69 lines
1.1 KiB
Rust
69 lines
1.1 KiB
Rust
// extra unused mut lint tests for #51918
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//@ check-pass
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#![feature(coroutines)]
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#![deny(unused_mut)]
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fn ref_argument(ref _y: i32) {}
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// #51801
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fn mutable_upvar() {
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let mut x = 0;
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move || {
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x = 1;
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};
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}
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// #50897
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fn coroutine_mutable_upvar() {
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let mut x = 0;
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#[coroutine]
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move || {
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x = 1;
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yield;
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};
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}
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// #51830
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fn ref_closure_argument() {
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let _ = Some(0).as_ref().map(|ref _a| true);
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}
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struct Expr {
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attrs: Vec<u32>,
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}
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// #51904
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fn parse_dot_or_call_expr_with(mut attrs: Vec<u32>) {
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let x = Expr { attrs: vec![] };
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Some(Some(x)).map(|expr| {
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expr.map(|mut expr| {
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attrs.push(666);
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expr.attrs = attrs;
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expr
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})
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});
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}
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// Found when trying to bootstrap rustc
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fn if_guard(x: Result<i32, i32>) {
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match x {
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Ok(mut r) | Err(mut r) if true => r = 1,
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_ => (),
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}
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}
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// #59620
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fn nested_closures() {
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let mut i = 0;
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[].iter().for_each(|_: &i32| {
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[].iter().for_each(move |_: &i32| {
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i += 1;
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});
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});
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}
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fn main() {}
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