16 lines
322 B
Rust
16 lines
322 B
Rust
//@ run-rustfix
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// Point at the captured immutable outer variable
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#![feature(ergonomic_clones)]
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#![allow(incomplete_features)]
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fn foo(mut f: Box<dyn FnMut()>) {
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f();
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}
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fn main() {
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let y = true;
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foo(Box::new(use || y = !y) as Box<_>);
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//~^ ERROR cannot assign to `y`, as it is not declared as mutable
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}
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