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| author | Lukas Bergdoll <lukas.bergdoll@gmail.com> | 2024-02-29 09:52:02 +0100 |
|---|---|---|
| committer | Lukas Bergdoll <lukas.bergdoll@gmail.com> | 2024-02-29 09:52:02 +0100 |
| commit | d2495facb14b6e79b70d98847fd8dfd6f0023e70 (patch) | |
| tree | bf0271ea1c54faaa18fdce1ba606aa8348afccc1 | |
| parent | e4781115f2a5e50d60673d5c64d49182fc190247 (diff) | |
| download | rust-d2495facb14b6e79b70d98847fd8dfd6f0023e70.tar.gz rust-d2495facb14b6e79b70d98847fd8dfd6f0023e70.zip | |
Drop link to matches macro and link matches macro to assert_matches.
| -rw-r--r-- | library/core/src/macros/mod.rs | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/library/core/src/macros/mod.rs b/library/core/src/macros/mod.rs index 949b07dfb77..62ff3181ef8 100644 --- a/library/core/src/macros/mod.rs +++ b/library/core/src/macros/mod.rs @@ -118,7 +118,7 @@ macro_rules! assert_ne { /// the debug representation, of the actual value shape that did not meet expectation. In contrast /// using [`assert!`] will only print that the expectation was not met, but not why. /// -/// The pattern syntax is exactly the same as found in a match arm and the [`matches!`] macro. The +/// The pattern syntax is exactly the same as found in a match arm and the `matches!` macro. The /// optional if guard can be used to add additional checks that must be true for the matched value, /// otherwise this macro will panic. /// @@ -385,7 +385,7 @@ macro_rules! debug_assert_ne { /// print the debug representation, of the actual value shape that did not meet expectation. In /// contrast using [`debug_assert!`] will only print that the expectation was not met, but not why. /// -/// The pattern syntax is exactly the same as found in a match arm and the [`matches!`] macro. The +/// The pattern syntax is exactly the same as found in a match arm and the `matches!` macro. The /// optional if guard can be used to add additional checks that must be true for the matched value, /// otherwise this macro will panic. /// @@ -430,10 +430,15 @@ pub macro debug_assert_matches($($arg:tt)*) { } } -/// Returns whether the given expression matches any of the given patterns. +/// Returns whether the given expression matches the provided pattern. /// -/// 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. +/// The pattern syntax is exactly the same as found in a match arm. The optional if guard can be +/// used to add additional checks that must be true for the matched value, otherwise this macro will +/// return `false`. +/// +/// When testing that a value matches a pattern, it's generally preferable to use +/// [`assert_matches!`] as it will print the debug representation of the value if the assertion +/// fails. /// /// # Examples /// |
