mirror of https://github.com/rust-lang/rust
24 lines
388 B
Rust
24 lines
388 B
Rust
//@ run-pass
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// Assert that `mut self` on an immediate value doesn't
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// allow mutating the original - issue #10615.
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#[derive(Copy, Clone)]
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struct Value {
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n: isize
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}
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impl Value {
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fn squared(mut self) -> Value {
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self.n *= self.n;
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self
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}
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}
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pub fn main() {
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let x = Value { n: 3 };
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let y = x.squared();
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assert_eq!(x.n, 3);
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assert_eq!(y.n, 9);
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}
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