| use std::fmt::Display; |
| use std::path::{self, Path, PathBuf}; |
| |
| #[doc(hidden)] |
| pub trait AsDisplay<'a> { |
| // 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 + 'a, |
| { |
| type Target = &'a T; |
| |
| fn as_display(&'a self) -> Self::Target { |
| *self |
| } |
| } |
| |
| impl<'a> AsDisplay<'a> for Path { |
| type Target = path::Display<'a>; |
| |
| #[inline] |
| fn as_display(&'a self) -> Self::Target { |
| self.display() |
| } |
| } |
| |
| impl<'a> AsDisplay<'a> for PathBuf { |
| type Target = path::Display<'a>; |
| |
| #[inline] |
| fn as_display(&'a self) -> Self::Target { |
| self.display() |
| } |
| } |