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Revert "Add debug_assert_matches macro." 

This reverts commit 0a8e401188.
This commit is contained in:
Mark Rousskov 2021-04-30 12:08:30 -04:00
parent fa332b0245
commit 1406d06104
2 changed files with 2 additions and 38 deletions
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36
library/core/src/macros/mod.rs
View File

@ -208,42 +208,6 @@ macro_rules! debug_assert_ne {
($($arg:tt)*) => (if $crate::cfg!(debug_assertions) { $crate::assert_ne!($($arg)*); })
}
/// Asserts that an expression matches any of the given patterns.
///
/// Like in a `match` expression, the pattern can be optionally followed by `if`
/// and a guard expression that has access to names bound by the pattern.
///
/// On panic, this macro will print the value of the expression with its
/// debug representation.
///
/// Unlike [`assert_matches!`], `debug_assert_matches!` statements are only
/// enabled in non optimized builds by default. An optimized build will not
/// execute `debug_assert_matches!` statements unless `-C debug-assertions` is
/// passed to the compiler. This makes `debug_assert_matches!` useful for
/// checks that are too expensive to be present in a release build but may be
/// helpful during development. The result of expanding `debug_assert_matches!`
/// is always type checked.
///
/// # Examples
///
/// ```
/// #![feature(assert_matches)]
///
/// let a = 1u32.checked_add(2);
/// let b = 1u32.checked_sub(2);
/// debug_assert_matches!(a, Some(_));
/// debug_assert_matches!(b, None);
///
/// let c = Ok("abc".to_string());
/// debug_assert_matches!(c, Ok(x) | Err(x) if x.len() < 100);
/// ```
#[macro_export]
#[unstable(feature = "assert_matches", issue = "82775")]
#[allow_internal_unstable(assert_matches)]
macro_rules! debug_assert_matches {
($($arg:tt)*) => (if $crate::cfg!(debug_assertions) { $crate::assert_matches!($($arg)*); })
}
/// Returns whether the given expression matches any of the given patterns.
///
/// Like in a `match` expression, the pattern can be optionally followed by `if`

4
library/std/src/lib.rs
View File

@ -558,8 +558,8 @@ pub use std_detect::detect;
#[stable(feature = "rust1", since = "1.0.0")]
#[allow(deprecated, deprecated_in_future)]
pub use core::{
assert_eq, assert_ne, debug_assert, debug_assert_eq, debug_assert_matches, debug_assert_ne,
matches, r#try, todo, unimplemented, unreachable, write, writeln,
assert_eq, assert_ne, debug_assert, debug_assert_eq, debug_assert_ne, matches, r#try, todo,
unimplemented, unreachable, write, writeln,
};
// Re-export built-in macros defined through libcore.