58 lines
1.1 KiB
Rust
58 lines
1.1 KiB
Rust
//@ check-pass
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//@ run-rustfix
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#![warn(unused_braces, unused_parens)]
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#![allow(unreachable_code, unused_unsafe)] // for rustfix
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fn consume<T>(_: T) {}
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fn main() {
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let _ = (7);
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//~^WARN unnecessary parentheses
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// Do not emit a lint in these cases,
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// as we have to be careful with
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// `ref` patterns.
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{
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let _ = { 7 };
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if let 7 = { 7 } { }
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match { 7 } {
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_ => (),
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}
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}
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if { true } {
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//~^ WARN unnecessary braces
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}
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while { false } {
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//~^ WARN unnecessary braces
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}
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let _: [u8; { 3 }];
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//~^ WARN unnecessary braces
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consume({ 7 });
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//~^ WARN unnecessary braces
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// Do not emit lint for multiline blocks.
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let _ = {
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7
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};
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// Do not emit lint for unsafe blocks.
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let _ = unsafe { 7 };
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// Do not emit lint, as the `{` would then
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// be parsed as part of the `return`.
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if { return } {
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}
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// regression test for https://github.com/rust-lang/rust/issues/106899
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return { println!("!") };
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//~^ WARN unnecessary braces
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}
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