95 lines
1.1 KiB
Rust
95 lines
1.1 KiB
Rust
#![warn(clippy::let_underscore_must_use)]
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// Debug implementations can fire this lint,
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// so we shouldn't lint external macros
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#[derive(Debug)]
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struct Foo {
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field: i32,
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}
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#[must_use]
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fn f() -> u32 {
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0
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}
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fn g() -> Result<u32, u32> {
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Ok(0)
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}
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#[must_use]
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fn l<T>(x: T) -> T {
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x
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}
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fn h() -> u32 {
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0
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}
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struct S {}
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impl S {
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#[must_use]
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pub fn f(&self) -> u32 {
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0
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}
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pub fn g(&self) -> Result<u32, u32> {
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Ok(0)
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}
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fn k(&self) -> u32 {
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0
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}
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#[must_use]
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fn h() -> u32 {
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0
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}
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fn p() -> Result<u32, u32> {
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Ok(0)
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}
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}
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trait Trait {
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#[must_use]
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fn a() -> u32;
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}
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impl Trait for S {
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fn a() -> u32 {
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0
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}
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}
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fn main() {
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let _ = f();
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let _ = g();
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let _ = h();
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let _ = l(0_u32);
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let s = S {};
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let _ = s.f();
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let _ = s.g();
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let _ = s.k();
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let _ = S::h();
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let _ = S::p();
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let _ = S::a();
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let _ = if true { Ok(()) } else { Err(()) };
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let a = Result::<(), ()>::Ok(());
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let _ = a.is_ok();
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let _ = a.map(|_| ());
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let _ = a;
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#[allow(clippy::let_underscore_must_use)]
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let _ = a;
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}
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