chore: add vendor directory

1 files changed, 808 insertions, 0 deletions

diff --git a/vendor/enum-ordinalize-derive/src/lib.rs b/vendor/enum-ordinalize-derive/src/lib.rs
new file mode 100644
index 00000000..5af4b2ca
--- /dev/null
+++ b/vendor/enum-ordinalize-derive/src/lib.rs
@@ -0,0 +1,808 @@
+/*!
+# Enum Ordinalize Derive
+
+This library enables enums to not only obtain the ordinal values of their variants but also allows for the construction of enums from an ordinal value. See the [`enum-ordinalize`](https://crates.io/crates/enum-ordinalize) crate.
+*/
+
+#![no_std]
+
+#[macro_use]
+extern crate alloc;
+
+mod int128;
+mod int_wrapper;
+mod panic;
+mod variant_type;
+
+use alloc::{string::ToString, vec::Vec};
+
+use proc_macro::TokenStream;
+use quote::quote;
+use syn::{
+    parse::{Parse, ParseStream},
+    parse_macro_input,
+    punctuated::Punctuated,
+    spanned::Spanned,
+    Data, DeriveInput, Expr, Fields, Ident, Lit, Meta, Token, UnOp, Visibility,
+};
+use variant_type::VariantType;
+
+use crate::{int128::Int128, int_wrapper::IntWrapper};
+
+#[proc_macro_derive(Ordinalize, attributes(ordinalize))]
+pub fn ordinalize_derive(input: TokenStream) -> TokenStream {
+    struct ConstMember {
+        vis:      Option<Visibility>,
+        ident:    Ident,
+        meta:     Vec<Meta>,
+        function: bool,
+    }
+
+    impl Parse for ConstMember {
+        #[inline]
+        fn parse(input: ParseStream) -> syn::Result<Self> {
+            let vis = input.parse::<Visibility>().ok();
+
+            let _ = input.parse::<Token![const]>();
+
+            let function = input.parse::<Token![fn]>().is_ok();
+
+            let ident = input.parse::<Ident>()?;
+
+            let mut meta = Vec::new();
+
+            if !input.is_empty() {
+                input.parse::<Token![,]>()?;
+
+                if !input.is_empty() {
+                    let result = Punctuated::<Meta, Token![,]>::parse_terminated(input)?;
+
+                    let mut has_inline = false;
+
+                    for m in result {
+                        if m.path().is_ident("inline") {
+                            has_inline = true;
+                        }
+
+                        meta.push(m);
+                    }
+
+                    if !has_inline {
+                        meta.push(syn::parse_str("inline")?);
+                    }
+                }
+            }
+
+            Ok(Self {
+                vis,
+                ident,
+                meta,
+                function,
+            })
+        }
+    }
+
+    struct ConstFunctionMember {
+        vis:   Option<Visibility>,
+        ident: Ident,
+        meta:  Vec<Meta>,
+    }
+
+    impl Parse for ConstFunctionMember {
+        #[inline]
+        fn parse(input: ParseStream) -> syn::Result<Self> {
+            let vis = input.parse::<Visibility>().ok();
+
+            let _ = input.parse::<Token![const]>();
+
+            input.parse::<Token![fn]>()?;
+
+            let ident = input.parse::<Ident>()?;
+
+            let mut meta = Vec::new();
+
+            if !input.is_empty() {
+                input.parse::<Token![,]>()?;
+
+                if !input.is_empty() {
+                    let result = Punctuated::<Meta, Token![,]>::parse_terminated(input)?;
+
+                    let mut has_inline = false;
+
+                    for m in result {
+                        if m.path().is_ident("inline") {
+                            has_inline = true;
+                        }
+
+                        meta.push(m);
+                    }
+
+                    if !has_inline {
+                        meta.push(syn::parse_str("inline")?);
+                    }
+                }
+            }
+
+            Ok(Self {
+                vis,
+                ident,
+                meta,
+            })
+        }
+    }
+
+    struct MyDeriveInput {
+        ast:                        DeriveInput,
+        variant_type:               VariantType,
+        values:                     Vec<IntWrapper>,
+        variant_idents:             Vec<Ident>,
+        use_constant_counter:       bool,
+        enable_trait:               bool,
+        enable_variant_count:       Option<ConstMember>,
+        enable_variants:            Option<ConstMember>,
+        enable_values:              Option<ConstMember>,
+        enable_from_ordinal_unsafe: Option<ConstFunctionMember>,
+        enable_from_ordinal:        Option<ConstFunctionMember>,
+        enable_ordinal:             Option<ConstFunctionMember>,
+    }
+
+    impl Parse for MyDeriveInput {
+        fn parse(input: ParseStream) -> syn::Result<Self> {
+            let ast = input.parse::<DeriveInput>()?;
+
+            let mut variant_type = VariantType::default();
+            let mut enable_trait = cfg!(feature = "traits");
+            let mut enable_variant_count = None;
+            let mut enable_variants = None;
+            let mut enable_values = None;
+            let mut enable_from_ordinal_unsafe = None;
+            let mut enable_from_ordinal = None;
+            let mut enable_ordinal = None;
+
+            for attr in ast.attrs.iter() {
+                let path = attr.path();
+
+                if let Some(ident) = path.get_ident() {
+                    match ident.to_string().as_str() {
+                        "repr" => {
+                            // #[repr(u8)], #[repr(u16)], ..., etc.
+                            if let Meta::List(list) = &attr.meta {
+                                let result = list.parse_args_with(
+                                    Punctuated::<Ident, Token![,]>::parse_terminated,
+                                )?;
+
+                                if let Some(value) = result.into_iter().next() {
+                                    variant_type = VariantType::from_str(value.to_string());
+                                }
+                            }
+
+                            break;
+                        },
+                        "ordinalize" => {
+                            if let Meta::List(list) = &attr.meta {
+                                let result = list.parse_args_with(
+                                    Punctuated::<Meta, Token![,]>::parse_terminated,
+                                )?;
+
+                                for meta in result {
+                                    let path = meta.path();
+
+                                    if let Some(ident) = path.get_ident() {
+                                        match ident.to_string().as_str() {
+                                            "impl_trait" => {
+                                                if let Meta::NameValue(meta) = &meta {
+                                                    if let Expr::Lit(lit) = &meta.value {
+                                                        if let Lit::Bool(value) = &lit.lit {
+                                                            if cfg!(feature = "traits") {
+                                                                enable_trait = value.value;
+                                                            }
+                                                        } else {
+                                                            return Err(
+                                                                panic::bool_attribute_usage(
+                                                                    ident,
+                                                                    ident.span(),
+                                                                ),
+                                                            );
+                                                        }
+                                                    } else {
+                                                        return Err(panic::bool_attribute_usage(
+                                                            ident,
+                                                            ident.span(),
+                                                        ));
+                                                    }
+                                                } else {
+                                                    return Err(panic::bool_attribute_usage(
+                                                        ident,
+                                                        ident.span(),
+                                                    ));
+                                                }
+                                            },
+                                            "variant_count" => {
+                                                if let Meta::List(list) = &meta {
+                                                    enable_variant_count = Some(list.parse_args()?);
+                                                } else {
+                                                    return Err(panic::list_attribute_usage(
+                                                        ident,
+                                                        ident.span(),
+                                                    ));
+                                                }
+                                            },
+                                            "variants" => {
+                                                if let Meta::List(list) = &meta {
+                                                    enable_variants = Some(list.parse_args()?);
+                                                } else {
+                                                    return Err(panic::list_attribute_usage(
+                                                        ident,
+                                                        ident.span(),
+                                                    ));
+                                                }
+                                            },
+                                            "values" => {
+                                                if let Meta::List(list) = &meta {
+                                                    enable_values = Some(list.parse_args()?);
+                                                } else {
+                                                    return Err(panic::list_attribute_usage(
+                                                        ident,
+                                                        ident.span(),
+                                                    ));
+                                                }
+                                            },
+                                            "from_ordinal_unsafe" => {
+                                                if let Meta::List(list) = &meta {
+                                                    enable_from_ordinal_unsafe =
+                                                        Some(list.parse_args()?);
+                                                } else {
+                                                    return Err(panic::list_attribute_usage(
+                                                        ident,
+                                                        ident.span(),
+                                                    ));
+                                                }
+                                            },
+                                            "from_ordinal" => {
+                                                if let Meta::List(list) = &meta {
+                                                    enable_from_ordinal = Some(list.parse_args()?);
+                                                } else {
+                                                    return Err(panic::list_attribute_usage(
+                                                        ident,
+                                                        ident.span(),
+                                                    ));
+                                                }
+                                            },
+                                            "ordinal" => {
+                                                if let Meta::List(list) = &meta {
+                                                    enable_ordinal = Some(list.parse_args()?);
+                                                } else {
+                                                    return Err(panic::list_attribute_usage(
+                                                        ident,
+                                                        ident.span(),
+                                                    ));
+                                                }
+                                            },
+                                            _ => {
+                                                return Err(panic::sub_attributes_for_ordinalize(
+                                                    ident.span(),
+                                                ));
+                                            },
+                                        }
+                                    } else {
+                                        return Err(panic::list_attribute_usage(
+                                            ident,
+                                            ident.span(),
+                                        ));
+                                    }
+                                }
+                            } else {
+                                return Err(panic::list_attribute_usage(ident, ident.span()));
+                            }
+                        },
+                        _ => (),
+                    }
+                }
+            }
+
+            let name = &ast.ident;
+
+            if let Data::Enum(data) = &ast.data {
+                let variant_count = data.variants.len();
+
+                if variant_count == 0 {
+                    return Err(panic::no_variant(name.span()));
+                }
+
+                let mut values: Vec<IntWrapper> = Vec::with_capacity(variant_count);
+                let mut variant_idents: Vec<Ident> = Vec::with_capacity(variant_count);
+
+                let mut use_constant_counter = false;
+
+                if let VariantType::NonDetermined = variant_type {
+                    let mut min = i128::MAX;
+                    let mut max = i128::MIN;
+                    let mut counter = 0;
+
+                    for variant in data.variants.iter() {
+                        if let Fields::Unit = variant.fields {
+                            if let Some((_, exp)) = variant.discriminant.as_ref() {
+                                match exp {
+                                    Expr::Lit(lit) => {
+                                        if let Lit::Int(lit) = &lit.lit {
+                                            counter = lit.base10_parse().map_err(|error| {
+                                                syn::Error::new(lit.span(), error)
+                                            })?;
+                                        } else {
+                                            return Err(panic::unsupported_discriminant(
+                                                lit.span(),
+                                            ));
+                                        }
+                                    },
+                                    Expr::Unary(unary) => {
+                                        if let UnOp::Neg(_) = unary.op {
+                                            match unary.expr.as_ref() {
+                                            Expr::Lit(lit) => {
+                                                if let Lit::Int(lit) = &lit.lit {
+                                                    match lit.base10_parse::<i128>() {
+                                                        Ok(i) => {
+                                                            counter = -i;
+                                                        },
+                                                        Err(error) => {
+                                                            // overflow
+                                                            if lit.base10_digits() == "170141183460469231731687303715884105728" {
+                                                                counter = i128::MIN;
+                                                            } else {
+                                                                return Err(syn::Error::new(lit.span(), error));
+                                                            }
+                                                        },
+                                                    }
+                                                } else {
+                                                    return Err(panic::unsupported_discriminant(lit.span()));
+                                                }
+                                            },
+                                            Expr::Path(_)
+                                            | Expr::Cast(_)
+                                            | Expr::Binary(_)
+                                            | Expr::Call(_) => {
+                                                return Err(panic::constant_variable_on_non_determined_size_enum(unary.expr.span()))
+                                            },
+                                            _ => return Err(panic::unsupported_discriminant(unary.expr.span())),
+                                        }
+                                        } else {
+                                            return Err(panic::unsupported_discriminant(
+                                                unary.op.span(),
+                                            ));
+                                        }
+                                    },
+                                    Expr::Path(_)
+                                    | Expr::Cast(_)
+                                    | Expr::Binary(_)
+                                    | Expr::Call(_) => {
+                                        return Err(
+                                            panic::constant_variable_on_non_determined_size_enum(
+                                                exp.span(),
+                                            ),
+                                        )
+                                    },
+                                    _ => return Err(panic::unsupported_discriminant(exp.span())),
+                                }
+                            };
+
+                            if min > counter {
+                                min = counter;
+                            }
+
+                            if max < counter {
+                                max = counter;
+                            }
+
+                            variant_idents.push(variant.ident.clone());
+
+                            values.push(IntWrapper::from(counter));
+
+                            counter = counter.saturating_add(1);
+                        } else {
+                            return Err(panic::not_unit_variant(variant.span()));
+                        }
+                    }
+
+                    if min >= i8::MIN as i128 && max <= i8::MAX as i128 {
+                        variant_type = VariantType::I8;
+                    } else if min >= i16::MIN as i128 && max <= i16::MAX as i128 {
+                        variant_type = VariantType::I16;
+                    } else if min >= i32::MIN as i128 && max <= i32::MAX as i128 {
+                        variant_type = VariantType::I32;
+                    } else if min >= i64::MIN as i128 && max <= i64::MAX as i128 {
+                        variant_type = VariantType::I64;
+                    } else {
+                        variant_type = VariantType::I128;
+                    }
+                } else {
+                    let mut counter = Int128::ZERO;
+                    let mut constant_counter = 0;
+                    let mut last_exp: Option<&Expr> = None;
+
+                    for variant in data.variants.iter() {
+                        if let Fields::Unit = variant.fields {
+                            if let Some((_, exp)) = variant.discriminant.as_ref() {
+                                match exp {
+                                    Expr::Lit(lit) => {
+                                        if let Lit::Int(lit) = &lit.lit {
+                                            counter = lit.base10_parse().map_err(|error| {
+                                                syn::Error::new(lit.span(), error)
+                                            })?;
+
+                                            values.push(IntWrapper::from(counter));
+
+                                            counter.inc();
+
+                                            last_exp = None;
+                                        } else {
+                                            return Err(panic::unsupported_discriminant(
+                                                lit.span(),
+                                            ));
+                                        }
+                                    },
+                                    Expr::Unary(unary) => {
+                                        if let UnOp::Neg(_) = unary.op {
+                                            match unary.expr.as_ref() {
+                                                Expr::Lit(lit) => {
+                                                    if let Lit::Int(lit) = &lit.lit {
+                                                        counter = -lit.base10_parse().map_err(
+                                                            |error| {
+                                                                syn::Error::new(lit.span(), error)
+                                                            },
+                                                        )?;
+
+                                                        values.push(IntWrapper::from(counter));
+
+                                                        counter.inc();
+
+                                                        last_exp = None;
+                                                    } else {
+                                                        return Err(
+                                                            panic::unsupported_discriminant(
+                                                                lit.span(),
+                                                            ),
+                                                        );
+                                                    }
+                                                },
+                                                Expr::Path(_) => {
+                                                    values.push(IntWrapper::from((exp, 0)));
+
+                                                    last_exp = Some(exp);
+                                                    constant_counter = 1;
+                                                },
+                                                Expr::Cast(_) | Expr::Binary(_) | Expr::Call(_) => {
+                                                    values.push(IntWrapper::from((exp, 0)));
+
+                                                    last_exp = Some(exp);
+                                                    constant_counter = 1;
+
+                                                    use_constant_counter = true;
+                                                },
+                                                _ => {
+                                                    return Err(panic::unsupported_discriminant(
+                                                        exp.span(),
+                                                    ));
+                                                },
+                                            }
+                                        } else {
+                                            return Err(panic::unsupported_discriminant(
+                                                unary.op.span(),
+                                            ));
+                                        }
+                                    },
+                                    Expr::Path(_) => {
+                                        values.push(IntWrapper::from((exp, 0)));
+
+                                        last_exp = Some(exp);
+                                        constant_counter = 1;
+                                    },
+                                    Expr::Cast(_) | Expr::Binary(_) | Expr::Call(_) => {
+                                        values.push(IntWrapper::from((exp, 0)));
+
+                                        last_exp = Some(exp);
+                                        constant_counter = 1;
+
+                                        use_constant_counter = true;
+                                    },
+                                    _ => return Err(panic::unsupported_discriminant(exp.span())),
+                                }
+                            } else if let Some(exp) = last_exp {
+                                values.push(IntWrapper::from((exp, constant_counter)));
+
+                                constant_counter += 1;
+
+                                use_constant_counter = true;
+                            } else {
+                                values.push(IntWrapper::from(counter));
+
+                                counter.inc();
+                            }
+
+                            variant_idents.push(variant.ident.clone());
+                        } else {
+                            return Err(panic::not_unit_variant(variant.span()));
+                        }
+                    }
+                }
+
+                Ok(MyDeriveInput {
+                    ast,
+                    variant_type,
+                    values,
+                    variant_idents,
+                    use_constant_counter,
+                    enable_trait,
+                    enable_variant_count,
+                    enable_variants,
+                    enable_values,
+                    enable_from_ordinal_unsafe,
+                    enable_from_ordinal,
+                    enable_ordinal,
+                })
+            } else {
+                Err(panic::not_enum(ast.ident.span()))
+            }
+        }
+    }
+
+    // Parse the token stream
+    let derive_input = parse_macro_input!(input as MyDeriveInput);
+
+    let MyDeriveInput {
+        ast,
+        variant_type,
+        values,
+        variant_idents,
+        use_constant_counter,
+        enable_trait,
+        enable_variant_count,
+        enable_variants,
+        enable_values,
+        enable_ordinal,
+        enable_from_ordinal_unsafe,
+        enable_from_ordinal,
+    } = derive_input;
+
+    // Get the identifier of the type.
+    let name = &ast.ident;
+
+    let variant_count = values.len();
+
+    let (impl_generics, ty_generics, where_clause) = ast.generics.split_for_impl();
+
+    // Build the code
+    let mut expanded = proc_macro2::TokenStream::new();
+
+    if enable_trait {
+        #[cfg(feature = "traits")]
+        {
+            let from_ordinal_unsafe = if variant_count == 1 {
+                let variant_ident = &variant_idents[0];
+
+                quote! {
+                    #[inline]
+                    unsafe fn from_ordinal_unsafe(_number: #variant_type) -> Self {
+                        Self::#variant_ident
+                    }
+                }
+            } else {
+                quote! {
+                    #[inline]
+                    unsafe fn from_ordinal_unsafe(number: #variant_type) -> Self {
+                        ::core::mem::transmute(number)
+                    }
+                }
+            };
+
+            let from_ordinal = if use_constant_counter {
+                quote! {
+                    #[inline]
+                    fn from_ordinal(number: #variant_type) -> Option<Self> {
+                        if false {
+                            unreachable!()
+                        } #( else if number == #values {
+                            Some(Self::#variant_idents)
+                        } )* else {
+                            None
+                        }
+                    }
+                }
+            } else {
+                quote! {
+                    #[inline]
+                    fn from_ordinal(number: #variant_type) -> Option<Self> {
+                        match number{
+                            #(
+                                #values => Some(Self::#variant_idents),
+                            )*
+                            _ => None
+                        }
+                    }
+                }
+            };
+
+            expanded.extend(quote! {
+                impl #impl_generics Ordinalize for #name #ty_generics #where_clause {
+                    type VariantType = #variant_type;
+
+                    const VARIANT_COUNT: usize = #variant_count;
+
+                    const VARIANTS: &'static [Self] = &[#( Self::#variant_idents, )*];
+
+                    const VALUES: &'static [#variant_type] = &[#( #values, )*];
+
+                    #[inline]
+                    fn ordinal(&self) -> #variant_type {
+                        match self {
+                            #(
+                                Self::#variant_idents => #values,
+                            )*
+                        }
+                    }
+
+                    #from_ordinal_unsafe
+
+                    #from_ordinal
+                }
+            });
+        }
+    }
+
+    let mut expanded_2 = proc_macro2::TokenStream::new();
+
+    if let Some(ConstMember {
+        vis,
+        ident,
+        meta,
+        function,
+    }) = enable_variant_count
+    {
+        expanded_2.extend(if function {
+            quote! {
+                #(#[#meta])*
+                #vis const fn #ident () -> usize {
+                    #variant_count
+                }
+            }
+        } else {
+            quote! {
+                #(#[#meta])*
+                #vis const #ident: usize = #variant_count;
+            }
+        });
+    }
+
+    if let Some(ConstMember {
+        vis,
+        ident,
+        meta,
+        function,
+    }) = enable_variants
+    {
+        expanded_2.extend(if function {
+            quote! {
+                #(#[#meta])*
+                #vis const fn #ident () -> [Self; #variant_count] {
+                    [#( Self::#variant_idents, )*]
+                }
+            }
+        } else {
+            quote! {
+                #(#[#meta])*
+                #vis const #ident: [Self; #variant_count] = [#( Self::#variant_idents, )*];
+            }
+        });
+    }
+
+    if let Some(ConstMember {
+        vis,
+        ident,
+        meta,
+        function,
+    }) = enable_values
+    {
+        expanded_2.extend(if function {
+            quote! {
+                #(#[#meta])*
+                #vis const fn #ident () -> [#variant_type; #variant_count] {
+                    [#( #values, )*]
+                }
+            }
+        } else {
+            quote! {
+                #(#[#meta])*
+                #vis const #ident: [#variant_type; #variant_count] = [#( #values, )*];
+            }
+        });
+    }
+
+    if let Some(ConstFunctionMember {
+        vis,
+        ident,
+        meta,
+    }) = enable_from_ordinal_unsafe
+    {
+        let from_ordinal_unsafe = if variant_count == 1 {
+            let variant_ident = &variant_idents[0];
+
+            quote! {
+                #(#[#meta])*
+                #vis const unsafe fn #ident (_number: #variant_type) -> Self {
+                    Self::#variant_ident
+                }
+            }
+        } else {
+            quote! {
+                #(#[#meta])*
+                #vis const unsafe fn #ident (number: #variant_type) -> Self {
+                    ::core::mem::transmute(number)
+                }
+            }
+        };
+
+        expanded_2.extend(from_ordinal_unsafe);
+    }
+
+    if let Some(ConstFunctionMember {
+        vis,
+        ident,
+        meta,
+    }) = enable_from_ordinal
+    {
+        let from_ordinal = if use_constant_counter {
+            quote! {
+                #(#[#meta])*
+                #vis const fn #ident (number: #variant_type) -> Option<Self> {
+                    if false {
+                        unreachable!()
+                    } #( else if number == #values {
+                        Some(Self::#variant_idents)
+                    } )* else {
+                        None
+                    }
+                }
+            }
+        } else {
+            quote! {
+                #(#[#meta])*
+                #vis const fn #ident (number: #variant_type) -> Option<Self> {
+                    match number{
+                        #(
+                            #values => Some(Self::#variant_idents),
+                        )*
+                        _ => None
+                    }
+                }
+            }
+        };
+
+        expanded_2.extend(from_ordinal);
+    }
+
+    if let Some(ConstFunctionMember {
+        vis,
+        ident,
+        meta,
+    }) = enable_ordinal
+    {
+        expanded_2.extend(quote! {
+            #(#[#meta])*
+            #vis const fn #ident (&self) -> #variant_type {
+                match self {
+                    #(
+                        Self::#variant_idents => #values,
+                    )*
+                }
+            }
+        });
+    }
+
+    if !expanded_2.is_empty() {
+        expanded.extend(quote! {
+            impl #impl_generics #name #ty_generics #where_clause {
+                #expanded_2
+            }
+        });
+    }
+
+    expanded.into()
+}