diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/lint/unused_braces.rs | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/ui/lint/unused_braces.rs')
-rw-r--r-- | src/test/ui/lint/unused_braces.rs | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/src/test/ui/lint/unused_braces.rs b/src/test/ui/lint/unused_braces.rs new file mode 100644 index 000000000..5ca4811fc --- /dev/null +++ b/src/test/ui/lint/unused_braces.rs @@ -0,0 +1,53 @@ +// check-pass +// run-rustfix + +#![warn(unused_braces, unused_parens)] +#![allow(unreachable_code, unused_unsafe)] // for rustfix + +fn consume<T>(_: T) {} + +fn main() { + let _ = (7); + //~^WARN unnecessary parentheses + + // Do not emit a lint in these cases, + // as we have to be careful with + // `ref` patterns. + { + let _ = { 7 }; + + if let 7 = { 7 } { } + + match { 7 } { + _ => (), + } + } + + if { true } { + //~^ WARN unnecessary braces + } + + while { false } { + //~^ WARN unnecessary braces + } + + let _: [u8; { 3 }]; + //~^ WARN unnecessary braces + + consume({ 7 }); + //~^ WARN unnecessary braces + + // Do not emit lint for multiline blocks. + let _ = { + 7 + }; + + // Do not emit lint for unsafe blocks. + let _ = unsafe { 7 }; + + // Do not emit lint, as the `{` would then + // be parsed as part of the `return`. + if { return } { + + } +} |