mirror of
https://github.com/rust-lang/rust
synced 2024-11-05 20:45:15 +00:00
32 lines
695 B
Rust
32 lines
695 B
Rust
// run-pass
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struct S {
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o: Option<String>
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}
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// Make sure we don't reuse the same alloca when matching
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// on field of struct or tuple which we reassign in the match body.
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fn main() {
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let mut a = (0, Some("right".to_string()));
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let b = match a.1 {
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Some(v) => {
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a.1 = Some("wrong".to_string());
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v
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}
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None => String::new()
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};
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println!("{}", b);
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assert_eq!(b, "right");
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let mut s = S{ o: Some("right".to_string()) };
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let b = match s.o {
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Some(v) => {
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s.o = Some("wrong".to_string());
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v
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}
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None => String::new(),
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};
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println!("{}", b);
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assert_eq!(b, "right");
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}
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