mirror of https://github.com/rust-lang/rust
86 lines
1.8 KiB
Rust
86 lines
1.8 KiB
Rust
//@ check-pass
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// Make sure unused parens lint doesn't emit a false positive.
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// See https://github.com/rust-lang/rust/issues/88519
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#![deny(unused_parens)]
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#![feature(type_ascription)]
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// binary ops are tested in issue-71290-unused-paren-binop.rs
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mod call {
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fn noop() -> u8 { 0 }
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fn outside() -> u8 {
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({ noop })()
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}
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fn inside() -> u8 {
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({ noop }())
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}
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fn outside_match() -> u8 {
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(match noop { x => x })()
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}
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fn inside_match() -> u8 {
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(match noop { x => x }())
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}
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fn outside_if() -> u8 {
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(if false { noop } else { noop })()
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}
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fn inside_if() -> u8 {
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(if false { noop } else { noop }())
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}
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}
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mod casts {
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fn outside() -> u8 {
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({ 0 }) as u8
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}
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fn inside() -> u8 {
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({ 0 } as u8)
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}
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fn outside_match() -> u8 {
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(match 0 { x => x }) as u8
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}
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fn inside_match() -> u8 {
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(match 0 { x => x } as u8)
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}
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fn outside_if() -> u8 {
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(if false { 0 } else { 0 }) as u8
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}
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fn inside_if() -> u8 {
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(if false { 0 } else { 0 } as u8)
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}
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}
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mod typeascription {
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fn outside() -> u8 {
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type_ascribe!(({ 0 }), u8)
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}
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fn outside_match() -> u8 {
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type_ascribe!((match 0 { x => x }), u8)
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}
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fn outside_if() -> u8 {
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type_ascribe!((if false { 0 } else { 0 }), u8)
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}
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}
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mod index {
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fn outside(x: &[u8]) -> u8 {
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({ x })[0]
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}
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fn inside(x: &[u8]) -> u8 {
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({ x }[0])
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}
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fn outside_match(x: &[u8]) -> u8 {
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(match x { x => x })[0]
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}
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fn inside_match(x: &[u8]) -> u8 {
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(match x { x => x }[0])
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}
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fn outside_if(x: &[u8]) -> u8 {
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(if false { x } else { x })[0]
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}
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fn inside_if(x: &[u8]) -> u8 {
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(if false { x } else { x }[0])
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}
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}
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fn main() {}
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