mirror of https://github.com/rust-lang/rust
18 lines
579 B
Rust
18 lines
579 B
Rust
// Test that even unboxed closures that are capable of mutating their
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// environment cannot mutate captured variables that have not been
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// declared mutable (#18335)
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fn set(x: &mut usize) { *x = 0; }
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fn main() {
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let x = 0;
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move || x = 1; //~ ERROR cannot assign
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move || set(&mut x); //~ ERROR cannot borrow
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move || x = 1; //~ ERROR cannot assign
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move || set(&mut x); //~ ERROR cannot borrow
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|| x = 1; //~ ERROR cannot assign
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|| set(&mut x); //~ ERROR cannot borrow
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|| x = 1; //~ ERROR cannot assign
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|| set(&mut x); //~ ERROR cannot borrow
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}
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