Initial vendor packages
Signed-off-by: Valentin Popov <valentin@popov.link>
This commit is contained in:
		
							
								
								
									
										50
									
								
								vendor/thiserror/src/aserror.rs
									
									
									
									
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								vendor/thiserror/src/aserror.rs
									
									
									
									
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use std::error::Error;
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use std::panic::UnwindSafe;
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#[doc(hidden)]
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pub trait AsDynError<'a>: Sealed {
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    fn as_dyn_error(&self) -> &(dyn Error + 'a);
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}
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impl<'a, T: Error + 'a> AsDynError<'a> for T {
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    #[inline]
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    fn as_dyn_error(&self) -> &(dyn Error + 'a) {
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        self
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    }
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}
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impl<'a> AsDynError<'a> for dyn Error + 'a {
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    #[inline]
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    fn as_dyn_error(&self) -> &(dyn Error + 'a) {
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        self
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    }
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}
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impl<'a> AsDynError<'a> for dyn Error + Send + 'a {
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    #[inline]
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    fn as_dyn_error(&self) -> &(dyn Error + 'a) {
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        self
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    }
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}
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impl<'a> AsDynError<'a> for dyn Error + Send + Sync + 'a {
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    #[inline]
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    fn as_dyn_error(&self) -> &(dyn Error + 'a) {
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        self
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    }
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}
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impl<'a> AsDynError<'a> for dyn Error + Send + Sync + UnwindSafe + 'a {
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    #[inline]
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    fn as_dyn_error(&self) -> &(dyn Error + 'a) {
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        self
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    }
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}
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#[doc(hidden)]
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pub trait Sealed {}
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impl<'a, T: Error + 'a> Sealed for T {}
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impl<'a> Sealed for dyn Error + 'a {}
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impl<'a> Sealed for dyn Error + Send + 'a {}
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impl<'a> Sealed for dyn Error + Send + Sync + 'a {}
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impl<'a> Sealed for dyn Error + Send + Sync + UnwindSafe + 'a {}
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										40
									
								
								vendor/thiserror/src/display.rs
									
									
									
									
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								vendor/thiserror/src/display.rs
									
									
									
									
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use std::fmt::Display;
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use std::path::{self, Path, PathBuf};
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#[doc(hidden)]
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pub trait AsDisplay<'a> {
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    // TODO: convert to generic associated type.
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    // https://github.com/dtolnay/thiserror/pull/253
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    type Target: Display;
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    fn as_display(&'a self) -> Self::Target;
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}
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impl<'a, T> AsDisplay<'a> for &T
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where
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    T: Display + 'a,
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{
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    type Target = &'a T;
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    fn as_display(&'a self) -> Self::Target {
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        *self
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    }
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}
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impl<'a> AsDisplay<'a> for Path {
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    type Target = path::Display<'a>;
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    #[inline]
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    fn as_display(&'a self) -> Self::Target {
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        self.display()
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    }
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}
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impl<'a> AsDisplay<'a> for PathBuf {
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    type Target = path::Display<'a>;
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    #[inline]
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    fn as_display(&'a self) -> Self::Target {
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        self.display()
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    }
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}
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								vendor/thiserror/src/lib.rs
									
									
									
									
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//! [![github]](https://github.com/dtolnay/thiserror) [![crates-io]](https://crates.io/crates/thiserror) [![docs-rs]](https://docs.rs/thiserror)
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//!
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//! [github]: https://img.shields.io/badge/github-8da0cb?style=for-the-badge&labelColor=555555&logo=github
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//! [crates-io]: https://img.shields.io/badge/crates.io-fc8d62?style=for-the-badge&labelColor=555555&logo=rust
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//! [docs-rs]: https://img.shields.io/badge/docs.rs-66c2a5?style=for-the-badge&labelColor=555555&logo=docs.rs
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//!
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//! <br>
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//!
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//! This library provides a convenient derive macro for the standard library's
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//! [`std::error::Error`] trait.
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//!
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//! [`std::error::Error`]: https://doc.rust-lang.org/std/error/trait.Error.html
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//!
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//! <br>
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//!
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//! # Example
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//!
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//! ```rust
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//! # use std::io;
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//! use thiserror::Error;
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//!
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//! #[derive(Error, Debug)]
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//! pub enum DataStoreError {
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//!     #[error("data store disconnected")]
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//!     Disconnect(#[from] io::Error),
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//!     #[error("the data for key `{0}` is not available")]
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//!     Redaction(String),
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//!     #[error("invalid header (expected {expected:?}, found {found:?})")]
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//!     InvalidHeader {
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//!         expected: String,
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//!         found: String,
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//!     },
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//!     #[error("unknown data store error")]
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//!     Unknown,
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//! }
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//! ```
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//!
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//! <br>
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//!
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//! # Details
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//!
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//! - Thiserror deliberately does not appear in your public API. You get the
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//!   same thing as if you had written an implementation of `std::error::Error`
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//!   by hand, and switching from handwritten impls to thiserror or vice versa
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//!   is not a breaking change.
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//!
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//! - Errors may be enums, structs with named fields, tuple structs, or unit
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//!   structs.
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//!
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//! - A `Display` impl is generated for your error if you provide
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//!   `#[error("...")]` messages on the struct or each variant of your enum, as
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//!   shown above in the example.
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//!
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//!   The messages support a shorthand for interpolating fields from the error.
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//!
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//!     - `#[error("{var}")]` ⟶ `write!("{}", self.var)`
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//!     - `#[error("{0}")]` ⟶ `write!("{}", self.0)`
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//!     - `#[error("{var:?}")]` ⟶ `write!("{:?}", self.var)`
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//!     - `#[error("{0:?}")]` ⟶ `write!("{:?}", self.0)`
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//!
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//!   These shorthands can be used together with any additional format args,
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//!   which may be arbitrary expressions. For example:
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//!
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//!   ```rust
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//!   # use std::i32;
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//!   # use thiserror::Error;
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//!   #
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//!   #[derive(Error, Debug)]
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//!   pub enum Error {
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//!       #[error("invalid rdo_lookahead_frames {0} (expected < {})", i32::MAX)]
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//!       InvalidLookahead(u32),
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//!   }
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//!   ```
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//!
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//!   If one of the additional expression arguments needs to refer to a field of
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//!   the struct or enum, then refer to named fields as `.var` and tuple fields
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//!   as `.0`.
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//!
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//!   ```rust
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//!   # use thiserror::Error;
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//!   #
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//!   # fn first_char(s: &String) -> char {
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//!   #     s.chars().next().unwrap()
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//!   # }
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//!   #
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//!   # #[derive(Debug)]
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//!   # struct Limits {
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//!   #     lo: usize,
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//!   #     hi: usize,
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//!   # }
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//!   #
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//!   #[derive(Error, Debug)]
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//!   pub enum Error {
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//!       #[error("first letter must be lowercase but was {:?}", first_char(.0))]
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//!       WrongCase(String),
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//!       #[error("invalid index {idx}, expected at least {} and at most {}", .limits.lo, .limits.hi)]
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//!       OutOfBounds { idx: usize, limits: Limits },
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//!   }
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//!   ```
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//!
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//! - A `From` impl is generated for each variant containing a `#[from]`
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//!   attribute.
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//!
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//!   Note that the variant must not contain any other fields beyond the source
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//!   error and possibly a backtrace. A backtrace is captured from within the
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//!   `From` impl if there is a field for it.
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//!
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//!   ```rust
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//!   # const IGNORE: &str = stringify! {
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//!   #[derive(Error, Debug)]
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//!   pub enum MyError {
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//!       Io {
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//!           #[from]
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//!           source: io::Error,
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//!           backtrace: Backtrace,
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//!       },
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//!   }
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//!   # };
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//!   ```
 | 
			
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//!
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//! - The Error trait's `source()` method is implemented to return whichever
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//!   field has a `#[source]` attribute or is named `source`, if any. This is
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//!   for identifying the underlying lower level error that caused your error.
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//!
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//!   The `#[from]` attribute always implies that the same field is `#[source]`,
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//!   so you don't ever need to specify both attributes.
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//!
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//!   Any error type that implements `std::error::Error` or dereferences to `dyn
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//!   std::error::Error` will work as a source.
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//!
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//!   ```rust
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//!   # use std::fmt::{self, Display};
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//!   # use thiserror::Error;
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//!   #
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//!   #[derive(Error, Debug)]
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//!   pub struct MyError {
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//!       msg: String,
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//!       #[source]  // optional if field name is `source`
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//!       source: anyhow::Error,
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//!   }
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//!   #
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//!   # impl Display for MyError {
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//!   #     fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
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//!   #         unimplemented!()
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//!   #     }
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//!   # }
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//!   ```
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//!
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//! - The Error trait's `provide()` method is implemented to provide whichever
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//!   field has a type named `Backtrace`, if any, as a
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//!   `std::backtrace::Backtrace`.
 | 
			
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//!
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//!   ```rust
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//!   # const IGNORE: &str = stringify! {
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//!   use std::backtrace::Backtrace;
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//!
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//!   #[derive(Error, Debug)]
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//!   pub struct MyError {
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//!       msg: String,
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//!       backtrace: Backtrace,  // automatically detected
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//!   }
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//!   # };
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//!   ```
 | 
			
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//!
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//! - If a field is both a source (named `source`, or has `#[source]` or
 | 
			
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//!   `#[from]` attribute) *and* is marked `#[backtrace]`, then the Error
 | 
			
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//!   trait's `provide()` method is forwarded to the source's `provide` so that
 | 
			
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//!   both layers of the error share the same backtrace.
 | 
			
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//!
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//!   ```rust
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//!   # const IGNORE: &str = stringify! {
 | 
			
		||||
//!   #[derive(Error, Debug)]
 | 
			
		||||
//!   pub enum MyError {
 | 
			
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//!       Io {
 | 
			
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//!           #[backtrace]
 | 
			
		||||
//!           source: io::Error,
 | 
			
		||||
//!       },
 | 
			
		||||
//!   }
 | 
			
		||||
//!   # };
 | 
			
		||||
//!   ```
 | 
			
		||||
//!
 | 
			
		||||
//! - Errors may use `error(transparent)` to forward the source and Display
 | 
			
		||||
//!   methods straight through to an underlying error without adding an
 | 
			
		||||
//!   additional message. This would be appropriate for enums that need an
 | 
			
		||||
//!   "anything else" variant.
 | 
			
		||||
//!
 | 
			
		||||
//!   ```
 | 
			
		||||
//!   # use thiserror::Error;
 | 
			
		||||
//!   #
 | 
			
		||||
//!   #[derive(Error, Debug)]
 | 
			
		||||
//!   pub enum MyError {
 | 
			
		||||
//!       # /*
 | 
			
		||||
//!       ...
 | 
			
		||||
//!       # */
 | 
			
		||||
//!
 | 
			
		||||
//!       #[error(transparent)]
 | 
			
		||||
//!       Other(#[from] anyhow::Error),  // source and Display delegate to anyhow::Error
 | 
			
		||||
//!   }
 | 
			
		||||
//!   ```
 | 
			
		||||
//!
 | 
			
		||||
//!   Another use case is hiding implementation details of an error
 | 
			
		||||
//!   representation behind an opaque error type, so that the representation is
 | 
			
		||||
//!   able to evolve without breaking the crate's public API.
 | 
			
		||||
//!
 | 
			
		||||
//!   ```
 | 
			
		||||
//!   # use thiserror::Error;
 | 
			
		||||
//!   #
 | 
			
		||||
//!   // PublicError is public, but opaque and easy to keep compatible.
 | 
			
		||||
//!   #[derive(Error, Debug)]
 | 
			
		||||
//!   #[error(transparent)]
 | 
			
		||||
//!   pub struct PublicError(#[from] ErrorRepr);
 | 
			
		||||
//!
 | 
			
		||||
//!   impl PublicError {
 | 
			
		||||
//!       // Accessors for anything we do want to expose publicly.
 | 
			
		||||
//!   }
 | 
			
		||||
//!
 | 
			
		||||
//!   // Private and free to change across minor version of the crate.
 | 
			
		||||
//!   #[derive(Error, Debug)]
 | 
			
		||||
//!   enum ErrorRepr {
 | 
			
		||||
//!       # /*
 | 
			
		||||
//!       ...
 | 
			
		||||
//!       # */
 | 
			
		||||
//!   }
 | 
			
		||||
//!   ```
 | 
			
		||||
//!
 | 
			
		||||
//! - See also the [`anyhow`] library for a convenient single error type to use
 | 
			
		||||
//!   in application code.
 | 
			
		||||
//!
 | 
			
		||||
//!   [`anyhow`]: https://github.com/dtolnay/anyhow
 | 
			
		||||
 | 
			
		||||
#![doc(html_root_url = "https://docs.rs/thiserror/1.0.56")]
 | 
			
		||||
#![allow(
 | 
			
		||||
    clippy::module_name_repetitions,
 | 
			
		||||
    clippy::needless_lifetimes,
 | 
			
		||||
    clippy::return_self_not_must_use,
 | 
			
		||||
    clippy::wildcard_imports
 | 
			
		||||
)]
 | 
			
		||||
#![cfg_attr(error_generic_member_access, feature(error_generic_member_access))]
 | 
			
		||||
 | 
			
		||||
#[cfg(all(thiserror_nightly_testing, not(error_generic_member_access)))]
 | 
			
		||||
compile_error!("Build script probe failed to compile.");
 | 
			
		||||
 | 
			
		||||
mod aserror;
 | 
			
		||||
mod display;
 | 
			
		||||
#[cfg(error_generic_member_access)]
 | 
			
		||||
mod provide;
 | 
			
		||||
 | 
			
		||||
pub use thiserror_impl::*;
 | 
			
		||||
 | 
			
		||||
// Not public API.
 | 
			
		||||
#[doc(hidden)]
 | 
			
		||||
pub mod __private {
 | 
			
		||||
    #[doc(hidden)]
 | 
			
		||||
    pub use crate::aserror::AsDynError;
 | 
			
		||||
    #[doc(hidden)]
 | 
			
		||||
    pub use crate::display::AsDisplay;
 | 
			
		||||
    #[cfg(error_generic_member_access)]
 | 
			
		||||
    #[doc(hidden)]
 | 
			
		||||
    pub use crate::provide::ThiserrorProvide;
 | 
			
		||||
}
 | 
			
		||||
							
								
								
									
										20
									
								
								vendor/thiserror/src/provide.rs
									
									
									
									
										vendored
									
									
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								vendor/thiserror/src/provide.rs
									
									
									
									
										vendored
									
									
										Normal file
									
								
							@@ -0,0 +1,20 @@
 | 
			
		||||
use std::error::{Error, Request};
 | 
			
		||||
 | 
			
		||||
#[doc(hidden)]
 | 
			
		||||
pub trait ThiserrorProvide: Sealed {
 | 
			
		||||
    fn thiserror_provide<'a>(&'a self, request: &mut Request<'a>);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
impl<T> ThiserrorProvide for T
 | 
			
		||||
where
 | 
			
		||||
    T: Error + ?Sized,
 | 
			
		||||
{
 | 
			
		||||
    #[inline]
 | 
			
		||||
    fn thiserror_provide<'a>(&'a self, request: &mut Request<'a>) {
 | 
			
		||||
        self.provide(request);
 | 
			
		||||
    }
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
#[doc(hidden)]
 | 
			
		||||
pub trait Sealed {}
 | 
			
		||||
impl<T: Error + ?Sized> Sealed for T {}
 | 
			
		||||
		Reference in New Issue
	
	Block a user