lite(&self.value.generics)); + formatter.field("data", Lite(&self.value.data)); + formatter.finish() + } +} +impl Debug for Lite<syn::Expr> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + match &self.value { + syn::Expr::Array(_val) => { + let mut formatter = formatter.debug_struct("Expr::Array"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + if !_val.elems.is_empty() { + formatter.field("elems", Lite(&_val.elems)); + } + formatter.finish() + } + syn::Expr::Assign(_val) => { + let mut formatter = formatter.debug_struct("Expr::Assign"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("left", Lite(&_val.left)); + formatter.field("right", Lite(&_val.right)); + formatter.finish() + } + syn::Expr::Async(_val) => { + let mut formatter = formatter.debug_struct("Expr::Async"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + if _val.capture.is_some() { + formatter.field("capture", &Present); + } + formatter.field("block", Lite(&_val.block)); + formatter.finish() + } + syn::Expr::Await(_val) => { + let mut formatter = formatter.debug_struct("Expr::Await"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("base", Lite(&_val.base)); + formatter.finish() + } + syn::Expr::Binary(_val) => { + let mut formatter = formatter.debug_struct("Expr::Binary"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("left", Lite(&_val.left)); + formatter.field("op", Lite(&_val.op)); + formatter.field("right", Lite(&_val.right)); + formatter.finish() + } + syn::Expr::Block(_val) => { + let mut formatter = formatter.debug_struct("Expr::Block"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + if let Some(val) = &_val.label { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::Label); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("label", Print::ref_cast(val)); + } + formatter.field("block", Lite(&_val.block)); + formatter.finish() + } + syn::Expr::Break(_val) => { + let mut formatter = formatter.debug_struct("Expr::Break"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + if let Some(val) = &_val.label { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::Lifetime); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("label", Print::ref_cast(val)); + } + if let Some(val) = &_val.expr { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(Box<syn::Expr>); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("expr", Print::ref_cast(val)); + } + formatter.finish() + } + syn::Expr::Call(_val) => { + let mut formatter = formatter.debug_struct("Expr::Call"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("func", Lite(&_val.func)); + if !_val.args.is_empty() { + formatter.field("args", Lite(&_val.args)); + } + formatter.finish() + } + syn::Expr::Cast(_val) => { + let mut formatter = formatter.debug_struct("Expr::Cast"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("expr", Lite(&_val.expr)); + formatter.field("ty", Lite(&_val.ty)); + formatter.finish() + } + syn::Expr::Closure(_val) => { + let mut formatter = formatter.debug_struct("Expr::Closure"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + if let Some(val) = &_val.lifetimes { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::BoundLifetimes); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("lifetimes", Print::ref_cast(val)); + } + if _val.constness.is_some() { + formatter.field("constness", &Present); + } + if _val.movability.is_some() { + formatter.field("movability", &Present); + } + if _val.asyncness.is_some() { + formatter.field("asyncness", &Present); + } + if _val.capture.is_some() { + formatter.field("capture", &Present); + } + if !_val.inputs.is_empty() { + formatter.field("inputs", Lite(&_val.inputs)); + } + formatter.field("output", Lite(&_val.output)); + formatter.field("body", Lite(&_val.body)); + formatter.finish() + } + syn::Expr::Const(_val) => { + let mut formatter = formatter.debug_struct("Expr::Const"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("block", Lite(&_val.block)); + formatter.finish() + } + syn::Expr::Continue(_val) => { + let mut formatter = formatter.debug_struct("Expr::Continue"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + if let Some(val) = &_val.label { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::Lifetime); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("label", Print::ref_cast(val)); + } + formatter.finish() + } + syn::Expr::Field(_val) => { + let mut formatter = formatter.debug_struct("Expr::Field"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("base", Lite(&_val.base)); + formatter.field("member", Lite(&_val.member)); + formatter.finish() + } + syn::Expr::ForLoop(_val) => { + let mut formatter = formatter.debug_struct("Expr::ForLoop"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + if let Some(val) = &_val.label { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::Label); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("label", Print::ref_cast(val)); + } + formatter.field("pat", Lite(&_val.pat)); + formatter.field("expr", Lite(&_val.expr)); + formatter.field("body", Lite(&_val.body)); + formatter.finish() + } + syn::Expr::Group(_val) => { + let mut formatter = formatter.debug_struct("Expr::Group"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("expr", Lite(&_val.expr)); + formatter.finish() + } + syn::Expr::If(_val) => { + let mut formatter = formatter.debug_struct("Expr::If"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("cond", Lite(&_val.cond)); + formatter.field("then_branch", Lite(&_val.then_branch)); + if let Some(val) = &_val.else_branch { + #[derive(RefCast)] + #[repr(transparent)] + struct Print((syn::token::Else, Box<syn::Expr>)); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0.1), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("else_branch", Print::ref_cast(val)); + } + formatter.finish() + } + syn::Expr::Index(_val) => { + let mut formatter = formatter.debug_struct("Expr::Index"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("expr", Lite(&_val.expr)); + formatter.field("index", Lite(&_val.index)); + formatter.finish() + } + syn::Expr::Infer(_val) => { + let mut formatter = formatter.debug_struct("Expr::Infer"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.finish() + } + syn::Expr::Let(_val) => { + let mut formatter = formatter.debug_struct("Expr::Let"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("pat", Lite(&_val.pat)); + formatter.field("expr", Lite(&_val.expr)); + formatter.finish() + } + syn::Expr::Lit(_val) => { + let mut formatter = formatter.debug_struct("Expr::Lit"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("lit", Lite(&_val.lit)); + formatter.finish() + } + syn::Expr::Loop(_val) => { + let mut formatter = formatter.debug_struct("Expr::Loop"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + if let Some(val) = &_val.label { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::Label); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("label", Print::ref_cast(val)); + } + formatter.field("body", Lite(&_val.body)); + formatter.finish() + } + syn::Expr::Macro(_val) => { + let mut formatter = formatter.debug_struct("Expr::Macro"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("mac", Lite(&_val.mac)); + formatter.finish() + } + syn::Expr::Match(_val) => { + let mut formatter = formatter.debug_struct("Expr::Match"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("expr", Lite(&_val.expr)); + if !_val.arms.is_empty() { + formatter.field("arms", Lite(&_val.arms)); + } + formatter.finish() + } + syn::Expr::MethodCall(_val) => { + let mut formatter = formatter.debug_struct("Expr::MethodCall"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("receiver", Lite(&_val.receiver)); + formatter.field("method", Lite(&_val.method)); + if let Some(val) = &_val.turbofish { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::AngleBracketedGenericArguments); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("turbofish", Print::ref_cast(val)); + } + if !_val.args.is_empty() { + formatter.field("args", Lite(&_val.args)); + } + formatter.finish() + } + syn::Expr::Paren(_val) => { + let mut formatter = formatter.debug_struct("Expr::Paren"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("expr", Lite(&_val.expr)); + formatter.finish() + } + syn::Expr::Path(_val) => { + let mut formatter = formatter.debug_struct("Expr::Path"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + if let Some(val) = &_val.qself { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::QSelf); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("qself", Print::ref_cast(val)); + } + formatter.field("path", Lite(&_val.path)); + formatter.finish() + } + syn::Expr::Range(_val) => { + let mut formatter = formatter.debug_struct("Expr::Range"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + if let Some(val) = &_val.start { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(Box<syn::Expr>); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("start", Print::ref_cast(val)); + } + formatter.field("limits", Lite(&_val.limits)); + if let Some(val) = &_val.end { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(Box<syn::Expr>); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("end", Print::ref_cast(val)); + } + formatter.finish() + } + syn::Expr::RawAddr(_val) => { + let mut formatter = formatter.debug_struct("Expr::RawAddr"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("mutability", Lite(&_val.mutability)); + formatter.field("expr", Lite(&_val.expr)); + formatter.finish() + } + syn::Expr::Reference(_val) => { + let mut formatter = formatter.debug_struct("Expr::Reference"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + if _val.mutability.is_some() { + formatter.field("mutability", &Present); + } + formatter.field("expr", Lite(&_val.expr)); + formatter.finish() + } + syn::Expr::Repeat(_val) => { + let mut formatter = formatter.debug_struct("Expr::Repeat"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("expr", Lite(&_val.expr)); + formatter.field("len", Lite(&_val.len)); + formatter.finish() + } + syn::Expr::Return(_val) => { + let mut formatter = formatter.debug_struct("Expr::Return"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + if let Some(val) = &_val.expr { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(Box<syn::Expr>); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("expr", Print::ref_cast(val)); + } + formatter.finish() + } + syn::Expr::Struct(_val) => { + let mut formatter = formatter.debug_struct("Expr::Struct"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + if let Some(val) = &_val.qself { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::QSelf); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("qself", Print::ref_cast(val)); + } + formatter.field("path", Lite(&_val.path)); + if !_val.fields.is_empty() { + formatter.field("fields", Lite(&_val.fields)); + } + if _val.dot2_token.is_some() { + formatter.field("dot2_token", &Present); + } + if let Some(val) = &_val.rest { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(Box<syn::Expr>); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("rest", Print::ref_cast(val)); + } + formatter.finish() + } + syn::Expr::Try(_val) => { + let mut formatter = formatter.debug_struct("Expr::Try"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("expr", Lite(&_val.expr)); + formatter.finish() + } + syn::Expr::TryBlock(_val) => { + let mut formatter = formatter.debug_struct("Expr::TryBlock"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("block", Lite(&_val.block)); + formatter.finish() + } + syn::Expr::Tuple(_val) => { + let mut formatter = formatter.debug_struct("Expr::Tuple"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + if !_val.elems.is_empty() { + formatter.field("elems", Lite(&_val.elems)); + } + formatter.finish() + } + syn::Expr::Unary(_val) => { + let mut formatter = formatter.debug_struct("Expr::Unary"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("op", Lite(&_val.op)); + formatter.field("expr", Lite(&_val.expr)); + formatter.finish() + } + syn::Expr::Unsafe(_val) => { + let mut formatter = formatter.debug_struct("Expr::Unsafe"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("block", Lite(&_val.block)); + formatter.finish() + } + syn::Expr::Verbatim(_val) => { + formatter.write_str("Expr::Verbatim")?; + formatter.write_str("(`")?; + Display::fmt(_val, formatter)?; + formatter.write_str("`)")?; + Ok(()) + } + syn::Expr::While(_val) => { + let mut formatter = formatter.debug_struct("Expr::While"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + if let Some(val) = &_val.label { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::Label); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("label", Print::ref_cast(val)); + } + formatter.field("cond", Lite(&_val.cond)); + formatter.field("body", Lite(&_val.body)); + formatter.finish() + } + syn::Expr::Yield(_val) => { + let mut formatter = formatter.debug_struct("Expr::Yield"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + if let Some(val) = &_val.expr { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(Box<syn::Expr>); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("expr", Print::ref_cast(val)); + } + formatter.finish() + } + _ => unreachable!(), + } + } +} +impl Debug for Lite<syn::ExprArray> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ExprArray"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + if !self.value.elems.is_empty() { + formatter.field("elems", Lite(&self.value.elems)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::ExprAssign> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ExprAssign"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("left", Lite(&self.value.left)); + formatter.field("right", Lite(&self.value.right)); + formatter.finish() + } +} +impl Debug for Lite<syn::ExprAsync> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ExprAsync"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + if self.value.capture.is_some() { + formatter.field("capture", &Present); + } + formatter.field("block", Lite(&self.value.block)); + formatter.finish() + } +} +impl Debug for Lite<syn::ExprAwait> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ExprAwait"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("base", Lite(&self.value.base)); + formatter.finish() + } +} +impl Debug for Lite<syn::ExprBinary> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ExprBinary"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("left", Lite(&self.value.left)); + formatter.field("op", Lite(&self.value.op)); + formatter.field("right", Lite(&self.value.right)); + formatter.finish() + } +} +impl Debug for Lite<syn::ExprBlock> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ExprBlock"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + if let Some(val) = &self.value.label { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::Label); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("label", Print::ref_cast(val)); + } + formatter.field("block", Lite(&self.value.block)); + formatter.finish() + } +} +impl Debug for Lite<syn::ExprBreak> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ExprBreak"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + if let Some(val) = &self.value.label { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::Lifetime); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("label", Print::ref_cast(val)); + } + if let Some(val) = &self.value.expr { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(Box<syn::Expr>); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("expr", Print::ref_cast(val)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::ExprCall> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ExprCall"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("func", Lite(&self.value.func)); + if !self.value.args.is_empty() { + formatter.field("args", Lite(&self.value.args)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::ExprCast> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ExprCast"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("expr", Lite(&self.value.expr)); + formatter.field("ty", Lite(&self.value.ty)); + formatter.finish() + } +} +impl Debug for Lite<syn::ExprClosure> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ExprClosure"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + if let Some(val) = &self.value.lifetimes { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::BoundLifetimes); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("lifetimes", Print::ref_cast(val)); + } + if self.value.constness.is_some() { + formatter.field("constness", &Present); + } + if self.value.movability.is_some() { + formatter.field("movability", &Present); + } + if self.value.asyncness.is_some() { + formatter.field("asyncness", &Present); + } + if self.value.capture.is_some() { + formatter.field("capture", &Present); + } + if !self.value.inputs.is_empty() { + formatter.field("inputs", Lite(&self.value.inputs)); + } + formatter.field("output", Lite(&self.value.output)); + formatter.field("body", Lite(&self.value.body)); + formatter.finish() + } +} +impl Debug for Lite<syn::ExprConst> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ExprConst"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("block", Lite(&self.value.block)); + formatter.finish() + } +} +impl Debug for Lite<syn::ExprContinue> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ExprContinue"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + if let Some(val) = &self.value.label { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::Lifetime); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("label", Print::ref_cast(val)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::ExprField> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ExprField"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("base", Lite(&self.value.base)); + formatter.field("member", Lite(&self.value.member)); + formatter.finish() + } +} +impl Debug for Lite<syn::ExprForLoop> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ExprForLoop"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + if let Some(val) = &self.value.label { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::Label); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("label", Print::ref_cast(val)); + } + formatter.field("pat", Lite(&self.value.pat)); + formatter.field("expr", Lite(&self.value.expr)); + formatter.field("body", Lite(&self.value.body)); + formatter.finish() + } +} +impl Debug for Lite<syn::ExprGroup> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ExprGroup"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("expr", Lite(&self.value.expr)); + formatter.finish() + } +} +impl Debug for Lite<syn::ExprIf> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ExprIf"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("cond", Lite(&self.value.cond)); + formatter.field("then_branch", Lite(&self.value.then_branch)); + if let Some(val) = &self.value.else_branch { + #[derive(RefCast)] + #[repr(transparent)] + struct Print((syn::token::Else, Box<syn::Expr>)); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0.1), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("else_branch", Print::ref_cast(val)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::ExprIndex> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ExprIndex"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("expr", Lite(&self.value.expr)); + formatter.field("index", Lite(&self.value.index)); + formatter.finish() + } +} +impl Debug for Lite<syn::ExprInfer> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ExprInfer"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::ExprLet> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ExprLet"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("pat", Lite(&self.value.pat)); + formatter.field("expr", Lite(&self.value.expr)); + formatter.finish() + } +} +impl Debug for Lite<syn::ExprLit> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ExprLit"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("lit", Lite(&self.value.lit)); + formatter.finish() + } +} +impl Debug for Lite<syn::ExprLoop> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ExprLoop"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + if let Some(val) = &self.value.label { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::Label); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("label", Print::ref_cast(val)); + } + formatter.field("body", Lite(&self.value.body)); + formatter.finish() + } +} +impl Debug for Lite<syn::ExprMacro> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ExprMacro"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("mac", Lite(&self.value.mac)); + formatter.finish() + } +} +impl Debug for Lite<syn::ExprMatch> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ExprMatch"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("expr", Lite(&self.value.expr)); + if !self.value.arms.is_empty() { + formatter.field("arms", Lite(&self.value.arms)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::ExprMethodCall> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ExprMethodCall"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("receiver", Lite(&self.value.receiver)); + formatter.field("method", Lite(&self.value.method)); + if let Some(val) = &self.value.turbofish { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::AngleBracketedGenericArguments); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("turbofish", Print::ref_cast(val)); + } + if !self.value.args.is_empty() { + formatter.field("args", Lite(&self.value.args)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::ExprParen> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ExprParen"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("expr", Lite(&self.value.expr)); + formatter.finish() + } +} +impl Debug for Lite<syn::ExprPath> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ExprPath"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + if let Some(val) = &self.value.qself { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::QSelf); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("qself", Print::ref_cast(val)); + } + formatter.field("path", Lite(&self.value.path)); + formatter.finish() + } +} +impl Debug for Lite<syn::ExprRange> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ExprRange"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + if let Some(val) = &self.value.start { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(Box<syn::Expr>); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("start", Print::ref_cast(val)); + } + formatter.field("limits", Lite(&self.value.limits)); + if let Some(val) = &self.value.end { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(Box<syn::Expr>); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("end", Print::ref_cast(val)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::ExprRawAddr> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ExprRawAddr"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("mutability", Lite(&self.value.mutability)); + formatter.field("expr", Lite(&self.value.expr)); + formatter.finish() + } +} +impl Debug for Lite<syn::ExprReference> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ExprReference"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + if self.value.mutability.is_some() { + formatter.field("mutability", &Present); + } + formatter.field("expr", Lite(&self.value.expr)); + formatter.finish() + } +} +impl Debug for Lite<syn::ExprRepeat> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ExprRepeat"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("expr", Lite(&self.value.expr)); + formatter.field("len", Lite(&self.value.len)); + formatter.finish() + } +} +impl Debug for Lite<syn::ExprReturn> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ExprReturn"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + if let Some(val) = &self.value.expr { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(Box<syn::Expr>); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("expr", Print::ref_cast(val)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::ExprStruct> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ExprStruct"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + if let Some(val) = &self.value.qself { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::QSelf); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("qself", Print::ref_cast(val)); + } + formatter.field("path", Lite(&self.value.path)); + if !self.value.fields.is_empty() { + formatter.field("fields", Lite(&self.value.fields)); + } + if self.value.dot2_token.is_some() { + formatter.field("dot2_token", &Present); + } + if let Some(val) = &self.value.rest { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(Box<syn::Expr>); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("rest", Print::ref_cast(val)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::ExprTry> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ExprTry"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("expr", Lite(&self.value.expr)); + formatter.finish() + } +} +impl Debug for Lite<syn::ExprTryBlock> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ExprTryBlock"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("block", Lite(&self.value.block)); + formatter.finish() + } +} +impl Debug for Lite<syn::ExprTuple> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ExprTuple"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + if !self.value.elems.is_empty() { + formatter.field("elems", Lite(&self.value.elems)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::ExprUnary> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ExprUnary"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("op", Lite(&self.value.op)); + formatter.field("expr", Lite(&self.value.expr)); + formatter.finish() + } +} +impl Debug for Lite<syn::ExprUnsafe> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ExprUnsafe"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("block", Lite(&self.value.block)); + formatter.finish() + } +} +impl Debug for Lite<syn::ExprWhile> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ExprWhile"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + if let Some(val) = &self.value.label { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::Label); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("label", Print::ref_cast(val)); + } + formatter.field("cond", Lite(&self.value.cond)); + formatter.field("body", Lite(&self.value.body)); + formatter.finish() + } +} +impl Debug for Lite<syn::ExprYield> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ExprYield"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + if let Some(val) = &self.value.expr { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(Box<syn::Expr>); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("expr", Print::ref_cast(val)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::Field> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("Field"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("vis", Lite(&self.value.vis)); + match self.value.mutability { + syn::FieldMutability::None => {} + _ => { + formatter.field("mutability", Lite(&self.value.mutability)); + } + } + if let Some(val) = &self.value.ident { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(proc_macro2::Ident); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("ident", Print::ref_cast(val)); + } + if self.value.colon_token.is_some() { + formatter.field("colon_token", &Present); + } + formatter.field("ty", Lite(&self.value.ty)); + formatter.finish() + } +} +impl Debug for Lite<syn::FieldMutability> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + match &self.value { + syn::FieldMutability::None => formatter.write_str("FieldMutability::None"), + _ => unreachable!(), + } + } +} +impl Debug for Lite<syn::FieldPat> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("FieldPat"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("member", Lite(&self.value.member)); + if self.value.colon_token.is_some() { + formatter.field("colon_token", &Present); + } + formatter.field("pat", Lite(&self.value.pat)); + formatter.finish() + } +} +impl Debug for Lite<syn::FieldValue> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("FieldValue"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("member", Lite(&self.value.member)); + if self.value.colon_token.is_some() { + formatter.field("colon_token", &Present); + } + formatter.field("expr", Lite(&self.value.expr)); + formatter.finish() + } +} +impl Debug for Lite<syn::Fields> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + match &self.value { + syn::Fields::Named(_val) => { + let mut formatter = formatter.debug_struct("Fields::Named"); + if !_val.named.is_empty() { + formatter.field("named", Lite(&_val.named)); + } + formatter.finish() + } + syn::Fields::Unnamed(_val) => { + let mut formatter = formatter.debug_struct("Fields::Unnamed"); + if !_val.unnamed.is_empty() { + formatter.field("unnamed", Lite(&_val.unnamed)); + } + formatter.finish() + } + syn::Fields::Unit => formatter.write_str("Fields::Unit"), + } + } +} +impl Debug for Lite<syn::FieldsNamed> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("FieldsNamed"); + if !self.value.named.is_empty() { + formatter.field("named", Lite(&self.value.named)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::FieldsUnnamed> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("FieldsUnnamed"); + if !self.value.unnamed.is_empty() { + formatter.field("unnamed", Lite(&self.value.unnamed)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::File> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("File"); + if let Some(val) = &self.value.shebang { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(String); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("shebang", Print::ref_cast(val)); + } + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + if !self.value.items.is_empty() { + formatter.field("items", Lite(&self.value.items)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::FnArg> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + match &self.value { + syn::FnArg::Receiver(_val) => { + formatter.write_str("FnArg::Receiver")?; + formatter.write_str("(")?; + Debug::fmt(Lite(_val), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + syn::FnArg::Typed(_val) => { + formatter.write_str("FnArg::Typed")?; + formatter.write_str("(")?; + Debug::fmt(Lite(_val), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + } +} +impl Debug for Lite<syn::ForeignItem> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + match &self.value { + syn::ForeignItem::Fn(_val) => { + let mut formatter = formatter.debug_struct("ForeignItem::Fn"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("vis", Lite(&_val.vis)); + formatter.field("sig", Lite(&_val.sig)); + formatter.finish() + } + syn::ForeignItem::Static(_val) => { + let mut formatter = formatter.debug_struct("ForeignItem::Static"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("vis", Lite(&_val.vis)); + match _val.mutability { + syn::StaticMutability::None => {} + _ => { + formatter.field("mutability", Lite(&_val.mutability)); + } + } + formatter.field("ident", Lite(&_val.ident)); + formatter.field("ty", Lite(&_val.ty)); + formatter.finish() + } + syn::ForeignItem::Type(_val) => { + let mut formatter = formatter.debug_struct("ForeignItem::Type"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("vis", Lite(&_val.vis)); + formatter.field("ident", Lite(&_val.ident)); + formatter.field("generics", Lite(&_val.generics)); + formatter.finish() + } + syn::ForeignItem::Macro(_val) => { + let mut formatter = formatter.debug_struct("ForeignItem::Macro"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("mac", Lite(&_val.mac)); + if _val.semi_token.is_some() { + formatter.field("semi_token", &Present); + } + formatter.finish() + } + syn::ForeignItem::Verbatim(_val) => { + formatter.write_str("ForeignItem::Verbatim")?; + formatter.write_str("(`")?; + Display::fmt(_val, formatter)?; + formatter.write_str("`)")?; + Ok(()) + } + _ => unreachable!(), + } + } +} +impl Debug for Lite<syn::ForeignItemFn> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ForeignItemFn"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("vis", Lite(&self.value.vis)); + formatter.field("sig", Lite(&self.value.sig)); + formatter.finish() + } +} +impl Debug for Lite<syn::ForeignItemMacro> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ForeignItemMacro"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("mac", Lite(&self.value.mac)); + if self.value.semi_token.is_some() { + formatter.field("semi_token", &Present); + } + formatter.finish() + } +} +impl Debug for Lite<syn::ForeignItemStatic> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ForeignItemStatic"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("vis", Lite(&self.value.vis)); + match self.value.mutability { + syn::StaticMutability::None => {} + _ => { + formatter.field("mutability", Lite(&self.value.mutability)); + } + } + formatter.field("ident", Lite(&self.value.ident)); + formatter.field("ty", Lite(&self.value.ty)); + formatter.finish() + } +} +impl Debug for Lite<syn::ForeignItemType> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ForeignItemType"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("vis", Lite(&self.value.vis)); + formatter.field("ident", Lite(&self.value.ident)); + formatter.field("generics", Lite(&self.value.generics)); + formatter.finish() + } +} +impl Debug for Lite<syn::GenericArgument> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + match &self.value { + syn::GenericArgument::Lifetime(_val) => { + formatter.write_str("GenericArgument::Lifetime")?; + formatter.write_str("(")?; + Debug::fmt(Lite(_val), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + syn::GenericArgument::Type(_val) => { + formatter.write_str("GenericArgument::Type")?; + formatter.write_str("(")?; + Debug::fmt(Lite(_val), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + syn::GenericArgument::Const(_val) => { + formatter.write_str("GenericArgument::Const")?; + formatter.write_str("(")?; + Debug::fmt(Lite(_val), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + syn::GenericArgument::AssocType(_val) => { + formatter.write_str("GenericArgument::AssocType")?; + formatter.write_str("(")?; + Debug::fmt(Lite(_val), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + syn::GenericArgument::AssocConst(_val) => { + formatter.write_str("GenericArgument::AssocConst")?; + formatter.write_str("(")?; + Debug::fmt(Lite(_val), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + syn::GenericArgument::Constraint(_val) => { + formatter.write_str("GenericArgument::Constraint")?; + formatter.write_str("(")?; + Debug::fmt(Lite(_val), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + _ => unreachable!(), + } + } +} +impl Debug for Lite<syn::GenericParam> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + match &self.value { + syn::GenericParam::Lifetime(_val) => { + formatter.write_str("GenericParam::Lifetime")?; + formatter.write_str("(")?; + Debug::fmt(Lite(_val), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + syn::GenericParam::Type(_val) => { + formatter.write_str("GenericParam::Type")?; + formatter.write_str("(")?; + Debug::fmt(Lite(_val), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + syn::GenericParam::Const(_val) => { + formatter.write_str("GenericParam::Const")?; + formatter.write_str("(")?; + Debug::fmt(Lite(_val), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + } +} +impl Debug for Lite<syn::Generics> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("Generics"); + if self.value.lt_token.is_some() { + formatter.field("lt_token", &Present); + } + if !self.value.params.is_empty() { + formatter.field("params", Lite(&self.value.params)); + } + if self.value.gt_token.is_some() { + formatter.field("gt_token", &Present); + } + if let Some(val) = &self.value.where_clause { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::WhereClause); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("where_clause", Print::ref_cast(val)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::ImplItem> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + match &self.value { + syn::ImplItem::Const(_val) => { + let mut formatter = formatter.debug_struct("ImplItem::Const"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("vis", Lite(&_val.vis)); + if _val.defaultness.is_some() { + formatter.field("defaultness", &Present); + } + formatter.field("ident", Lite(&_val.ident)); + formatter.field("generics", Lite(&_val.generics)); + formatter.field("ty", Lite(&_val.ty)); + formatter.field("expr", Lite(&_val.expr)); + formatter.finish() + } + syn::ImplItem::Fn(_val) => { + let mut formatter = formatter.debug_struct("ImplItem::Fn"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("vis", Lite(&_val.vis)); + if _val.defaultness.is_some() { + formatter.field("defaultness", &Present); + } + formatter.field("sig", Lite(&_val.sig)); + formatter.field("block", Lite(&_val.block)); + formatter.finish() + } + syn::ImplItem::Type(_val) => { + let mut formatter = formatter.debug_struct("ImplItem::Type"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("vis", Lite(&_val.vis)); + if _val.defaultness.is_some() { + formatter.field("defaultness", &Present); + } + formatter.field("ident", Lite(&_val.ident)); + formatter.field("generics", Lite(&_val.generics)); + formatter.field("ty", Lite(&_val.ty)); + formatter.finish() + } + syn::ImplItem::Macro(_val) => { + let mut formatter = formatter.debug_struct("ImplItem::Macro"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("mac", Lite(&_val.mac)); + if _val.semi_token.is_some() { + formatter.field("semi_token", &Present); + } + formatter.finish() + } + syn::ImplItem::Verbatim(_val) => { + formatter.write_str("ImplItem::Verbatim")?; + formatter.write_str("(`")?; + Display::fmt(_val, formatter)?; + formatter.write_str("`)")?; + Ok(()) + } + _ => unreachable!(), + } + } +} +impl Debug for Lite<syn::ImplItemConst> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ImplItemConst"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("vis", Lite(&self.value.vis)); + if self.value.defaultness.is_some() { + formatter.field("defaultness", &Present); + } + formatter.field("ident", Lite(&self.value.ident)); + formatter.field("generics", Lite(&self.value.generics)); + formatter.field("ty", Lite(&self.value.ty)); + formatter.field("expr", Lite(&self.value.expr)); + formatter.finish() + } +} +impl Debug for Lite<syn::ImplItemFn> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ImplItemFn"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("vis", Lite(&self.value.vis)); + if self.value.defaultness.is_some() { + formatter.field("defaultness", &Present); + } + formatter.field("sig", Lite(&self.value.sig)); + formatter.field("block", Lite(&self.value.block)); + formatter.finish() + } +} +impl Debug for Lite<syn::ImplItemMacro> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ImplItemMacro"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("mac", Lite(&self.value.mac)); + if self.value.semi_token.is_some() { + formatter.field("semi_token", &Present); + } + formatter.finish() + } +} +impl Debug for Lite<syn::ImplItemType> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ImplItemType"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("vis", Lite(&self.value.vis)); + if self.value.defaultness.is_some() { + formatter.field("defaultness", &Present); + } + formatter.field("ident", Lite(&self.value.ident)); + formatter.field("generics", Lite(&self.value.generics)); + formatter.field("ty", Lite(&self.value.ty)); + formatter.finish() + } +} +impl Debug for Lite<syn::ImplRestriction> { + fn fmt(&self, _formatter: &mut fmt::Formatter) -> fmt::Result { + unreachable!() + } +} +impl Debug for Lite<syn::Index> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("Index"); + formatter.field("index", Lite(&self.value.index)); + formatter.finish() + } +} +impl Debug for Lite<syn::Item> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + match &self.value { + syn::Item::Const(_val) => { + let mut formatter = formatter.debug_struct("Item::Const"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("vis", Lite(&_val.vis)); + formatter.field("ident", Lite(&_val.ident)); + formatter.field("generics", Lite(&_val.generics)); + formatter.field("ty", Lite(&_val.ty)); + formatter.field("expr", Lite(&_val.expr)); + formatter.finish() + } + syn::Item::Enum(_val) => { + let mut formatter = formatter.debug_struct("Item::Enum"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("vis", Lite(&_val.vis)); + formatter.field("ident", Lite(&_val.ident)); + formatter.field("generics", Lite(&_val.generics)); + if !_val.variants.is_empty() { + formatter.field("variants", Lite(&_val.variants)); + } + formatter.finish() + } + syn::Item::ExternCrate(_val) => { + let mut formatter = formatter.debug_struct("Item::ExternCrate"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("vis", Lite(&_val.vis)); + formatter.field("ident", Lite(&_val.ident)); + if let Some(val) = &_val.rename { + #[derive(RefCast)] + #[repr(transparent)] + struct Print((syn::token::As, proc_macro2::Ident)); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0.1), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("rename", Print::ref_cast(val)); + } + formatter.finish() + } + syn::Item::Fn(_val) => { + let mut formatter = formatter.debug_struct("Item::Fn"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("vis", Lite(&_val.vis)); + formatter.field("sig", Lite(&_val.sig)); + formatter.field("block", Lite(&_val.block)); + formatter.finish() + } + syn::Item::ForeignMod(_val) => { + let mut formatter = formatter.debug_struct("Item::ForeignMod"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + if _val.unsafety.is_some() { + formatter.field("unsafety", &Present); + } + formatter.field("abi", Lite(&_val.abi)); + if !_val.items.is_empty() { + formatter.field("items", Lite(&_val.items)); + } + formatter.finish() + } + syn::Item::Impl(_val) => { + let mut formatter = formatter.debug_struct("Item::Impl"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + if _val.defaultness.is_some() { + formatter.field("defaultness", &Present); + } + if _val.unsafety.is_some() { + formatter.field("unsafety", &Present); + } + formatter.field("generics", Lite(&_val.generics)); + if let Some(val) = &_val.trait_ { + #[derive(RefCast)] + #[repr(transparent)] + struct Print((Option<syn::token::Not>, syn::Path, syn::token::For)); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt( + &( + &super::Option { + present: self.0.0.is_some(), + }, + Lite(&self.0.1), + ), + formatter, + )?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("trait_", Print::ref_cast(val)); + } + formatter.field("self_ty", Lite(&_val.self_ty)); + if !_val.items.is_empty() { + formatter.field("items", Lite(&_val.items)); + } + formatter.finish() + } + syn::Item::Macro(_val) => { + let mut formatter = formatter.debug_struct("Item::Macro"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + if let Some(val) = &_val.ident { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(proc_macro2::Ident); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("ident", Print::ref_cast(val)); + } + formatter.field("mac", Lite(&_val.mac)); + if _val.semi_token.is_some() { + formatter.field("semi_token", &Present); + } + formatter.finish() + } + syn::Item::Mod(_val) => { + let mut formatter = formatter.debug_struct("Item::Mod"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("vis", Lite(&_val.vis)); + if _val.unsafety.is_some() { + formatter.field("unsafety", &Present); + } + formatter.field("ident", Lite(&_val.ident)); + if let Some(val) = &_val.content { + #[derive(RefCast)] + #[repr(transparent)] + struct Print((syn::token::Brace, Vec<syn::Item>)); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0.1), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("content", Print::ref_cast(val)); + } + if _val.semi.is_some() { + formatter.field("semi", &Present); + } + formatter.finish() + } + syn::Item::Static(_val) => { + let mut formatter = formatter.debug_struct("Item::Static"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("vis", Lite(&_val.vis)); + match _val.mutability { + syn::StaticMutability::None => {} + _ => { + formatter.field("mutability", Lite(&_val.mutability)); + } + } + formatter.field("ident", Lite(&_val.ident)); + formatter.field("ty", Lite(&_val.ty)); + formatter.field("expr", Lite(&_val.expr)); + formatter.finish() + } + syn::Item::Struct(_val) => { + let mut formatter = formatter.debug_struct("Item::Struct"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("vis", Lite(&_val.vis)); + formatter.field("ident", Lite(&_val.ident)); + formatter.field("generics", Lite(&_val.generics)); + formatter.field("fields", Lite(&_val.fields)); + if _val.semi_token.is_some() { + formatter.field("semi_token", &Present); + } + formatter.finish() + } + syn::Item::Trait(_val) => { + let mut formatter = formatter.debug_struct("Item::Trait"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("vis", Lite(&_val.vis)); + if _val.unsafety.is_some() { + formatter.field("unsafety", &Present); + } + if _val.auto_token.is_some() { + formatter.field("auto_token", &Present); + } + if let Some(val) = &_val.restriction { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::ImplRestriction); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("restriction", Print::ref_cast(val)); + } + formatter.field("ident", Lite(&_val.ident)); + formatter.field("generics", Lite(&_val.generics)); + if _val.colon_token.is_some() { + formatter.field("colon_token", &Present); + } + if !_val.supertraits.is_empty() { + formatter.field("supertraits", Lite(&_val.supertraits)); + } + if !_val.items.is_empty() { + formatter.field("items", Lite(&_val.items)); + } + formatter.finish() + } + syn::Item::TraitAlias(_val) => { + let mut formatter = formatter.debug_struct("Item::TraitAlias"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("vis", Lite(&_val.vis)); + formatter.field("ident", Lite(&_val.ident)); + formatter.field("generics", Lite(&_val.generics)); + if !_val.bounds.is_empty() { + formatter.field("bounds", Lite(&_val.bounds)); + } + formatter.finish() + } + syn::Item::Type(_val) => { + let mut formatter = formatter.debug_struct("Item::Type"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("vis", Lite(&_val.vis)); + formatter.field("ident", Lite(&_val.ident)); + formatter.field("generics", Lite(&_val.generics)); + formatter.field("ty", Lite(&_val.ty)); + formatter.finish() + } + syn::Item::Union(_val) => { + let mut formatter = formatter.debug_struct("Item::Union"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("vis", Lite(&_val.vis)); + formatter.field("ident", Lite(&_val.ident)); + formatter.field("generics", Lite(&_val.generics)); + formatter.field("fields", Lite(&_val.fields)); + formatter.finish() + } + syn::Item::Use(_val) => { + let mut formatter = formatter.debug_struct("Item::Use"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("vis", Lite(&_val.vis)); + if _val.leading_colon.is_some() { + formatter.field("leading_colon", &Present); + } + formatter.field("tree", Lite(&_val.tree)); + formatter.finish() + } + syn::Item::Verbatim(_val) => { + formatter.write_str("Item::Verbatim")?; + formatter.write_str("(`")?; + Display::fmt(_val, formatter)?; + formatter.write_str("`)")?; + Ok(()) + } + _ => unreachable!(), + } + } +} +impl Debug for Lite<syn::ItemConst> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ItemConst"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("vis", Lite(&self.value.vis)); + formatter.field("ident", Lite(&self.value.ident)); + formatter.field("generics", Lite(&self.value.generics)); + formatter.field("ty", Lite(&self.value.ty)); + formatter.field("expr", Lite(&self.value.expr)); + formatter.finish() + } +} +impl Debug for Lite<syn::ItemEnum> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ItemEnum"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("vis", Lite(&self.value.vis)); + formatter.field("ident", Lite(&self.value.ident)); + formatter.field("generics", Lite(&self.value.generics)); + if !self.value.variants.is_empty() { + formatter.field("variants", Lite(&self.value.variants)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::ItemExternCrate> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ItemExternCrate"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("vis", Lite(&self.value.vis)); + formatter.field("ident", Lite(&self.value.ident)); + if let Some(val) = &self.value.rename { + #[derive(RefCast)] + #[repr(transparent)] + struct Print((syn::token::As, proc_macro2::Ident)); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0.1), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("rename", Print::ref_cast(val)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::ItemFn> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ItemFn"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("vis", Lite(&self.value.vis)); + formatter.field("sig", Lite(&self.value.sig)); + formatter.field("block", Lite(&self.value.block)); + formatter.finish() + } +} +impl Debug for Lite<syn::ItemForeignMod> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ItemForeignMod"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + if self.value.unsafety.is_some() { + formatter.field("unsafety", &Present); + } + formatter.field("abi", Lite(&self.value.abi)); + if !self.value.items.is_empty() { + formatter.field("items", Lite(&self.value.items)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::ItemImpl> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ItemImpl"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + if self.value.defaultness.is_some() { + formatter.field("defaultness", &Present); + } + if self.value.unsafety.is_some() { + formatter.field("unsafety", &Present); + } + formatter.field("generics", Lite(&self.value.generics)); + if let Some(val) = &self.value.trait_ { + #[derive(RefCast)] + #[repr(transparent)] + struct Print((Option<syn::token::Not>, syn::Path, syn::token::For)); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt( + &( + &super::Option { + present: self.0.0.is_some(), + }, + Lite(&self.0.1), + ), + formatter, + )?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("trait_", Print::ref_cast(val)); + } + formatter.field("self_ty", Lite(&self.value.self_ty)); + if !self.value.items.is_empty() { + formatter.field("items", Lite(&self.value.items)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::ItemMacro> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ItemMacro"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + if let Some(val) = &self.value.ident { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(proc_macro2::Ident); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("ident", Print::ref_cast(val)); + } + formatter.field("mac", Lite(&self.value.mac)); + if self.value.semi_token.is_some() { + formatter.field("semi_token", &Present); + } + formatter.finish() + } +} +impl Debug for Lite<syn::ItemMod> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ItemMod"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("vis", Lite(&self.value.vis)); + if self.value.unsafety.is_some() { + formatter.field("unsafety", &Present); + } + formatter.field("ident", Lite(&self.value.ident)); + if let Some(val) = &self.value.content { + #[derive(RefCast)] + #[repr(transparent)] + struct Print((syn::token::Brace, Vec<syn::Item>)); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0.1), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("content", Print::ref_cast(val)); + } + if self.value.semi.is_some() { + formatter.field("semi", &Present); + } + formatter.finish() + } +} +impl Debug for Lite<syn::ItemStatic> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ItemStatic"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("vis", Lite(&self.value.vis)); + match self.value.mutability { + syn::StaticMutability::None => {} + _ => { + formatter.field("mutability", Lite(&self.value.mutability)); + } + } + formatter.field("ident", Lite(&self.value.ident)); + formatter.field("ty", Lite(&self.value.ty)); + formatter.field("expr", Lite(&self.value.expr)); + formatter.finish() + } +} +impl Debug for Lite<syn::ItemStruct> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ItemStruct"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("vis", Lite(&self.value.vis)); + formatter.field("ident", Lite(&self.value.ident)); + formatter.field("generics", Lite(&self.value.generics)); + formatter.field("fields", Lite(&self.value.fields)); + if self.value.semi_token.is_some() { + formatter.field("semi_token", &Present); + } + formatter.finish() + } +} +impl Debug for Lite<syn::ItemTrait> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ItemTrait"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("vis", Lite(&self.value.vis)); + if self.value.unsafety.is_some() { + formatter.field("unsafety", &Present); + } + if self.value.auto_token.is_some() { + formatter.field("auto_token", &Present); + } + if let Some(val) = &self.value.restriction { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::ImplRestriction); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("restriction", Print::ref_cast(val)); + } + formatter.field("ident", Lite(&self.value.ident)); + formatter.field("generics", Lite(&self.value.generics)); + if self.value.colon_token.is_some() { + formatter.field("colon_token", &Present); + } + if !self.value.supertraits.is_empty() { + formatter.field("supertraits", Lite(&self.value.supertraits)); + } + if !self.value.items.is_empty() { + formatter.field("items", Lite(&self.value.items)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::ItemTraitAlias> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ItemTraitAlias"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("vis", Lite(&self.value.vis)); + formatter.field("ident", Lite(&self.value.ident)); + formatter.field("generics", Lite(&self.value.generics)); + if !self.value.bounds.is_empty() { + formatter.field("bounds", Lite(&self.value.bounds)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::ItemType> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ItemType"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("vis", Lite(&self.value.vis)); + formatter.field("ident", Lite(&self.value.ident)); + formatter.field("generics", Lite(&self.value.generics)); + formatter.field("ty", Lite(&self.value.ty)); + formatter.finish() + } +} +impl Debug for Lite<syn::ItemUnion> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ItemUnion"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("vis", Lite(&self.value.vis)); + formatter.field("ident", Lite(&self.value.ident)); + formatter.field("generics", Lite(&self.value.generics)); + formatter.field("fields", Lite(&self.value.fields)); + formatter.finish() + } +} +impl Debug for Lite<syn::ItemUse> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ItemUse"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("vis", Lite(&self.value.vis)); + if self.value.leading_colon.is_some() { + formatter.field("leading_colon", &Present); + } + formatter.field("tree", Lite(&self.value.tree)); + formatter.finish() + } +} +impl Debug for Lite<syn::Label> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("Label"); + formatter.field("name", Lite(&self.value.name)); + formatter.finish() + } +} +impl Debug for Lite<syn::Lifetime> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("Lifetime"); + formatter.field("ident", Lite(&self.value.ident)); + formatter.finish() + } +} +impl Debug for Lite<syn::LifetimeParam> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("LifetimeParam"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("lifetime", Lite(&self.value.lifetime)); + if self.value.colon_token.is_some() { + formatter.field("colon_token", &Present); + } + if !self.value.bounds.is_empty() { + formatter.field("bounds", Lite(&self.value.bounds)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::Lit> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + match &self.value { + syn::Lit::Str(_val) => write!(formatter, "{:?}", _val.value()), + syn::Lit::ByteStr(_val) => write!(formatter, "{:?}", _val.value()), + syn::Lit::CStr(_val) => write!(formatter, "{:?}", _val.value()), + syn::Lit::Byte(_val) => write!(formatter, "{:?}", _val.value()), + syn::Lit::Char(_val) => write!(formatter, "{:?}", _val.value()), + syn::Lit::Int(_val) => write!(formatter, "{}", _val), + syn::Lit::Float(_val) => write!(formatter, "{}", _val), + syn::Lit::Bool(_val) => { + let mut formatter = formatter.debug_struct("Lit::Bool"); + formatter.field("value", Lite(&_val.value)); + formatter.finish() + } + syn::Lit::Verbatim(_val) => { + formatter.write_str("Lit::Verbatim")?; + formatter.write_str("(`")?; + Display::fmt(_val, formatter)?; + formatter.write_str("`)")?; + Ok(()) + } + _ => unreachable!(), + } + } +} +impl Debug for Lite<syn::LitBool> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("LitBool"); + formatter.field("value", Lite(&self.value.value)); + formatter.finish() + } +} +impl Debug for Lite<syn::LitByte> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + write!(formatter, "{:?}", self.value.value()) + } +} +impl Debug for Lite<syn::LitByteStr> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + write!(formatter, "{:?}", self.value.value()) + } +} +impl Debug for Lite<syn::LitCStr> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + write!(formatter, "{:?}", self.value.value()) + } +} +impl Debug for Lite<syn::LitChar> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + write!(formatter, "{:?}", self.value.value()) + } +} +impl Debug for Lite<syn::LitFloat> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + write!(formatter, "{}", & self.value) + } +} +impl Debug for Lite<syn::LitInt> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + write!(formatter, "{}", & self.value) + } +} +impl Debug for Lite<syn::LitStr> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + write!(formatter, "{:?}", self.value.value()) + } +} +impl Debug for Lite<syn::Local> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("Local"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("pat", Lite(&self.value.pat)); + if let Some(val) = &self.value.init { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::LocalInit); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("init", Print::ref_cast(val)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::LocalInit> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("LocalInit"); + formatter.field("expr", Lite(&self.value.expr)); + if let Some(val) = &self.value.diverge { + #[derive(RefCast)] + #[repr(transparent)] + struct Print((syn::token::Else, Box<syn::Expr>)); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0.1), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("diverge", Print::ref_cast(val)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::Macro> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("Macro"); + formatter.field("path", Lite(&self.value.path)); + formatter.field("delimiter", Lite(&self.value.delimiter)); + formatter.field("tokens", Lite(&self.value.tokens)); + formatter.finish() + } +} +impl Debug for Lite<syn::MacroDelimiter> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + match &self.value { + syn::MacroDelimiter::Paren(_val) => { + formatter.write_str("MacroDelimiter::Paren")?; + Ok(()) + } + syn::MacroDelimiter::Brace(_val) => { + formatter.write_str("MacroDelimiter::Brace")?; + Ok(()) + } + syn::MacroDelimiter::Bracket(_val) => { + formatter.write_str("MacroDelimiter::Bracket")?; + Ok(()) + } + } + } +} +impl Debug for Lite<syn::Member> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + match &self.value { + syn::Member::Named(_val) => { + formatter.write_str("Member::Named")?; + formatter.write_str("(")?; + Debug::fmt(Lite(_val), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + syn::Member::Unnamed(_val) => { + formatter.write_str("Member::Unnamed")?; + formatter.write_str("(")?; + Debug::fmt(Lite(_val), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + } +} +impl Debug for Lite<syn::Meta> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + match &self.value { + syn::Meta::Path(_val) => { + let mut formatter = formatter.debug_struct("Meta::Path"); + if _val.leading_colon.is_some() { + formatter.field("leading_colon", &Present); + } + if !_val.segments.is_empty() { + formatter.field("segments", Lite(&_val.segments)); + } + formatter.finish() + } + syn::Meta::List(_val) => { + let mut formatter = formatter.debug_struct("Meta::List"); + formatter.field("path", Lite(&_val.path)); + formatter.field("delimiter", Lite(&_val.delimiter)); + formatter.field("tokens", Lite(&_val.tokens)); + formatter.finish() + } + syn::Meta::NameValue(_val) => { + let mut formatter = formatter.debug_struct("Meta::NameValue"); + formatter.field("path", Lite(&_val.path)); + formatter.field("value", Lite(&_val.value)); + formatter.finish() + } + } + } +} +impl Debug for Lite<syn::MetaList> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("MetaList"); + formatter.field("path", Lite(&self.value.path)); + formatter.field("delimiter", Lite(&self.value.delimiter)); + formatter.field("tokens", Lite(&self.value.tokens)); + formatter.finish() + } +} +impl Debug for Lite<syn::MetaNameValue> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("MetaNameValue"); + formatter.field("path", Lite(&self.value.path)); + formatter.field("value", Lite(&self.value.value)); + formatter.finish() + } +} +impl Debug for Lite<syn::ParenthesizedGenericArguments> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("ParenthesizedGenericArguments"); + if !self.value.inputs.is_empty() { + formatter.field("inputs", Lite(&self.value.inputs)); + } + formatter.field("output", Lite(&self.value.output)); + formatter.finish() + } +} +impl Debug for Lite<syn::Pat> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + match &self.value { + syn::Pat::Const(_val) => { + formatter.write_str("Pat::Const")?; + formatter.write_str("(")?; + Debug::fmt(Lite(_val), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + syn::Pat::Ident(_val) => { + let mut formatter = formatter.debug_struct("Pat::Ident"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + if _val.by_ref.is_some() { + formatter.field("by_ref", &Present); + } + if _val.mutability.is_some() { + formatter.field("mutability", &Present); + } + formatter.field("ident", Lite(&_val.ident)); + if let Some(val) = &_val.subpat { + #[derive(RefCast)] + #[repr(transparent)] + struct Print((syn::token::At, Box<syn::Pat>)); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0.1), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("subpat", Print::ref_cast(val)); + } + formatter.finish() + } + syn::Pat::Lit(_val) => { + formatter.write_str("Pat::Lit")?; + formatter.write_str("(")?; + Debug::fmt(Lite(_val), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + syn::Pat::Macro(_val) => { + formatter.write_str("Pat::Macro")?; + formatter.write_str("(")?; + Debug::fmt(Lite(_val), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + syn::Pat::Or(_val) => { + let mut formatter = formatter.debug_struct("Pat::Or"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + if _val.leading_vert.is_some() { + formatter.field("leading_vert", &Present); + } + if !_val.cases.is_empty() { + formatter.field("cases", Lite(&_val.cases)); + } + formatter.finish() + } + syn::Pat::Paren(_val) => { + let mut formatter = formatter.debug_struct("Pat::Paren"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("pat", Lite(&_val.pat)); + formatter.finish() + } + syn::Pat::Path(_val) => { + formatter.write_str("Pat::Path")?; + formatter.write_str("(")?; + Debug::fmt(Lite(_val), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + syn::Pat::Range(_val) => { + formatter.write_str("Pat::Range")?; + formatter.write_str("(")?; + Debug::fmt(Lite(_val), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + syn::Pat::Reference(_val) => { + let mut formatter = formatter.debug_struct("Pat::Reference"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + if _val.mutability.is_some() { + formatter.field("mutability", &Present); + } + formatter.field("pat", Lite(&_val.pat)); + formatter.finish() + } + syn::Pat::Rest(_val) => { + let mut formatter = formatter.debug_struct("Pat::Rest"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.finish() + } + syn::Pat::Slice(_val) => { + let mut formatter = formatter.debug_struct("Pat::Slice"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + if !_val.elems.is_empty() { + formatter.field("elems", Lite(&_val.elems)); + } + formatter.finish() + } + syn::Pat::Struct(_val) => { + let mut formatter = formatter.debug_struct("Pat::Struct"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + if let Some(val) = &_val.qself { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::QSelf); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("qself", Print::ref_cast(val)); + } + formatter.field("path", Lite(&_val.path)); + if !_val.fields.is_empty() { + formatter.field("fields", Lite(&_val.fields)); + } + if let Some(val) = &_val.rest { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::PatRest); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("rest", Print::ref_cast(val)); + } + formatter.finish() + } + syn::Pat::Tuple(_val) => { + let mut formatter = formatter.debug_struct("Pat::Tuple"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + if !_val.elems.is_empty() { + formatter.field("elems", Lite(&_val.elems)); + } + formatter.finish() + } + syn::Pat::TupleStruct(_val) => { + let mut formatter = formatter.debug_struct("Pat::TupleStruct"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + if let Some(val) = &_val.qself { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::QSelf); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("qself", Print::ref_cast(val)); + } + formatter.field("path", Lite(&_val.path)); + if !_val.elems.is_empty() { + formatter.field("elems", Lite(&_val.elems)); + } + formatter.finish() + } + syn::Pat::Type(_val) => { + let mut formatter = formatter.debug_struct("Pat::Type"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("pat", Lite(&_val.pat)); + formatter.field("ty", Lite(&_val.ty)); + formatter.finish() + } + syn::Pat::Verbatim(_val) => { + formatter.write_str("Pat::Verbatim")?; + formatter.write_str("(`")?; + Display::fmt(_val, formatter)?; + formatter.write_str("`)")?; + Ok(()) + } + syn::Pat::Wild(_val) => { + let mut formatter = formatter.debug_struct("Pat::Wild"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.finish() + } + _ => unreachable!(), + } + } +} +impl Debug for Lite<syn::PatIdent> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("PatIdent"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + if self.value.by_ref.is_some() { + formatter.field("by_ref", &Present); + } + if self.value.mutability.is_some() { + formatter.field("mutability", &Present); + } + formatter.field("ident", Lite(&self.value.ident)); + if let Some(val) = &self.value.subpat { + #[derive(RefCast)] + #[repr(transparent)] + struct Print((syn::token::At, Box<syn::Pat>)); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0.1), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("subpat", Print::ref_cast(val)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::PatOr> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("PatOr"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + if self.value.leading_vert.is_some() { + formatter.field("leading_vert", &Present); + } + if !self.value.cases.is_empty() { + formatter.field("cases", Lite(&self.value.cases)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::PatParen> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("PatParen"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("pat", Lite(&self.value.pat)); + formatter.finish() + } +} +impl Debug for Lite<syn::PatReference> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("PatReference"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + if self.value.mutability.is_some() { + formatter.field("mutability", &Present); + } + formatter.field("pat", Lite(&self.value.pat)); + formatter.finish() + } +} +impl Debug for Lite<syn::PatRest> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("PatRest"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::PatSlice> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("PatSlice"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + if !self.value.elems.is_empty() { + formatter.field("elems", Lite(&self.value.elems)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::PatStruct> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("PatStruct"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + if let Some(val) = &self.value.qself { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::QSelf); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("qself", Print::ref_cast(val)); + } + formatter.field("path", Lite(&self.value.path)); + if !self.value.fields.is_empty() { + formatter.field("fields", Lite(&self.value.fields)); + } + if let Some(val) = &self.value.rest { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::PatRest); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("rest", Print::ref_cast(val)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::PatTuple> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("PatTuple"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + if !self.value.elems.is_empty() { + formatter.field("elems", Lite(&self.value.elems)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::PatTupleStruct> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("PatTupleStruct"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + if let Some(val) = &self.value.qself { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::QSelf); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("qself", Print::ref_cast(val)); + } + formatter.field("path", Lite(&self.value.path)); + if !self.value.elems.is_empty() { + formatter.field("elems", Lite(&self.value.elems)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::PatType> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("PatType"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("pat", Lite(&self.value.pat)); + formatter.field("ty", Lite(&self.value.ty)); + formatter.finish() + } +} +impl Debug for Lite<syn::PatWild> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("PatWild"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::Path> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("Path"); + if self.value.leading_colon.is_some() { + formatter.field("leading_colon", &Present); + } + if !self.value.segments.is_empty() { + formatter.field("segments", Lite(&self.value.segments)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::PathArguments> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + match &self.value { + syn::PathArguments::None => formatter.write_str("PathArguments::None"), + syn::PathArguments::AngleBracketed(_val) => { + let mut formatter = formatter + .debug_struct("PathArguments::AngleBracketed"); + if _val.colon2_token.is_some() { + formatter.field("colon2_token", &Present); + } + if !_val.args.is_empty() { + formatter.field("args", Lite(&_val.args)); + } + formatter.finish() + } + syn::PathArguments::Parenthesized(_val) => { + let mut formatter = formatter + .debug_struct("PathArguments::Parenthesized"); + if !_val.inputs.is_empty() { + formatter.field("inputs", Lite(&_val.inputs)); + } + formatter.field("output", Lite(&_val.output)); + formatter.finish() + } + } + } +} +impl Debug for Lite<syn::PathSegment> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("PathSegment"); + formatter.field("ident", Lite(&self.value.ident)); + match self.value.arguments { + syn::PathArguments::None => {} + _ => { + formatter.field("arguments", Lite(&self.value.arguments)); + } + } + formatter.finish() + } +} +impl Debug for Lite<syn::PointerMutability> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + match &self.value { + syn::PointerMutability::Const(_val) => { + formatter.write_str("PointerMutability::Const")?; + Ok(()) + } + syn::PointerMutability::Mut(_val) => { + formatter.write_str("PointerMutability::Mut")?; + Ok(()) + } + } + } +} +impl Debug for Lite<syn::PreciseCapture> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("PreciseCapture"); + if !self.value.params.is_empty() { + formatter.field("params", Lite(&self.value.params)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::PredicateLifetime> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("PredicateLifetime"); + formatter.field("lifetime", Lite(&self.value.lifetime)); + if !self.value.bounds.is_empty() { + formatter.field("bounds", Lite(&self.value.bounds)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::PredicateType> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("PredicateType"); + if let Some(val) = &self.value.lifetimes { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::BoundLifetimes); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("lifetimes", Print::ref_cast(val)); + } + formatter.field("bounded_ty", Lite(&self.value.bounded_ty)); + if !self.value.bounds.is_empty() { + formatter.field("bounds", Lite(&self.value.bounds)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::QSelf> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("QSelf"); + formatter.field("ty", Lite(&self.value.ty)); + formatter.field("position", Lite(&self.value.position)); + if self.value.as_token.is_some() { + formatter.field("as_token", &Present); + } + formatter.finish() + } +} +impl Debug for Lite<syn::RangeLimits> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + match &self.value { + syn::RangeLimits::HalfOpen(_val) => { + formatter.write_str("RangeLimits::HalfOpen")?; + Ok(()) + } + syn::RangeLimits::Closed(_val) => { + formatter.write_str("RangeLimits::Closed")?; + Ok(()) + } + } + } +} +impl Debug for Lite<syn::Receiver> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("Receiver"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + if let Some(val) = &self.value.reference { + #[derive(RefCast)] + #[repr(transparent)] + struct Print((syn::token::And, Option<syn::Lifetime>)); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt( + { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(Option<syn::Lifetime>); + impl Debug for Print { + fn fmt( + &self, + formatter: &mut fmt::Formatter, + ) -> fmt::Result { + match &self.0 { + Some(_val) => { + formatter.write_str("Some(")?; + Debug::fmt(Lite(_val), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + None => formatter.write_str("None"), + } + } + } + Print::ref_cast(&self.0.1) + }, + formatter, + )?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("reference", Print::ref_cast(val)); + } + if self.value.mutability.is_some() { + formatter.field("mutability", &Present); + } + if self.value.colon_token.is_some() { + formatter.field("colon_token", &Present); + } + formatter.field("ty", Lite(&self.value.ty)); + formatter.finish() + } +} +impl Debug for Lite<syn::ReturnType> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + match &self.value { + syn::ReturnType::Default => formatter.write_str("ReturnType::Default"), + syn::ReturnType::Type(_v0, _v1) => { + let mut formatter = formatter.debug_tuple("ReturnType::Type"); + formatter.field(Lite(_v1)); + formatter.finish() + } + } + } +} +impl Debug for Lite<syn::Signature> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("Signature"); + if self.value.constness.is_some() { + formatter.field("constness", &Present); + } + if self.value.asyncness.is_some() { + formatter.field("asyncness", &Present); + } + if self.value.unsafety.is_some() { + formatter.field("unsafety", &Present); + } + if let Some(val) = &self.value.abi { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::Abi); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("abi", Print::ref_cast(val)); + } + formatter.field("ident", Lite(&self.value.ident)); + formatter.field("generics", Lite(&self.value.generics)); + if !self.value.inputs.is_empty() { + formatter.field("inputs", Lite(&self.value.inputs)); + } + if let Some(val) = &self.value.variadic { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::Variadic); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("variadic", Print::ref_cast(val)); + } + formatter.field("output", Lite(&self.value.output)); + formatter.finish() + } +} +impl Debug for Lite<syn::StaticMutability> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + match &self.value { + syn::StaticMutability::Mut(_val) => { + formatter.write_str("StaticMutability::Mut")?; + Ok(()) + } + syn::StaticMutability::None => formatter.write_str("StaticMutability::None"), + _ => unreachable!(), + } + } +} +impl Debug for Lite<syn::Stmt> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + match &self.value { + syn::Stmt::Local(_val) => { + let mut formatter = formatter.debug_struct("Stmt::Local"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("pat", Lite(&_val.pat)); + if let Some(val) = &_val.init { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::LocalInit); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("init", Print::ref_cast(val)); + } + formatter.finish() + } + syn::Stmt::Item(_val) => { + formatter.write_str("Stmt::Item")?; + formatter.write_str("(")?; + Debug::fmt(Lite(_val), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + syn::Stmt::Expr(_v0, _v1) => { + let mut formatter = formatter.debug_tuple("Stmt::Expr"); + formatter.field(Lite(_v0)); + formatter + .field( + &super::Option { + present: _v1.is_some(), + }, + ); + formatter.finish() + } + syn::Stmt::Macro(_val) => { + let mut formatter = formatter.debug_struct("Stmt::Macro"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("mac", Lite(&_val.mac)); + if _val.semi_token.is_some() { + formatter.field("semi_token", &Present); + } + formatter.finish() + } + } + } +} +impl Debug for Lite<syn::StmtMacro> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("StmtMacro"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("mac", Lite(&self.value.mac)); + if self.value.semi_token.is_some() { + formatter.field("semi_token", &Present); + } + formatter.finish() + } +} +impl Debug for Lite<syn::TraitBound> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("TraitBound"); + if self.value.paren_token.is_some() { + formatter.field("paren_token", &Present); + } + match self.value.modifier { + syn::TraitBoundModifier::None => {} + _ => { + formatter.field("modifier", Lite(&self.value.modifier)); + } + } + if let Some(val) = &self.value.lifetimes { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::BoundLifetimes); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("lifetimes", Print::ref_cast(val)); + } + formatter.field("path", Lite(&self.value.path)); + formatter.finish() + } +} +impl Debug for Lite<syn::TraitBoundModifier> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + match &self.value { + syn::TraitBoundModifier::None => { + formatter.write_str("TraitBoundModifier::None") + } + syn::TraitBoundModifier::Maybe(_val) => { + formatter.write_str("TraitBoundModifier::Maybe")?; + Ok(()) + } + } + } +} +impl Debug for Lite<syn::TraitItem> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + match &self.value { + syn::TraitItem::Const(_val) => { + let mut formatter = formatter.debug_struct("TraitItem::Const"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("ident", Lite(&_val.ident)); + formatter.field("generics", Lite(&_val.generics)); + formatter.field("ty", Lite(&_val.ty)); + if let Some(val) = &_val.default { + #[derive(RefCast)] + #[repr(transparent)] + struct Print((syn::token::Eq, syn::Expr)); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0.1), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("default", Print::ref_cast(val)); + } + formatter.finish() + } + syn::TraitItem::Fn(_val) => { + let mut formatter = formatter.debug_struct("TraitItem::Fn"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("sig", Lite(&_val.sig)); + if let Some(val) = &_val.default { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::Block); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("default", Print::ref_cast(val)); + } + if _val.semi_token.is_some() { + formatter.field("semi_token", &Present); + } + formatter.finish() + } + syn::TraitItem::Type(_val) => { + let mut formatter = formatter.debug_struct("TraitItem::Type"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("ident", Lite(&_val.ident)); + formatter.field("generics", Lite(&_val.generics)); + if _val.colon_token.is_some() { + formatter.field("colon_token", &Present); + } + if !_val.bounds.is_empty() { + formatter.field("bounds", Lite(&_val.bounds)); + } + if let Some(val) = &_val.default { + #[derive(RefCast)] + #[repr(transparent)] + struct Print((syn::token::Eq, syn::Type)); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0.1), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("default", Print::ref_cast(val)); + } + formatter.finish() + } + syn::TraitItem::Macro(_val) => { + let mut formatter = formatter.debug_struct("TraitItem::Macro"); + if !_val.attrs.is_empty() { + formatter.field("attrs", Lite(&_val.attrs)); + } + formatter.field("mac", Lite(&_val.mac)); + if _val.semi_token.is_some() { + formatter.field("semi_token", &Present); + } + formatter.finish() + } + syn::TraitItem::Verbatim(_val) => { + formatter.write_str("TraitItem::Verbatim")?; + formatter.write_str("(`")?; + Display::fmt(_val, formatter)?; + formatter.write_str("`)")?; + Ok(()) + } + _ => unreachable!(), + } + } +} +impl Debug for Lite<syn::TraitItemConst> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("TraitItemConst"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("ident", Lite(&self.value.ident)); + formatter.field("generics", Lite(&self.value.generics)); + formatter.field("ty", Lite(&self.value.ty)); + if let Some(val) = &self.value.default { + #[derive(RefCast)] + #[repr(transparent)] + struct Print((syn::token::Eq, syn::Expr)); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0.1), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("default", Print::ref_cast(val)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::TraitItemFn> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("TraitItemFn"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("sig", Lite(&self.value.sig)); + if let Some(val) = &self.value.default { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::Block); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("default", Print::ref_cast(val)); + } + if self.value.semi_token.is_some() { + formatter.field("semi_token", &Present); + } + formatter.finish() + } +} +impl Debug for Lite<syn::TraitItemMacro> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("TraitItemMacro"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("mac", Lite(&self.value.mac)); + if self.value.semi_token.is_some() { + formatter.field("semi_token", &Present); + } + formatter.finish() + } +} +impl Debug for Lite<syn::TraitItemType> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("TraitItemType"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("ident", Lite(&self.value.ident)); + formatter.field("generics", Lite(&self.value.generics)); + if self.value.colon_token.is_some() { + formatter.field("colon_token", &Present); + } + if !self.value.bounds.is_empty() { + formatter.field("bounds", Lite(&self.value.bounds)); + } + if let Some(val) = &self.value.default { + #[derive(RefCast)] + #[repr(transparent)] + struct Print((syn::token::Eq, syn::Type)); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0.1), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("default", Print::ref_cast(val)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::Type> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + match &self.value { + syn::Type::Array(_val) => { + let mut formatter = formatter.debug_struct("Type::Array"); + formatter.field("elem", Lite(&_val.elem)); + formatter.field("len", Lite(&_val.len)); + formatter.finish() + } + syn::Type::BareFn(_val) => { + let mut formatter = formatter.debug_struct("Type::BareFn"); + if let Some(val) = &_val.lifetimes { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::BoundLifetimes); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("lifetimes", Print::ref_cast(val)); + } + if _val.unsafety.is_some() { + formatter.field("unsafety", &Present); + } + if let Some(val) = &_val.abi { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::Abi); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("abi", Print::ref_cast(val)); + } + if !_val.inputs.is_empty() { + formatter.field("inputs", Lite(&_val.inputs)); + } + if let Some(val) = &_val.variadic { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::BareVariadic); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("variadic", Print::ref_cast(val)); + } + formatter.field("output", Lite(&_val.output)); + formatter.finish() + } + syn::Type::Group(_val) => { + let mut formatter = formatter.debug_struct("Type::Group"); + formatter.field("elem", Lite(&_val.elem)); + formatter.finish() + } + syn::Type::ImplTrait(_val) => { + let mut formatter = formatter.debug_struct("Type::ImplTrait"); + if !_val.bounds.is_empty() { + formatter.field("bounds", Lite(&_val.bounds)); + } + formatter.finish() + } + syn::Type::Infer(_val) => { + let mut formatter = formatter.debug_struct("Type::Infer"); + formatter.finish() + } + syn::Type::Macro(_val) => { + let mut formatter = formatter.debug_struct("Type::Macro"); + formatter.field("mac", Lite(&_val.mac)); + formatter.finish() + } + syn::Type::Never(_val) => { + let mut formatter = formatter.debug_struct("Type::Never"); + formatter.finish() + } + syn::Type::Paren(_val) => { + let mut formatter = formatter.debug_struct("Type::Paren"); + formatter.field("elem", Lite(&_val.elem)); + formatter.finish() + } + syn::Type::Path(_val) => { + let mut formatter = formatter.debug_struct("Type::Path"); + if let Some(val) = &_val.qself { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::QSelf); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("qself", Print::ref_cast(val)); + } + formatter.field("path", Lite(&_val.path)); + formatter.finish() + } + syn::Type::Ptr(_val) => { + let mut formatter = formatter.debug_struct("Type::Ptr"); + if _val.const_token.is_some() { + formatter.field("const_token", &Present); + } + if _val.mutability.is_some() { + formatter.field("mutability", &Present); + } + formatter.field("elem", Lite(&_val.elem)); + formatter.finish() + } + syn::Type::Reference(_val) => { + let mut formatter = formatter.debug_struct("Type::Reference"); + if let Some(val) = &_val.lifetime { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::Lifetime); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("lifetime", Print::ref_cast(val)); + } + if _val.mutability.is_some() { + formatter.field("mutability", &Present); + } + formatter.field("elem", Lite(&_val.elem)); + formatter.finish() + } + syn::Type::Slice(_val) => { + let mut formatter = formatter.debug_struct("Type::Slice"); + formatter.field("elem", Lite(&_val.elem)); + formatter.finish() + } + syn::Type::TraitObject(_val) => { + let mut formatter = formatter.debug_struct("Type::TraitObject"); + if _val.dyn_token.is_some() { + formatter.field("dyn_token", &Present); + } + if !_val.bounds.is_empty() { + formatter.field("bounds", Lite(&_val.bounds)); + } + formatter.finish() + } + syn::Type::Tuple(_val) => { + let mut formatter = formatter.debug_struct("Type::Tuple"); + if !_val.elems.is_empty() { + formatter.field("elems", Lite(&_val.elems)); + } + formatter.finish() + } + syn::Type::Verbatim(_val) => { + formatter.write_str("Type::Verbatim")?; + formatter.write_str("(`")?; + Display::fmt(_val, formatter)?; + formatter.write_str("`)")?; + Ok(()) + } + _ => unreachable!(), + } + } +} +impl Debug for Lite<syn::TypeArray> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("TypeArray"); + formatter.field("elem", Lite(&self.value.elem)); + formatter.field("len", Lite(&self.value.len)); + formatter.finish() + } +} +impl Debug for Lite<syn::TypeBareFn> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("TypeBareFn"); + if let Some(val) = &self.value.lifetimes { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::BoundLifetimes); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("lifetimes", Print::ref_cast(val)); + } + if self.value.unsafety.is_some() { + formatter.field("unsafety", &Present); + } + if let Some(val) = &self.value.abi { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::Abi); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("abi", Print::ref_cast(val)); + } + if !self.value.inputs.is_empty() { + formatter.field("inputs", Lite(&self.value.inputs)); + } + if let Some(val) = &self.value.variadic { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::BareVariadic); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("variadic", Print::ref_cast(val)); + } + formatter.field("output", Lite(&self.value.output)); + formatter.finish() + } +} +impl Debug for Lite<syn::TypeGroup> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("TypeGroup"); + formatter.field("elem", Lite(&self.value.elem)); + formatter.finish() + } +} +impl Debug for Lite<syn::TypeImplTrait> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("TypeImplTrait"); + if !self.value.bounds.is_empty() { + formatter.field("bounds", Lite(&self.value.bounds)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::TypeInfer> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("TypeInfer"); + formatter.finish() + } +} +impl Debug for Lite<syn::TypeMacro> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("TypeMacro"); + formatter.field("mac", Lite(&self.value.mac)); + formatter.finish() + } +} +impl Debug for Lite<syn::TypeNever> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("TypeNever"); + formatter.finish() + } +} +impl Debug for Lite<syn::TypeParam> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("TypeParam"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("ident", Lite(&self.value.ident)); + if self.value.colon_token.is_some() { + formatter.field("colon_token", &Present); + } + if !self.value.bounds.is_empty() { + formatter.field("bounds", Lite(&self.value.bounds)); + } + if self.value.eq_token.is_some() { + formatter.field("eq_token", &Present); + } + if let Some(val) = &self.value.default { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::Type); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("default", Print::ref_cast(val)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::TypeParamBound> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + match &self.value { + syn::TypeParamBound::Trait(_val) => { + formatter.write_str("TypeParamBound::Trait")?; + formatter.write_str("(")?; + Debug::fmt(Lite(_val), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + syn::TypeParamBound::Lifetime(_val) => { + let mut formatter = formatter.debug_struct("TypeParamBound::Lifetime"); + formatter.field("ident", Lite(&_val.ident)); + formatter.finish() + } + syn::TypeParamBound::PreciseCapture(_val) => { + formatter.write_str("TypeParamBound::PreciseCapture")?; + formatter.write_str("(")?; + Debug::fmt(Lite(_val), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + syn::TypeParamBound::Verbatim(_val) => { + formatter.write_str("TypeParamBound::Verbatim")?; + formatter.write_str("(`")?; + Display::fmt(_val, formatter)?; + formatter.write_str("`)")?; + Ok(()) + } + _ => unreachable!(), + } + } +} +impl Debug for Lite<syn::TypeParen> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("TypeParen"); + formatter.field("elem", Lite(&self.value.elem)); + formatter.finish() + } +} +impl Debug for Lite<syn::TypePath> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("TypePath"); + if let Some(val) = &self.value.qself { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::QSelf); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("qself", Print::ref_cast(val)); + } + formatter.field("path", Lite(&self.value.path)); + formatter.finish() + } +} +impl Debug for Lite<syn::TypePtr> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("TypePtr"); + if self.value.const_token.is_some() { + formatter.field("const_token", &Present); + } + if self.value.mutability.is_some() { + formatter.field("mutability", &Present); + } + formatter.field("elem", Lite(&self.value.elem)); + formatter.finish() + } +} +impl Debug for Lite<syn::TypeReference> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("TypeReference"); + if let Some(val) = &self.value.lifetime { + #[derive(RefCast)] + #[repr(transparent)] + struct Print(syn::Lifetime); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("lifetime", Print::ref_cast(val)); + } + if self.value.mutability.is_some() { + formatter.field("mutability", &Present); + } + formatter.field("elem", Lite(&self.value.elem)); + formatter.finish() + } +} +impl Debug for Lite<syn::TypeSlice> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("TypeSlice"); + formatter.field("elem", Lite(&self.value.elem)); + formatter.finish() + } +} +impl Debug for Lite<syn::TypeTraitObject> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("TypeTraitObject"); + if self.value.dyn_token.is_some() { + formatter.field("dyn_token", &Present); + } + if !self.value.bounds.is_empty() { + formatter.field("bounds", Lite(&self.value.bounds)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::TypeTuple> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("TypeTuple"); + if !self.value.elems.is_empty() { + formatter.field("elems", Lite(&self.value.elems)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::UnOp> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + match &self.value { + syn::UnOp::Deref(_val) => { + formatter.write_str("UnOp::Deref")?; + Ok(()) + } + syn::UnOp::Not(_val) => { + formatter.write_str("UnOp::Not")?; + Ok(()) + } + syn::UnOp::Neg(_val) => { + formatter.write_str("UnOp::Neg")?; + Ok(()) + } + _ => unreachable!(), + } + } +} +impl Debug for Lite<syn::UseGlob> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("UseGlob"); + formatter.finish() + } +} +impl Debug for Lite<syn::UseGroup> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("UseGroup"); + if !self.value.items.is_empty() { + formatter.field("items", Lite(&self.value.items)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::UseName> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("UseName"); + formatter.field("ident", Lite(&self.value.ident)); + formatter.finish() + } +} +impl Debug for Lite<syn::UsePath> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("UsePath"); + formatter.field("ident", Lite(&self.value.ident)); + formatter.field("tree", Lite(&self.value.tree)); + formatter.finish() + } +} +impl Debug for Lite<syn::UseRename> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("UseRename"); + formatter.field("ident", Lite(&self.value.ident)); + formatter.field("rename", Lite(&self.value.rename)); + formatter.finish() + } +} +impl Debug for Lite<syn::UseTree> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + match &self.value { + syn::UseTree::Path(_val) => { + formatter.write_str("UseTree::Path")?; + formatter.write_str("(")?; + Debug::fmt(Lite(_val), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + syn::UseTree::Name(_val) => { + formatter.write_str("UseTree::Name")?; + formatter.write_str("(")?; + Debug::fmt(Lite(_val), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + syn::UseTree::Rename(_val) => { + formatter.write_str("UseTree::Rename")?; + formatter.write_str("(")?; + Debug::fmt(Lite(_val), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + syn::UseTree::Glob(_val) => { + formatter.write_str("UseTree::Glob")?; + formatter.write_str("(")?; + Debug::fmt(Lite(_val), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + syn::UseTree::Group(_val) => { + formatter.write_str("UseTree::Group")?; + formatter.write_str("(")?; + Debug::fmt(Lite(_val), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + } +} +impl Debug for Lite<syn::Variadic> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("Variadic"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + if let Some(val) = &self.value.pat { + #[derive(RefCast)] + #[repr(transparent)] + struct Print((Box<syn::Pat>, syn::token::Colon)); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0.0), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("pat", Print::ref_cast(val)); + } + if self.value.comma.is_some() { + formatter.field("comma", &Present); + } + formatter.finish() + } +} +impl Debug for Lite<syn::Variant> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("Variant"); + if !self.value.attrs.is_empty() { + formatter.field("attrs", Lite(&self.value.attrs)); + } + formatter.field("ident", Lite(&self.value.ident)); + formatter.field("fields", Lite(&self.value.fields)); + if let Some(val) = &self.value.discriminant { + #[derive(RefCast)] + #[repr(transparent)] + struct Print((syn::token::Eq, syn::Expr)); + impl Debug for Print { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some(")?; + Debug::fmt(Lite(&self.0.1), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + } + formatter.field("discriminant", Print::ref_cast(val)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::VisRestricted> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("VisRestricted"); + if self.value.in_token.is_some() { + formatter.field("in_token", &Present); + } + formatter.field("path", Lite(&self.value.path)); + formatter.finish() + } +} +impl Debug for Lite<syn::Visibility> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + match &self.value { + syn::Visibility::Public(_val) => { + formatter.write_str("Visibility::Public")?; + Ok(()) + } + syn::Visibility::Restricted(_val) => { + let mut formatter = formatter.debug_struct("Visibility::Restricted"); + if _val.in_token.is_some() { + formatter.field("in_token", &Present); + } + formatter.field("path", Lite(&_val.path)); + formatter.finish() + } + syn::Visibility::Inherited => formatter.write_str("Visibility::Inherited"), + } + } +} +impl Debug for Lite<syn::WhereClause> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut formatter = formatter.debug_struct("WhereClause"); + if !self.value.predicates.is_empty() { + formatter.field("predicates", Lite(&self.value.predicates)); + } + formatter.finish() + } +} +impl Debug for Lite<syn::WherePredicate> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + match &self.value { + syn::WherePredicate::Lifetime(_val) => { + formatter.write_str("WherePredicate::Lifetime")?; + formatter.write_str("(")?; + Debug::fmt(Lite(_val), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + syn::WherePredicate::Type(_val) => { + formatter.write_str("WherePredicate::Type")?; + formatter.write_str("(")?; + Debug::fmt(Lite(_val), formatter)?; + formatter.write_str(")")?; + Ok(()) + } + _ => unreachable!(), + } + } +} +impl Debug for Lite<syn::token::Abstract> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![abstract]") + } +} +impl Debug for Lite<syn::token::And> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![&]") + } +} +impl Debug for Lite<syn::token::AndAnd> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![&&]") + } +} +impl Debug for Lite<syn::token::AndEq> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![&=]") + } +} +impl Debug for Lite<syn::token::As> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![as]") + } +} +impl Debug for Lite<syn::token::Async> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![async]") + } +} +impl Debug for Lite<syn::token::At> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![@]") + } +} +impl Debug for Lite<syn::token::Auto> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![auto]") + } +} +impl Debug for Lite<syn::token::Await> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![await]") + } +} +impl Debug for Lite<syn::token::Become> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![become]") + } +} +impl Debug for Lite<syn::token::Box> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![box]") + } +} +impl Debug for Lite<syn::token::Break> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![break]") + } +} +impl Debug for Lite<syn::token::Caret> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![^]") + } +} +impl Debug for Lite<syn::token::CaretEq> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![^=]") + } +} +impl Debug for Lite<syn::token::Colon> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![:]") + } +} +impl Debug for Lite<syn::token::Comma> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![,]") + } +} +impl Debug for Lite<syn::token::Const> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![const]") + } +} +impl Debug for Lite<syn::token::Continue> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![continue]") + } +} +impl Debug for Lite<syn::token::Crate> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![crate]") + } +} +impl Debug for Lite<syn::token::Default> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![default]") + } +} +impl Debug for Lite<syn::token::Do> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![do]") + } +} +impl Debug for Lite<syn::token::Dollar> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![$]") + } +} +impl Debug for Lite<syn::token::Dot> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![.]") + } +} +impl Debug for Lite<syn::token::DotDot> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![..]") + } +} +impl Debug for Lite<syn::token::DotDotDot> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![...]") + } +} +impl Debug for Lite<syn::token::DotDotEq> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![..=]") + } +} +impl Debug for Lite<syn::token::Dyn> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![dyn]") + } +} +impl Debug for Lite<syn::token::Else> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![else]") + } +} +impl Debug for Lite<syn::token::Enum> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![enum]") + } +} +impl Debug for Lite<syn::token::Eq> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![=]") + } +} +impl Debug for Lite<syn::token::EqEq> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![==]") + } +} +impl Debug for Lite<syn::token::Extern> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![extern]") + } +} +impl Debug for Lite<syn::token::FatArrow> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![=>]") + } +} +impl Debug for Lite<syn::token::Final> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![final]") + } +} +impl Debug for Lite<syn::token::Fn> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![fn]") + } +} +impl Debug for Lite<syn::token::For> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![for]") + } +} +impl Debug for Lite<syn::token::Ge> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![>=]") + } +} +impl Debug for Lite<syn::token::Gt> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![>]") + } +} +impl Debug for Lite<syn::token::If> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![if]") + } +} +impl Debug for Lite<syn::token::Impl> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![impl]") + } +} +impl Debug for Lite<syn::token::In> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![in]") + } +} +impl Debug for Lite<syn::token::LArrow> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![<-]") + } +} +impl Debug for Lite<syn::token::Le> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![<=]") + } +} +impl Debug for Lite<syn::token::Let> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![let]") + } +} +impl Debug for Lite<syn::token::Loop> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![loop]") + } +} +impl Debug for Lite<syn::token::Lt> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![<]") + } +} +impl Debug for Lite<syn::token::Macro> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![macro]") + } +} +impl Debug for Lite<syn::token::Match> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![match]") + } +} +impl Debug for Lite<syn::token::Minus> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![-]") + } +} +impl Debug for Lite<syn::token::MinusEq> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![-=]") + } +} +impl Debug for Lite<syn::token::Mod> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![mod]") + } +} +impl Debug for Lite<syn::token::Move> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![move]") + } +} +impl Debug for Lite<syn::token::Mut> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![mut]") + } +} +impl Debug for Lite<syn::token::Ne> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![!=]") + } +} +impl Debug for Lite<syn::token::Not> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![!]") + } +} +impl Debug for Lite<syn::token::Or> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![|]") + } +} +impl Debug for Lite<syn::token::OrEq> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![|=]") + } +} +impl Debug for Lite<syn::token::OrOr> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![||]") + } +} +impl Debug for Lite<syn::token::Override> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![override]") + } +} +impl Debug for Lite<syn::token::PathSep> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![::]") + } +} +impl Debug for Lite<syn::token::Percent> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![%]") + } +} +impl Debug for Lite<syn::token::PercentEq> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![%=]") + } +} +impl Debug for Lite<syn::token::Plus> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![+]") + } +} +impl Debug for Lite<syn::token::PlusEq> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![+=]") + } +} +impl Debug for Lite<syn::token::Pound> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![#]") + } +} +impl Debug for Lite<syn::token::Priv> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![priv]") + } +} +impl Debug for Lite<syn::token::Pub> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![pub]") + } +} +impl Debug for Lite<syn::token::Question> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![?]") + } +} +impl Debug for Lite<syn::token::RArrow> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![->]") + } +} +impl Debug for Lite<syn::token::Raw> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![raw]") + } +} +impl Debug for Lite<syn::token::Ref> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![ref]") + } +} +impl Debug for Lite<syn::token::Return> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![return]") + } +} +impl Debug for Lite<syn::token::SelfType> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![Self]") + } +} +impl Debug for Lite<syn::token::SelfValue> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![self]") + } +} +impl Debug for Lite<syn::token::Semi> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![;]") + } +} +impl Debug for Lite<syn::token::Shl> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![<<]") + } +} +impl Debug for Lite<syn::token::ShlEq> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![<<=]") + } +} +impl Debug for Lite<syn::token::Shr> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![>>]") + } +} +impl Debug for Lite<syn::token::ShrEq> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![>>=]") + } +} +impl Debug for Lite<syn::token::Slash> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![/]") + } +} +impl Debug for Lite<syn::token::SlashEq> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![/=]") + } +} +impl Debug for Lite<syn::token::Star> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![*]") + } +} +impl Debug for Lite<syn::token::StarEq> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![*=]") + } +} +impl Debug for Lite<syn::token::Static> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![static]") + } +} +impl Debug for Lite<syn::token::Struct> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![struct]") + } +} +impl Debug for Lite<syn::token::Super> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![super]") + } +} +impl Debug for Lite<syn::token::Tilde> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![~]") + } +} +impl Debug for Lite<syn::token::Trait> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![trait]") + } +} +impl Debug for Lite<syn::token::Try> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![try]") + } +} +impl Debug for Lite<syn::token::Type> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![type]") + } +} +impl Debug for Lite<syn::token::Typeof> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![typeof]") + } +} +impl Debug for Lite<syn::token::Underscore> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![_]") + } +} +impl Debug for Lite<syn::token::Union> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![union]") + } +} +impl Debug for Lite<syn::token::Unsafe> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![unsafe]") + } +} +impl Debug for Lite<syn::token::Unsized> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![unsized]") + } +} +impl Debug for Lite<syn::token::Use> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![use]") + } +} +impl Debug for Lite<syn::token::Virtual> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![virtual]") + } +} +impl Debug for Lite<syn::token::Where> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![where]") + } +} +impl Debug for Lite<syn::token::While> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![while]") + } +} +impl Debug for Lite<syn::token::Yield> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Token![yield]") + } +} diff --git a/vendor/syn/tests/debug/mod.rs b/vendor/syn/tests/debug/mod.rs new file mode 100644 index 00000000..7ab2b795 --- /dev/null +++ b/vendor/syn/tests/debug/mod.rs @@ -0,0 +1,147 @@ +#![allow( + clippy::no_effect_underscore_binding, + clippy::too_many_lines, + clippy::used_underscore_binding +)] + +#[rustfmt::skip] +mod gen; + +use proc_macro2::{Ident, Literal, TokenStream}; +use ref_cast::RefCast; +use std::fmt::{self, Debug}; +use std::ops::Deref; +use syn::punctuated::Punctuated; + +#[derive(RefCast)] +#[repr(transparent)] +pub struct Lite<T: ?Sized> { + value: T, +} + +#[allow(non_snake_case)] +pub fn Lite<T: ?Sized>(value: &T) -> &Lite<T> { + Lite::ref_cast(value) +} + +impl<T: ?Sized> Deref for Lite<T> { + type Target = T; + + fn deref(&self) -> &Self::Target { + &self.value + } +} + +impl Debug for Lite<bool> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + write!(formatter, "{}", self.value) + } +} + +impl Debug for Lite<u32> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + write!(formatter, "{}", self.value) + } +} + +impl Debug for Lite<usize> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + write!(formatter, "{}", self.value) + } +} + +impl Debug for Lite<String> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + write!(formatter, "{:?}", self.value) + } +} + +impl Debug for Lite<Ident> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + write!(formatter, "{:?}", self.value.to_string()) + } +} + +impl Debug for Lite<Literal> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + write!(formatter, "{}", self.value) + } +} + +impl Debug for Lite<TokenStream> { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let string = self.value.to_string(); + if string.len() <= 80 { + write!(formatter, "TokenStream(`{}`)", self.value) + } else { + formatter + .debug_tuple("TokenStream") + .field(&format_args!("`{}`", string)) + .finish() + } + } +} + +impl<T> Debug for Lite<&T> +where + Lite<T>: Debug, +{ + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + Debug::fmt(Lite(self.value), formatter) + } +} + +impl<T> Debug for Lite<Box<T>> +where + Lite<T>: Debug, +{ + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + Debug::fmt(Lite(&*self.value), formatter) + } +} + +impl<T> Debug for Lite<Vec<T>> +where + Lite<T>: Debug, +{ + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter + .debug_list() + .entries(self.value.iter().map(Lite)) + .finish() + } +} + +impl<T, P> Debug for Lite<Punctuated<T, P>> +where + Lite<T>: Debug, + Lite<P>: Debug, +{ + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + let mut list = formatter.debug_list(); + for pair in self.pairs() { + let (node, punct) = pair.into_tuple(); + list.entry(Lite(node)); + list.entries(punct.map(Lite)); + } + list.finish() + } +} + +struct Present; + +impl Debug for Present { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str("Some") + } +} + +struct Option { + present: bool, +} + +impl Debug for Option { + fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + formatter.write_str(if self.present { "Some" } else { "None" }) + } +} diff --git a/vendor/syn/tests/macros/mod.rs b/vendor/syn/tests/macros/mod.rs new file mode 100644 index 00000000..024075c0 --- /dev/null +++ b/vendor/syn/tests/macros/mod.rs @@ -0,0 +1,93 @@ +#![allow(unused_macros, unused_macro_rules)] + +#[path = "../debug/mod.rs"] +pub mod debug; + +use std::str::FromStr; +use syn::parse::Result; + +macro_rules! errorf { + ($($tt:tt)*) => {{ + use ::std::io::Write; + let stderr = ::std::io::stderr(); + write!(stderr.lock(), $($tt)*).unwrap(); + }}; +} + +macro_rules! punctuated { + ($($e:expr,)+) => {{ + let mut seq = ::syn::punctuated::Punctuated::new(); + $( + seq.push($e); + )+ + seq + }}; + + ($($e:expr),+) => { + punctuated!($($e,)+) + }; +} + +macro_rules! snapshot { + ($($args:tt)*) => { + snapshot_impl!(() $($args)*) + }; +} + +macro_rules! snapshot_impl { + (($expr:ident) as $t:ty, @$snapshot:literal) => { + let tokens = crate::macros::TryIntoTokens::try_into_tokens($expr).unwrap(); + let $expr: $t = syn::parse_quote!(#tokens); + let debug = crate::macros::debug::Lite(&$expr); + if !cfg!(miri) { + #[allow(clippy::needless_raw_string_hashes)] // https://github.com/mitsuhiko/insta/issues/389 + { + insta::assert_debug_snapshot!(debug, @$snapshot); + } + } + }; + (($($expr:tt)*) as $t:ty, @$snapshot:literal) => {{ + let tokens = crate::macros::TryIntoTokens::try_into_tokens($($expr)*).unwrap(); + let syntax_tree: $t = syn::parse_quote!(#tokens); + let debug = crate::macros::debug::Lite(&syntax_tree); + if !cfg!(miri) { + #[allow(clippy::needless_raw_string_hashes)] + { + insta::assert_debug_snapshot!(debug, @$snapshot); + } + } + syntax_tree + }}; + (($($expr:tt)*) , @$snapshot:literal) => {{ + let syntax_tree = $($expr)*; + let debug = crate::macros::debug::Lite(&syntax_tree); + if !cfg!(miri) { + #[allow(clippy::needless_raw_string_hashes)] + { + insta::assert_debug_snapshot!(debug, @$snapshot); + } + } + syntax_tree + }}; + (($($expr:tt)*) $next:tt $($rest:tt)*) => { + snapshot_impl!(($($expr)* $next) $($rest)*) + }; +} + +pub trait TryIntoTokens { + #[allow(dead_code)] + fn try_into_tokens(self) -> Result<proc_macro2::TokenStream>; +} + +impl TryIntoTokens for &str { + fn try_into_tokens(self) -> Result<proc_macro2::TokenStream> { + let tokens = proc_macro2::TokenStream::from_str(self)?; + Ok(tokens) + } +} + +impl TryIntoTokens for proc_macro2::TokenStream { + fn try_into_tokens(self) -> Result<proc_macro2::TokenStream> { + Ok(self) + } +} diff --git a/vendor/syn/tests/regression.rs b/vendor/syn/tests/regression.rs new file mode 100644 index 00000000..5c7fcddc --- /dev/null +++ b/vendor/syn/tests/regression.rs @@ -0,0 +1,5 @@ +#![allow(clippy::let_underscore_untyped, clippy::uninlined_format_args)] + +mod regression { + automod::dir!("tests/regression"); +} diff --git a/vendor/syn/tests/regression/issue1108.rs b/vendor/syn/tests/regression/issue1108.rs new file mode 100644 index 00000000..11a82ada --- /dev/null +++ b/vendor/syn/tests/regression/issue1108.rs @@ -0,0 +1,5 @@ +#[test] +fn issue1108() { + let data = "impl<x<>>::x for"; + let _ = syn::parse_file(data); +} diff --git a/vendor/syn/tests/regression/issue1235.rs b/vendor/syn/tests/regression/issue1235.rs new file mode 100644 index 00000000..88360306 --- /dev/null +++ b/vendor/syn/tests/regression/issue1235.rs @@ -0,0 +1,32 @@ +use proc_macro2::{Delimiter, Group}; +use quote::quote; + +#[test] +fn main() { + // Okay. Rustc allows top-level `static` with no value syntactically, but + // not semantically. Syn parses as Item::Verbatim. + let tokens = quote! { + pub static FOO: usize; + pub static BAR: usize; + }; + let file = syn::parse2::<syn::File>(tokens).unwrap(); + println!("{:#?}", file); + + // Okay. + let inner = Group::new( + Delimiter::None, + quote!(static FOO: usize = 0; pub static BAR: usize = 0), + ); + let tokens = quote!(pub #inner;); + let file = syn::parse2::<syn::File>(tokens).unwrap(); + println!("{:#?}", file); + + // Formerly parser crash. + let inner = Group::new( + Delimiter::None, + quote!(static FOO: usize; pub static BAR: usize), + ); + let tokens = quote!(pub #inner;); + let file = syn::parse2::<syn::File>(tokens).unwrap(); + println!("{:#?}", file); +} diff --git a/vendor/syn/tests/repo/mod.rs b/vendor/syn/tests/repo/mod.rs new file mode 100644 index 00000000..81b29e2a --- /dev/null +++ b/vendor/syn/tests/repo/mod.rs @@ -0,0 +1,560 @@ +#![allow(clippy::manual_assert)] + +mod progress; + +use self::progress::Progress; +use anyhow::Result; +use flate2::read::GzDecoder; +use rayon::iter::{IntoParallelRefIterator, ParallelIterator}; +use rayon::ThreadPoolBuilder; +use std::collections::BTreeSet; +use std::env; +use std::ffi::OsStr; +use std::fs; +use std::path::{Path, PathBuf}; +use tar::Archive; +use walkdir::{DirEntry, WalkDir}; + +const REVISION: &str = "0aeaa5eb22180fdf12a8489e63c4daa18da6f236"; + +#[rustfmt::skip] +static EXCLUDE_FILES: &[&str] = &[ + // TODO: non-lifetime binders: `where for<'a, T> &'a Struct<T>: Trait` + // https://github.com/dtolnay/syn/issues/1435 + "src/tools/rustfmt/tests/source/issue_5721.rs", + "src/tools/rustfmt/tests/source/non-lifetime-binders.rs", + "src/tools/rustfmt/tests/target/issue_5721.rs", + "src/tools/rustfmt/tests/target/non-lifetime-binders.rs", + "tests/rustdoc-json/non_lifetime_binders.rs", + "tests/rustdoc/inline_cross/auxiliary/non_lifetime_binders.rs", + "tests/rustdoc/non_lifetime_binders.rs", + + // TODO: unsafe binders: `unsafe<'a> &'a T` + // https://github.com/dtolnay/syn/issues/1791 + "src/tools/rustfmt/tests/source/unsafe-binders.rs", + "src/tools/rustfmt/tests/target/unsafe-binders.rs", + + // TODO: unsafe fields: `struct S { unsafe field: T }` + // https://github.com/dtolnay/syn/issues/1792 + "src/tools/rustfmt/tests/source/unsafe-field.rs", + "src/tools/rustfmt/tests/target/unsafe-field.rs", + "tests/ui/unsafe-fields/auxiliary/unsafe-fields-crate-dep.rs", + + // TODO: guard patterns: `match expr { (A if f()) | (B if g()) => {} }` + // https://github.com/dtolnay/syn/issues/1793 + "src/tools/rustfmt/tests/target/guard_patterns.rs", + + // TODO: struct field default: `struct S { field: i32 = 1 }` + // https://github.com/dtolnay/syn/issues/1774 + "tests/ui/structs/auxiliary/struct_field_default.rs", + "tests/ui/structs/default-field-values-support.rs", + + // TODO: return type notation: `where T: Trait<method(): Send>` and `where T::method(..): Send` + // https://github.com/dtolnay/syn/issues/1434 + "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/return_type_syntax_in_path.rs", + "src/tools/rustfmt/tests/target/return-type-notation.rs", + "tests/ui/associated-type-bounds/all-generics-lookup.rs", + "tests/ui/associated-type-bounds/implied-from-self-where-clause.rs", + "tests/ui/associated-type-bounds/return-type-notation/basic.rs", + "tests/ui/associated-type-bounds/return-type-notation/higher-ranked-bound-works.rs", + "tests/ui/associated-type-bounds/return-type-notation/namespace-conflict.rs", + "tests/ui/associated-type-bounds/return-type-notation/path-constrained-in-method.rs", + "tests/ui/associated-type-bounds/return-type-notation/path-self-qself.rs", + "tests/ui/associated-type-bounds/return-type-notation/path-works.rs", + "tests/ui/associated-type-bounds/return-type-notation/unpretty-parenthesized.rs", + "tests/ui/async-await/return-type-notation/normalizing-self-auto-trait-issue-109924.rs", + "tests/ui/async-await/return-type-notation/rtn-implied-in-supertrait.rs", + "tests/ui/async-await/return-type-notation/supertrait-bound.rs", + "tests/ui/borrowck/alias-liveness/rtn-static.rs", + "tests/ui/feature-gates/feature-gate-return_type_notation.rs", + + // TODO: lazy type alias syntax with where-clause in trailing position + // https://github.com/dtolnay/syn/issues/1525 + "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/type_item_where_clause.rs", + "src/tools/rustfmt/tests/source/type-alias-where-clauses-with-comments.rs", + "src/tools/rustfmt/tests/source/type-alias-where-clauses.rs", + "src/tools/rustfmt/tests/target/type-alias-where-clauses-with-comments.rs", + "src/tools/rustfmt/tests/target/type-alias-where-clauses.rs", + "tests/rustdoc/typedef-inner-variants-lazy_type_alias.rs", + + // TODO: gen blocks and functions + // https://github.com/dtolnay/syn/issues/1526 + "compiler/rustc_codegen_cranelift/example/gen_block_iterate.rs", + "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/gen_blocks.rs", + "tests/ui/coroutine/async-gen-deduce-yield.rs", + "tests/ui/coroutine/async-gen-yield-ty-is-unit.rs", + "tests/ui/coroutine/async_gen_fn_iter.rs", + "tests/ui/coroutine/gen_block_is_fused_iter.rs", + "tests/ui/coroutine/gen_block_is_iter.rs", + "tests/ui/coroutine/gen_block_iterate.rs", + "tests/ui/coroutine/gen_fn_iter.rs", + "tests/ui/coroutine/gen_fn_lifetime_capture.rs", + "tests/ui/coroutine/other-attribute-on-gen.rs", + "tests/ui/coroutine/return-types-diverge.rs", + "tests/ui/higher-ranked/builtin-closure-like-bounds.rs", + "tests/ui/sanitizer/cfi/coroutine.rs", + + // TODO: `!` as a pattern + // https://github.com/dtolnay/syn/issues/1546 + "tests/mir-opt/building/match/never_patterns.rs", + "tests/ui/rfcs/rfc-0000-never_patterns/diverges.rs", + "tests/ui/rfcs/rfc-0000-never_patterns/use-bindings.rs", + + // TODO: async trait bounds: `impl async Fn()` + // https://github.com/dtolnay/syn/issues/1628 + "src/tools/miri/tests/pass/async-closure-captures.rs", + "src/tools/miri/tests/pass/async-closure-drop.rs", + "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/async_trait_bound.rs", + "src/tools/rustfmt/tests/target/asyncness.rs", + "tests/codegen/async-closure-debug.rs", + "tests/coverage/async_closure.rs", + "tests/ui/async-await/async-closures/async-fn-mut-for-async-fn.rs", + "tests/ui/async-await/async-closures/async-fn-once-for-async-fn.rs", + "tests/ui/async-await/async-closures/auxiliary/foreign.rs", + "tests/ui/async-await/async-closures/body-check-on-non-fnmut.rs", + "tests/ui/async-await/async-closures/box-deref-in-debuginfo.rs", + "tests/ui/async-await/async-closures/brand.rs", + "tests/ui/async-await/async-closures/captures.rs", + "tests/ui/async-await/async-closures/clone-closure.rs", + "tests/ui/async-await/async-closures/constrained-but-no-upvars-yet.rs", + "tests/ui/async-await/async-closures/debuginfo-by-move-body.rs", + "tests/ui/async-await/async-closures/drop.rs", + "tests/ui/async-await/async-closures/force-move-due-to-inferred-kind.rs", + "tests/ui/async-await/async-closures/foreign.rs", + "tests/ui/async-await/async-closures/inline-body.rs", + "tests/ui/async-await/async-closures/mangle.rs", + "tests/ui/async-await/async-closures/moro-example.rs", + "tests/ui/async-await/async-closures/move-is-async-fn.rs", + "tests/ui/async-await/async-closures/mut-ref-reborrow.rs", + "tests/ui/async-await/async-closures/no-borrow-from-env.rs", + "tests/ui/async-await/async-closures/non-copy-arg-does-not-force-inner-move.rs", + "tests/ui/async-await/async-closures/overlapping-projs.rs", + "tests/ui/async-await/async-closures/precise-captures.rs", + "tests/ui/async-await/async-closures/refd.rs", + "tests/ui/async-await/async-closures/signature-deduction.rs", + "tests/ui/async-await/async-fn/edition-2015-not-async-bound.rs", + "tests/ui/async-await/async-fn/higher-ranked-async-fn.rs", + "tests/ui/async-await/async-fn/impl-trait.rs", + "tests/ui/async-await/async-fn/project.rs", + "tests/ui/async-await/async-fn/sugar.rs", + + // TODO: mutable by-reference bindings (mut ref) + // https://github.com/dtolnay/syn/issues/1629 + "src/tools/rustfmt/tests/source/mut_ref.rs", + "src/tools/rustfmt/tests/target/mut_ref.rs", + "tests/ui/mut/mut-ref.rs", + + // TODO: postfix match + // https://github.com/dtolnay/syn/issues/1630 + "src/tools/rustfmt/tests/source/postfix-match/pf-match.rs", + "src/tools/rustfmt/tests/target/postfix-match/pf-match.rs", + "tests/pretty/postfix-match/simple-matches.rs", + "tests/ui/match/postfix-match/no-unused-parens.rs", + "tests/ui/match/postfix-match/pf-match-chain.rs", + "tests/ui/match/postfix-match/postfix-match.rs", + + // TODO: delegation + // https://github.com/dtolnay/syn/issues/1580 + "tests/pretty/delegation.rs", + "tests/ui/delegation/body-identity-glob.rs", + "tests/ui/delegation/body-identity-list.rs", + "tests/ui/delegation/explicit-paths-in-traits-pass.rs", + "tests/ui/delegation/explicit-paths-pass.rs", + "tests/ui/delegation/explicit-paths-signature-pass.rs", + "tests/ui/delegation/fn-header.rs", + "tests/ui/delegation/generics/free-fn-to-free-fn-pass.rs", + "tests/ui/delegation/generics/free-fn-to-trait-method-pass.rs", + "tests/ui/delegation/generics/impl-to-free-fn-pass.rs", + "tests/ui/delegation/generics/impl-trait-to-trait-method-pass.rs", + "tests/ui/delegation/generics/inherent-impl-to-trait-method-pass.rs", + "tests/ui/delegation/generics/trait-method-to-other-pass.rs", + "tests/ui/delegation/glob-glob.rs", + "tests/ui/delegation/glob-override.rs", + "tests/ui/delegation/glob.rs", + "tests/ui/delegation/impl-trait.rs", + "tests/ui/delegation/list.rs", + "tests/ui/delegation/macro-inside-glob.rs", + "tests/ui/delegation/macro-inside-list.rs", + "tests/ui/delegation/method-call-priority.rs", + "tests/ui/delegation/parse.rs", + "tests/ui/delegation/rename.rs", + "tests/ui/delegation/self-coercion.rs", + + // TODO: for await + // https://github.com/dtolnay/syn/issues/1631 + "tests/ui/async-await/for-await-2015.rs", + "tests/ui/async-await/for-await-passthrough.rs", + "tests/ui/async-await/for-await.rs", + + // TODO: const trait bound: `T: const Trait` and `impl const Trait` and `~const Trait` + // https://github.com/dtolnay/syn/issues/1632 + "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/const_trait_bound.rs", + "tests/ui/generic-const-items/const-trait-impl.rs", + "tests/ui/traits/const-traits/const-bound-in-host.rs", + "tests/ui/traits/const-traits/const-drop.rs", + "tests/ui/traits/const-traits/const-impl-trait.rs", + "tests/ui/traits/const-traits/const-in-closure.rs", + "tests/ui/traits/const-traits/dont-ice-on-const-pred-for-bounds.rs", + "tests/ui/traits/const-traits/effects/auxiliary/minicore.rs", + "tests/ui/traits/const-traits/effects/dont-prefer-param-env-for-infer-self-ty.rs", + "tests/ui/traits/const-traits/effects/minicore-const-fn-early-bound.rs", + "tests/ui/traits/const-traits/predicate-entailment-passes.rs", + "tests/ui/traits/const-traits/tilde-const-syntax.rs", + + // TODO: unparenthesized half-open range pattern inside slice pattern: `[1..]` + // https://github.com/dtolnay/syn/issues/1769 + "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/range_pat.rs", + "tests/ui/consts/miri_unleashed/const_refers_to_static_cross_crate.rs", + + // TODO: pinned type sugar: `&pin const Self` + // https://github.com/dtolnay/syn/issues/1770 + "src/tools/rustfmt/tests/source/pin_sugar.rs", + "src/tools/rustfmt/tests/target/pin_sugar.rs", + "tests/ui/async-await/pin-ergonomics/sugar.rs", + + // TODO: `|| .. .method()` + "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/closure_range_method_call.rs", + "src/tools/rustfmt/tests/source/issue-4808.rs", + + // Several of the above + "tests/ui/unpretty/expanded-exhaustive.rs", + + // Rustc bug: https://github.com/rust-lang/rust/issues/132080 + "src/tools/rust-analyzer/crates/parser/test_data/parser/ok/0073_safe_declarations_in_extern_blocks.rs", + + // Compile-fail expr parameter in const generic position: f::<1 + 2>() + "tests/ui/const-generics/early/closing-args-token.rs", + "tests/ui/const-generics/early/const-expression-parameter.rs", + + // Compile-fail variadics in not the last position of a function parameter list + "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/fn_def_param.rs", + "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/param_list_vararg.rs", + "tests/ui/parser/variadic-ffi-syntactic-pass.rs", + + // Need at least one trait in impl Trait, no such type as impl 'static + "tests/ui/type-alias-impl-trait/generic_type_does_not_live_long_enough.rs", + + // Negative polarity trait bound: `where T: !Copy` + "src/tools/rustfmt/tests/target/negative-bounds.rs", + "tests/ui/traits/negative-bounds/supertrait.rs", + + // Const impl that is not a trait impl: `impl ~const T {}` + "tests/ui/traits/const-traits/syntax.rs", + + // Lifetimes and types out of order in angle bracketed path arguments + "tests/ui/parser/constraints-before-generic-args-syntactic-pass.rs", + + // Deprecated anonymous parameter syntax in traits + "src/tools/rustfmt/tests/source/trait.rs", + "src/tools/rustfmt/tests/target/trait.rs", + "tests/ui/issues/issue-13105.rs", + "tests/ui/issues/issue-13775.rs", + "tests/ui/issues/issue-34074.rs", + "tests/ui/proc-macro/trait-fn-args-2015.rs", + + // Deprecated where-clause location + "src/tools/rustfmt/tests/source/issue_4257.rs", + "src/tools/rustfmt/tests/source/issue_4911.rs", + "src/tools/rustfmt/tests/target/issue_4257.rs", + "src/tools/rustfmt/tests/target/issue_4911.rs", + "tests/pretty/gat-bounds.rs", + "tests/rustdoc/generic-associated-types/gats.rs", + + // Deprecated trait object syntax with parenthesized generic arguments and no dyn keyword + "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/path_fn_trait_args.rs", + "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/typepathfn_with_coloncolon.rs", + "src/tools/rustfmt/tests/source/attrib.rs", + "src/tools/rustfmt/tests/source/closure.rs", + "src/tools/rustfmt/tests/source/existential_type.rs", + "src/tools/rustfmt/tests/source/fn-simple.rs", + "src/tools/rustfmt/tests/source/fn_args_layout-vertical.rs", + "src/tools/rustfmt/tests/source/issue-4689/one.rs", + "src/tools/rustfmt/tests/source/issue-4689/two.rs", + "src/tools/rustfmt/tests/source/paths.rs", + "src/tools/rustfmt/tests/source/structs.rs", + "src/tools/rustfmt/tests/target/attrib.rs", + "src/tools/rustfmt/tests/target/closure.rs", + "src/tools/rustfmt/tests/target/existential_type.rs", + "src/tools/rustfmt/tests/target/fn-simple.rs", + "src/tools/rustfmt/tests/target/fn.rs", + "src/tools/rustfmt/tests/target/fn_args_layout-vertical.rs", + "src/tools/rustfmt/tests/target/issue-4689/one.rs", + "src/tools/rustfmt/tests/target/issue-4689/two.rs", + "src/tools/rustfmt/tests/target/paths.rs", + "src/tools/rustfmt/tests/target/structs.rs", + "tests/codegen-units/item-collection/non-generic-closures.rs", + "tests/debuginfo/recursive-enum.rs", + "tests/pretty/closure-reform-pretty.rs", + "tests/run-make/reproducible-build-2/reproducible-build.rs", + "tests/run-make/reproducible-build/reproducible-build.rs", + "tests/ui/auxiliary/typeid-intrinsic-aux1.rs", + "tests/ui/auxiliary/typeid-intrinsic-aux2.rs", + "tests/ui/impl-trait/generic-with-implicit-hrtb-without-dyn.rs", + "tests/ui/lifetimes/auxiliary/lifetime_bound_will_change_warning_lib.rs", + "tests/ui/lifetimes/bare-trait-object-borrowck.rs", + "tests/ui/lifetimes/bare-trait-object.rs", + "tests/ui/parser/bounds-obj-parens.rs", + + // Various extensions to Rust syntax made up by rust-analyzer + "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/assoc_type_bound.rs", + "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/const_param_default_path.rs", + "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/field_expr.rs", + "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/generic_arg_bounds.rs", + "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/use_tree_abs_star.rs", + "src/tools/rust-analyzer/crates/parser/test_data/parser/ok/0015_use_tree.rs", + "src/tools/rust-analyzer/crates/parser/test_data/parser/ok/0029_range_forms.rs", + "src/tools/rust-analyzer/crates/parser/test_data/parser/ok/0051_parameter_attrs.rs", + "src/tools/rust-analyzer/crates/parser/test_data/parser/ok/0055_dot_dot_dot.rs", + "src/tools/rust-analyzer/crates/parser/test_data/parser/ok/0068_item_modifiers.rs", + "src/tools/rust-analyzer/crates/syntax/test_data/parser/validation/0031_block_inner_attrs.rs", + "src/tools/rust-analyzer/crates/syntax/test_data/parser/validation/0038_endless_inclusive_range.rs", + "src/tools/rust-analyzer/crates/syntax/test_data/parser/validation/0045_ambiguous_trait_object.rs", + "src/tools/rust-analyzer/crates/syntax/test_data/parser/validation/0046_mutable_const_item.rs", + + // Placeholder syntax for "throw expressions" + "compiler/rustc_errors/src/translation.rs", + "compiler/rustc_expand/src/module.rs", + "compiler/rustc_trait_selection/src/error_reporting/infer/need_type_info.rs", + "src/tools/clippy/tests/ui/needless_return.rs", + "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/yeet_expr.rs", + "tests/pretty/yeet-expr.rs", + "tests/ui/try-trait/yeet-for-option.rs", + "tests/ui/try-trait/yeet-for-result.rs", + + // Edition 2015 code using identifiers that are now keywords + // TODO: some of these we should probably parse + "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/dyn_trait_type_weak.rs", + "src/tools/rustfmt/tests/source/configs/indent_style/block_call.rs", + "src/tools/rustfmt/tests/source/configs/use_try_shorthand/false.rs", + "src/tools/rustfmt/tests/source/configs/use_try_shorthand/true.rs", + "src/tools/rustfmt/tests/source/issue_1306.rs", + "src/tools/rustfmt/tests/source/try-conversion.rs", + "src/tools/rustfmt/tests/target/configs/indent_style/block_call.rs", + "src/tools/rustfmt/tests/target/configs/use_try_shorthand/false.rs", + "src/tools/rustfmt/tests/target/issue-1681.rs", + "src/tools/rustfmt/tests/target/issue_1306.rs", + "tests/ui/dyn-keyword/dyn-2015-no-warnings-without-lints.rs", + "tests/ui/editions/edition-keywords-2015-2015.rs", + "tests/ui/editions/edition-keywords-2015-2018.rs", + "tests/ui/lint/keyword-idents/auxiliary/multi_file_submod.rs", + "tests/ui/lint/lint_pre_expansion_extern_module_aux.rs", + "tests/ui/macros/macro-comma-support-rpass.rs", + "tests/ui/macros/try-macro.rs", + "tests/ui/parser/extern-crate-async.rs", + "tests/ui/try-block/try-is-identifier-edition2015.rs", + + // Excessive nesting + "tests/ui/issues/issue-74564-if-expr-stack-overflow.rs", + + // Testing tools on invalid syntax + "src/tools/rustfmt/tests/coverage/target/comments.rs", + "src/tools/rustfmt/tests/parser/issue-4126/invalid.rs", + "src/tools/rustfmt/tests/parser/issue_4418.rs", + "src/tools/rustfmt/tests/parser/stashed-diag.rs", + "src/tools/rustfmt/tests/parser/stashed-diag2.rs", + "src/tools/rustfmt/tests/parser/unclosed-delims/issue_4466.rs", + "src/tools/rustfmt/tests/source/configs/disable_all_formatting/true.rs", + "src/tools/rustfmt/tests/source/configs/spaces_around_ranges/false.rs", + "src/tools/rustfmt/tests/source/configs/spaces_around_ranges/true.rs", + "src/tools/rustfmt/tests/source/type.rs", + "src/tools/rustfmt/tests/target/configs/spaces_around_ranges/false.rs", + "src/tools/rustfmt/tests/target/configs/spaces_around_ranges/true.rs", + "src/tools/rustfmt/tests/target/type.rs", + "src/tools/rustfmt/tests/target/unsafe_extern_blocks.rs", + "tests/run-make/translation/test.rs", + "tests/ui/generics/issue-94432-garbage-ice.rs", + + // Generated file containing a top-level expression, used with `include!` + "compiler/rustc_codegen_gcc/src/intrinsic/archs.rs", + + // Not actually test cases + "tests/ui/lint/expansion-time-include.rs", + "tests/ui/macros/auxiliary/macro-comma-support.rs", + "tests/ui/macros/auxiliary/macro-include-items-expr.rs", + "tests/ui/macros/include-single-expr-helper.rs", + "tests/ui/macros/include-single-expr-helper-1.rs", + "tests/ui/parser/issues/auxiliary/issue-21146-inc.rs", +]; + +#[rustfmt::skip] +static EXCLUDE_DIRS: &[&str] = &[ + // Inputs that intentionally do not parse + "src/tools/rust-analyzer/crates/parser/test_data/parser/err", + "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/err", + + // Inputs that lex but do not necessarily parse + "src/tools/rust-analyzer/crates/parser/test_data/lexer", + + // Inputs that used to crash rust-analyzer, but aren't necessarily supposed to parse + "src/tools/rust-analyzer/crates/syntax/test_data/parser/fuzz-failures", + "src/tools/rust-analyzer/crates/syntax/test_data/reparse/fuzz-failures", + + // Inputs that crash rustc, making no claim about whether they are valid Rust + "tests/crashes", +]; + +// Directories in which a .stderr implies the corresponding .rs is not expected +// to work. +static UI_TEST_DIRS: &[&str] = &["tests/ui", "tests/rustdoc-ui"]; + +pub fn for_each_rust_file(for_each: impl Fn(&Path) + Sync + Send) { + let mut rs_files = BTreeSet::new(); + + let repo_dir = Path::new("tests/rust"); + for entry in WalkDir::new(repo_dir) + .into_iter() + .filter_entry(base_dir_filter) + { + let entry = entry.unwrap(); + if !entry.file_type().is_dir() { + rs_files.insert(entry.into_path()); + } + } + + for ui_test_dir in UI_TEST_DIRS { + for entry in WalkDir::new(repo_dir.join(ui_test_dir)) { + let mut path = entry.unwrap().into_path(); + if path.extension() == Some(OsStr::new("stderr")) { + loop { + rs_files.remove(&path.with_extension("rs")); + path = path.with_extension(""); + if path.extension().is_none() { + break; + } + } + } + } + } + + rs_files.par_iter().map(PathBuf::as_path).for_each(for_each); +} + +pub fn base_dir_filter(entry: &DirEntry) -> bool { + let path = entry.path(); + + let mut path_string = path.to_string_lossy(); + if cfg!(windows) { + path_string = path_string.replace('\\', "/").into(); + } + let path_string = if path_string == "tests/rust" { + return true; + } else if let Some(path) = path_string.strip_prefix("tests/rust/") { + path + } else { + panic!("unexpected path in Rust dist: {}", path_string); + }; + + if path.is_dir() { + return !EXCLUDE_DIRS.contains(&path_string); + } + + if path.extension() != Some(OsStr::new("rs")) { + return false; + } + + !EXCLUDE_FILES.contains(&path_string) +} + +#[allow(dead_code)] +pub fn edition(path: &Path) -> &'static str { + if path.ends_with("dyn-2015-no-warnings-without-lints.rs") { + "2015" + } else { + "2021" + } +} + +#[allow(dead_code)] +pub fn abort_after() -> usize { + match env::var("ABORT_AFTER_FAILURE") { + Ok(s) => s.parse().expect("failed to parse ABORT_AFTER_FAILURE"), + Err(_) => usize::MAX, + } +} + +pub fn rayon_init() { + let stack_size = match env::var("RUST_MIN_STACK") { + Ok(s) => s.parse().expect("failed to parse RUST_MIN_STACK"), + Err(_) => 1024 * 1024 * if cfg!(debug_assertions) { 40 } else { 20 }, + }; + ThreadPoolBuilder::new() + .stack_size(stack_size) + .build_global() + .unwrap(); +} + +pub fn clone_rust() { + let needs_clone = match fs::read_to_string("tests/rust/COMMIT") { + Err(_) => true, + Ok(contents) => contents.trim() != REVISION, + }; + if needs_clone { + download_and_unpack().unwrap(); + } + + let mut missing = String::new(); + let test_src = Path::new("tests/rust"); + + let mut exclude_files_set = BTreeSet::new(); + for exclude in EXCLUDE_FILES { + if !exclude_files_set.insert(exclude) { + panic!("duplicate path in EXCLUDE_FILES: {}", exclude); + } + for dir in EXCLUDE_DIRS { + if Path::new(exclude).starts_with(dir) { + panic!("excluded file {} is inside an excluded dir", exclude); + } + } + if !test_src.join(exclude).is_file() { + missing += "\ntests/rust/"; + missing += exclude; + } + } + + let mut exclude_dirs_set = BTreeSet::new(); + for exclude in EXCLUDE_DIRS { + if !exclude_dirs_set.insert(exclude) { + panic!("duplicate path in EXCLUDE_DIRS: {}", exclude); + } + if !test_src.join(exclude).is_dir() { + missing += "\ntests/rust/"; + missing += exclude; + missing += "/"; + } + } + + if !missing.is_empty() { + panic!("excluded test file does not exist:{}\n", missing); + } +} + +fn download_and_unpack() -> Result<()> { + let url = format!( + "https://github.com/rust-lang/rust/archive/{}.tar.gz", + REVISION + ); + let response = reqwest::blocking::get(url)?.error_for_status()?; + let progress = Progress::new(response); + let decoder = GzDecoder::new(progress); + let mut archive = Archive::new(decoder); + let prefix = format!("rust-{}", REVISION); + + let tests_rust = Path::new("tests/rust"); + if tests_rust.exists() { + fs::remove_dir_all(tests_rust)?; + } + + for entry in archive.entries()? { + let mut entry = entry?; + let path = entry.path()?; + if path == Path::new("pax_global_header") { + continue; + } + let relative = path.strip_prefix(&prefix)?; + let out = tests_rust.join(relative); + entry.unpack(&out)?; + } + + fs::write("tests/rust/COMMIT", REVISION)?; + Ok(()) +} diff --git a/vendor/syn/tests/repo/progress.rs b/vendor/syn/tests/repo/progress.rs new file mode 100644 index 00000000..28c8a44b --- /dev/null +++ b/vendor/syn/tests/repo/progress.rs @@ -0,0 +1,37 @@ +use std::io::{Read, Result}; +use std::time::{Duration, Instant}; + +pub struct Progress<R> { + bytes: usize, + tick: Instant, + stream: R, +} + +impl<R> Progress<R> { + pub fn new(stream: R) -> Self { + Progress { + bytes: 0, + tick: Instant::now() + Duration::from_millis(2000), + stream, + } + } +} + +impl<R: Read> Read for Progress<R> { + fn read(&mut self, buf: &mut [u8]) -> Result<usize> { + let num = self.stream.read(buf)?; + self.bytes += num; + let now = Instant::now(); + if now > self.tick { + self.tick = now + Duration::from_millis(500); + errorf!("downloading... {} bytes\n", self.bytes); + } + Ok(num) + } +} + +impl<R> Drop for Progress<R> { + fn drop(&mut self) { + errorf!("done ({} bytes)\n", self.bytes); + } +} diff --git a/vendor/syn/tests/test_asyncness.rs b/vendor/syn/tests/test_asyncness.rs new file mode 100644 index 00000000..09dbfc58 --- /dev/null +++ b/vendor/syn/tests/test_asyncness.rs @@ -0,0 +1,47 @@ +#![allow( + clippy::elidable_lifetime_names, + clippy::needless_lifetimes, + clippy::uninlined_format_args +)] + +#[macro_use] +mod macros; + +use syn::{Expr, Item}; + +#[test] +fn test_async_fn() { + let input = "async fn process() {}"; + + snapshot!(input as Item, @r#" + Item::Fn { + vis: Visibility::Inherited, + sig: Signature { + asyncness: Some, + ident: "process", + generics: Generics, + output: ReturnType::Default, + }, + block: Block { + stmts: [], + }, + } + "#); +} + +#[test] +fn test_async_closure() { + let input = "async || {}"; + + snapshot!(input as Expr, @r#" + Expr::Closure { + asyncness: Some, + output: ReturnType::Default, + body: Expr::Block { + block: Block { + stmts: [], + }, + }, + } + "#); +} diff --git a/vendor/syn/tests/test_attribute.rs b/vendor/syn/tests/test_attribute.rs new file mode 100644 index 00000000..a19dd0b3 --- /dev/null +++ b/vendor/syn/tests/test_attribute.rs @@ -0,0 +1,229 @@ +#![allow( + clippy::elidable_lifetime_names, + clippy::needless_lifetimes, + clippy::uninlined_format_args +)] + +#[macro_use] +mod macros; + +use syn::parse::Parser; +use syn::{Attribute, Meta}; + +#[test] +fn test_meta_item_word() { + let meta = test("#[foo]"); + + snapshot!(meta, @r#" + Meta::Path { + segments: [ + PathSegment { + ident: "foo", + }, + ], + } + "#); +} + +#[test] +fn test_meta_item_name_value() { + let meta = test("#[foo = 5]"); + + snapshot!(meta, @r#" + Meta::NameValue { + path: Path { + segments: [ + PathSegment { + ident: "foo", + }, + ], + }, + value: Expr::Lit { + lit: 5, + }, + } + "#); +} + +#[test] +fn test_meta_item_bool_value() { + let meta = test("#[foo = true]"); + + snapshot!(meta, @r#" + Meta::NameValue { + path: Path { + segments: [ + PathSegment { + ident: "foo", + }, + ], + }, + value: Expr::Lit { + lit: Lit::Bool { + value: true, + }, + }, + } + "#); + + let meta = test("#[foo = false]"); + + snapshot!(meta, @r#" + Meta::NameValue { + path: Path { + segments: [ + PathSegment { + ident: "foo", + }, + ], + }, + value: Expr::Lit { + lit: Lit::Bool { + value: false, + }, + }, + } + "#); +} + +#[test] +fn test_meta_item_list_lit() { + let meta = test("#[foo(5)]"); + + snapshot!(meta, @r#" + Meta::List { + path: Path { + segments: [ + PathSegment { + ident: "foo", + }, + ], + }, + delimiter: MacroDelimiter::Paren, + tokens: TokenStream(`5`), + } + "#); +} + +#[test] +fn test_meta_item_list_word() { + let meta = test("#[foo(bar)]"); + + snapshot!(meta, @r#" + Meta::List { + path: Path { + segments: [ + PathSegment { + ident: "foo", + }, + ], + }, + delimiter: MacroDelimiter::Paren, + tokens: TokenStream(`bar`), + } + "#); +} + +#[test] +fn test_meta_item_list_name_value() { + let meta = test("#[foo(bar = 5)]"); + + snapshot!(meta, @r#" + Meta::List { + path: Path { + segments: [ + PathSegment { + ident: "foo", + }, + ], + }, + delimiter: MacroDelimiter::Paren, + tokens: TokenStream(`bar = 5`), + } + "#); +} + +#[test] +fn test_meta_item_list_bool_value() { + let meta = test("#[foo(bar = true)]"); + + snapshot!(meta, @r#" + Meta::List { + path: Path { + segments: [ + PathSegment { + ident: "foo", + }, + ], + }, + delimiter: MacroDelimiter::Paren, + tokens: TokenStream(`bar = true`), + } + "#); +} + +#[test] +fn test_meta_item_multiple() { + let meta = test("#[foo(word, name = 5, list(name2 = 6), word2)]"); + + snapshot!(meta, @r#" + Meta::List { + path: Path { + segments: [ + PathSegment { + ident: "foo", + }, + ], + }, + delimiter: MacroDelimiter::Paren, + tokens: TokenStream(`word , name = 5 , list (name2 = 6) , word2`), + } + "#); +} + +#[test] +fn test_bool_lit() { + let meta = test("#[foo(true)]"); + + snapshot!(meta, @r#" + Meta::List { + path: Path { + segments: [ + PathSegment { + ident: "foo", + }, + ], + }, + delimiter: MacroDelimiter::Paren, + tokens: TokenStream(`true`), + } + "#); +} + +#[test] +fn test_negative_lit() { + let meta = test("#[form(min = -1, max = 200)]"); + + snapshot!(meta, @r#" + Meta::List { + path: Path { + segments: [ + PathSegment { + ident: "form", + }, + ], + }, + delimiter: MacroDelimiter::Paren, + tokens: TokenStream(`min = - 1 , max = 200`), + } + "#); +} + +fn test(input: &str) -> Meta { + let attrs = Attribute::parse_outer.parse_str(input).unwrap(); + + assert_eq!(attrs.len(), 1); + let attr = attrs.into_iter().next().unwrap(); + + attr.meta +} diff --git a/vendor/syn/tests/test_derive_input.rs b/vendor/syn/tests/test_derive_input.rs new file mode 100644 index 00000000..11467c71 --- /dev/null +++ b/vendor/syn/tests/test_derive_input.rs @@ -0,0 +1,783 @@ +#![allow( + clippy::assertions_on_result_states, + clippy::elidable_lifetime_names, + clippy::manual_let_else, + clippy::needless_lifetimes, + clippy::too_many_lines, + clippy::uninlined_format_args +)] + +#[macro_use] +mod macros; + +use quote::quote; +use syn::{Data, DeriveInput}; + +#[test] +fn test_unit() { + let input = quote! { + struct Unit; + }; + + snapshot!(input as DeriveInput, @r#" + DeriveInput { + vis: Visibility::Inherited, + ident: "Unit", + generics: Generics, + data: Data::Struct { + fields: Fields::Unit, + semi_token: Some, + }, + } + "#); +} + +#[test] +fn test_struct() { + let input = quote! { + #[derive(Debug, Clone)] + pub struct Item { + pub ident: Ident, + pub attrs: Vec<Attribute> + } + }; + + snapshot!(input as DeriveInput, @r#" + DeriveInput { + attrs: [ + Attribute { + style: AttrStyle::Outer, + meta: Meta::List { + path: Path { + segments: [ + PathSegment { + ident: "derive", + }, + ], + }, + delimiter: MacroDelimiter::Paren, + tokens: TokenStream(`Debug , Clone`), + }, + }, + ], + vis: Visibility::Public, + ident: "Item", + generics: Generics, + data: Data::Struct { + fields: Fields::Named { + named: [ + Field { + vis: Visibility::Public, + ident: Some("ident"), + colon_token: Some, + ty: Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "Ident", + }, + ], + }, + }, + }, + Token![,], + Field { + vis: Visibility::Public, + ident: Some("attrs"), + colon_token: Some, + ty: Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "Vec", + arguments: PathArguments::AngleBracketed { + args: [ + GenericArgument::Type(Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "Attribute", + }, + ], + }, + }), + ], + }, + }, + ], + }, + }, + }, + ], + }, + }, + } + "#); + + snapshot!(&input.attrs[0].meta, @r#" + Meta::List { + path: Path { + segments: [ + PathSegment { + ident: "derive", + }, + ], + }, + delimiter: MacroDelimiter::Paren, + tokens: TokenStream(`Debug , Clone`), + } + "#); +} + +#[test] +fn test_union() { + let input = quote! { + union MaybeUninit<T> { + uninit: (), + value: T + } + }; + + snapshot!(input as DeriveInput, @r#" + DeriveInput { + vis: Visibility::Inherited, + ident: "MaybeUninit", + generics: Generics { + lt_token: Some, + params: [ + GenericParam::Type(TypeParam { + ident: "T", + }), + ], + gt_token: Some, + }, + data: Data::Union { + fields: FieldsNamed { + named: [ + Field { + vis: Visibility::Inherited, + ident: Some("uninit"), + colon_token: Some, + ty: Type::Tuple, + }, + Token![,], + Field { + vis: Visibility::Inherited, + ident: Some("value"), + colon_token: Some, + ty: Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "T", + }, + ], + }, + }, + }, + ], + }, + }, + } + "#); +} + +#[test] +#[cfg(feature = "full")] +fn test_enum() { + let input = quote! { + /// See the std::result module documentation for details. + #[must_use] + pub enum Result<T, E> { + Ok(T), + Err(E), + Surprise = 0isize, + + // Smuggling data into a proc_macro_derive, + // in the style of https://github.com/dtolnay/proc-macro-hack + ProcMacroHack = (0, "data").0 + } + }; + + snapshot!(input as DeriveInput, @r#" + DeriveInput { + attrs: [ + Attribute { + style: AttrStyle::Outer, + meta: Meta::NameValue { + path: Path { + segments: [ + PathSegment { + ident: "doc", + }, + ], + }, + value: Expr::Lit { + lit: " See the std::result module documentation for details.", + }, + }, + }, + Attribute { + style: AttrStyle::Outer, + meta: Meta::Path { + segments: [ + PathSegment { + ident: "must_use", + }, + ], + }, + }, + ], + vis: Visibility::Public, + ident: "Result", + generics: Generics { + lt_token: Some, + params: [ + GenericParam::Type(TypeParam { + ident: "T", + }), + Token![,], + GenericParam::Type(TypeParam { + ident: "E", + }), + ], + gt_token: Some, + }, + data: Data::Enum { + variants: [ + Variant { + ident: "Ok", + fields: Fields::Unnamed { + unnamed: [ + Field { + vis: Visibility::Inherited, + ty: Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "T", + }, + ], + }, + }, + }, + ], + }, + }, + Token![,], + Variant { + ident: "Err", + fields: Fields::Unnamed { + unnamed: [ + Field { + vis: Visibility::Inherited, + ty: Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "E", + }, + ], + }, + }, + }, + ], + }, + }, + Token![,], + Variant { + ident: "Surprise", + fields: Fields::Unit, + discriminant: Some(Expr::Lit { + lit: 0isize, + }), + }, + Token![,], + Variant { + ident: "ProcMacroHack", + fields: Fields::Unit, + discriminant: Some(Expr::Field { + base: Expr::Tuple { + elems: [ + Expr::Lit { + lit: 0, + }, + Token![,], + Expr::Lit { + lit: "data", + }, + ], + }, + member: Member::Unnamed(Index { + index: 0, + }), + }), + }, + ], + }, + } + "#); + + let meta_items: Vec<_> = input.attrs.into_iter().map(|attr| attr.meta).collect(); + + snapshot!(meta_items, @r#" + [ + Meta::NameValue { + path: Path { + segments: [ + PathSegment { + ident: "doc", + }, + ], + }, + value: Expr::Lit { + lit: " See the std::result module documentation for details.", + }, + }, + Meta::Path { + segments: [ + PathSegment { + ident: "must_use", + }, + ], + }, + ] + "#); +} + +#[test] +fn test_attr_with_non_mod_style_path() { + let input = quote! { + #[inert <T>] + struct S; + }; + + syn::parse2::<DeriveInput>(input).unwrap_err(); +} + +#[test] +fn test_attr_with_mod_style_path_with_self() { + let input = quote! { + #[foo::self] + struct S; + }; + + snapshot!(input as DeriveInput, @r#" + DeriveInput { + attrs: [ + Attribute { + style: AttrStyle::Outer, + meta: Meta::Path { + segments: [ + PathSegment { + ident: "foo", + }, + Token![::], + PathSegment { + ident: "self", + }, + ], + }, + }, + ], + vis: Visibility::Inherited, + ident: "S", + generics: Generics, + data: Data::Struct { + fields: Fields::Unit, + semi_token: Some, + }, + } + "#); + + snapshot!(&input.attrs[0].meta, @r#" + Meta::Path { + segments: [ + PathSegment { + ident: "foo", + }, + Token![::], + PathSegment { + ident: "self", + }, + ], + } + "#); +} + +#[test] +fn test_pub_restricted() { + // Taken from tests/rust/src/test/ui/resolve/auxiliary/privacy-struct-ctor.rs + let input = quote! { + pub(in m) struct Z(pub(in m::n) u8); + }; + + snapshot!(input as DeriveInput, @r#" + DeriveInput { + vis: Visibility::Restricted { + in_token: Some, + path: Path { + segments: [ + PathSegment { + ident: "m", + }, + ], + }, + }, + ident: "Z", + generics: Generics, + data: Data::Struct { + fields: Fields::Unnamed { + unnamed: [ + Field { + vis: Visibility::Restricted { + in_token: Some, + path: Path { + segments: [ + PathSegment { + ident: "m", + }, + Token![::], + PathSegment { + ident: "n", + }, + ], + }, + }, + ty: Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "u8", + }, + ], + }, + }, + }, + ], + }, + semi_token: Some, + }, + } + "#); +} + +#[test] +fn test_pub_restricted_crate() { + let input = quote! { + pub(crate) struct S; + }; + + snapshot!(input as DeriveInput, @r#" + DeriveInput { + vis: Visibility::Restricted { + path: Path { + segments: [ + PathSegment { + ident: "crate", + }, + ], + }, + }, + ident: "S", + generics: Generics, + data: Data::Struct { + fields: Fields::Unit, + semi_token: Some, + }, + } + "#); +} + +#[test] +fn test_pub_restricted_super() { + let input = quote! { + pub(super) struct S; + }; + + snapshot!(input as DeriveInput, @r#" + DeriveInput { + vis: Visibility::Restricted { + path: Path { + segments: [ + PathSegment { + ident: "super", + }, + ], + }, + }, + ident: "S", + generics: Generics, + data: Data::Struct { + fields: Fields::Unit, + semi_token: Some, + }, + } + "#); +} + +#[test] +fn test_pub_restricted_in_super() { + let input = quote! { + pub(in super) struct S; + }; + + snapshot!(input as DeriveInput, @r#" + DeriveInput { + vis: Visibility::Restricted { + in_token: Some, + path: Path { + segments: [ + PathSegment { + ident: "super", + }, + ], + }, + }, + ident: "S", + generics: Generics, + data: Data::Struct { + fields: Fields::Unit, + semi_token: Some, + }, + } + "#); +} + +#[test] +fn test_fields_on_unit_struct() { + let input = quote! { + struct S; + }; + + snapshot!(input as DeriveInput, @r#" + DeriveInput { + vis: Visibility::Inherited, + ident: "S", + generics: Generics, + data: Data::Struct { + fields: Fields::Unit, + semi_token: Some, + }, + } + "#); + + let data = match input.data { + Data::Struct(data) => data, + _ => panic!("expected a struct"), + }; + + assert_eq!(0, data.fields.iter().count()); +} + +#[test] +fn test_fields_on_named_struct() { + let input = quote! { + struct S { + foo: i32, + pub bar: String, + } + }; + + snapshot!(input as DeriveInput, @r#" + DeriveInput { + vis: Visibility::Inherited, + ident: "S", + generics: Generics, + data: Data::Struct { + fields: Fields::Named { + named: [ + Field { + vis: Visibility::Inherited, + ident: Some("foo"), + colon_token: Some, + ty: Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "i32", + }, + ], + }, + }, + }, + Token![,], + Field { + vis: Visibility::Public, + ident: Some("bar"), + colon_token: Some, + ty: Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "String", + }, + ], + }, + }, + }, + Token![,], + ], + }, + }, + } + "#); + + let data = match input.data { + Data::Struct(data) => data, + _ => panic!("expected a struct"), + }; + + snapshot!(data.fields.into_iter().collect::<Vec<_>>(), @r#" + [ + Field { + vis: Visibility::Inherited, + ident: Some("foo"), + colon_token: Some, + ty: Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "i32", + }, + ], + }, + }, + }, + Field { + vis: Visibility::Public, + ident: Some("bar"), + colon_token: Some, + ty: Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "String", + }, + ], + }, + }, + }, + ] + "#); +} + +#[test] +fn test_fields_on_tuple_struct() { + let input = quote! { + struct S(i32, pub String); + }; + + snapshot!(input as DeriveInput, @r#" + DeriveInput { + vis: Visibility::Inherited, + ident: "S", + generics: Generics, + data: Data::Struct { + fields: Fields::Unnamed { + unnamed: [ + Field { + vis: Visibility::Inherited, + ty: Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "i32", + }, + ], + }, + }, + }, + Token![,], + Field { + vis: Visibility::Public, + ty: Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "String", + }, + ], + }, + }, + }, + ], + }, + semi_token: Some, + }, + } + "#); + + let data = match input.data { + Data::Struct(data) => data, + _ => panic!("expected a struct"), + }; + + snapshot!(data.fields.iter().collect::<Vec<_>>(), @r#" + [ + Field { + vis: Visibility::Inherited, + ty: Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "i32", + }, + ], + }, + }, + }, + Field { + vis: Visibility::Public, + ty: Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "String", + }, + ], + }, + }, + }, + ] + "#); +} + +#[test] +fn test_ambiguous_crate() { + let input = quote! { + // The field type is `(crate::X)` not `crate (::X)`. + struct S(crate::X); + }; + + snapshot!(input as DeriveInput, @r#" + DeriveInput { + vis: Visibility::Inherited, + ident: "S", + generics: Generics, + data: Data::Struct { + fields: Fields::Unnamed { + unnamed: [ + Field { + vis: Visibility::Inherited, + ty: Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "crate", + }, + Token![::], + PathSegment { + ident: "X", + }, + ], + }, + }, + }, + ], + }, + semi_token: Some, + }, + } + "#); +} diff --git a/vendor/syn/tests/test_expr.rs b/vendor/syn/tests/test_expr.rs new file mode 100644 index 00000000..e23d0bd9 --- /dev/null +++ b/vendor/syn/tests/test_expr.rs @@ -0,0 +1,1699 @@ +#![cfg(not(miri))] +#![recursion_limit = "1024"] +#![feature(rustc_private)] +#![allow( + clippy::elidable_lifetime_names, + clippy::match_like_matches_macro, + clippy::needless_lifetimes, + clippy::single_element_loop, + clippy::too_many_lines, + clippy::uninlined_format_args, + clippy::unreadable_literal +)] + +#[macro_use] +mod macros; + +mod common; + +use crate::common::visit::{AsIfPrinted, FlattenParens}; +use proc_macro2::{Delimiter, Group, Ident, Span, TokenStream}; +use quote::{quote, ToTokens as _}; +use std::process::ExitCode; +use syn::punctuated::Punctuated; +use syn::visit_mut::VisitMut as _; +use syn::{ + parse_quote, token, AngleBracketedGenericArguments, Arm, BinOp, Block, Expr, ExprArray, + ExprAssign, ExprAsync, ExprAwait, ExprBinary, ExprBlock, ExprBreak, ExprCall, ExprCast, + ExprClosure, ExprConst, ExprContinue, ExprField, ExprForLoop, ExprIf, ExprIndex, ExprLet, + ExprLit, ExprLoop, ExprMacro, ExprMatch, ExprMethodCall, ExprPath, ExprRange, ExprRawAddr, + ExprReference, ExprReturn, ExprStruct, ExprTry, ExprTryBlock, ExprTuple, ExprUnary, ExprUnsafe, + ExprWhile, ExprYield, GenericArgument, Label, Lifetime, Lit, LitInt, Macro, MacroDelimiter, + Member, Pat, PatWild, Path, PathArguments, PathSegment, PointerMutability, QSelf, RangeLimits, + ReturnType, Stmt, Token, Type, TypePath, UnOp, +}; + +#[test] +fn test_expr_parse() { + let tokens = quote!(..100u32); + snapshot!(tokens as Expr, @r#" + Expr::Range { + limits: RangeLimits::HalfOpen, + end: Some(Expr::Lit { + lit: 100u32, + }), + } + "#); + + let tokens = quote!(..100u32); + snapshot!(tokens as ExprRange, @r#" + ExprRange { + limits: RangeLimits::HalfOpen, + end: Some(Expr::Lit { + lit: 100u32, + }), + } + "#); +} + +#[test] +fn test_await() { + // Must not parse as Expr::Field. + let tokens = quote!(fut.await); + + snapshot!(tokens as Expr, @r#" + Expr::Await { + base: Expr::Path { + path: Path { + segments: [ + PathSegment { + ident: "fut", + }, + ], + }, + }, + } + "#); +} + +#[rustfmt::skip] +#[test] +fn test_tuple_multi_index() { + let expected = snapshot!("tuple.0.0" as Expr, @r#" + Expr::Field { + base: Expr::Field { + base: Expr::Path { + path: Path { + segments: [ + PathSegment { + ident: "tuple", + }, + ], + }, + }, + member: Member::Unnamed(Index { + index: 0, + }), + }, + member: Member::Unnamed(Index { + index: 0, + }), + } + "#); + + for &input in &[ + "tuple .0.0", + "tuple. 0.0", + "tuple.0 .0", + "tuple.0. 0", + "tuple . 0 . 0", + ] { + assert_eq!(expected, syn::parse_str(input).unwrap()); + } + + for tokens in [ + quote!(tuple.0.0), + quote!(tuple .0.0), + quote!(tuple. 0.0), + quote!(tuple.0 .0), + quote!(tuple.0. 0), + quote!(tuple . 0 . 0), + ] { + assert_eq!(expected, syn::parse2(tokens).unwrap()); + } +} + +#[test] +fn test_macro_variable_func() { + // mimics the token stream corresponding to `$fn()` + let path = Group::new(Delimiter::None, quote!(f)); + let tokens = quote!(#path()); + + snapshot!(tokens as Expr, @r#" + Expr::Call { + func: Expr::Group { + expr: Expr::Path { + path: Path { + segments: [ + PathSegment { + ident: "f", + }, + ], + }, + }, + }, + } + "#); + + let path = Group::new(Delimiter::None, quote! { #[inside] f }); + let tokens = quote!(#[outside] #path()); + + snapshot!(tokens as Expr, @r#" + Expr::Call { + attrs: [ + Attribute { + style: AttrStyle::Outer, + meta: Meta::Path { + segments: [ + PathSegment { + ident: "outside", + }, + ], + }, + }, + ], + func: Expr::Group { + expr: Expr::Path { + attrs: [ + Attribute { + style: AttrStyle::Outer, + meta: Meta::Path { + segments: [ + PathSegment { + ident: "inside", + }, + ], + }, + }, + ], + path: Path { + segments: [ + PathSegment { + ident: "f", + }, + ], + }, + }, + }, + } + "#); +} + +#[test] +fn test_macro_variable_macro() { + // mimics the token stream corresponding to `$macro!()` + let mac = Group::new(Delimiter::None, quote!(m)); + let tokens = quote!(#mac!()); + + snapshot!(tokens as Expr, @r#" + Expr::Macro { + mac: Macro { + path: Path { + segments: [ + PathSegment { + ident: "m", + }, + ], + }, + delimiter: MacroDelimiter::Paren, + tokens: TokenStream(``), + }, + } + "#); +} + +#[test] +fn test_macro_variable_struct() { + // mimics the token stream corresponding to `$struct {}` + let s = Group::new(Delimiter::None, quote! { S }); + let tokens = quote!(#s {}); + + snapshot!(tokens as Expr, @r#" + Expr::Struct { + path: Path { + segments: [ + PathSegment { + ident: "S", + }, + ], + }, + } + "#); +} + +#[test] +fn test_macro_variable_unary() { + // mimics the token stream corresponding to `$expr.method()` where expr is `&self` + let inner = Group::new(Delimiter::None, quote!(&self)); + let tokens = quote!(#inner.method()); + snapshot!(tokens as Expr, @r#" + Expr::MethodCall { + receiver: Expr::Group { + expr: Expr::Reference { + expr: Expr::Path { + path: Path { + segments: [ + PathSegment { + ident: "self", + }, + ], + }, + }, + }, + }, + method: "method", + } + "#); +} + +#[test] +fn test_macro_variable_match_arm() { + // mimics the token stream corresponding to `match v { _ => $expr }` + let expr = Group::new(Delimiter::None, quote! { #[a] () }); + let tokens = quote!(match v { _ => #expr }); + snapshot!(tokens as Expr, @r#" + Expr::Match { + expr: Expr::Path { + path: Path { + segments: [ + PathSegment { + ident: "v", + }, + ], + }, + }, + arms: [ + Arm { + pat: Pat::Wild, + body: Expr::Group { + expr: Expr::Tuple { + attrs: [ + Attribute { + style: AttrStyle::Outer, + meta: Meta::Path { + segments: [ + PathSegment { + ident: "a", + }, + ], + }, + }, + ], + }, + }, + }, + ], + } + "#); + + let expr = Group::new(Delimiter::None, quote!(loop {} + 1)); + let tokens = quote!(match v { _ => #expr }); + snapshot!(tokens as Expr, @r#" + Expr::Match { + expr: Expr::Path { + path: Path { + segments: [ + PathSegment { + ident: "v", + }, + ], + }, + }, + arms: [ + Arm { + pat: Pat::Wild, + body: Expr::Group { + expr: Expr::Binary { + left: Expr::Loop { + body: Block { + stmts: [], + }, + }, + op: BinOp::Add, + right: Expr::Lit { + lit: 1, + }, + }, + }, + }, + ], + } + "#); +} + +// https://github.com/dtolnay/syn/issues/1019 +#[test] +fn test_closure_vs_rangefull() { + #[rustfmt::skip] // rustfmt bug: https://github.com/rust-lang/rustfmt/issues/4808 + let tokens = quote!(|| .. .method()); + snapshot!(tokens as Expr, @r#" + Expr::MethodCall { + receiver: Expr::Closure { + output: ReturnType::Default, + body: Expr::Range { + limits: RangeLimits::HalfOpen, + }, + }, + method: "method", + } + "#); +} + +#[test] +fn test_postfix_operator_after_cast() { + syn::parse_str::<Expr>("|| &x as T[0]").unwrap_err(); + syn::parse_str::<Expr>("|| () as ()()").unwrap_err(); +} + +#[test] +fn test_range_kinds() { + syn::parse_str::<Expr>("..").unwrap(); + syn::parse_str::<Expr>("..hi").unwrap(); + syn::parse_str::<Expr>("lo..").unwrap(); + syn::parse_str::<Expr>("lo..hi").unwrap(); + + syn::parse_str::<Expr>("..=").unwrap_err(); + syn::parse_str::<Expr>("..=hi").unwrap(); + syn::parse_str::<Expr>("lo..=").unwrap_err(); + syn::parse_str::<Expr>("lo..=hi").unwrap(); + + syn::parse_str::<Expr>("...").unwrap_err(); + syn::parse_str::<Expr>("...hi").unwrap_err(); + syn::parse_str::<Expr>("lo...").unwrap_err(); + syn::parse_str::<Expr>("lo...hi").unwrap_err(); +} + +#[test] +fn test_range_precedence() { + snapshot!(".. .." as Expr, @r#" + Expr::Range { + limits: RangeLimits::HalfOpen, + end: Some(Expr::Range { + limits: RangeLimits::HalfOpen, + }), + } + "#); + + snapshot!(".. .. ()" as Expr, @r#" + Expr::Range { + limits: RangeLimits::HalfOpen, + end: Some(Expr::Range { + limits: RangeLimits::HalfOpen, + end: Some(Expr::Tuple), + }), + } + "#); + + snapshot!("() .. .." as Expr, @r#" + Expr::Range { + start: Some(Expr::Tuple), + limits: RangeLimits::HalfOpen, + end: Some(Expr::Range { + limits: RangeLimits::HalfOpen, + }), + } + "#); + + snapshot!("() = .. + ()" as Expr, @r" + Expr::Binary { + left: Expr::Assign { + left: Expr::Tuple, + right: Expr::Range { + limits: RangeLimits::HalfOpen, + }, + }, + op: BinOp::Add, + right: Expr::Tuple, + } + "); + + // A range with a lower bound cannot be the upper bound of another range, + // and a range with an upper bound cannot be the lower bound of another + // range. + syn::parse_str::<Expr>(".. x ..").unwrap_err(); + syn::parse_str::<Expr>("x .. x ..").unwrap_err(); +} + +#[test] +fn test_range_attrs() { + // Attributes are not allowed on range expressions starting with `..` + syn::parse_str::<Expr>("#[allow()] ..").unwrap_err(); + syn::parse_str::<Expr>("#[allow()] .. hi").unwrap_err(); + + snapshot!("#[allow()] lo .. hi" as Expr, @r#" + Expr::Range { + start: Some(Expr::Path { + attrs: [ + Attribute { + style: AttrStyle::Outer, + meta: Meta::List { + path: Path { + segments: [ + PathSegment { + ident: "allow", + }, + ], + }, + delimiter: MacroDelimiter::Paren, + tokens: TokenStream(``), + }, + }, + ], + path: Path { + segments: [ + PathSegment { + ident: "lo", + }, + ], + }, + }), + limits: RangeLimits::HalfOpen, + end: Some(Expr::Path { + path: Path { + segments: [ + PathSegment { + ident: "hi", + }, + ], + }, + }), + } + "#); +} + +#[test] +fn test_ranges_bailout() { + syn::parse_str::<Expr>(".. ?").unwrap_err(); + syn::parse_str::<Expr>(".. .field").unwrap_err(); + + snapshot!("return .. ?" as Expr, @r" + Expr::Try { + expr: Expr::Return { + expr: Some(Expr::Range { + limits: RangeLimits::HalfOpen, + }), + }, + } + "); + + snapshot!("break .. ?" as Expr, @r" + Expr::Try { + expr: Expr::Break { + expr: Some(Expr::Range { + limits: RangeLimits::HalfOpen, + }), + }, + } + "); + + snapshot!("|| .. ?" as Expr, @r" + Expr::Try { + expr: Expr::Closure { + output: ReturnType::Default, + body: Expr::Range { + limits: RangeLimits::HalfOpen, + }, + }, + } + "); + + snapshot!("return .. .field" as Expr, @r#" + Expr::Field { + base: Expr::Return { + expr: Some(Expr::Range { + limits: RangeLimits::HalfOpen, + }), + }, + member: Member::Named("field"), + } + "#); + + snapshot!("break .. .field" as Expr, @r#" + Expr::Field { + base: Expr::Break { + expr: Some(Expr::Range { + limits: RangeLimits::HalfOpen, + }), + }, + member: Member::Named("field"), + } + "#); + + snapshot!("|| .. .field" as Expr, @r#" + Expr::Field { + base: Expr::Closure { + output: ReturnType::Default, + body: Expr::Range { + limits: RangeLimits::HalfOpen, + }, + }, + member: Member::Named("field"), + } + "#); + + snapshot!("return .. = ()" as Expr, @r" + Expr::Assign { + left: Expr::Return { + expr: Some(Expr::Range { + limits: RangeLimits::HalfOpen, + }), + }, + right: Expr::Tuple, + } + "); + + snapshot!("return .. += ()" as Expr, @r" + Expr::Binary { + left: Expr::Return { + expr: Some(Expr::Range { + limits: RangeLimits::HalfOpen, + }), + }, + op: BinOp::AddAssign, + right: Expr::Tuple, + } + "); +} + +#[test] +fn test_ambiguous_label() { + for stmt in [ + quote! { + return 'label: loop { break 'label 42; }; + }, + quote! { + break ('label: loop { break 'label 42; }); + }, + quote! { + break 1 + 'label: loop { break 'label 42; }; + }, + quote! { + break 'outer 'inner: loop { break 'inner 42; }; + }, + ] { + syn::parse2::<Stmt>(stmt).unwrap(); + } + + for stmt in [ + // Parentheses required. See https://github.com/rust-lang/rust/pull/87026. + quote! { + break 'label: loop { break 'label 42; }; + }, + ] { + syn::parse2::<Stmt>(stmt).unwrap_err(); + } +} + +#[test] +fn test_extended_interpolated_path() { + let path = Group::new(Delimiter::None, quote!(a::b)); + + let tokens = quote!(if #path {}); + snapshot!(tokens as Expr, @r#" + Expr::If { + cond: Expr::Group { + expr: Expr::Path { + path: Path { + segments: [ + PathSegment { + ident: "a", + }, + Token![::], + PathSegment { + ident: "b", + }, + ], + }, + }, + }, + then_branch: Block { + stmts: [], + }, + } + "#); + + let tokens = quote!(#path {}); + snapshot!(tokens as Expr, @r#" + Expr::Struct { + path: Path { + segments: [ + PathSegment { + ident: "a", + }, + Token![::], + PathSegment { + ident: "b", + }, + ], + }, + } + "#); + + let tokens = quote!(#path :: c); + snapshot!(tokens as Expr, @r#" + Expr::Path { + path: Path { + segments: [ + PathSegment { + ident: "a", + }, + Token![::], + PathSegment { + ident: "b", + }, + Token![::], + PathSegment { + ident: "c", + }, + ], + }, + } + "#); + + let nested = Group::new(Delimiter::None, quote!(a::b || true)); + let tokens = quote!(if #nested && false {}); + snapshot!(tokens as Expr, @r#" + Expr::If { + cond: Expr::Binary { + left: Expr::Group { + expr: Expr::Binary { + left: Expr::Path { + path: Path { + segments: [ + PathSegment { + ident: "a", + }, + Token![::], + PathSegment { + ident: "b", + }, + ], + }, + }, + op: BinOp::Or, + right: Expr::Lit { + lit: Lit::Bool { + value: true, + }, + }, + }, + }, + op: BinOp::And, + right: Expr::Lit { + lit: Lit::Bool { + value: false, + }, + }, + }, + then_branch: Block { + stmts: [], + }, + } + "#); +} + +#[test] +fn test_tuple_comma() { + let mut expr = ExprTuple { + attrs: Vec::new(), + paren_token: token::Paren::default(), + elems: Punctuated::new(), + }; + snapshot!(expr.to_token_stream() as Expr, @"Expr::Tuple"); + + expr.elems.push_value(parse_quote!(continue)); + // Must not parse to Expr::Paren + snapshot!(expr.to_token_stream() as Expr, @r#" + Expr::Tuple { + elems: [ + Expr::Continue, + Token![,], + ], + } + "#); + + expr.elems.push_punct(<Token![,]>::default()); + snapshot!(expr.to_token_stream() as Expr, @r#" + Expr::Tuple { + elems: [ + Expr::Continue, + Token![,], + ], + } + "#); + + expr.elems.push_value(parse_quote!(continue)); + snapshot!(expr.to_token_stream() as Expr, @r#" + Expr::Tuple { + elems: [ + Expr::Continue, + Token![,], + Expr::Continue, + ], + } + "#); + + expr.elems.push_punct(<Token![,]>::default()); + snapshot!(expr.to_token_stream() as Expr, @r#" + Expr::Tuple { + elems: [ + Expr::Continue, + Token![,], + Expr::Continue, + Token![,], + ], + } + "#); +} + +#[test] +fn test_binop_associativity() { + // Left to right. + snapshot!("() + () + ()" as Expr, @r#" + Expr::Binary { + left: Expr::Binary { + left: Expr::Tuple, + op: BinOp::Add, + right: Expr::Tuple, + }, + op: BinOp::Add, + right: Expr::Tuple, + } + "#); + + // Right to left. + snapshot!("() += () += ()" as Expr, @r#" + Expr::Binary { + left: Expr::Tuple, + op: BinOp::AddAssign, + right: Expr::Binary { + left: Expr::Tuple, + op: BinOp::AddAssign, + right: Expr::Tuple, + }, + } + "#); + + // Parenthesization is required. + syn::parse_str::<Expr>("() == () == ()").unwrap_err(); +} + +#[test] +fn test_assign_range_precedence() { + // Range has higher precedence as the right-hand of an assignment, but + // ambiguous precedence as the left-hand of an assignment. + snapshot!("() = () .. ()" as Expr, @r#" + Expr::Assign { + left: Expr::Tuple, + right: Expr::Range { + start: Some(Expr::Tuple), + limits: RangeLimits::HalfOpen, + end: Some(Expr::Tuple), + }, + } + "#); + + snapshot!("() += () .. ()" as Expr, @r#" + Expr::Binary { + left: Expr::Tuple, + op: BinOp::AddAssign, + right: Expr::Range { + start: Some(Expr::Tuple), + limits: RangeLimits::HalfOpen, + end: Some(Expr::Tuple), + }, + } + "#); + + syn::parse_str::<Expr>("() .. () = ()").unwrap_err(); + syn::parse_str::<Expr>("() .. () += ()").unwrap_err(); +} + +#[test] +fn test_chained_comparison() { + // https://github.com/dtolnay/syn/issues/1738 + let _ = syn::parse_str::<Expr>("a = a < a <"); + let _ = syn::parse_str::<Expr>("a = a .. a .."); + let _ = syn::parse_str::<Expr>("a = a .. a +="); + + let err = syn::parse_str::<Expr>("a < a < a").unwrap_err(); + assert_eq!("comparison operators cannot be chained", err.to_string()); + + let err = syn::parse_str::<Expr>("a .. a .. a").unwrap_err(); + assert_eq!("unexpected token", err.to_string()); + + let err = syn::parse_str::<Expr>("a .. a += a").unwrap_err(); + assert_eq!("unexpected token", err.to_string()); +} + +#[test] +fn test_fixup() { + for tokens in [ + quote! { 2 * (1 + 1) }, + quote! { 0 + (0 + 0) }, + quote! { (a = b) = c }, + quote! { (x as i32) < 0 }, + quote! { 1 + (x as i32) < 0 }, + quote! { (1 + 1).abs() }, + quote! { (lo..hi)[..] }, + quote! { (a..b)..(c..d) }, + quote! { (x > ..) > x }, + quote! { (&mut fut).await }, + quote! { &mut (x as i32) }, + quote! { -(x as i32) }, + quote! { if (S {}) == 1 {} }, + quote! { { (m! {}) - 1 } }, + quote! { match m { _ => ({}) - 1 } }, + quote! { if let _ = (a && b) && c {} }, + quote! { if let _ = (S {}) {} }, + quote! { if (S {}) == 0 && let Some(_) = x {} }, + quote! { break ('a: loop { break 'a 1 } + 1) }, + quote! { a + (|| b) + c }, + quote! { if let _ = ((break) - 1 || true) {} }, + quote! { if let _ = (break + 1 || true) {} }, + quote! { if break (break) {} }, + quote! { if break break {} {} }, + quote! { if return (..) {} }, + quote! { if return .. {} {} }, + quote! { if || (Struct {}) {} }, + quote! { if || (Struct {}).await {} }, + quote! { if break || Struct {}.await {} }, + quote! { if break 'outer 'block: {} {} }, + quote! { if ..'block: {} {} }, + quote! { if break ({}).await {} }, + quote! { (break)() }, + quote! { (..) = () }, + quote! { (..) += () }, + quote! { (1 < 2) == (3 < 4) }, + quote! { { (let _ = ()) } }, + quote! { (#[attr] thing).field }, + quote! { #[attr] (1 + 1) }, + quote! { #[attr] (x = 1) }, + quote! { #[attr] (x += 1) }, + quote! { #[attr] (1 as T) }, + quote! { (return #[attr] (x + ..)).field }, + quote! { (self.f)() }, + quote! { (return)..=return }, + quote! { 1 + (return)..=1 + return }, + quote! { .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. }, + ] { + let original: Expr = syn::parse2(tokens).unwrap(); + + let mut flat = original.clone(); + FlattenParens::combine_attrs().visit_expr_mut(&mut flat); + let reconstructed: Expr = match syn::parse2(flat.to_token_stream()) { + Ok(reconstructed) => reconstructed, + Err(err) => panic!("failed to parse `{}`: {}", flat.to_token_stream(), err), + }; + + assert!( + original == reconstructed, + "original: {}\n{:#?}\nreconstructed: {}\n{:#?}", + original.to_token_stream(), + crate::macros::debug::Lite(&original), + reconstructed.to_token_stream(), + crate::macros::debug::Lite(&reconstructed), + ); + } +} + +#[test] +fn test_permutations() -> ExitCode { + fn iter(depth: usize, f: &mut dyn FnMut(Expr)) { + let span = Span::call_site(); + + // Expr::Path + f(Expr::Path(ExprPath { + // `x` + attrs: Vec::new(), + qself: None, + path: Path::from(Ident::new("x", span)), + })); + if false { + f(Expr::Path(ExprPath { + // `x::<T>` + attrs: Vec::new(), + qself: None, + path: Path { + leading_colon: None, + segments: Punctuated::from_iter([PathSegment { + ident: Ident::new("x", span), + arguments: PathArguments::AngleBracketed(AngleBracketedGenericArguments { + colon2_token: Some(Token), + lt_token: Token, + args: Punctuated::from_iter([GenericArgument::Type(Type::Path( + TypePath { + qself: None, + path: Path::from(Ident::new("T", span)), + }, + ))]), + gt_token: Token, + }), + }]), + }, + })); + f(Expr::Path(ExprPath { + // `<T as Trait>::CONST` + attrs: Vec::new(), + qself: Some(QSelf { + lt_token: Token, + ty: Box::new(Type::Path(TypePath { + qself: None, + path: Path::from(Ident::new("T", span)), + })), + position: 1, + as_token: Some(Token), + gt_token: Token, + }), + path: Path { + leading_colon: None, + segments: Punctuated::from_iter([ + PathSegment::from(Ident::new("Trait", span)), + PathSegment::from(Ident::new("CONST", span)), + ]), + }, + })); + } + + let Some(depth) = depth.checked_sub(1) else { + return; + }; + + // Expr::Assign + iter(depth, &mut |expr| { + iter(0, &mut |simple| { + f(Expr::Assign(ExprAssign { + // `x = $expr` + attrs: Vec::new(), + left: Box::new(simple.clone()), + eq_token: Token, + right: Box::new(expr.clone()), + })); + f(Expr::Assign(ExprAssign { + // `$expr = x` + attrs: Vec::new(), + left: Box::new(expr.clone()), + eq_token: Token, + right: Box::new(simple), + })); + }); + }); + + // Expr::Binary + iter(depth, &mut |expr| { + iter(0, &mut |simple| { + for op in [ + BinOp::Add(Token), + //BinOp::Sub(Token), + //BinOp::Mul(Token), + //BinOp::Div(Token), + //BinOp::Rem(Token), + //BinOp::And(Token), + //BinOp::Or(Token), + //BinOp::BitXor(Token), + //BinOp::BitAnd(Token), + //BinOp::BitOr(Token), + //BinOp::Shl(Token), + //BinOp::Shr(Token), + //BinOp::Eq(Token), + BinOp::Lt(Token), + //BinOp::Le(Token), + //BinOp::Ne(Token), + //BinOp::Ge(Token), + //BinOp::Gt(Token), + BinOp::ShlAssign(Token), + ] { + f(Expr::Binary(ExprBinary { + // `x + $expr` + attrs: Vec::new(), + left: Box::new(simple.clone()), + op, + right: Box::new(expr.clone()), + })); + f(Expr::Binary(ExprBinary { + // `$expr + x` + attrs: Vec::new(), + left: Box::new(expr.clone()), + op, + right: Box::new(simple.clone()), + })); + } + }); + }); + + // Expr::Block + f(Expr::Block(ExprBlock { + // `{}` + attrs: Vec::new(), + label: None, + block: Block { + brace_token: token::Brace(span), + stmts: Vec::new(), + }, + })); + + // Expr::Break + f(Expr::Break(ExprBreak { + // `break` + attrs: Vec::new(), + break_token: Token, + label: None, + expr: None, + })); + iter(depth, &mut |expr| { + f(Expr::Break(ExprBreak { + // `break $expr` + attrs: Vec::new(), + break_token: Token, + label: None, + expr: Some(Box::new(expr)), + })); + }); + + // Expr::Call + iter(depth, &mut |expr| { + f(Expr::Call(ExprCall { + // `$expr()` + attrs: Vec::new(), + func: Box::new(expr), + paren_token: token::Paren(span), + args: Punctuated::new(), + })); + }); + + // Expr::Cast + iter(depth, &mut |expr| { + f(Expr::Cast(ExprCast { + // `$expr as T` + attrs: Vec::new(), + expr: Box::new(expr), + as_token: Token, + ty: Box::new(Type::Path(TypePath { + qself: None, + path: Path::from(Ident::new("T", span)), + })), + })); + }); + + // Expr::Closure + iter(depth, &mut |expr| { + f(Expr::Closure(ExprClosure { + // `|| $expr` + attrs: Vec::new(), + lifetimes: None, + constness: None, + movability: None, + asyncness: None, + capture: None, + or1_token: Token, + inputs: Punctuated::new(), + or2_token: Token, + output: ReturnType::Default, + body: Box::new(expr), + })); + }); + + // Expr::Field + iter(depth, &mut |expr| { + f(Expr::Field(ExprField { + // `$expr.field` + attrs: Vec::new(), + base: Box::new(expr), + dot_token: Token, + member: Member::Named(Ident::new("field", span)), + })); + }); + + // Expr::If + iter(depth, &mut |expr| { + f(Expr::If(ExprIf { + // `if $expr {}` + attrs: Vec::new(), + if_token: Token, + cond: Box::new(expr), + then_branch: Block { + brace_token: token::Brace(span), + stmts: Vec::new(), + }, + else_branch: None, + })); + }); + + // Expr::Let + iter(depth, &mut |expr| { + f(Expr::Let(ExprLet { + attrs: Vec::new(), + let_token: Token, + pat: Box::new(Pat::Wild(PatWild { + attrs: Vec::new(), + underscore_token: Token, + })), + eq_token: Token, + expr: Box::new(expr), + })); + }); + + // Expr::Range + f(Expr::Range(ExprRange { + // `..` + attrs: Vec::new(), + start: None, + limits: RangeLimits::HalfOpen(Token), + end: None, + })); + iter(depth, &mut |expr| { + f(Expr::Range(ExprRange { + // `..$expr` + attrs: Vec::new(), + start: None, + limits: RangeLimits::HalfOpen(Token), + end: Some(Box::new(expr.clone())), + })); + f(Expr::Range(ExprRange { + // `$expr..` + attrs: Vec::new(), + start: Some(Box::new(expr)), + limits: RangeLimits::HalfOpen(Token), + end: None, + })); + }); + + // Expr::Reference + iter(depth, &mut |expr| { + f(Expr::Reference(ExprReference { + // `&$expr` + attrs: Vec::new(), + and_token: Token, + mutability: None, + expr: Box::new(expr), + })); + }); + + // Expr::Return + f(Expr::Return(ExprReturn { + // `return` + attrs: Vec::new(), + return_token: Token, + expr: None, + })); + iter(depth, &mut |expr| { + f(Expr::Return(ExprReturn { + // `return $expr` + attrs: Vec::new(), + return_token: Token, + expr: Some(Box::new(expr)), + })); + }); + + // Expr::Try + iter(depth, &mut |expr| { + f(Expr::Try(ExprTry { + // `$expr?` + attrs: Vec::new(), + expr: Box::new(expr), + question_token: Token, + })); + }); + + // Expr::Unary + iter(depth, &mut |expr| { + for op in [ + UnOp::Deref(Token), + //UnOp::Not(Token), + //UnOp::Neg(Token), + ] { + f(Expr::Unary(ExprUnary { + // `*$expr` + attrs: Vec::new(), + op, + expr: Box::new(expr.clone()), + })); + } + }); + + if false { + // Expr::Array + f(Expr::Array(ExprArray { + // `[]` + attrs: Vec::new(), + bracket_token: token::Bracket(span), + elems: Punctuated::new(), + })); + + // Expr::Async + f(Expr::Async(ExprAsync { + // `async {}` + attrs: Vec::new(), + async_token: Token, + capture: None, + block: Block { + brace_token: token::Brace(span), + stmts: Vec::new(), + }, + })); + + // Expr::Await + iter(depth, &mut |expr| { + f(Expr::Await(ExprAwait { + // `$expr.await` + attrs: Vec::new(), + base: Box::new(expr), + dot_token: Token, + await_token: Token, + })); + }); + + // Expr::Block + f(Expr::Block(ExprBlock { + // `'a: {}` + attrs: Vec::new(), + label: Some(Label { + name: Lifetime::new("'a", span), + colon_token: Token, + }), + block: Block { + brace_token: token::Brace(span), + stmts: Vec::new(), + }, + })); + iter(depth, &mut |expr| { + f(Expr::Block(ExprBlock { + // `{ $expr }` + attrs: Vec::new(), + label: None, + block: Block { + brace_token: token::Brace(span), + stmts: Vec::from([Stmt::Expr(expr.clone(), None)]), + }, + })); + f(Expr::Block(ExprBlock { + // `{ $expr; }` + attrs: Vec::new(), + label: None, + block: Block { + brace_token: token::Brace(span), + stmts: Vec::from([Stmt::Expr(expr, Some(Token))]), + }, + })); + }); + + // Expr::Break + f(Expr::Break(ExprBreak { + // `break 'a` + attrs: Vec::new(), + break_token: Token, + label: Some(Lifetime::new("'a", span)), + expr: None, + })); + iter(depth, &mut |expr| { + f(Expr::Break(ExprBreak { + // `break 'a $expr` + attrs: Vec::new(), + break_token: Token, + label: Some(Lifetime::new("'a", span)), + expr: Some(Box::new(expr)), + })); + }); + + // Expr::Closure + f(Expr::Closure(ExprClosure { + // `|| -> T {}` + attrs: Vec::new(), + lifetimes: None, + constness: None, + movability: None, + asyncness: None, + capture: None, + or1_token: Token, + inputs: Punctuated::new(), + or2_token: Token, + output: ReturnType::Type( + Token, + Box::new(Type::Path(TypePath { + qself: None, + path: Path::from(Ident::new("T", span)), + })), + ), + body: Box::new(Expr::Block(ExprBlock { + attrs: Vec::new(), + label: None, + block: Block { + brace_token: token::Brace(span), + stmts: Vec::new(), + }, + })), + })); + + // Expr::Const + f(Expr::Const(ExprConst { + // `const {}` + attrs: Vec::new(), + const_token: Token, + block: Block { + brace_token: token::Brace(span), + stmts: Vec::new(), + }, + })); + + // Expr::Continue + f(Expr::Continue(ExprContinue { + // `continue` + attrs: Vec::new(), + continue_token: Token, + label: None, + })); + f(Expr::Continue(ExprContinue { + // `continue 'a` + attrs: Vec::new(), + continue_token: Token, + label: Some(Lifetime::new("'a", span)), + })); + + // Expr::ForLoop + iter(depth, &mut |expr| { + f(Expr::ForLoop(ExprForLoop { + // `for _ in $expr {}` + attrs: Vec::new(), + label: None, + for_token: Token, + pat: Box::new(Pat::Wild(PatWild { + attrs: Vec::new(), + underscore_token: Token, + })), + in_token: Token, + expr: Box::new(expr.clone()), + body: Block { + brace_token: token::Brace(span), + stmts: Vec::new(), + }, + })); + f(Expr::ForLoop(ExprForLoop { + // `'a: for _ in $expr {}` + attrs: Vec::new(), + label: Some(Label { + name: Lifetime::new("'a", span), + colon_token: Token, + }), + for_token: Token, + pat: Box::new(Pat::Wild(PatWild { + attrs: Vec::new(), + underscore_token: Token, + })), + in_token: Token, + expr: Box::new(expr), + body: Block { + brace_token: token::Brace(span), + stmts: Vec::new(), + }, + })); + }); + + // Expr::Index + iter(depth, &mut |expr| { + f(Expr::Index(ExprIndex { + // `$expr[0]` + attrs: Vec::new(), + expr: Box::new(expr), + bracket_token: token::Bracket(span), + index: Box::new(Expr::Lit(ExprLit { + attrs: Vec::new(), + lit: Lit::Int(LitInt::new("0", span)), + })), + })); + }); + + // Expr::Loop + f(Expr::Loop(ExprLoop { + // `loop {}` + attrs: Vec::new(), + label: None, + loop_token: Token, + body: Block { + brace_token: token::Brace(span), + stmts: Vec::new(), + }, + })); + f(Expr::Loop(ExprLoop { + // `'a: loop {}` + attrs: Vec::new(), + label: Some(Label { + name: Lifetime::new("'a", span), + colon_token: Token, + }), + loop_token: Token, + body: Block { + brace_token: token::Brace(span), + stmts: Vec::new(), + }, + })); + + // Expr::Macro + f(Expr::Macro(ExprMacro { + // `m!()` + attrs: Vec::new(), + mac: Macro { + path: Path::from(Ident::new("m", span)), + bang_token: Token, + delimiter: MacroDelimiter::Paren(token::Paren(span)), + tokens: TokenStream::new(), + }, + })); + f(Expr::Macro(ExprMacro { + // `m! {}` + attrs: Vec::new(), + mac: Macro { + path: Path::from(Ident::new("m", span)), + bang_token: Token, + delimiter: MacroDelimiter::Brace(token::Brace(span)), + tokens: TokenStream::new(), + }, + })); + + // Expr::Match + iter(depth, &mut |expr| { + f(Expr::Match(ExprMatch { + // `match $expr {}` + attrs: Vec::new(), + match_token: Token, + expr: Box::new(expr.clone()), + brace_token: token::Brace(span), + arms: Vec::new(), + })); + f(Expr::Match(ExprMatch { + // `match x { _ => $expr }` + attrs: Vec::new(), + match_token: Token, + expr: Box::new(Expr::Path(ExprPath { + attrs: Vec::new(), + qself: None, + path: Path::from(Ident::new("x", span)), + })), + brace_token: token::Brace(span), + arms: Vec::from([Arm { + attrs: Vec::new(), + pat: Pat::Wild(PatWild { + attrs: Vec::new(), + underscore_token: Token, + }), + guard: None, + fat_arrow_token: Token, + body: Box::new(expr.clone()), + comma: None, + }]), + })); + f(Expr::Match(ExprMatch { + // `match x { _ if $expr => {} }` + attrs: Vec::new(), + match_token: Token, + expr: Box::new(Expr::Path(ExprPath { + attrs: Vec::new(), + qself: None, + path: Path::from(Ident::new("x", span)), + })), + brace_token: token::Brace(span), + arms: Vec::from([Arm { + attrs: Vec::new(), + pat: Pat::Wild(PatWild { + attrs: Vec::new(), + underscore_token: Token, + }), + guard: Some((Token, Box::new(expr))), + fat_arrow_token: Token, + body: Box::new(Expr::Block(ExprBlock { + attrs: Vec::new(), + label: None, + block: Block { + brace_token: token::Brace(span), + stmts: Vec::new(), + }, + })), + comma: None, + }]), + })); + }); + + // Expr::MethodCall + iter(depth, &mut |expr| { + f(Expr::MethodCall(ExprMethodCall { + // `$expr.method()` + attrs: Vec::new(), + receiver: Box::new(expr.clone()), + dot_token: Token, + method: Ident::new("method", span), + turbofish: None, + paren_token: token::Paren(span), + args: Punctuated::new(), + })); + f(Expr::MethodCall(ExprMethodCall { + // `$expr.method::<T>()` + attrs: Vec::new(), + receiver: Box::new(expr), + dot_token: Token, + method: Ident::new("method", span), + turbofish: Some(AngleBracketedGenericArguments { + colon2_token: Some(Token), + lt_token: Token, + args: Punctuated::from_iter([GenericArgument::Type(Type::Path( + TypePath { + qself: None, + path: Path::from(Ident::new("T", span)), + }, + ))]), + gt_token: Token, + }), + paren_token: token::Paren(span), + args: Punctuated::new(), + })); + }); + + // Expr::RawAddr + iter(depth, &mut |expr| { + f(Expr::RawAddr(ExprRawAddr { + // `&raw const $expr` + attrs: Vec::new(), + and_token: Token, + raw: Token, + mutability: PointerMutability::Const(Token), + expr: Box::new(expr), + })); + }); + + // Expr::Struct + f(Expr::Struct(ExprStruct { + // `Struct {}` + attrs: Vec::new(), + qself: None, + path: Path::from(Ident::new("Struct", span)), + brace_token: token::Brace(span), + fields: Punctuated::new(), + dot2_token: None, + rest: None, + })); + + // Expr::TryBlock + f(Expr::TryBlock(ExprTryBlock { + // `try {}` + attrs: Vec::new(), + try_token: Token, + block: Block { + brace_token: token::Brace(span), + stmts: Vec::new(), + }, + })); + + // Expr::Unsafe + f(Expr::Unsafe(ExprUnsafe { + // `unsafe {}` + attrs: Vec::new(), + unsafe_token: Token, + block: Block { + brace_token: token::Brace(span), + stmts: Vec::new(), + }, + })); + + // Expr::While + iter(depth, &mut |expr| { + f(Expr::While(ExprWhile { + // `while $expr {}` + attrs: Vec::new(), + label: None, + while_token: Token, + cond: Box::new(expr.clone()), + body: Block { + brace_token: token::Brace(span), + stmts: Vec::new(), + }, + })); + f(Expr::While(ExprWhile { + // `'a: while $expr {}` + attrs: Vec::new(), + label: Some(Label { + name: Lifetime::new("'a", span), + colon_token: Token, + }), + while_token: Token, + cond: Box::new(expr), + body: Block { + brace_token: token::Brace(span), + stmts: Vec::new(), + }, + })); + }); + + // Expr::Yield + f(Expr::Yield(ExprYield { + // `yield` + attrs: Vec::new(), + yield_token: Token, + expr: None, + })); + iter(depth, &mut |expr| { + f(Expr::Yield(ExprYield { + // `yield $expr` + attrs: Vec::new(), + yield_token: Token, + expr: Some(Box::new(expr)), + })); + }); + } + } + + let mut failures = 0; + macro_rules! fail { + ($($message:tt)*) => {{ + eprintln!($($message)*); + failures += 1; + return; + }}; + } + let mut assert = |mut original: Expr| { + let tokens = original.to_token_stream(); + let Ok(mut parsed) = syn::parse2::<Expr>(tokens.clone()) else { + fail!( + "failed to parse: {}\n{:#?}", + tokens, + crate::macros::debug::Lite(&original), + ); + }; + AsIfPrinted.visit_expr_mut(&mut original); + FlattenParens::combine_attrs().visit_expr_mut(&mut parsed); + if original != parsed { + fail!( + "before: {}\n{:#?}\nafter: {}\n{:#?}", + tokens, + crate::macros::debug::Lite(&original), + parsed.to_token_stream(), + crate::macros::debug::Lite(&parsed), + ); + } + let mut tokens_no_paren = tokens.clone(); + FlattenParens::visit_token_stream_mut(&mut tokens_no_paren); + if tokens.to_string() != tokens_no_paren.to_string() { + if let Ok(mut parsed2) = syn::parse2::<Expr>(tokens_no_paren) { + FlattenParens::combine_attrs().visit_expr_mut(&mut parsed2); + if original == parsed2 { + fail!("redundant parens: {}", tokens); + } + } + } + }; + + iter(4, &mut assert); + if failures > 0 { + eprintln!("FAILURES: {failures}"); + ExitCode::FAILURE + } else { + ExitCode::SUCCESS + } +} diff --git a/vendor/syn/tests/test_generics.rs b/vendor/syn/tests/test_generics.rs new file mode 100644 index 00000000..4dc183c0 --- /dev/null +++ b/vendor/syn/tests/test_generics.rs @@ -0,0 +1,284 @@ +#![allow( + clippy::elidable_lifetime_names, + clippy::manual_let_else, + clippy::needless_lifetimes, + clippy::too_many_lines, + clippy::uninlined_format_args +)] + +#[macro_use] +mod macros; + +use quote::quote; +use syn::{DeriveInput, ItemFn, TypeParamBound, WhereClause, WherePredicate}; + +#[test] +fn test_split_for_impl() { + let input = quote! { + struct S<'a, 'b: 'a, #[may_dangle] T: 'a = ()> where T: Debug; + }; + + snapshot!(input as DeriveInput, @r#" + DeriveInput { + vis: Visibility::Inherited, + ident: "S", + generics: Generics { + lt_token: Some, + params: [ + GenericParam::Lifetime(LifetimeParam { + lifetime: Lifetime { + ident: "a", + }, + }), + Token![,], + GenericParam::Lifetime(LifetimeParam { + lifetime: Lifetime { + ident: "b", + }, + colon_token: Some, + bounds: [ + Lifetime { + ident: "a", + }, + ], + }), + Token![,], + GenericParam::Type(TypeParam { + attrs: [ + Attribute { + style: AttrStyle::Outer, + meta: Meta::Path { + segments: [ + PathSegment { + ident: "may_dangle", + }, + ], + }, + }, + ], + ident: "T", + colon_token: Some, + bounds: [ + TypeParamBound::Lifetime { + ident: "a", + }, + ], + eq_token: Some, + default: Some(Type::Tuple), + }), + ], + gt_token: Some, + where_clause: Some(WhereClause { + predicates: [ + WherePredicate::Type(PredicateType { + bounded_ty: Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "T", + }, + ], + }, + }, + bounds: [ + TypeParamBound::Trait(TraitBound { + path: Path { + segments: [ + PathSegment { + ident: "Debug", + }, + ], + }, + }), + ], + }), + ], + }), + }, + data: Data::Struct { + fields: Fields::Unit, + semi_token: Some, + }, + } + "#); + + let generics = input.generics; + let (impl_generics, ty_generics, where_clause) = generics.split_for_impl(); + + let generated = quote! { + impl #impl_generics MyTrait for Test #ty_generics #where_clause {} + }; + let expected = quote! { + impl<'a, 'b: 'a, #[may_dangle] T: 'a> MyTrait + for Test<'a, 'b, T> + where + T: Debug + {} + }; + assert_eq!(generated.to_string(), expected.to_string()); + + let turbofish = ty_generics.as_turbofish(); + let generated = quote! { + Test #turbofish + }; + let expected = quote! { + Test::<'a, 'b, T> + }; + assert_eq!(generated.to_string(), expected.to_string()); +} + +#[test] +fn test_ty_param_bound() { + let tokens = quote!('a); + snapshot!(tokens as TypeParamBound, @r#" + TypeParamBound::Lifetime { + ident: "a", + } + "#); + + let tokens = quote!('_); + snapshot!(tokens as TypeParamBound, @r#" + TypeParamBound::Lifetime { + ident: "_", + } + "#); + + let tokens = quote!(Debug); + snapshot!(tokens as TypeParamBound, @r#" + TypeParamBound::Trait(TraitBound { + path: Path { + segments: [ + PathSegment { + ident: "Debug", + }, + ], + }, + }) + "#); + + let tokens = quote!(?Sized); + snapshot!(tokens as TypeParamBound, @r#" + TypeParamBound::Trait(TraitBound { + modifier: TraitBoundModifier::Maybe, + path: Path { + segments: [ + PathSegment { + ident: "Sized", + }, + ], + }, + }) + "#); +} + +#[test] +fn test_fn_precedence_in_where_clause() { + // This should parse as two separate bounds, `FnOnce() -> i32` and `Send` - not + // `FnOnce() -> (i32 + Send)`. + let input = quote! { + fn f<G>() + where + G: FnOnce() -> i32 + Send, + { + } + }; + + snapshot!(input as ItemFn, @r#" + ItemFn { + vis: Visibility::Inherited, + sig: Signature { + ident: "f", + generics: Generics { + lt_token: Some, + params: [ + GenericParam::Type(TypeParam { + ident: "G", + }), + ], + gt_token: Some, + where_clause: Some(WhereClause { + predicates: [ + WherePredicate::Type(PredicateType { + bounded_ty: Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "G", + }, + ], + }, + }, + bounds: [ + TypeParamBound::Trait(TraitBound { + path: Path { + segments: [ + PathSegment { + ident: "FnOnce", + arguments: PathArguments::Parenthesized { + output: ReturnType::Type( + Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "i32", + }, + ], + }, + }, + ), + }, + }, + ], + }, + }), + Token![+], + TypeParamBound::Trait(TraitBound { + path: Path { + segments: [ + PathSegment { + ident: "Send", + }, + ], + }, + }), + ], + }), + Token![,], + ], + }), + }, + output: ReturnType::Default, + }, + block: Block { + stmts: [], + }, + } + "#); + + let where_clause = input.sig.generics.where_clause.as_ref().unwrap(); + assert_eq!(where_clause.predicates.len(), 1); + + let predicate = match &where_clause.predicates[0] { + WherePredicate::Type(pred) => pred, + _ => panic!("wrong predicate kind"), + }; + + assert_eq!(predicate.bounds.len(), 2, "{:#?}", predicate.bounds); + + let first_bound = &predicate.bounds[0]; + assert_eq!(quote!(#first_bound).to_string(), "FnOnce () -> i32"); + + let second_bound = &predicate.bounds[1]; + assert_eq!(quote!(#second_bound).to_string(), "Send"); +} + +#[test] +fn test_where_clause_at_end_of_input() { + let input = quote! { + where + }; + + snapshot!(input as WhereClause, @"WhereClause"); + + assert_eq!(input.predicates.len(), 0); +} diff --git a/vendor/syn/tests/test_grouping.rs b/vendor/syn/tests/test_grouping.rs new file mode 100644 index 00000000..5d4b6291 --- /dev/null +++ b/vendor/syn/tests/test_grouping.rs @@ -0,0 +1,57 @@ +#![allow( + clippy::elidable_lifetime_names, + clippy::needless_lifetimes, + clippy::uninlined_format_args +)] + +#[macro_use] +mod macros; + +use proc_macro2::{Delimiter, Group, Literal, Punct, Spacing, TokenStream, TokenTree}; +use syn::Expr; + +#[test] +fn test_grouping() { + let tokens: TokenStream = TokenStream::from_iter([ + TokenTree::Literal(Literal::i32_suffixed(1)), + TokenTree::Punct(Punct::new('+', Spacing::Alone)), + TokenTree::Group(Group::new( + Delimiter::None, + TokenStream::from_iter([ + TokenTree::Literal(Literal::i32_suffixed(2)), + TokenTree::Punct(Punct::new('+', Spacing::Alone)), + TokenTree::Literal(Literal::i32_suffixed(3)), + ]), + )), + TokenTree::Punct(Punct::new('*', Spacing::Alone)), + TokenTree::Literal(Literal::i32_suffixed(4)), + ]); + + assert_eq!(tokens.to_string(), "1i32 + 2i32 + 3i32 * 4i32"); + + snapshot!(tokens as Expr, @r#" + Expr::Binary { + left: Expr::Lit { + lit: 1i32, + }, + op: BinOp::Add, + right: Expr::Binary { + left: Expr::Group { + expr: Expr::Binary { + left: Expr::Lit { + lit: 2i32, + }, + op: BinOp::Add, + right: Expr::Lit { + lit: 3i32, + }, + }, + }, + op: BinOp::Mul, + right: Expr::Lit { + lit: 4i32, + }, + }, + } + "#); +} diff --git a/vendor/syn/tests/test_ident.rs b/vendor/syn/tests/test_ident.rs new file mode 100644 index 00000000..10df0ad5 --- /dev/null +++ b/vendor/syn/tests/test_ident.rs @@ -0,0 +1,87 @@ +use proc_macro2::{Ident, Span, TokenStream}; +use std::str::FromStr; +use syn::Result; + +#[track_caller] +fn parse(s: &str) -> Result<Ident> { + syn::parse2(TokenStream::from_str(s).unwrap()) +} + +#[track_caller] +fn new(s: &str) -> Ident { + Ident::new(s, Span::call_site()) +} + +#[test] +fn ident_parse() { + parse("String").unwrap(); +} + +#[test] +fn ident_parse_keyword() { + parse("abstract").unwrap_err(); +} + +#[test] +fn ident_parse_empty() { + parse("").unwrap_err(); +} + +#[test] +fn ident_parse_lifetime() { + parse("'static").unwrap_err(); +} + +#[test] +fn ident_parse_underscore() { + parse("_").unwrap_err(); +} + +#[test] +fn ident_parse_number() { + parse("255").unwrap_err(); +} + +#[test] +fn ident_parse_invalid() { + parse("a#").unwrap_err(); +} + +#[test] +fn ident_new() { + new("String"); +} + +#[test] +fn ident_new_keyword() { + new("abstract"); +} + +#[test] +#[should_panic(expected = "use Option<Ident>")] +fn ident_new_empty() { + new(""); +} + +#[test] +#[should_panic(expected = "not a valid Ident")] +fn ident_new_lifetime() { + new("'static"); +} + +#[test] +fn ident_new_underscore() { + new("_"); +} + +#[test] +#[should_panic(expected = "use Literal instead")] +fn ident_new_number() { + new("255"); +} + +#[test] +#[should_panic(expected = "\"a#\" is not a valid Ident")] +fn ident_new_invalid() { + new("a#"); +} diff --git a/vendor/syn/tests/test_item.rs b/vendor/syn/tests/test_item.rs new file mode 100644 index 00000000..0a12b7aa --- /dev/null +++ b/vendor/syn/tests/test_item.rs @@ -0,0 +1,336 @@ +#![allow( + clippy::elidable_lifetime_names, + clippy::needless_lifetimes, + clippy::uninlined_format_args +)] + +#[macro_use] +mod macros; + +use proc_macro2::{Delimiter, Group, Ident, Span, TokenStream, TokenTree}; +use quote::quote; +use syn::{Item, ItemTrait}; + +#[test] +fn test_macro_variable_attr() { + // mimics the token stream corresponding to `$attr fn f() {}` + let tokens = TokenStream::from_iter([ + TokenTree::Group(Group::new(Delimiter::None, quote! { #[test] })), + TokenTree::Ident(Ident::new("fn", Span::call_site())), + TokenTree::Ident(Ident::new("f", Span::call_site())), + TokenTree::Group(Group::new(Delimiter::Parenthesis, TokenStream::new())), + TokenTree::Group(Group::new(Delimiter::Brace, TokenStream::new())), + ]); + + snapshot!(tokens as Item, @r#" + Item::Fn { + attrs: [ + Attribute { + style: AttrStyle::Outer, + meta: Meta::Path { + segments: [ + PathSegment { + ident: "test", + }, + ], + }, + }, + ], + vis: Visibility::Inherited, + sig: Signature { + ident: "f", + generics: Generics, + output: ReturnType::Default, + }, + block: Block { + stmts: [], + }, + } + "#); +} + +#[test] +fn test_negative_impl() { + // Rustc parses all of the following. + + #[cfg(any())] + impl ! {} + let tokens = quote! { + impl ! {} + }; + snapshot!(tokens as Item, @r#" + Item::Impl { + generics: Generics, + self_ty: Type::Never, + } + "#); + + #[cfg(any())] + #[rustfmt::skip] + impl !Trait {} + let tokens = quote! { + impl !Trait {} + }; + snapshot!(tokens as Item, @r#" + Item::Impl { + generics: Generics, + self_ty: Type::Verbatim(`! Trait`), + } + "#); + + #[cfg(any())] + impl !Trait for T {} + let tokens = quote! { + impl !Trait for T {} + }; + snapshot!(tokens as Item, @r#" + Item::Impl { + generics: Generics, + trait_: Some(( + Some, + Path { + segments: [ + PathSegment { + ident: "Trait", + }, + ], + }, + )), + self_ty: Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "T", + }, + ], + }, + }, + } + "#); + + #[cfg(any())] + #[rustfmt::skip] + impl !! {} + let tokens = quote! { + impl !! {} + }; + snapshot!(tokens as Item, @r#" + Item::Impl { + generics: Generics, + self_ty: Type::Verbatim(`! !`), + } + "#); +} + +#[test] +fn test_macro_variable_impl() { + // mimics the token stream corresponding to `impl $trait for $ty {}` + let tokens = TokenStream::from_iter([ + TokenTree::Ident(Ident::new("impl", Span::call_site())), + TokenTree::Group(Group::new(Delimiter::None, quote!(Trait))), + TokenTree::Ident(Ident::new("for", Span::call_site())), + TokenTree::Group(Group::new(Delimiter::None, quote!(Type))), + TokenTree::Group(Group::new(Delimiter::Brace, TokenStream::new())), + ]); + + snapshot!(tokens as Item, @r#" + Item::Impl { + generics: Generics, + trait_: Some(( + None, + Path { + segments: [ + PathSegment { + ident: "Trait", + }, + ], + }, + )), + self_ty: Type::Group { + elem: Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "Type", + }, + ], + }, + }, + }, + } + "#); +} + +#[test] +fn test_supertraits() { + // Rustc parses all of the following. + + #[rustfmt::skip] + let tokens = quote!(trait Trait where {}); + snapshot!(tokens as ItemTrait, @r#" + ItemTrait { + vis: Visibility::Inherited, + ident: "Trait", + generics: Generics { + where_clause: Some(WhereClause), + }, + } + "#); + + #[rustfmt::skip] + let tokens = quote!(trait Trait: where {}); + snapshot!(tokens as ItemTrait, @r#" + ItemTrait { + vis: Visibility::Inherited, + ident: "Trait", + generics: Generics { + where_clause: Some(WhereClause), + }, + colon_token: Some, + } + "#); + + #[rustfmt::skip] + let tokens = quote!(trait Trait: Sized where {}); + snapshot!(tokens as ItemTrait, @r#" + ItemTrait { + vis: Visibility::Inherited, + ident: "Trait", + generics: Generics { + where_clause: Some(WhereClause), + }, + colon_token: Some, + supertraits: [ + TypeParamBound::Trait(TraitBound { + path: Path { + segments: [ + PathSegment { + ident: "Sized", + }, + ], + }, + }), + ], + } + "#); + + #[rustfmt::skip] + let tokens = quote!(trait Trait: Sized + where {}); + snapshot!(tokens as ItemTrait, @r#" + ItemTrait { + vis: Visibility::Inherited, + ident: "Trait", + generics: Generics { + where_clause: Some(WhereClause), + }, + colon_token: Some, + supertraits: [ + TypeParamBound::Trait(TraitBound { + path: Path { + segments: [ + PathSegment { + ident: "Sized", + }, + ], + }, + }), + Token![+], + ], + } + "#); +} + +#[test] +fn test_type_empty_bounds() { + #[rustfmt::skip] + let tokens = quote! { + trait Foo { + type Bar: ; + } + }; + + snapshot!(tokens as ItemTrait, @r#" + ItemTrait { + vis: Visibility::Inherited, + ident: "Foo", + generics: Generics, + items: [ + TraitItem::Type { + ident: "Bar", + generics: Generics, + colon_token: Some, + }, + ], + } + "#); +} + +#[test] +fn test_impl_visibility() { + let tokens = quote! { + pub default unsafe impl union {} + }; + + snapshot!(tokens as Item, @"Item::Verbatim(`pub default unsafe impl union { }`)"); +} + +#[test] +fn test_impl_type_parameter_defaults() { + #[cfg(any())] + impl<T = ()> () {} + let tokens = quote! { + impl<T = ()> () {} + }; + snapshot!(tokens as Item, @r#" + Item::Impl { + generics: Generics { + lt_token: Some, + params: [ + GenericParam::Type(TypeParam { + ident: "T", + eq_token: Some, + default: Some(Type::Tuple), + }), + ], + gt_token: Some, + }, + self_ty: Type::Tuple, + } + "#); +} + +#[test] +fn test_impl_trait_trailing_plus() { + let tokens = quote! { + fn f() -> impl Sized + {} + }; + + snapshot!(tokens as Item, @r#" + Item::Fn { + vis: Visibility::Inherited, + sig: Signature { + ident: "f", + generics: Generics, + output: ReturnType::Type( + Type::ImplTrait { + bounds: [ + TypeParamBound::Trait(TraitBound { + path: Path { + segments: [ + PathSegment { + ident: "Sized", + }, + ], + }, + }), + Token![+], + ], + }, + ), + }, + block: Block { + stmts: [], + }, + } + "#); +} diff --git a/vendor/syn/tests/test_iterators.rs b/vendor/syn/tests/test_iterators.rs new file mode 100644 index 00000000..525d77b1 --- /dev/null +++ b/vendor/syn/tests/test_iterators.rs @@ -0,0 +1,94 @@ +#![allow( + clippy::elidable_lifetime_names, + clippy::map_unwrap_or, + clippy::needless_lifetimes, + clippy::uninlined_format_args +)] + +use syn::punctuated::{Pair, Punctuated}; +use syn::{parse_quote, GenericParam, Generics, Lifetime, LifetimeParam, Token}; + +#[macro_use] +mod macros; + +macro_rules! check_exact_size_iterator { + ($iter:expr) => {{ + let iter = $iter; + let size_hint = iter.size_hint(); + let len = iter.len(); + let count = iter.count(); + assert_eq!(len, count); + assert_eq!(size_hint, (count, Some(count))); + }}; +} + +#[test] +fn pairs() { + let mut p: Punctuated<_, Token![,]> = punctuated!(2, 3, 4); + + check_exact_size_iterator!(p.pairs()); + check_exact_size_iterator!(p.pairs_mut()); + check_exact_size_iterator!(p.into_pairs()); + + let mut p: Punctuated<_, Token![,]> = punctuated!(2, 3, 4); + + assert_eq!(p.pairs().next_back().map(Pair::into_value), Some(&4)); + assert_eq!( + p.pairs_mut().next_back().map(Pair::into_value), + Some(&mut 4) + ); + assert_eq!(p.into_pairs().next_back().map(Pair::into_value), Some(4)); +} + +#[test] +fn iter() { + let mut p: Punctuated<_, Token![,]> = punctuated!(2, 3, 4); + + check_exact_size_iterator!(p.iter()); + check_exact_size_iterator!(p.iter_mut()); + check_exact_size_iterator!(p.into_iter()); + + let mut p: Punctuated<_, Token![,]> = punctuated!(2, 3, 4); + + assert_eq!(p.iter().next_back(), Some(&4)); + assert_eq!(p.iter_mut().next_back(), Some(&mut 4)); + assert_eq!(p.into_iter().next_back(), Some(4)); +} + +#[test] +fn may_dangle() { + let p: Punctuated<_, Token![,]> = punctuated!(2, 3, 4); + for element in &p { + if *element == 2 { + drop(p); + break; + } + } + + let mut p: Punctuated<_, Token![,]> = punctuated!(2, 3, 4); + for element in &mut p { + if *element == 2 { + drop(p); + break; + } + } +} + +// Regression test for https://github.com/dtolnay/syn/issues/1718 +#[test] +fn no_opaque_drop() { + let mut generics = Generics::default(); + + let _ = generics + .lifetimes() + .next() + .map(|param| param.lifetime.clone()) + .unwrap_or_else(|| { + let lifetime: Lifetime = parse_quote!('a); + generics.params.insert( + 0, + GenericParam::Lifetime(LifetimeParam::new(lifetime.clone())), + ); + lifetime + }); +} diff --git a/vendor/syn/tests/test_lit.rs b/vendor/syn/tests/test_lit.rs new file mode 100644 index 00000000..6a7208a2 --- /dev/null +++ b/vendor/syn/tests/test_lit.rs @@ -0,0 +1,333 @@ +#![allow( + clippy::elidable_lifetime_names, + clippy::float_cmp, + clippy::needless_lifetimes, + clippy::needless_raw_string_hashes, + clippy::non_ascii_literal, + clippy::single_match_else, + clippy::uninlined_format_args +)] + +#[macro_use] +mod macros; + +use proc_macro2::{Delimiter, Group, Literal, Span, TokenStream, TokenTree}; +use quote::ToTokens; +use std::ffi::CStr; +use std::str::FromStr; +use syn::{Lit, LitFloat, LitInt, LitStr}; + +#[track_caller] +fn lit(s: &str) -> Lit { + let mut tokens = TokenStream::from_str(s).unwrap().into_iter(); + match tokens.next().unwrap() { + TokenTree::Literal(lit) => { + assert!(tokens.next().is_none()); + Lit::new(lit) + } + wrong => panic!("{:?}", wrong), + } +} + +#[test] +fn strings() { + #[track_caller] + fn test_string(s: &str, value: &str) { + let s = s.trim(); + match lit(s) { + Lit::Str(lit) => { + assert_eq!(lit.value(), value); + let again = lit.into_token_stream().to_string(); + if again != s { + test_string(&again, value); + } + } + wrong => panic!("{:?}", wrong), + } + } + + test_string(r#" "" "#, ""); + test_string(r#" "a" "#, "a"); + test_string(r#" "\n" "#, "\n"); + test_string(r#" "\r" "#, "\r"); + test_string(r#" "\t" "#, "\t"); + test_string(r#" "🐕" "#, "🐕"); // NOTE: This is an emoji + test_string(r#" "\"" "#, "\""); + test_string(r#" "'" "#, "'"); + test_string(r#" "\u{1F415}" "#, "\u{1F415}"); + test_string(r#" "\u{1_2__3_}" "#, "\u{123}"); + test_string( + "\"contains\nnewlines\\\nescaped newlines\"", + "contains\nnewlinesescaped newlines", + ); + test_string( + "\"escaped newline\\\n \x0C unsupported whitespace\"", + "escaped newline\x0C unsupported whitespace", + ); + test_string("r\"raw\nstring\\\nhere\"", "raw\nstring\\\nhere"); + test_string("\"...\"q", "..."); + test_string("r\"...\"q", "..."); + test_string("r##\"...\"##q", "..."); +} + +#[test] +fn byte_strings() { + #[track_caller] + fn test_byte_string(s: &str, value: &[u8]) { + let s = s.trim(); + match lit(s) { + Lit::ByteStr(lit) => { + assert_eq!(lit.value(), value); + let again = lit.into_token_stream().to_string(); + if again != s { + test_byte_string(&again, value); + } + } + wrong => panic!("{:?}", wrong), + } + } + + test_byte_string(r#" b"" "#, b""); + test_byte_string(r#" b"a" "#, b"a"); + test_byte_string(r#" b"\n" "#, b"\n"); + test_byte_string(r#" b"\r" "#, b"\r"); + test_byte_string(r#" b"\t" "#, b"\t"); + test_byte_string(r#" b"\"" "#, b"\""); + test_byte_string(r#" b"'" "#, b"'"); + test_byte_string( + "b\"contains\nnewlines\\\nescaped newlines\"", + b"contains\nnewlinesescaped newlines", + ); + test_byte_string("br\"raw\nstring\\\nhere\"", b"raw\nstring\\\nhere"); + test_byte_string("b\"...\"q", b"..."); + test_byte_string("br\"...\"q", b"..."); + test_byte_string("br##\"...\"##q", b"..."); +} + +#[test] +fn c_strings() { + #[track_caller] + fn test_c_string(s: &str, value: &CStr) { + let s = s.trim(); + match lit(s) { + Lit::CStr(lit) => { + assert_eq!(*lit.value(), *value); + let again = lit.into_token_stream().to_string(); + if again != s { + test_c_string(&again, value); + } + } + wrong => panic!("{:?}", wrong), + } + } + + test_c_string(r#" c"" "#, c""); + test_c_string(r#" c"a" "#, c"a"); + test_c_string(r#" c"\n" "#, c"\n"); + test_c_string(r#" c"\r" "#, c"\r"); + test_c_string(r#" c"\t" "#, c"\t"); + test_c_string(r#" c"\\" "#, c"\\"); + test_c_string(r#" c"\'" "#, c"'"); + test_c_string(r#" c"\"" "#, c"\""); + test_c_string( + "c\"contains\nnewlines\\\nescaped newlines\"", + c"contains\nnewlinesescaped newlines", + ); + test_c_string("cr\"raw\nstring\\\nhere\"", c"raw\nstring\\\nhere"); + test_c_string("c\"...\"q", c"..."); + test_c_string("cr\"...\"", c"..."); + test_c_string("cr##\"...\"##", c"..."); + test_c_string( + r#" c"hello\x80我叫\u{1F980}" "#, // from the RFC + c"hello\x80我叫\u{1F980}", + ); +} + +#[test] +fn bytes() { + #[track_caller] + fn test_byte(s: &str, value: u8) { + let s = s.trim(); + match lit(s) { + Lit::Byte(lit) => { + assert_eq!(lit.value(), value); + let again = lit.into_token_stream().to_string(); + assert_eq!(again, s); + } + wrong => panic!("{:?}", wrong), + } + } + + test_byte(r#" b'a' "#, b'a'); + test_byte(r#" b'\n' "#, b'\n'); + test_byte(r#" b'\r' "#, b'\r'); + test_byte(r#" b'\t' "#, b'\t'); + test_byte(r#" b'\'' "#, b'\''); + test_byte(r#" b'"' "#, b'"'); + test_byte(r#" b'a'q "#, b'a'); +} + +#[test] +fn chars() { + #[track_caller] + fn test_char(s: &str, value: char) { + let s = s.trim(); + match lit(s) { + Lit::Char(lit) => { + assert_eq!(lit.value(), value); + let again = lit.into_token_stream().to_string(); + if again != s { + test_char(&again, value); + } + } + wrong => panic!("{:?}", wrong), + } + } + + test_char(r#" 'a' "#, 'a'); + test_char(r#" '\n' "#, '\n'); + test_char(r#" '\r' "#, '\r'); + test_char(r#" '\t' "#, '\t'); + test_char(r#" '🐕' "#, '🐕'); // NOTE: This is an emoji + test_char(r#" '\'' "#, '\''); + test_char(r#" '"' "#, '"'); + test_char(r#" '\u{1F415}' "#, '\u{1F415}'); + test_char(r#" 'a'q "#, 'a'); +} + +#[test] +fn ints() { + #[track_caller] + fn test_int(s: &str, value: u64, suffix: &str) { + match lit(s) { + Lit::Int(lit) => { + assert_eq!(lit.base10_digits().parse::<u64>().unwrap(), value); + assert_eq!(lit.suffix(), suffix); + let again = lit.into_token_stream().to_string(); + if again != s { + test_int(&again, value, suffix); + } + } + wrong => panic!("{:?}", wrong), + } + } + + test_int("5", 5, ""); + test_int("5u32", 5, "u32"); + test_int("0E", 0, "E"); + test_int("0ECMA", 0, "ECMA"); + test_int("0o0A", 0, "A"); + test_int("5_0", 50, ""); + test_int("5_____0_____", 50, ""); + test_int("0x7f", 127, ""); + test_int("0x7F", 127, ""); + test_int("0b1001", 9, ""); + test_int("0o73", 59, ""); + test_int("0x7Fu8", 127, "u8"); + test_int("0b1001i8", 9, "i8"); + test_int("0o73u32", 59, "u32"); + test_int("0x__7___f_", 127, ""); + test_int("0x__7___F_", 127, ""); + test_int("0b_1_0__01", 9, ""); + test_int("0o_7__3", 59, ""); + test_int("0x_7F__u8", 127, "u8"); + test_int("0b__10__0_1i8", 9, "i8"); + test_int("0o__7__________________3u32", 59, "u32"); + test_int("0e1\u{5c5}", 0, "e1\u{5c5}"); +} + +#[test] +fn floats() { + #[track_caller] + fn test_float(s: &str, value: f64, suffix: &str) { + match lit(s) { + Lit::Float(lit) => { + assert_eq!(lit.base10_digits().parse::<f64>().unwrap(), value); + assert_eq!(lit.suffix(), suffix); + let again = lit.into_token_stream().to_string(); + if again != s { + test_float(&again, value, suffix); + } + } + wrong => panic!("{:?}", wrong), + } + } + + test_float("5.5", 5.5, ""); + test_float("5.5E12", 5.5e12, ""); + test_float("5.5e12", 5.5e12, ""); + test_float("1.0__3e-12", 1.03e-12, ""); + test_float("1.03e+12", 1.03e12, ""); + test_float("9e99e99", 9e99, "e99"); + test_float("1e_0", 1.0, ""); + test_float("0.0ECMA", 0.0, "ECMA"); +} + +#[test] +fn negative() { + let span = Span::call_site(); + assert_eq!("-1", LitInt::new("-1", span).to_string()); + assert_eq!("-1i8", LitInt::new("-1i8", span).to_string()); + assert_eq!("-1i16", LitInt::new("-1i16", span).to_string()); + assert_eq!("-1i32", LitInt::new("-1i32", span).to_string()); + assert_eq!("-1i64", LitInt::new("-1i64", span).to_string()); + assert_eq!("-1.5", LitFloat::new("-1.5", span).to_string()); + assert_eq!("-1.5f32", LitFloat::new("-1.5f32", span).to_string()); + assert_eq!("-1.5f64", LitFloat::new("-1.5f64", span).to_string()); +} + +#[test] +fn suffix() { + #[track_caller] + fn get_suffix(token: &str) -> String { + let lit = syn::parse_str::<Lit>(token).unwrap(); + match lit { + Lit::Str(lit) => lit.suffix().to_owned(), + Lit::ByteStr(lit) => lit.suffix().to_owned(), + Lit::CStr(lit) => lit.suffix().to_owned(), + Lit::Byte(lit) => lit.suffix().to_owned(), + Lit::Char(lit) => lit.suffix().to_owned(), + Lit::Int(lit) => lit.suffix().to_owned(), + Lit::Float(lit) => lit.suffix().to_owned(), + _ => unimplemented!(), + } + } + + assert_eq!(get_suffix("\"\"s"), "s"); + assert_eq!(get_suffix("r\"\"r"), "r"); + assert_eq!(get_suffix("r#\"\"#r"), "r"); + assert_eq!(get_suffix("b\"\"b"), "b"); + assert_eq!(get_suffix("br\"\"br"), "br"); + assert_eq!(get_suffix("br#\"\"#br"), "br"); + assert_eq!(get_suffix("c\"\"c"), "c"); + assert_eq!(get_suffix("cr\"\"cr"), "cr"); + assert_eq!(get_suffix("cr#\"\"#cr"), "cr"); + assert_eq!(get_suffix("'c'c"), "c"); + assert_eq!(get_suffix("b'b'b"), "b"); + assert_eq!(get_suffix("1i32"), "i32"); + assert_eq!(get_suffix("1_i32"), "i32"); + assert_eq!(get_suffix("1.0f32"), "f32"); + assert_eq!(get_suffix("1.0_f32"), "f32"); +} + +#[test] +fn test_deep_group_empty() { + let tokens = TokenStream::from_iter([TokenTree::Group(Group::new( + Delimiter::None, + TokenStream::from_iter([TokenTree::Group(Group::new( + Delimiter::None, + TokenStream::from_iter([TokenTree::Literal(Literal::string("hi"))]), + ))]), + ))]); + + snapshot!(tokens as Lit, @r#""hi""# ); +} + +#[test] +fn test_error() { + let err = syn::parse_str::<LitStr>("...").unwrap_err(); + assert_eq!("expected string literal", err.to_string()); + + let err = syn::parse_str::<LitStr>("5").unwrap_err(); + assert_eq!("expected string literal", err.to_string()); +} diff --git a/vendor/syn/tests/test_meta.rs b/vendor/syn/tests/test_meta.rs new file mode 100644 index 00000000..519b3ecf --- /dev/null +++ b/vendor/syn/tests/test_meta.rs @@ -0,0 +1,156 @@ +#![allow( + clippy::elidable_lifetime_names, + clippy::needless_lifetimes, + clippy::shadow_unrelated, + clippy::too_many_lines, + clippy::uninlined_format_args +)] + +#[macro_use] +mod macros; + +use syn::{Meta, MetaList, MetaNameValue}; + +#[test] +fn test_parse_meta_item_word() { + let input = "hello"; + + snapshot!(input as Meta, @r#" + Meta::Path { + segments: [ + PathSegment { + ident: "hello", + }, + ], + } + "#); +} + +#[test] +fn test_parse_meta_name_value() { + let input = "foo = 5"; + let (inner, meta) = (input, input); + + snapshot!(inner as MetaNameValue, @r#" + MetaNameValue { + path: Path { + segments: [ + PathSegment { + ident: "foo", + }, + ], + }, + value: Expr::Lit { + lit: 5, + }, + } + "#); + + snapshot!(meta as Meta, @r#" + Meta::NameValue { + path: Path { + segments: [ + PathSegment { + ident: "foo", + }, + ], + }, + value: Expr::Lit { + lit: 5, + }, + } + "#); + + assert_eq!(meta, Meta::NameValue(inner)); +} + +#[test] +fn test_parse_meta_item_list_lit() { + let input = "foo(5)"; + let (inner, meta) = (input, input); + + snapshot!(inner as MetaList, @r#" + MetaList { + path: Path { + segments: [ + PathSegment { + ident: "foo", + }, + ], + }, + delimiter: MacroDelimiter::Paren, + tokens: TokenStream(`5`), + } + "#); + + snapshot!(meta as Meta, @r#" + Meta::List { + path: Path { + segments: [ + PathSegment { + ident: "foo", + }, + ], + }, + delimiter: MacroDelimiter::Paren, + tokens: TokenStream(`5`), + } + "#); + + assert_eq!(meta, Meta::List(inner)); +} + +#[test] +fn test_parse_meta_item_multiple() { + let input = "foo(word, name = 5, list(name2 = 6), word2)"; + let (inner, meta) = (input, input); + + snapshot!(inner as MetaList, @r#" + MetaList { + path: Path { + segments: [ + PathSegment { + ident: "foo", + }, + ], + }, + delimiter: MacroDelimiter::Paren, + tokens: TokenStream(`word , name = 5 , list (name2 = 6) , word2`), + } + "#); + + snapshot!(meta as Meta, @r#" + Meta::List { + path: Path { + segments: [ + PathSegment { + ident: "foo", + }, + ], + }, + delimiter: MacroDelimiter::Paren, + tokens: TokenStream(`word , name = 5 , list (name2 = 6) , word2`), + } + "#); + + assert_eq!(meta, Meta::List(inner)); +} + +#[test] +fn test_parse_path() { + let input = "::serde::Serialize"; + snapshot!(input as Meta, @r#" + Meta::Path { + leading_colon: Some, + segments: [ + PathSegment { + ident: "serde", + }, + Token![::], + PathSegment { + ident: "Serialize", + }, + ], + } + "#); +} diff --git a/vendor/syn/tests/test_parse_buffer.rs b/vendor/syn/tests/test_parse_buffer.rs new file mode 100644 index 00000000..62abc6d2 --- /dev/null +++ b/vendor/syn/tests/test_parse_buffer.rs @@ -0,0 +1,103 @@ +#![allow(clippy::non_ascii_literal)] + +use proc_macro2::{Delimiter, Group, Ident, Punct, Spacing, TokenStream, TokenTree}; +use std::panic; +use syn::parse::discouraged::Speculative as _; +use syn::parse::{Parse, ParseStream, Parser, Result}; +use syn::{parenthesized, Token}; + +#[test] +#[should_panic(expected = "fork was not derived from the advancing parse stream")] +fn smuggled_speculative_cursor_between_sources() { + struct BreakRules; + impl Parse for BreakRules { + fn parse(input1: ParseStream) -> Result<Self> { + let nested = |input2: ParseStream| { + input1.advance_to(input2); + Ok(Self) + }; + nested.parse_str("") + } + } + + syn::parse_str::<BreakRules>("").unwrap(); +} + +#[test] +#[should_panic(expected = "fork was not derived from the advancing parse stream")] +fn smuggled_speculative_cursor_between_brackets() { + struct BreakRules; + impl Parse for BreakRules { + fn parse(input: ParseStream) -> Result<Self> { + let a; + let b; + parenthesized!(a in input); + parenthesized!(b in input); + a.advance_to(&b); + Ok(Self) + } + } + + syn::parse_str::<BreakRules>("()()").unwrap(); +} + +#[test] +#[should_panic(expected = "fork was not derived from the advancing parse stream")] +fn smuggled_speculative_cursor_into_brackets() { + struct BreakRules; + impl Parse for BreakRules { + fn parse(input: ParseStream) -> Result<Self> { + let a; + parenthesized!(a in input); + input.advance_to(&a); + Ok(Self) + } + } + + syn::parse_str::<BreakRules>("()").unwrap(); +} + +#[test] +fn trailing_empty_none_group() { + fn parse(input: ParseStream) -> Result<()> { + input.parse::<Token![+]>()?; + + let content; + parenthesized!(content in input); + content.parse::<Token![+]>()?; + + Ok(()) + } + + // `+ ( + «∅ ∅» ) «∅ «∅ ∅» ∅»` + let tokens = TokenStream::from_iter([ + TokenTree::Punct(Punct::new('+', Spacing::Alone)), + TokenTree::Group(Group::new( + Delimiter::Parenthesis, + TokenStream::from_iter([ + TokenTree::Punct(Punct::new('+', Spacing::Alone)), + TokenTree::Group(Group::new(Delimiter::None, TokenStream::new())), + ]), + )), + TokenTree::Group(Group::new(Delimiter::None, TokenStream::new())), + TokenTree::Group(Group::new( + Delimiter::None, + TokenStream::from_iter([TokenTree::Group(Group::new( + Delimiter::None, + TokenStream::new(), + ))]), + )), + ]); + + parse.parse2(tokens).unwrap(); +} + +#[test] +fn test_unwind_safe() { + fn parse(input: ParseStream) -> Result<Ident> { + let thread_result = panic::catch_unwind(|| input.parse()); + thread_result.unwrap() + } + + parse.parse_str("throw").unwrap(); +} diff --git a/vendor/syn/tests/test_parse_quote.rs b/vendor/syn/tests/test_parse_quote.rs new file mode 100644 index 00000000..33665e06 --- /dev/null +++ b/vendor/syn/tests/test_parse_quote.rs @@ -0,0 +1,170 @@ +#![allow( + clippy::elidable_lifetime_names, + clippy::needless_lifetimes, + clippy::uninlined_format_args +)] + +#[macro_use] +mod macros; + +use syn::punctuated::Punctuated; +use syn::{parse_quote, Attribute, Field, Lit, Pat, Stmt, Token}; + +#[test] +fn test_attribute() { + let attr: Attribute = parse_quote!(#[test]); + snapshot!(attr, @r#" + Attribute { + style: AttrStyle::Outer, + meta: Meta::Path { + segments: [ + PathSegment { + ident: "test", + }, + ], + }, + } + "#); + + let attr: Attribute = parse_quote!(#![no_std]); + snapshot!(attr, @r#" + Attribute { + style: AttrStyle::Inner, + meta: Meta::Path { + segments: [ + PathSegment { + ident: "no_std", + }, + ], + }, + } + "#); +} + +#[test] +fn test_field() { + let field: Field = parse_quote!(pub enabled: bool); + snapshot!(field, @r#" + Field { + vis: Visibility::Public, + ident: Some("enabled"), + colon_token: Some, + ty: Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "bool", + }, + ], + }, + }, + } + "#); + + let field: Field = parse_quote!(primitive::bool); + snapshot!(field, @r#" + Field { + vis: Visibility::Inherited, + ty: Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "primitive", + }, + Token![::], + PathSegment { + ident: "bool", + }, + ], + }, + }, + } + "#); +} + +#[test] +fn test_pat() { + let pat: Pat = parse_quote!(Some(false) | None); + snapshot!(&pat, @r#" + Pat::Or { + cases: [ + Pat::TupleStruct { + path: Path { + segments: [ + PathSegment { + ident: "Some", + }, + ], + }, + elems: [ + Pat::Lit(ExprLit { + lit: Lit::Bool { + value: false, + }, + }), + ], + }, + Token![|], + Pat::Ident { + ident: "None", + }, + ], + } + "#); + + let boxed_pat: Box<Pat> = parse_quote!(Some(false) | None); + assert_eq!(*boxed_pat, pat); +} + +#[test] +fn test_punctuated() { + let punctuated: Punctuated<Lit, Token![|]> = parse_quote!(true | true); + snapshot!(punctuated, @r#" + [ + Lit::Bool { + value: true, + }, + Token![|], + Lit::Bool { + value: true, + }, + ] + "#); + + let punctuated: Punctuated<Lit, Token![|]> = parse_quote!(true | true |); + snapshot!(punctuated, @r#" + [ + Lit::Bool { + value: true, + }, + Token![|], + Lit::Bool { + value: true, + }, + Token![|], + ] + "#); +} + +#[test] +fn test_vec_stmt() { + let stmts: Vec<Stmt> = parse_quote! { + let _; + true + }; + snapshot!(stmts, @r#" + [ + Stmt::Local { + pat: Pat::Wild, + }, + Stmt::Expr( + Expr::Lit { + lit: Lit::Bool { + value: true, + }, + }, + None, + ), + ] + "#); +} diff --git a/vendor/syn/tests/test_parse_stream.rs b/vendor/syn/tests/test_parse_stream.rs new file mode 100644 index 00000000..a650fc85 --- /dev/null +++ b/vendor/syn/tests/test_parse_stream.rs @@ -0,0 +1,187 @@ +#![allow(clippy::items_after_statements, clippy::let_underscore_untyped)] + +use proc_macro2::{Delimiter, Group, Punct, Spacing, Span, TokenStream, TokenTree}; +use quote::quote; +use syn::ext::IdentExt as _; +use syn::parse::discouraged::AnyDelimiter; +use syn::parse::{ParseStream, Parser as _, Result}; +use syn::{parenthesized, token, Ident, Lifetime, Token}; + +#[test] +fn test_peek_punct() { + let tokens = quote!(+= + =); + + fn assert(input: ParseStream) -> Result<()> { + assert!(input.peek(Token![+])); + assert!(input.peek(Token![+=])); + + let _: Token![+] = input.parse()?; + + assert!(input.peek(Token![=])); + assert!(!input.peek(Token![==])); + assert!(!input.peek(Token![+])); + + let _: Token![=] = input.parse()?; + + assert!(input.peek(Token![+])); + assert!(!input.peek(Token![+=])); + + let _: Token![+] = input.parse()?; + let _: Token![=] = input.parse()?; + Ok(()) + } + + assert.parse2(tokens).unwrap(); +} + +#[test] +fn test_peek_lifetime() { + // 'static ; + let tokens = TokenStream::from_iter([ + TokenTree::Punct(Punct::new('\'', Spacing::Joint)), + TokenTree::Ident(Ident::new("static", Span::call_site())), + TokenTree::Punct(Punct::new(';', Spacing::Alone)), + ]); + + fn assert(input: ParseStream) -> Result<()> { + assert!(input.peek(Lifetime)); + assert!(input.peek2(Token![;])); + assert!(!input.peek2(Token![static])); + + let _: Lifetime = input.parse()?; + + assert!(input.peek(Token![;])); + + let _: Token![;] = input.parse()?; + Ok(()) + } + + assert.parse2(tokens).unwrap(); +} + +#[test] +fn test_peek_not_lifetime() { + // ' static + let tokens = TokenStream::from_iter([ + TokenTree::Punct(Punct::new('\'', Spacing::Alone)), + TokenTree::Ident(Ident::new("static", Span::call_site())), + ]); + + fn assert(input: ParseStream) -> Result<()> { + assert!(!input.peek(Lifetime)); + assert!(input.parse::<Option<Punct>>()?.is_none()); + + let _: TokenTree = input.parse()?; + + assert!(input.peek(Token![static])); + + let _: Token![static] = input.parse()?; + Ok(()) + } + + assert.parse2(tokens).unwrap(); +} + +#[test] +fn test_peek_ident() { + let tokens = quote!(static var); + + fn assert(input: ParseStream) -> Result<()> { + assert!(!input.peek(Ident)); + assert!(input.peek(Ident::peek_any)); + assert!(input.peek(Token![static])); + + let _: Token![static] = input.parse()?; + + assert!(input.peek(Ident)); + assert!(input.peek(Ident::peek_any)); + + let _: Ident = input.parse()?; + Ok(()) + } + + assert.parse2(tokens).unwrap(); +} + +#[test] +fn test_peek_groups() { + // pub ( :: ) «∅ ! = ∅» static + let tokens = TokenStream::from_iter([ + TokenTree::Ident(Ident::new("pub", Span::call_site())), + TokenTree::Group(Group::new( + Delimiter::Parenthesis, + TokenStream::from_iter([ + TokenTree::Punct(Punct::new(':', Spacing::Joint)), + TokenTree::Punct(Punct::new(':', Spacing::Alone)), + ]), + )), + TokenTree::Group(Group::new( + Delimiter::None, + TokenStream::from_iter([ + TokenTree::Punct(Punct::new('!', Spacing::Alone)), + TokenTree::Punct(Punct::new('=', Spacing::Alone)), + ]), + )), + TokenTree::Ident(Ident::new("static", Span::call_site())), + ]); + + fn assert(input: ParseStream) -> Result<()> { + assert!(input.peek2(token::Paren)); + assert!(input.peek3(token::Group)); + assert!(input.peek3(Token![!])); + + let _: Token![pub] = input.parse()?; + + assert!(input.peek(token::Paren)); + assert!(!input.peek(Token![::])); + assert!(!input.peek2(Token![::])); + assert!(input.peek2(Token![!])); + assert!(input.peek2(token::Group)); + assert!(input.peek3(Token![=])); + assert!(!input.peek3(Token![static])); + + let content; + parenthesized!(content in input); + + assert!(content.peek(Token![::])); + assert!(content.peek2(Token![:])); + assert!(!content.peek3(token::Group)); + assert!(!content.peek3(Token![!])); + + assert!(input.peek(token::Group)); + assert!(input.peek(Token![!])); + + let _: Token![::] = content.parse()?; + + assert!(input.peek(token::Group)); + assert!(input.peek(Token![!])); + assert!(input.peek2(Token![=])); + assert!(input.peek3(Token![static])); + assert!(!input.peek2(Token![static])); + + let implicit = input.fork(); + let explicit = input.fork(); + + let _: Token![!] = implicit.parse()?; + assert!(implicit.peek(Token![=])); + assert!(implicit.peek2(Token![static])); + let _: Token![=] = implicit.parse()?; + assert!(implicit.peek(Token![static])); + + let (delimiter, _span, grouped) = explicit.parse_any_delimiter()?; + assert_eq!(delimiter, Delimiter::None); + assert!(grouped.peek(Token![!])); + assert!(grouped.peek2(Token![=])); + assert!(!grouped.peek3(Token![static])); + let _: Token![!] = grouped.parse()?; + assert!(grouped.peek(Token![=])); + assert!(!grouped.peek2(Token![static])); + let _: Token![=] = grouped.parse()?; + assert!(!grouped.peek(Token![static])); + + let _: TokenStream = input.parse()?; + Ok(()) + } + + assert.parse2(tokens).unwrap(); +} diff --git a/vendor/syn/tests/test_pat.rs b/vendor/syn/tests/test_pat.rs new file mode 100644 index 00000000..615de6a1 --- /dev/null +++ b/vendor/syn/tests/test_pat.rs @@ -0,0 +1,156 @@ +#![allow( + clippy::elidable_lifetime_names, + clippy::needless_lifetimes, + clippy::uninlined_format_args +)] + +#[macro_use] +mod macros; + +use proc_macro2::{Delimiter, Group, TokenStream, TokenTree}; +use quote::{quote, ToTokens as _}; +use syn::parse::Parser; +use syn::punctuated::Punctuated; +use syn::{parse_quote, token, Item, Pat, PatTuple, Stmt, Token}; + +#[test] +fn test_pat_ident() { + match Pat::parse_single.parse2(quote!(self)).unwrap() { + Pat::Ident(_) => (), + value => panic!("expected PatIdent, got {:?}", value), + } +} + +#[test] +fn test_pat_path() { + match Pat::parse_single.parse2(quote!(self::CONST)).unwrap() { + Pat::Path(_) => (), + value => panic!("expected PatPath, got {:?}", value), + } +} + +#[test] +fn test_leading_vert() { + // https://github.com/rust-lang/rust/blob/1.43.0/src/test/ui/or-patterns/remove-leading-vert.rs + + syn::parse_str::<Item>("fn f() {}").unwrap(); + syn::parse_str::<Item>("fn fun1(| A: E) {}").unwrap_err(); + syn::parse_str::<Item>("fn fun2(|| A: E) {}").unwrap_err(); + + syn::parse_str::<Stmt>("let | () = ();").unwrap_err(); + syn::parse_str::<Stmt>("let (| A): E;").unwrap(); + syn::parse_str::<Stmt>("let (|| A): (E);").unwrap_err(); + syn::parse_str::<Stmt>("let (| A,): (E,);").unwrap(); + syn::parse_str::<Stmt>("let [| A]: [E; 1];").unwrap(); + syn::parse_str::<Stmt>("let [|| A]: [E; 1];").unwrap_err(); + syn::parse_str::<Stmt>("let TS(| A): TS;").unwrap(); + syn::parse_str::<Stmt>("let TS(|| A): TS;").unwrap_err(); + syn::parse_str::<Stmt>("let NS { f: | A }: NS;").unwrap(); + syn::parse_str::<Stmt>("let NS { f: || A }: NS;").unwrap_err(); +} + +#[test] +fn test_group() { + let group = Group::new(Delimiter::None, quote!(Some(_))); + let tokens = TokenStream::from_iter([TokenTree::Group(group)]); + let pat = Pat::parse_single.parse2(tokens).unwrap(); + + snapshot!(pat, @r#" + Pat::TupleStruct { + path: Path { + segments: [ + PathSegment { + ident: "Some", + }, + ], + }, + elems: [ + Pat::Wild, + ], + } + "#); +} + +#[test] +fn test_ranges() { + Pat::parse_single.parse_str("..").unwrap(); + Pat::parse_single.parse_str("..hi").unwrap(); + Pat::parse_single.parse_str("lo..").unwrap(); + Pat::parse_single.parse_str("lo..hi").unwrap(); + + Pat::parse_single.parse_str("..=").unwrap_err(); + Pat::parse_single.parse_str("..=hi").unwrap(); + Pat::parse_single.parse_str("lo..=").unwrap_err(); + Pat::parse_single.parse_str("lo..=hi").unwrap(); + + Pat::parse_single.parse_str("...").unwrap_err(); + Pat::parse_single.parse_str("...hi").unwrap_err(); + Pat::parse_single.parse_str("lo...").unwrap_err(); + Pat::parse_single.parse_str("lo...hi").unwrap(); + + Pat::parse_single.parse_str("[lo..]").unwrap_err(); + Pat::parse_single.parse_str("[..=hi]").unwrap_err(); + Pat::parse_single.parse_str("[(lo..)]").unwrap(); + Pat::parse_single.parse_str("[(..=hi)]").unwrap(); + Pat::parse_single.parse_str("[lo..=hi]").unwrap(); + + Pat::parse_single.parse_str("[_, lo.., _]").unwrap_err(); + Pat::parse_single.parse_str("[_, ..=hi, _]").unwrap_err(); + Pat::parse_single.parse_str("[_, (lo..), _]").unwrap(); + Pat::parse_single.parse_str("[_, (..=hi), _]").unwrap(); + Pat::parse_single.parse_str("[_, lo..=hi, _]").unwrap(); +} + +#[test] +fn test_tuple_comma() { + let mut expr = PatTuple { + attrs: Vec::new(), + paren_token: token::Paren::default(), + elems: Punctuated::new(), + }; + snapshot!(expr.to_token_stream() as Pat, @"Pat::Tuple"); + + expr.elems.push_value(parse_quote!(_)); + // Must not parse to Pat::Paren + snapshot!(expr.to_token_stream() as Pat, @r#" + Pat::Tuple { + elems: [ + Pat::Wild, + Token![,], + ], + } + "#); + + expr.elems.push_punct(<Token![,]>::default()); + snapshot!(expr.to_token_stream() as Pat, @r#" + Pat::Tuple { + elems: [ + Pat::Wild, + Token![,], + ], + } + "#); + + expr.elems.push_value(parse_quote!(_)); + snapshot!(expr.to_token_stream() as Pat, @r#" + Pat::Tuple { + elems: [ + Pat::Wild, + Token![,], + Pat::Wild, + ], + } + "#); + + expr.elems.push_punct(<Token![,]>::default()); + snapshot!(expr.to_token_stream() as Pat, @r#" + Pat::Tuple { + elems: [ + Pat::Wild, + Token![,], + Pat::Wild, + Token![,], + ], + } + "#); +} diff --git a/vendor/syn/tests/test_path.rs b/vendor/syn/tests/test_path.rs new file mode 100644 index 00000000..39aa91c0 --- /dev/null +++ b/vendor/syn/tests/test_path.rs @@ -0,0 +1,114 @@ +#![allow( + clippy::elidable_lifetime_names, + clippy::needless_lifetimes, + clippy::uninlined_format_args +)] + +#[macro_use] +mod macros; + +use proc_macro2::{Delimiter, Group, Ident, Punct, Spacing, Span, TokenStream, TokenTree}; +use quote::{quote, ToTokens}; +use syn::{parse_quote, Expr, Type, TypePath}; + +#[test] +fn parse_interpolated_leading_component() { + // mimics the token stream corresponding to `$mod::rest` + let tokens = TokenStream::from_iter([ + TokenTree::Group(Group::new(Delimiter::None, quote! { first })), + TokenTree::Punct(Punct::new(':', Spacing::Joint)), + TokenTree::Punct(Punct::new(':', Spacing::Alone)), + TokenTree::Ident(Ident::new("rest", Span::call_site())), + ]); + + snapshot!(tokens.clone() as Expr, @r#" + Expr::Path { + path: Path { + segments: [ + PathSegment { + ident: "first", + }, + Token![::], + PathSegment { + ident: "rest", + }, + ], + }, + } + "#); + + snapshot!(tokens as Type, @r#" + Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "first", + }, + Token![::], + PathSegment { + ident: "rest", + }, + ], + }, + } + "#); +} + +#[test] +fn print_incomplete_qpath() { + // qpath with `as` token + let mut ty: TypePath = parse_quote!(<Self as A>::Q); + snapshot!(ty.to_token_stream(), @"TokenStream(`< Self as A > :: Q`)"); + assert!(ty.path.segments.pop().is_some()); + snapshot!(ty.to_token_stream(), @"TokenStream(`< Self as A > ::`)"); + assert!(ty.path.segments.pop().is_some()); + snapshot!(ty.to_token_stream(), @"TokenStream(`< Self >`)"); + assert!(ty.path.segments.pop().is_none()); + + // qpath without `as` token + let mut ty: TypePath = parse_quote!(<Self>::A::B); + snapshot!(ty.to_token_stream(), @"TokenStream(`< Self > :: A :: B`)"); + assert!(ty.path.segments.pop().is_some()); + snapshot!(ty.to_token_stream(), @"TokenStream(`< Self > :: A ::`)"); + assert!(ty.path.segments.pop().is_some()); + snapshot!(ty.to_token_stream(), @"TokenStream(`< Self > ::`)"); + assert!(ty.path.segments.pop().is_none()); + + // normal path + let mut ty: TypePath = parse_quote!(Self::A::B); + snapshot!(ty.to_token_stream(), @"TokenStream(`Self :: A :: B`)"); + assert!(ty.path.segments.pop().is_some()); + snapshot!(ty.to_token_stream(), @"TokenStream(`Self :: A ::`)"); + assert!(ty.path.segments.pop().is_some()); + snapshot!(ty.to_token_stream(), @"TokenStream(`Self ::`)"); + assert!(ty.path.segments.pop().is_some()); + snapshot!(ty.to_token_stream(), @"TokenStream(``)"); + assert!(ty.path.segments.pop().is_none()); +} + +#[test] +fn parse_parenthesized_path_arguments_with_disambiguator() { + #[rustfmt::skip] + let tokens = quote!(dyn FnOnce::() -> !); + snapshot!(tokens as Type, @r#" + Type::TraitObject { + dyn_token: Some, + bounds: [ + TypeParamBound::Trait(TraitBound { + path: Path { + segments: [ + PathSegment { + ident: "FnOnce", + arguments: PathArguments::Parenthesized { + output: ReturnType::Type( + Type::Never, + ), + }, + }, + ], + }, + }), + ], + } + "#); +} diff --git a/vendor/syn/tests/test_precedence.rs b/vendor/syn/tests/test_precedence.rs new file mode 100644 index 00000000..58d3a989 --- /dev/null +++ b/vendor/syn/tests/test_precedence.rs @@ -0,0 +1,547 @@ +// This test does the following for every file in the rust-lang/rust repo: +// +// 1. Parse the file using syn into a syn::File. +// 2. Extract every syn::Expr from the file. +// 3. Print each expr to a string of source code. +// 4. Parse the source code using librustc_parse into a rustc_ast::Expr. +// 5. For both the syn::Expr and rustc_ast::Expr, crawl the syntax tree to +// insert parentheses surrounding every subexpression. +// 6. Serialize the fully parenthesized syn::Expr to a string of source code. +// 7. Parse the fully parenthesized source code using librustc_parse. +// 8. Compare the rustc_ast::Expr resulting from parenthesizing using rustc data +// structures vs syn data structures, ignoring spans. If they agree, rustc's +// parser and syn's parser have identical handling of expression precedence. + +#![cfg(not(syn_disable_nightly_tests))] +#![cfg(not(miri))] +#![recursion_limit = "1024"] +#![feature(rustc_private)] +#![allow( + clippy::blocks_in_conditions, + clippy::doc_markdown, + clippy::elidable_lifetime_names, + clippy::explicit_deref_methods, + clippy::let_underscore_untyped, + clippy::manual_assert, + clippy::manual_let_else, + clippy::match_like_matches_macro, + clippy::match_wildcard_for_single_variants, + clippy::needless_lifetimes, + clippy::too_many_lines, + clippy::uninlined_format_args, + clippy::unnecessary_box_returns +)] + +extern crate rustc_ast; +extern crate rustc_ast_pretty; +extern crate rustc_data_structures; +extern crate rustc_driver; +extern crate rustc_span; +extern crate smallvec; +extern crate thin_vec; + +use crate::common::eq::SpanlessEq; +use crate::common::parse; +use quote::ToTokens; +use rustc_ast::ast; +use rustc_ast_pretty::pprust; +use rustc_span::edition::Edition; +use std::fs; +use std::mem; +use std::path::Path; +use std::process; +use std::sync::atomic::{AtomicUsize, Ordering}; +use syn::parse::Parser as _; + +#[macro_use] +mod macros; + +mod common; +mod repo; + +#[path = "../src/scan_expr.rs"] +mod scan_expr; + +#[test] +fn test_rustc_precedence() { + repo::rayon_init(); + repo::clone_rust(); + let abort_after = repo::abort_after(); + if abort_after == 0 { + panic!("skipping all precedence tests"); + } + + let passed = AtomicUsize::new(0); + let failed = AtomicUsize::new(0); + + repo::for_each_rust_file(|path| { + let content = fs::read_to_string(path).unwrap(); + + let (l_passed, l_failed) = match syn::parse_file(&content) { + Ok(file) => { + let edition = repo::edition(path).parse().unwrap(); + let exprs = collect_exprs(file); + let (l_passed, l_failed) = test_expressions(path, edition, exprs); + errorf!( + "=== {}: {} passed | {} failed\n", + path.display(), + l_passed, + l_failed, + ); + (l_passed, l_failed) + } + Err(msg) => { + errorf!("\nFAIL {} - syn failed to parse: {}\n", path.display(), msg); + (0, 1) + } + }; + + passed.fetch_add(l_passed, Ordering::Relaxed); + let prev_failed = failed.fetch_add(l_failed, Ordering::Relaxed); + + if prev_failed + l_failed >= abort_after { + process::exit(1); + } + }); + + let passed = passed.into_inner(); + let failed = failed.into_inner(); + + errorf!("\n===== Precedence Test Results =====\n"); + errorf!("{} passed | {} failed\n", passed, failed); + + if failed > 0 { + panic!("{} failures", failed); + } +} + +fn test_expressions(path: &Path, edition: Edition, exprs: Vec<syn::Expr>) -> (usize, usize) { + let mut passed = 0; + let mut failed = 0; + + rustc_span::create_session_if_not_set_then(edition, |_| { + for expr in exprs { + let expr_tokens = expr.to_token_stream(); + let source_code = expr_tokens.to_string(); + let librustc_ast = if let Some(e) = librustc_parse_and_rewrite(&source_code) { + e + } else { + failed += 1; + errorf!( + "\nFAIL {} - librustc failed to parse original\n", + path.display(), + ); + continue; + }; + + let syn_parenthesized_code = + syn_parenthesize(expr.clone()).to_token_stream().to_string(); + let syn_ast = if let Some(e) = parse::librustc_expr(&syn_parenthesized_code) { + e + } else { + failed += 1; + errorf!( + "\nFAIL {} - librustc failed to parse parenthesized\n", + path.display(), + ); + continue; + }; + + if !SpanlessEq::eq(&syn_ast, &librustc_ast) { + failed += 1; + let syn_pretty = pprust::expr_to_string(&syn_ast); + let librustc_pretty = pprust::expr_to_string(&librustc_ast); + errorf!( + "\nFAIL {}\n{}\nsyn != rustc\n{}\n", + path.display(), + syn_pretty, + librustc_pretty, + ); + continue; + } + + let expr_invisible = make_parens_invisible(expr); + let Ok(reparsed_expr_invisible) = syn::parse2(expr_invisible.to_token_stream()) else { + failed += 1; + errorf!( + "\nFAIL {} - syn failed to parse invisible delimiters\n{}\n", + path.display(), + source_code, + ); + continue; + }; + if expr_invisible != reparsed_expr_invisible { + failed += 1; + errorf!( + "\nFAIL {} - mismatch after parsing invisible delimiters\n{}\n", + path.display(), + source_code, + ); + continue; + } + + if scan_expr::scan_expr.parse2(expr_tokens).is_err() { + failed += 1; + errorf!( + "\nFAIL {} - failed to scan expr\n{}\n", + path.display(), + source_code, + ); + continue; + } + + passed += 1; + } + }); + + (passed, failed) +} + +fn librustc_parse_and_rewrite(input: &str) -> Option<Box<ast::Expr>> { + parse::librustc_expr(input).map(librustc_parenthesize) +} + +fn librustc_parenthesize(mut librustc_expr: Box<ast::Expr>) -> Box<ast::Expr> { + use rustc_ast::ast::{ + AssocItem, AssocItemKind, Attribute, BinOpKind, Block, BoundConstness, Expr, ExprField, + ExprKind, GenericArg, GenericBound, Local, LocalKind, Pat, PolyTraitRef, Stmt, StmtKind, + StructExpr, StructRest, TraitBoundModifiers, Ty, + }; + use rustc_ast::mut_visit::{walk_flat_map_assoc_item, MutVisitor}; + use rustc_ast::visit::{AssocCtxt, BoundKind}; + use rustc_data_structures::flat_map_in_place::FlatMapInPlace; + use rustc_span::DUMMY_SP; + use smallvec::SmallVec; + use std::ops::DerefMut; + use thin_vec::ThinVec; + + struct FullyParenthesize; + + fn contains_let_chain(expr: &Expr) -> bool { + match &expr.kind { + ExprKind::Let(..) => true, + ExprKind::Binary(binop, left, right) => { + binop.node == BinOpKind::And + && (contains_let_chain(left) || contains_let_chain(right)) + } + _ => false, + } + } + + fn flat_map_field<T: MutVisitor>(mut f: ExprField, vis: &mut T) -> Vec<ExprField> { + if f.is_shorthand { + noop_visit_expr(&mut f.expr, vis); + } else { + vis.visit_expr(&mut f.expr); + } + vec![f] + } + + fn flat_map_stmt<T: MutVisitor>(stmt: Stmt, vis: &mut T) -> Vec<Stmt> { + let kind = match stmt.kind { + // Don't wrap toplevel expressions in statements. + StmtKind::Expr(mut e) => { + noop_visit_expr(&mut e, vis); + StmtKind::Expr(e) + } + StmtKind::Semi(mut e) => { + noop_visit_expr(&mut e, vis); + StmtKind::Semi(e) + } + s => s, + }; + + vec![Stmt { kind, ..stmt }] + } + + fn noop_visit_expr<T: MutVisitor>(e: &mut Expr, vis: &mut T) { + match &mut e.kind { + ExprKind::Become(..) => {} + ExprKind::Struct(expr) => { + let StructExpr { + qself, + path, + fields, + rest, + } = expr.deref_mut(); + vis.visit_qself(qself); + vis.visit_path(path); + fields.flat_map_in_place(|field| flat_map_field(field, vis)); + if let StructRest::Base(rest) = rest { + vis.visit_expr(rest); + } + } + _ => rustc_ast::mut_visit::walk_expr(vis, e), + } + } + + impl MutVisitor for FullyParenthesize { + fn visit_expr(&mut self, e: &mut Expr) { + noop_visit_expr(e, self); + match e.kind { + ExprKind::Block(..) | ExprKind::If(..) | ExprKind::Let(..) => {} + ExprKind::Binary(..) if contains_let_chain(e) => {} + _ => { + let inner = mem::replace(e, Expr::dummy()); + *e = Expr { + id: ast::DUMMY_NODE_ID, + kind: ExprKind::Paren(Box::new(inner)), + span: DUMMY_SP, + attrs: ThinVec::new(), + tokens: None, + }; + } + } + } + + fn visit_generic_arg(&mut self, arg: &mut GenericArg) { + match arg { + GenericArg::Lifetime(_lifetime) => {} + GenericArg::Type(arg) => self.visit_ty(arg), + // Don't wrap unbraced const generic arg as that's invalid syntax. + GenericArg::Const(anon_const) => { + if let ExprKind::Block(..) = &mut anon_const.value.kind { + noop_visit_expr(&mut anon_const.value, self); + } + } + } + } + + fn visit_param_bound(&mut self, bound: &mut GenericBound, _ctxt: BoundKind) { + match bound { + GenericBound::Trait(PolyTraitRef { + modifiers: + TraitBoundModifiers { + constness: BoundConstness::Maybe(_), + .. + }, + .. + }) + | GenericBound::Outlives(..) + | GenericBound::Use(..) => {} + GenericBound::Trait(ty) => self.visit_poly_trait_ref(ty), + } + } + + fn visit_block(&mut self, block: &mut Block) { + self.visit_id(&mut block.id); + block + .stmts + .flat_map_in_place(|stmt| flat_map_stmt(stmt, self)); + self.visit_span(&mut block.span); + } + + fn visit_local(&mut self, local: &mut Local) { + match &mut local.kind { + LocalKind::Decl => {} + LocalKind::Init(init) => { + self.visit_expr(init); + } + LocalKind::InitElse(init, els) => { + self.visit_expr(init); + self.visit_block(els); + } + } + } + + fn flat_map_assoc_item( + &mut self, + item: Box<AssocItem>, + ctxt: AssocCtxt, + ) -> SmallVec<[Box<AssocItem>; 1]> { + match &item.kind { + AssocItemKind::Const(const_item) + if !const_item.generics.params.is_empty() + || !const_item.generics.where_clause.predicates.is_empty() => + { + SmallVec::from([item]) + } + _ => walk_flat_map_assoc_item(self, item, ctxt), + } + } + + // We don't want to look at expressions that might appear in patterns or + // types yet. We'll look into comparing those in the future. For now + // focus on expressions appearing in other places. + fn visit_pat(&mut self, pat: &mut Pat) { + let _ = pat; + } + + fn visit_ty(&mut self, ty: &mut Ty) { + let _ = ty; + } + + fn visit_attribute(&mut self, attr: &mut Attribute) { + let _ = attr; + } + } + + let mut folder = FullyParenthesize; + folder.visit_expr(&mut librustc_expr); + librustc_expr +} + +fn syn_parenthesize(syn_expr: syn::Expr) -> syn::Expr { + use syn::fold::{fold_expr, fold_generic_argument, Fold}; + use syn::{token, BinOp, Expr, ExprParen, GenericArgument, MetaNameValue, Pat, Stmt, Type}; + + struct FullyParenthesize; + + fn parenthesize(expr: Expr) -> Expr { + Expr::Paren(ExprParen { + attrs: Vec::new(), + expr: Box::new(expr), + paren_token: token::Paren::default(), + }) + } + + fn needs_paren(expr: &Expr) -> bool { + match expr { + Expr::Group(_) => unreachable!(), + Expr::If(_) | Expr::Unsafe(_) | Expr::Block(_) | Expr::Let(_) => false, + Expr::Binary(_) => !contains_let_chain(expr), + _ => true, + } + } + + fn contains_let_chain(expr: &Expr) -> bool { + match expr { + Expr::Let(_) => true, + Expr::Binary(expr) => { + matches!(expr.op, BinOp::And(_)) + && (contains_let_chain(&expr.left) || contains_let_chain(&expr.right)) + } + _ => false, + } + } + + impl Fold for FullyParenthesize { + fn fold_expr(&mut self, expr: Expr) -> Expr { + let needs_paren = needs_paren(&expr); + let folded = fold_expr(self, expr); + if needs_paren { + parenthesize(folded) + } else { + folded + } + } + + fn fold_generic_argument(&mut self, arg: GenericArgument) -> GenericArgument { + match arg { + GenericArgument::Const(arg) => GenericArgument::Const(match arg { + Expr::Block(_) => fold_expr(self, arg), + // Don't wrap unbraced const generic arg as that's invalid syntax. + _ => arg, + }), + _ => fold_generic_argument(self, arg), + } + } + + fn fold_stmt(&mut self, stmt: Stmt) -> Stmt { + match stmt { + // Don't wrap toplevel expressions in statements. + Stmt::Expr(Expr::Verbatim(_), Some(_)) => stmt, + Stmt::Expr(e, semi) => Stmt::Expr(fold_expr(self, e), semi), + s => s, + } + } + + fn fold_meta_name_value(&mut self, meta: MetaNameValue) -> MetaNameValue { + // Don't turn #[p = "..."] into #[p = ("...")]. + meta + } + + // We don't want to look at expressions that might appear in patterns or + // types yet. We'll look into comparing those in the future. For now + // focus on expressions appearing in other places. + fn fold_pat(&mut self, pat: Pat) -> Pat { + pat + } + + fn fold_type(&mut self, ty: Type) -> Type { + ty + } + } + + let mut folder = FullyParenthesize; + folder.fold_expr(syn_expr) +} + +fn make_parens_invisible(expr: syn::Expr) -> syn::Expr { + use syn::fold::{fold_expr, fold_stmt, Fold}; + use syn::{token, Expr, ExprGroup, ExprParen, Stmt}; + + struct MakeParensInvisible; + + impl Fold for MakeParensInvisible { + fn fold_expr(&mut self, mut expr: Expr) -> Expr { + if let Expr::Paren(paren) = expr { + expr = Expr::Group(ExprGroup { + attrs: paren.attrs, + group_token: token::Group(paren.paren_token.span.join()), + expr: paren.expr, + }); + } + fold_expr(self, expr) + } + + fn fold_stmt(&mut self, stmt: Stmt) -> Stmt { + if let Stmt::Expr(expr @ (Expr::Binary(_) | Expr::Call(_) | Expr::Cast(_)), None) = stmt + { + Stmt::Expr( + Expr::Paren(ExprParen { + attrs: Vec::new(), + paren_token: token::Paren::default(), + expr: Box::new(fold_expr(self, expr)), + }), + None, + ) + } else { + fold_stmt(self, stmt) + } + } + } + + let mut folder = MakeParensInvisible; + folder.fold_expr(expr) +} + +/// Walk through a crate collecting all expressions we can find in it. +fn collect_exprs(file: syn::File) -> Vec<syn::Expr> { + use syn::fold::Fold; + use syn::punctuated::Punctuated; + use syn::{token, ConstParam, Expr, ExprTuple, Pat, Path}; + + struct CollectExprs(Vec<Expr>); + impl Fold for CollectExprs { + fn fold_expr(&mut self, expr: Expr) -> Expr { + match expr { + Expr::Verbatim(_) => {} + _ => self.0.push(expr), + } + + Expr::Tuple(ExprTuple { + attrs: vec![], + elems: Punctuated::new(), + paren_token: token::Paren::default(), + }) + } + + fn fold_pat(&mut self, pat: Pat) -> Pat { + pat + } + + fn fold_path(&mut self, path: Path) -> Path { + // Skip traversing into const generic path arguments + path + } + + fn fold_const_param(&mut self, const_param: ConstParam) -> ConstParam { + const_param + } + } + + let mut folder = CollectExprs(vec![]); + folder.fold_file(file); + folder.0 +} diff --git a/vendor/syn/tests/test_receiver.rs b/vendor/syn/tests/test_receiver.rs new file mode 100644 index 00000000..b0e2a91f --- /dev/null +++ b/vendor/syn/tests/test_receiver.rs @@ -0,0 +1,325 @@ +#![allow( + clippy::elidable_lifetime_names, + clippy::needless_lifetimes, + clippy::uninlined_format_args +)] + +#[macro_use] +mod macros; + +use syn::{parse_quote, TraitItemFn}; + +#[test] +fn test_by_value() { + let TraitItemFn { sig, .. } = parse_quote! { + fn by_value(self: Self); + }; + snapshot!(&sig.inputs[0], @r#" + FnArg::Receiver(Receiver { + colon_token: Some, + ty: Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "Self", + }, + ], + }, + }, + }) + "#); +} + +#[test] +fn test_by_mut_value() { + let TraitItemFn { sig, .. } = parse_quote! { + fn by_mut(mut self: Self); + }; + snapshot!(&sig.inputs[0], @r#" + FnArg::Receiver(Receiver { + mutability: Some, + colon_token: Some, + ty: Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "Self", + }, + ], + }, + }, + }) + "#); +} + +#[test] +fn test_by_ref() { + let TraitItemFn { sig, .. } = parse_quote! { + fn by_ref(self: &Self); + }; + snapshot!(&sig.inputs[0], @r#" + FnArg::Receiver(Receiver { + colon_token: Some, + ty: Type::Reference { + elem: Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "Self", + }, + ], + }, + }, + }, + }) + "#); +} + +#[test] +fn test_by_box() { + let TraitItemFn { sig, .. } = parse_quote! { + fn by_box(self: Box<Self>); + }; + snapshot!(&sig.inputs[0], @r#" + FnArg::Receiver(Receiver { + colon_token: Some, + ty: Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "Box", + arguments: PathArguments::AngleBracketed { + args: [ + GenericArgument::Type(Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "Self", + }, + ], + }, + }), + ], + }, + }, + ], + }, + }, + }) + "#); +} + +#[test] +fn test_by_pin() { + let TraitItemFn { sig, .. } = parse_quote! { + fn by_pin(self: Pin<Self>); + }; + snapshot!(&sig.inputs[0], @r#" + FnArg::Receiver(Receiver { + colon_token: Some, + ty: Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "Pin", + arguments: PathArguments::AngleBracketed { + args: [ + GenericArgument::Type(Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "Self", + }, + ], + }, + }), + ], + }, + }, + ], + }, + }, + }) + "#); +} + +#[test] +fn test_explicit_type() { + let TraitItemFn { sig, .. } = parse_quote! { + fn explicit_type(self: Pin<MyType>); + }; + snapshot!(&sig.inputs[0], @r#" + FnArg::Receiver(Receiver { + colon_token: Some, + ty: Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "Pin", + arguments: PathArguments::AngleBracketed { + args: [ + GenericArgument::Type(Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "MyType", + }, + ], + }, + }), + ], + }, + }, + ], + }, + }, + }) + "#); +} + +#[test] +fn test_value_shorthand() { + let TraitItemFn { sig, .. } = parse_quote! { + fn value_shorthand(self); + }; + snapshot!(&sig.inputs[0], @r#" + FnArg::Receiver(Receiver { + ty: Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "Self", + }, + ], + }, + }, + }) + "#); +} + +#[test] +fn test_mut_value_shorthand() { + let TraitItemFn { sig, .. } = parse_quote! { + fn mut_value_shorthand(mut self); + }; + snapshot!(&sig.inputs[0], @r#" + FnArg::Receiver(Receiver { + mutability: Some, + ty: Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "Self", + }, + ], + }, + }, + }) + "#); +} + +#[test] +fn test_ref_shorthand() { + let TraitItemFn { sig, .. } = parse_quote! { + fn ref_shorthand(&self); + }; + snapshot!(&sig.inputs[0], @r#" + FnArg::Receiver(Receiver { + reference: Some(None), + ty: Type::Reference { + elem: Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "Self", + }, + ], + }, + }, + }, + }) + "#); +} + +#[test] +fn test_ref_shorthand_with_lifetime() { + let TraitItemFn { sig, .. } = parse_quote! { + fn ref_shorthand(&'a self); + }; + snapshot!(&sig.inputs[0], @r#" + FnArg::Receiver(Receiver { + reference: Some(Some(Lifetime { + ident: "a", + })), + ty: Type::Reference { + lifetime: Some(Lifetime { + ident: "a", + }), + elem: Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "Self", + }, + ], + }, + }, + }, + }) + "#); +} + +#[test] +fn test_ref_mut_shorthand() { + let TraitItemFn { sig, .. } = parse_quote! { + fn ref_mut_shorthand(&mut self); + }; + snapshot!(&sig.inputs[0], @r#" + FnArg::Receiver(Receiver { + reference: Some(None), + mutability: Some, + ty: Type::Reference { + mutability: Some, + elem: Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "Self", + }, + ], + }, + }, + }, + }) + "#); +} + +#[test] +fn test_ref_mut_shorthand_with_lifetime() { + let TraitItemFn { sig, .. } = parse_quote! { + fn ref_mut_shorthand(&'a mut self); + }; + snapshot!(&sig.inputs[0], @r#" + FnArg::Receiver(Receiver { + reference: Some(Some(Lifetime { + ident: "a", + })), + mutability: Some, + ty: Type::Reference { + lifetime: Some(Lifetime { + ident: "a", + }), + mutability: Some, + elem: Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "Self", + }, + ], + }, + }, + }, + }) + "#); +} diff --git a/vendor/syn/tests/test_round_trip.rs b/vendor/syn/tests/test_round_trip.rs new file mode 100644 index 00000000..3657da2b --- /dev/null +++ b/vendor/syn/tests/test_round_trip.rs @@ -0,0 +1,249 @@ +#![cfg(not(syn_disable_nightly_tests))] +#![cfg(not(miri))] +#![recursion_limit = "1024"] +#![feature(rustc_private)] +#![allow( + clippy::blocks_in_conditions, + clippy::elidable_lifetime_names, + clippy::manual_assert, + clippy::manual_let_else, + clippy::match_like_matches_macro, + clippy::needless_lifetimes, + clippy::uninlined_format_args +)] +#![allow(mismatched_lifetime_syntaxes)] + +extern crate rustc_ast; +extern crate rustc_ast_pretty; +extern crate rustc_data_structures; +extern crate rustc_driver; +extern crate rustc_error_messages; +extern crate rustc_errors; +extern crate rustc_expand; +extern crate rustc_parse as parse; +extern crate rustc_session; +extern crate rustc_span; + +use crate::common::eq::SpanlessEq; +use quote::quote; +use rustc_ast::ast::{ + AngleBracketedArg, Crate, GenericArg, GenericArgs, GenericParamKind, Generics, +}; +use rustc_ast::mut_visit::{self, MutVisitor}; +use rustc_ast_pretty::pprust; +use rustc_data_structures::flat_map_in_place::FlatMapInPlace; +use rustc_error_messages::{DiagMessage, LazyFallbackBundle}; +use rustc_errors::{translation, Diag, PResult}; +use rustc_session::parse::ParseSess; +use rustc_span::FileName; +use std::borrow::Cow; +use std::fs; +use std::panic; +use std::path::Path; +use std::process; +use std::sync::atomic::{AtomicUsize, Ordering}; +use std::time::Instant; + +#[macro_use] +mod macros; + +mod common; +mod repo; + +#[test] +fn test_round_trip() { + repo::rayon_init(); + repo::clone_rust(); + let abort_after = repo::abort_after(); + if abort_after == 0 { + panic!("skipping all round_trip tests"); + } + + let failed = AtomicUsize::new(0); + + repo::for_each_rust_file(|path| test(path, &failed, abort_after)); + + let failed = failed.into_inner(); + if failed > 0 { + panic!("{} failures", failed); + } +} + +fn test(path: &Path, failed: &AtomicUsize, abort_after: usize) { + let failed = || { + let prev_failed = failed.fetch_add(1, Ordering::Relaxed); + if prev_failed + 1 >= abort_after { + process::exit(1); + } + }; + + let content = fs::read_to_string(path).unwrap(); + + let (back, elapsed) = match panic::catch_unwind(|| { + let start = Instant::now(); + let result = syn::parse_file(&content); + let elapsed = start.elapsed(); + result.map(|krate| (quote!(#krate).to_string(), elapsed)) + }) { + Err(_) => { + errorf!("=== {}: syn panic\n", path.display()); + failed(); + return; + } + Ok(Err(msg)) => { + errorf!("=== {}: syn failed to parse\n{:?}\n", path.display(), msg); + failed(); + return; + } + Ok(Ok(result)) => result, + }; + + let edition = repo::edition(path).parse().unwrap(); + + rustc_span::create_session_if_not_set_then(edition, |_| { + let equal = match panic::catch_unwind(|| { + let locale_resources = rustc_driver::DEFAULT_LOCALE_RESOURCES.to_vec(); + let sess = ParseSess::new(locale_resources); + let before = match librustc_parse(content, &sess) { + Ok(before) => before, + Err(diagnostic) => { + errorf!( + "=== {}: ignore - librustc failed to parse original content: {}\n", + path.display(), + translate_message(&diagnostic), + ); + diagnostic.cancel(); + return Err(true); + } + }; + let after = match librustc_parse(back, &sess) { + Ok(after) => after, + Err(diagnostic) => { + errorf!("=== {}: librustc failed to parse", path.display()); + diagnostic.emit(); + return Err(false); + } + }; + Ok((before, after)) + }) { + Err(_) => { + errorf!("=== {}: ignoring librustc panic\n", path.display()); + true + } + Ok(Err(equal)) => equal, + Ok(Ok((mut before, mut after))) => { + normalize(&mut before); + normalize(&mut after); + if SpanlessEq::eq(&before, &after) { + errorf!( + "=== {}: pass in {}ms\n", + path.display(), + elapsed.as_secs() * 1000 + u64::from(elapsed.subsec_nanos()) / 1_000_000 + ); + true + } else { + errorf!( + "=== {}: FAIL\n{}\n!=\n{}\n", + path.display(), + pprust::crate_to_string_for_macros(&before), + pprust::crate_to_string_for_macros(&after), + ); + false + } + } + }; + if !equal { + failed(); + } + }); +} + +fn librustc_parse(content: String, sess: &ParseSess) -> PResult<Crate> { + static COUNTER: AtomicUsize = AtomicUsize::new(0); + let counter = COUNTER.fetch_add(1, Ordering::Relaxed); + let name = FileName::Custom(format!("test_round_trip{}", counter)); + let mut parser = parse::new_parser_from_source_str(sess, name, content).unwrap(); + parser.parse_crate_mod() +} + +fn translate_message(diagnostic: &Diag) -> Cow<'static, str> { + thread_local! { + static FLUENT_BUNDLE: LazyFallbackBundle = { + let locale_resources = rustc_driver::DEFAULT_LOCALE_RESOURCES.to_vec(); + let with_directionality_markers = false; + rustc_error_messages::fallback_fluent_bundle(locale_resources, with_directionality_markers) + }; + } + + let message = &diagnostic.messages[0].0; + let args = translation::to_fluent_args(diagnostic.args.iter()); + + let (identifier, attr) = match message { + DiagMessage::Str(msg) | DiagMessage::Translated(msg) => return msg.clone(), + DiagMessage::FluentIdentifier(identifier, attr) => (identifier, attr), + }; + + FLUENT_BUNDLE.with(|fluent_bundle| { + let message = fluent_bundle + .get_message(identifier) + .expect("missing diagnostic in fluent bundle"); + let value = match attr { + Some(attr) => message + .get_attribute(attr) + .expect("missing attribute in fluent message") + .value(), + None => message.value().expect("missing value in fluent message"), + }; + + let mut err = Vec::new(); + let translated = fluent_bundle.format_pattern(value, Some(&args), &mut err); + assert!(err.is_empty()); + Cow::Owned(translated.into_owned()) + }) +} + +fn normalize(krate: &mut Crate) { + struct NormalizeVisitor; + + impl MutVisitor for NormalizeVisitor { + fn visit_generic_args(&mut self, e: &mut GenericArgs) { + if let GenericArgs::AngleBracketed(e) = e { + #[derive(Ord, PartialOrd, Eq, PartialEq)] + enum Group { + Lifetimes, + TypesAndConsts, + Constraints, + } + e.args.sort_by_key(|arg| match arg { + AngleBracketedArg::Arg(arg) => match arg { + GenericArg::Lifetime(_) => Group::Lifetimes, + GenericArg::Type(_) | GenericArg::Const(_) => Group::TypesAndConsts, + }, + AngleBracketedArg::Constraint(_) => Group::Constraints, + }); + } + mut_visit::walk_generic_args(self, e); + } + + fn visit_generics(&mut self, e: &mut Generics) { + #[derive(Ord, PartialOrd, Eq, PartialEq)] + enum Group { + Lifetimes, + TypesAndConsts, + } + e.params.sort_by_key(|param| match param.kind { + GenericParamKind::Lifetime => Group::Lifetimes, + GenericParamKind::Type { .. } | GenericParamKind::Const { .. } => { + Group::TypesAndConsts + } + }); + e.params + .flat_map_in_place(|param| self.flat_map_generic_param(param)); + if e.where_clause.predicates.is_empty() { + e.where_clause.has_where_token = false; + } + } + } + + NormalizeVisitor.visit_crate(krate); +} diff --git a/vendor/syn/tests/test_shebang.rs b/vendor/syn/tests/test_shebang.rs new file mode 100644 index 00000000..20450b74 --- /dev/null +++ b/vendor/syn/tests/test_shebang.rs @@ -0,0 +1,71 @@ +#![allow( + clippy::elidable_lifetime_names, + clippy::needless_lifetimes, + clippy::uninlined_format_args +)] + +#[macro_use] +mod macros; + +#[test] +fn test_basic() { + let content = "#!/usr/bin/env rustx\nfn main() {}"; + let file = syn::parse_file(content).unwrap(); + snapshot!(file, @r##" + File { + shebang: Some("#!/usr/bin/env rustx"), + items: [ + Item::Fn { + vis: Visibility::Inherited, + sig: Signature { + ident: "main", + generics: Generics, + output: ReturnType::Default, + }, + block: Block { + stmts: [], + }, + }, + ], + } + "##); +} + +#[test] +fn test_comment() { + let content = "#!//am/i/a/comment\n[allow(dead_code)] fn main() {}"; + let file = syn::parse_file(content).unwrap(); + snapshot!(file, @r#" + File { + attrs: [ + Attribute { + style: AttrStyle::Inner, + meta: Meta::List { + path: Path { + segments: [ + PathSegment { + ident: "allow", + }, + ], + }, + delimiter: MacroDelimiter::Paren, + tokens: TokenStream(`dead_code`), + }, + }, + ], + items: [ + Item::Fn { + vis: Visibility::Inherited, + sig: Signature { + ident: "main", + generics: Generics, + output: ReturnType::Default, + }, + block: Block { + stmts: [], + }, + }, + ], + } + "#); +} diff --git a/vendor/syn/tests/test_size.rs b/vendor/syn/tests/test_size.rs new file mode 100644 index 00000000..29fd4358 --- /dev/null +++ b/vendor/syn/tests/test_size.rs @@ -0,0 +1,54 @@ +// Assumes proc-macro2's "span-locations" feature is off. + +use std::mem; +use syn::{Expr, Item, Lit, Pat, Type}; + +#[rustversion::attr(before(2022-11-24), ignore = "requires nightly-2022-11-24 or newer")] +#[rustversion::attr( + since(2022-11-24), + cfg_attr(not(target_pointer_width = "64"), ignore = "only applicable to 64-bit") +)] +#[test] +fn test_expr_size() { + assert_eq!(mem::size_of::<Expr>(), 176); +} + +#[rustversion::attr(before(2022-09-09), ignore = "requires nightly-2022-09-09 or newer")] +#[rustversion::attr( + since(2022-09-09), + cfg_attr(not(target_pointer_width = "64"), ignore = "only applicable to 64-bit") +)] +#[test] +fn test_item_size() { + assert_eq!(mem::size_of::<Item>(), 352); +} + +#[rustversion::attr(before(2023-04-29), ignore = "requires nightly-2023-04-29 or newer")] +#[rustversion::attr( + since(2023-04-29), + cfg_attr(not(target_pointer_width = "64"), ignore = "only applicable to 64-bit") +)] +#[test] +fn test_type_size() { + assert_eq!(mem::size_of::<Type>(), 224); +} + +#[rustversion::attr(before(2023-04-29), ignore = "requires nightly-2023-04-29 or newer")] +#[rustversion::attr( + since(2023-04-29), + cfg_attr(not(target_pointer_width = "64"), ignore = "only applicable to 64-bit") +)] +#[test] +fn test_pat_size() { + assert_eq!(mem::size_of::<Pat>(), 184); +} + +#[rustversion::attr(before(2023-12-20), ignore = "requires nightly-2023-12-20 or newer")] +#[rustversion::attr( + since(2023-12-20), + cfg_attr(not(target_pointer_width = "64"), ignore = "only applicable to 64-bit") +)] +#[test] +fn test_lit_size() { + assert_eq!(mem::size_of::<Lit>(), 24); +} diff --git a/vendor/syn/tests/test_stmt.rs b/vendor/syn/tests/test_stmt.rs new file mode 100644 index 00000000..ba1e63af --- /dev/null +++ b/vendor/syn/tests/test_stmt.rs @@ -0,0 +1,335 @@ +#![allow( + clippy::assertions_on_result_states, + clippy::elidable_lifetime_names, + clippy::needless_lifetimes, + clippy::non_ascii_literal, + clippy::uninlined_format_args +)] + +#[macro_use] +mod macros; + +use proc_macro2::{Delimiter, Group, Ident, Span, TokenStream, TokenTree}; +use quote::{quote, ToTokens as _}; +use syn::parse::Parser as _; +use syn::{Block, Stmt}; + +#[test] +fn test_raw_operator() { + let stmt = syn::parse_str::<Stmt>("let _ = &raw const x;").unwrap(); + + snapshot!(stmt, @r#" + Stmt::Local { + pat: Pat::Wild, + init: Some(LocalInit { + expr: Expr::RawAddr { + mutability: PointerMutability::Const, + expr: Expr::Path { + path: Path { + segments: [ + PathSegment { + ident: "x", + }, + ], + }, + }, + }, + }), + } + "#); +} + +#[test] +fn test_raw_variable() { + let stmt = syn::parse_str::<Stmt>("let _ = &raw;").unwrap(); + + snapshot!(stmt, @r#" + Stmt::Local { + pat: Pat::Wild, + init: Some(LocalInit { + expr: Expr::Reference { + expr: Expr::Path { + path: Path { + segments: [ + PathSegment { + ident: "raw", + }, + ], + }, + }, + }, + }), + } + "#); +} + +#[test] +fn test_raw_invalid() { + assert!(syn::parse_str::<Stmt>("let _ = &raw x;").is_err()); +} + +#[test] +fn test_none_group() { + // «∅ async fn f() {} ∅» + let tokens = TokenStream::from_iter([TokenTree::Group(Group::new( + Delimiter::None, + TokenStream::from_iter([ + TokenTree::Ident(Ident::new("async", Span::call_site())), + TokenTree::Ident(Ident::new("fn", Span::call_site())), + TokenTree::Ident(Ident::new("f", Span::call_site())), + TokenTree::Group(Group::new(Delimiter::Parenthesis, TokenStream::new())), + TokenTree::Group(Group::new(Delimiter::Brace, TokenStream::new())), + ]), + ))]); + snapshot!(tokens as Stmt, @r#" + Stmt::Item(Item::Fn { + vis: Visibility::Inherited, + sig: Signature { + asyncness: Some, + ident: "f", + generics: Generics, + output: ReturnType::Default, + }, + block: Block { + stmts: [], + }, + }) + "#); + + let tokens = Group::new(Delimiter::None, quote!(let None = None)).to_token_stream(); + let stmts = Block::parse_within.parse2(tokens).unwrap(); + snapshot!(stmts, @r#" + [ + Stmt::Expr( + Expr::Group { + expr: Expr::Let { + pat: Pat::Ident { + ident: "None", + }, + expr: Expr::Path { + path: Path { + segments: [ + PathSegment { + ident: "None", + }, + ], + }, + }, + }, + }, + None, + ), + ] + "#); +} + +#[test] +fn test_let_dot_dot() { + let tokens = quote! { + let .. = 10; + }; + + snapshot!(tokens as Stmt, @r#" + Stmt::Local { + pat: Pat::Rest, + init: Some(LocalInit { + expr: Expr::Lit { + lit: 10, + }, + }), + } + "#); +} + +#[test] +fn test_let_else() { + let tokens = quote! { + let Some(x) = None else { return 0; }; + }; + + snapshot!(tokens as Stmt, @r#" + Stmt::Local { + pat: Pat::TupleStruct { + path: Path { + segments: [ + PathSegment { + ident: "Some", + }, + ], + }, + elems: [ + Pat::Ident { + ident: "x", + }, + ], + }, + init: Some(LocalInit { + expr: Expr::Path { + path: Path { + segments: [ + PathSegment { + ident: "None", + }, + ], + }, + }, + diverge: Some(Expr::Block { + block: Block { + stmts: [ + Stmt::Expr( + Expr::Return { + expr: Some(Expr::Lit { + lit: 0, + }), + }, + Some, + ), + ], + }, + }), + }), + } + "#); +} + +#[test] +fn test_macros() { + let tokens = quote! { + fn main() { + macro_rules! mac {} + thread_local! { static FOO } + println!(""); + vec![] + } + }; + + snapshot!(tokens as Stmt, @r#" + Stmt::Item(Item::Fn { + vis: Visibility::Inherited, + sig: Signature { + ident: "main", + generics: Generics, + output: ReturnType::Default, + }, + block: Block { + stmts: [ + Stmt::Item(Item::Macro { + ident: Some("mac"), + mac: Macro { + path: Path { + segments: [ + PathSegment { + ident: "macro_rules", + }, + ], + }, + delimiter: MacroDelimiter::Brace, + tokens: TokenStream(``), + }, + }), + Stmt::Macro { + mac: Macro { + path: Path { + segments: [ + PathSegment { + ident: "thread_local", + }, + ], + }, + delimiter: MacroDelimiter::Brace, + tokens: TokenStream(`static FOO`), + }, + }, + Stmt::Macro { + mac: Macro { + path: Path { + segments: [ + PathSegment { + ident: "println", + }, + ], + }, + delimiter: MacroDelimiter::Paren, + tokens: TokenStream(`""`), + }, + semi_token: Some, + }, + Stmt::Expr( + Expr::Macro { + mac: Macro { + path: Path { + segments: [ + PathSegment { + ident: "vec", + }, + ], + }, + delimiter: MacroDelimiter::Bracket, + tokens: TokenStream(``), + }, + }, + None, + ), + ], + }, + }) + "#); +} + +#[test] +fn test_early_parse_loop() { + // The following is an Expr::Loop followed by Expr::Tuple. It is not an + // Expr::Call. + let tokens = quote! { + loop {} + () + }; + + let stmts = Block::parse_within.parse2(tokens).unwrap(); + + snapshot!(stmts, @r#" + [ + Stmt::Expr( + Expr::Loop { + body: Block { + stmts: [], + }, + }, + None, + ), + Stmt::Expr( + Expr::Tuple, + None, + ), + ] + "#); + + let tokens = quote! { + 'a: loop {} + () + }; + + let stmts = Block::parse_within.parse2(tokens).unwrap(); + + snapshot!(stmts, @r#" + [ + Stmt::Expr( + Expr::Loop { + label: Some(Label { + name: Lifetime { + ident: "a", + }, + }), + body: Block { + stmts: [], + }, + }, + None, + ), + Stmt::Expr( + Expr::Tuple, + None, + ), + ] + "#); +} diff --git a/vendor/syn/tests/test_token_trees.rs b/vendor/syn/tests/test_token_trees.rs new file mode 100644 index 00000000..3dc3734c --- /dev/null +++ b/vendor/syn/tests/test_token_trees.rs @@ -0,0 +1,36 @@ +#![allow( + clippy::elidable_lifetime_names, + clippy::needless_lifetimes, + clippy::uninlined_format_args +)] + +#[macro_use] +mod macros; + +use proc_macro2::TokenStream; +use quote::quote; +use syn::Lit; + +#[test] +fn test_struct() { + let input = " + #[derive(Debug, Clone)] + pub struct Item { + pub ident: Ident, + pub attrs: Vec<Attribute>, + } + "; + + snapshot!(input as TokenStream, @r##" + TokenStream( + `# [derive (Debug , Clone)] pub struct Item { pub ident : Ident , pub attrs : Vec < Attribute >, }`, + ) + "##); +} + +#[test] +fn test_literal_mangling() { + let code = "0_4"; + let parsed: Lit = syn::parse_str(code).unwrap(); + assert_eq!(code, quote!(#parsed).to_string()); +} diff --git a/vendor/syn/tests/test_ty.rs b/vendor/syn/tests/test_ty.rs new file mode 100644 index 00000000..c85f592a --- /dev/null +++ b/vendor/syn/tests/test_ty.rs @@ -0,0 +1,469 @@ +#![allow( + clippy::elidable_lifetime_names, + clippy::needless_lifetimes, + clippy::uninlined_format_args +)] + +#[macro_use] +mod macros; + +use proc_macro2::{Delimiter, Group, Ident, Punct, Spacing, Span, TokenStream, TokenTree}; +use quote::{quote, ToTokens as _}; +use syn::punctuated::Punctuated; +use syn::{parse_quote, token, Token, Type, TypeTuple}; + +#[test] +fn test_mut_self() { + syn::parse_str::<Type>("fn(mut self)").unwrap(); + syn::parse_str::<Type>("fn(mut self,)").unwrap(); + syn::parse_str::<Type>("fn(mut self: ())").unwrap(); + syn::parse_str::<Type>("fn(mut self: ...)").unwrap_err(); + syn::parse_str::<Type>("fn(mut self: mut self)").unwrap_err(); + syn::parse_str::<Type>("fn(mut self::T)").unwrap_err(); +} + +#[test] +fn test_macro_variable_type() { + // mimics the token stream corresponding to `$ty<T>` + let tokens = TokenStream::from_iter([ + TokenTree::Group(Group::new(Delimiter::None, quote! { ty })), + TokenTree::Punct(Punct::new('<', Spacing::Alone)), + TokenTree::Ident(Ident::new("T", Span::call_site())), + TokenTree::Punct(Punct::new('>', Spacing::Alone)), + ]); + + snapshot!(tokens as Type, @r#" + Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "ty", + arguments: PathArguments::AngleBracketed { + args: [ + GenericArgument::Type(Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "T", + }, + ], + }, + }), + ], + }, + }, + ], + }, + } + "#); + + // mimics the token stream corresponding to `$ty::<T>` + let tokens = TokenStream::from_iter([ + TokenTree::Group(Group::new(Delimiter::None, quote! { ty })), + TokenTree::Punct(Punct::new(':', Spacing::Joint)), + TokenTree::Punct(Punct::new(':', Spacing::Alone)), + TokenTree::Punct(Punct::new('<', Spacing::Alone)), + TokenTree::Ident(Ident::new("T", Span::call_site())), + TokenTree::Punct(Punct::new('>', Spacing::Alone)), + ]); + + snapshot!(tokens as Type, @r#" + Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "ty", + arguments: PathArguments::AngleBracketed { + colon2_token: Some, + args: [ + GenericArgument::Type(Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "T", + }, + ], + }, + }), + ], + }, + }, + ], + }, + } + "#); +} + +#[test] +fn test_group_angle_brackets() { + // mimics the token stream corresponding to `Option<$ty>` + let tokens = TokenStream::from_iter([ + TokenTree::Ident(Ident::new("Option", Span::call_site())), + TokenTree::Punct(Punct::new('<', Spacing::Alone)), + TokenTree::Group(Group::new(Delimiter::None, quote! { Vec<u8> })), + TokenTree::Punct(Punct::new('>', Spacing::Alone)), + ]); + + snapshot!(tokens as Type, @r#" + Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "Option", + arguments: PathArguments::AngleBracketed { + args: [ + GenericArgument::Type(Type::Group { + elem: Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "Vec", + arguments: PathArguments::AngleBracketed { + args: [ + GenericArgument::Type(Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "u8", + }, + ], + }, + }), + ], + }, + }, + ], + }, + }, + }), + ], + }, + }, + ], + }, + } + "#); +} + +#[test] +fn test_group_colons() { + // mimics the token stream corresponding to `$ty::Item` + let tokens = TokenStream::from_iter([ + TokenTree::Group(Group::new(Delimiter::None, quote! { Vec<u8> })), + TokenTree::Punct(Punct::new(':', Spacing::Joint)), + TokenTree::Punct(Punct::new(':', Spacing::Alone)), + TokenTree::Ident(Ident::new("Item", Span::call_site())), + ]); + + snapshot!(tokens as Type, @r#" + Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "Vec", + arguments: PathArguments::AngleBracketed { + args: [ + GenericArgument::Type(Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "u8", + }, + ], + }, + }), + ], + }, + }, + Token![::], + PathSegment { + ident: "Item", + }, + ], + }, + } + "#); + + let tokens = TokenStream::from_iter([ + TokenTree::Group(Group::new(Delimiter::None, quote! { [T] })), + TokenTree::Punct(Punct::new(':', Spacing::Joint)), + TokenTree::Punct(Punct::new(':', Spacing::Alone)), + TokenTree::Ident(Ident::new("Element", Span::call_site())), + ]); + + snapshot!(tokens as Type, @r#" + Type::Path { + qself: Some(QSelf { + ty: Type::Slice { + elem: Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "T", + }, + ], + }, + }, + }, + position: 0, + }), + path: Path { + leading_colon: Some, + segments: [ + PathSegment { + ident: "Element", + }, + ], + }, + } + "#); +} + +#[test] +fn test_trait_object() { + let tokens = quote!(dyn for<'a> Trait<'a> + 'static); + snapshot!(tokens as Type, @r#" + Type::TraitObject { + dyn_token: Some, + bounds: [ + TypeParamBound::Trait(TraitBound { + lifetimes: Some(BoundLifetimes { + lifetimes: [ + GenericParam::Lifetime(LifetimeParam { + lifetime: Lifetime { + ident: "a", + }, + }), + ], + }), + path: Path { + segments: [ + PathSegment { + ident: "Trait", + arguments: PathArguments::AngleBracketed { + args: [ + GenericArgument::Lifetime(Lifetime { + ident: "a", + }), + ], + }, + }, + ], + }, + }), + Token![+], + TypeParamBound::Lifetime { + ident: "static", + }, + ], + } + "#); + + let tokens = quote!(dyn 'a + Trait); + snapshot!(tokens as Type, @r#" + Type::TraitObject { + dyn_token: Some, + bounds: [ + TypeParamBound::Lifetime { + ident: "a", + }, + Token![+], + TypeParamBound::Trait(TraitBound { + path: Path { + segments: [ + PathSegment { + ident: "Trait", + }, + ], + }, + }), + ], + } + "#); + + // None of the following are valid Rust types. + syn::parse_str::<Type>("for<'a> dyn Trait<'a>").unwrap_err(); + syn::parse_str::<Type>("dyn for<'a> 'a + Trait").unwrap_err(); +} + +#[test] +fn test_trailing_plus() { + #[rustfmt::skip] + let tokens = quote!(impl Trait +); + snapshot!(tokens as Type, @r#" + Type::ImplTrait { + bounds: [ + TypeParamBound::Trait(TraitBound { + path: Path { + segments: [ + PathSegment { + ident: "Trait", + }, + ], + }, + }), + Token![+], + ], + } + "#); + + #[rustfmt::skip] + let tokens = quote!(dyn Trait +); + snapshot!(tokens as Type, @r#" + Type::TraitObject { + dyn_token: Some, + bounds: [ + TypeParamBound::Trait(TraitBound { + path: Path { + segments: [ + PathSegment { + ident: "Trait", + }, + ], + }, + }), + Token![+], + ], + } + "#); + + #[rustfmt::skip] + let tokens = quote!(Trait +); + snapshot!(tokens as Type, @r#" + Type::TraitObject { + bounds: [ + TypeParamBound::Trait(TraitBound { + path: Path { + segments: [ + PathSegment { + ident: "Trait", + }, + ], + }, + }), + Token![+], + ], + } + "#); +} + +#[test] +fn test_tuple_comma() { + let mut expr = TypeTuple { + paren_token: token::Paren::default(), + elems: Punctuated::new(), + }; + snapshot!(expr.to_token_stream() as Type, @"Type::Tuple"); + + expr.elems.push_value(parse_quote!(_)); + // Must not parse to Type::Paren + snapshot!(expr.to_token_stream() as Type, @r#" + Type::Tuple { + elems: [ + Type::Infer, + Token![,], + ], + } + "#); + + expr.elems.push_punct(<Token![,]>::default()); + snapshot!(expr.to_token_stream() as Type, @r#" + Type::Tuple { + elems: [ + Type::Infer, + Token![,], + ], + } + "#); + + expr.elems.push_value(parse_quote!(_)); + snapshot!(expr.to_token_stream() as Type, @r#" + Type::Tuple { + elems: [ + Type::Infer, + Token![,], + Type::Infer, + ], + } + "#); + + expr.elems.push_punct(<Token![,]>::default()); + snapshot!(expr.to_token_stream() as Type, @r#" + Type::Tuple { + elems: [ + Type::Infer, + Token![,], + Type::Infer, + Token![,], + ], + } + "#); +} + +#[test] +fn test_impl_trait_use() { + let tokens = quote! { + impl Sized + use<'_, 'a, A, Test> + }; + + snapshot!(tokens as Type, @r#" + Type::ImplTrait { + bounds: [ + TypeParamBound::Trait(TraitBound { + path: Path { + segments: [ + PathSegment { + ident: "Sized", + }, + ], + }, + }), + Token![+], + TypeParamBound::PreciseCapture(PreciseCapture { + params: [ + CapturedParam::Lifetime(Lifetime { + ident: "_", + }), + Token![,], + CapturedParam::Lifetime(Lifetime { + ident: "a", + }), + Token![,], + CapturedParam::Ident("A"), + Token![,], + CapturedParam::Ident("Test"), + ], + }), + ], + } + "#); + + let trailing = quote! { + impl Sized + use<'_,> + }; + + snapshot!(trailing as Type, @r#" + Type::ImplTrait { + bounds: [ + TypeParamBound::Trait(TraitBound { + path: Path { + segments: [ + PathSegment { + ident: "Sized", + }, + ], + }, + }), + Token![+], + TypeParamBound::PreciseCapture(PreciseCapture { + params: [ + CapturedParam::Lifetime(Lifetime { + ident: "_", + }), + Token![,], + ], + }), + ], + } + "#); +} diff --git a/vendor/syn/tests/test_unparenthesize.rs b/vendor/syn/tests/test_unparenthesize.rs new file mode 100644 index 00000000..5fa2e59e --- /dev/null +++ b/vendor/syn/tests/test_unparenthesize.rs @@ -0,0 +1,70 @@ +#![cfg(not(miri))] +#![recursion_limit = "1024"] +#![feature(rustc_private)] +#![allow( + clippy::elidable_lifetime_names, + clippy::manual_assert, + clippy::match_like_matches_macro, + clippy::needless_lifetimes, + clippy::uninlined_format_args +)] + +use crate::common::visit::{AsIfPrinted, FlattenParens}; +use quote::ToTokens as _; +use std::fs; +use std::panic; +use std::path::Path; +use std::sync::atomic::{AtomicUsize, Ordering}; +use syn::visit_mut::VisitMut as _; + +#[macro_use] +mod macros; + +mod common; +mod repo; + +#[test] +fn test_unparenthesize() { + repo::rayon_init(); + repo::clone_rust(); + + let failed = AtomicUsize::new(0); + + repo::for_each_rust_file(|path| test(path, &failed)); + + let failed = failed.into_inner(); + if failed > 0 { + panic!("{} failures", failed); + } +} + +fn test(path: &Path, failed: &AtomicUsize) { + let content = fs::read_to_string(path).unwrap(); + + match panic::catch_unwind(|| -> syn::Result<()> { + let mut before = syn::parse_file(&content)?; + FlattenParens::discard_attrs().visit_file_mut(&mut before); + let printed = before.to_token_stream(); + let mut after = syn::parse2::<syn::File>(printed.clone())?; + FlattenParens::discard_attrs().visit_file_mut(&mut after); + // Normalize features that we expect Syn not to print. + AsIfPrinted.visit_file_mut(&mut before); + if before != after { + errorf!("=== {}\n", path.display()); + if failed.fetch_add(1, Ordering::Relaxed) == 0 { + errorf!("BEFORE:\n{:#?}\nAFTER:\n{:#?}\n", before, after); + } + } + Ok(()) + }) { + Err(_) => { + errorf!("=== {}: syn panic\n", path.display()); + failed.fetch_add(1, Ordering::Relaxed); + } + Ok(Err(msg)) => { + errorf!("=== {}: syn failed to parse\n{:?}\n", path.display(), msg); + failed.fetch_add(1, Ordering::Relaxed); + } + Ok(Ok(())) => {} + } +} diff --git a/vendor/syn/tests/test_visibility.rs b/vendor/syn/tests/test_visibility.rs new file mode 100644 index 00000000..0bc98b15 --- /dev/null +++ b/vendor/syn/tests/test_visibility.rs @@ -0,0 +1,189 @@ +#![allow( + clippy::elidable_lifetime_names, + clippy::needless_lifetimes, + clippy::uninlined_format_args +)] + +#[macro_use] +mod macros; + +use proc_macro2::{Delimiter, Group, Ident, Punct, Spacing, Span, TokenStream, TokenTree}; +use quote::quote; +use syn::parse::{Parse, ParseStream}; +use syn::{DeriveInput, Result, Visibility}; + +#[derive(Debug)] +struct VisRest { + vis: Visibility, + rest: TokenStream, +} + +impl Parse for VisRest { + fn parse(input: ParseStream) -> Result<Self> { + Ok(VisRest { + vis: input.parse()?, + rest: input.parse()?, + }) + } +} + +macro_rules! assert_vis_parse { + ($input:expr, Ok($p:pat)) => { + assert_vis_parse!($input, Ok($p) + ""); + }; + + ($input:expr, Ok($p:pat) + $rest:expr) => { + let expected = $rest.parse::<TokenStream>().unwrap(); + let parse: VisRest = syn::parse_str($input).unwrap(); + + match parse.vis { + $p => {} + _ => panic!("expected {}, got {:?}", stringify!($p), parse.vis), + } + + // NOTE: Round-trips through `to_string` to avoid potential whitespace + // diffs. + assert_eq!(parse.rest.to_string(), expected.to_string()); + }; + + ($input:expr, Err) => { + syn::parse2::<VisRest>($input.parse().unwrap()).unwrap_err(); + }; +} + +#[test] +fn test_pub() { + assert_vis_parse!("pub", Ok(Visibility::Public(_))); +} + +#[test] +fn test_inherited() { + assert_vis_parse!("", Ok(Visibility::Inherited)); +} + +#[test] +fn test_in() { + assert_vis_parse!("pub(in foo::bar)", Ok(Visibility::Restricted(_))); +} + +#[test] +fn test_pub_crate() { + assert_vis_parse!("pub(crate)", Ok(Visibility::Restricted(_))); +} + +#[test] +fn test_pub_self() { + assert_vis_parse!("pub(self)", Ok(Visibility::Restricted(_))); +} + +#[test] +fn test_pub_super() { + assert_vis_parse!("pub(super)", Ok(Visibility::Restricted(_))); +} + +#[test] +fn test_missing_in() { + assert_vis_parse!("pub(foo::bar)", Ok(Visibility::Public(_)) + "(foo::bar)"); +} + +#[test] +fn test_missing_in_path() { + assert_vis_parse!("pub(in)", Err); +} + +#[test] +fn test_crate_path() { + assert_vis_parse!( + "pub(crate::A, crate::B)", + Ok(Visibility::Public(_)) + "(crate::A, crate::B)" + ); +} + +#[test] +fn test_junk_after_in() { + assert_vis_parse!("pub(in some::path @@garbage)", Err); +} + +#[test] +fn test_inherited_vis_named_field() { + // mimics `struct S { $vis $field: () }` where $vis is empty + let tokens = TokenStream::from_iter([ + TokenTree::Ident(Ident::new("struct", Span::call_site())), + TokenTree::Ident(Ident::new("S", Span::call_site())), + TokenTree::Group(Group::new( + Delimiter::Brace, + TokenStream::from_iter([ + TokenTree::Group(Group::new(Delimiter::None, TokenStream::new())), + TokenTree::Group(Group::new(Delimiter::None, quote!(f))), + TokenTree::Punct(Punct::new(':', Spacing::Alone)), + TokenTree::Group(Group::new(Delimiter::Parenthesis, TokenStream::new())), + ]), + )), + ]); + + snapshot!(tokens as DeriveInput, @r#" + DeriveInput { + vis: Visibility::Inherited, + ident: "S", + generics: Generics, + data: Data::Struct { + fields: Fields::Named { + named: [ + Field { + vis: Visibility::Inherited, + ident: Some("f"), + colon_token: Some, + ty: Type::Tuple, + }, + ], + }, + }, + } + "#); +} + +#[test] +fn test_inherited_vis_unnamed_field() { + // mimics `struct S($vis $ty);` where $vis is empty + let tokens = TokenStream::from_iter([ + TokenTree::Ident(Ident::new("struct", Span::call_site())), + TokenTree::Ident(Ident::new("S", Span::call_site())), + TokenTree::Group(Group::new( + Delimiter::Parenthesis, + TokenStream::from_iter([ + TokenTree::Group(Group::new(Delimiter::None, TokenStream::new())), + TokenTree::Group(Group::new(Delimiter::None, quote!(str))), + ]), + )), + TokenTree::Punct(Punct::new(';', Spacing::Alone)), + ]); + + snapshot!(tokens as DeriveInput, @r#" + DeriveInput { + vis: Visibility::Inherited, + ident: "S", + generics: Generics, + data: Data::Struct { + fields: Fields::Unnamed { + unnamed: [ + Field { + vis: Visibility::Inherited, + ty: Type::Group { + elem: Type::Path { + path: Path { + segments: [ + PathSegment { + ident: "str", + }, + ], + }, + }, + }, + }, + ], + }, + semi_token: Some, + }, + } + "#); +} diff --git a/vendor/syn/tests/zzz_stable.rs b/vendor/syn/tests/zzz_stable.rs new file mode 100644 index 00000000..a1a670d9 --- /dev/null +++ b/vendor/syn/tests/zzz_stable.rs @@ -0,0 +1,33 @@ +#![cfg(syn_disable_nightly_tests)] + +use std::io::{self, Write}; +use termcolor::{Color, ColorChoice, ColorSpec, StandardStream, WriteColor}; + +const MSG: &str = "\ +‖ +‖ WARNING: +‖ This is not a nightly compiler so not all tests were able to +‖ run. Syn includes tests that compare Syn's parser against the +‖ compiler's parser, which requires access to unstable librustc +‖ data structures and a nightly compiler. +‖ +"; + +#[test] +fn notice() -> io::Result<()> { + let header = "WARNING"; + let index_of_header = MSG.find(header).unwrap(); + let before = &MSG[..index_of_header]; + let after = &MSG[index_of_header + header.len()..]; + + let mut stderr = StandardStream::stderr(ColorChoice::Auto); + stderr.set_color(ColorSpec::new().set_fg(Some(Color::Yellow)))?; + write!(&mut stderr, "{}", before)?; + stderr.set_color(ColorSpec::new().set_bold(true).set_fg(Some(Color::Yellow)))?; + write!(&mut stderr, "{}", header)?; + stderr.set_color(ColorSpec::new().set_fg(Some(Color::Yellow)))?; + write!(&mut stderr, "{}", after)?; + stderr.reset()?; + + Ok(()) +} |