15 lines
187 B
Rust
15 lines
187 B
Rust
#[legacy_modes];
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fn f(arg: {mut a: int}) {
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arg.a = 100;
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}
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fn main() {
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let x = {mut a: 10};
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f(x);
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assert x.a == 100;
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x.a = 20;
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f(copy x);
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assert x.a == 20;
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}
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