diff options
Diffstat (limited to 'vendor/thiserror/src/display.rs')
| -rw-r--r-- | vendor/thiserror/src/display.rs | 81 |
1 files changed, 0 insertions, 81 deletions
diff --git a/vendor/thiserror/src/display.rs b/vendor/thiserror/src/display.rs deleted file mode 100644 index 7b2bf1cf..00000000 --- a/vendor/thiserror/src/display.rs +++ /dev/null @@ -1,81 +0,0 @@ -use core::fmt::Display; -#[cfg(feature = "std")] -use std::path::{self, Path, PathBuf}; - -#[doc(hidden)] -pub trait AsDisplay<'a>: Sealed { - // TODO: convert to generic associated type. - // https://github.com/dtolnay/thiserror/pull/253 - type Target: Display; - - fn as_display(&'a self) -> Self::Target; -} - -impl<'a, T> AsDisplay<'a> for &T -where - T: Display + ?Sized + 'a, -{ - type Target = &'a T; - - fn as_display(&'a self) -> Self::Target { - *self - } -} - -#[cfg(feature = "std")] -impl<'a> AsDisplay<'a> for Path { - type Target = path::Display<'a>; - - #[inline] - fn as_display(&'a self) -> Self::Target { - self.display() - } -} - -#[cfg(feature = "std")] -impl<'a> AsDisplay<'a> for PathBuf { - type Target = path::Display<'a>; - - #[inline] - fn as_display(&'a self) -> Self::Target { - self.display() - } -} - -#[doc(hidden)] -pub trait Sealed {} -impl<T: Display + ?Sized> Sealed for &T {} -#[cfg(feature = "std")] -impl Sealed for Path {} -#[cfg(feature = "std")] -impl Sealed for PathBuf {} - -// Add a synthetic second impl of AsDisplay to prevent the "single applicable -// impl" rule from making too weird inference decision based on the single impl -// for &T, which could lead to code that compiles with thiserror's std feature -// off but breaks under feature unification when std is turned on by an -// unrelated crate. -#[cfg(not(feature = "std"))] -mod placeholder { - use super::{AsDisplay, Sealed}; - use core::fmt::{self, Display}; - - pub struct Placeholder; - - impl<'a> AsDisplay<'a> for Placeholder { - type Target = Self; - - #[inline] - fn as_display(&'a self) -> Self::Target { - Placeholder - } - } - - impl Display for Placeholder { - fn fmt(&self, _formatter: &mut fmt::Formatter) -> fmt::Result { - unreachable!() - } - } - - impl Sealed for Placeholder {} -} |
