44 lines
770 B
Rust
44 lines
770 B
Rust
//@ run-pass
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struct A { a: Box<i32> }
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impl A {
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fn get(&self) -> i32 { *self.a }
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}
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fn foo(n: i32) -> i32 {
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let x = A { a: Box::new(n) };
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let y = match x {
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A { a: v } if *v == 42 => v,
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_ => Box::new(0),
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};
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*y
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}
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fn bar(n: i32) -> i32 {
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let x = A { a: Box::new(n) };
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let y = match x {
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A { a: v } if x.get() == 42 => v,
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_ => Box::new(0),
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};
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*y
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}
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fn baz(n: i32) -> i32 {
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let x = A { a: Box::new(n) };
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let y = match x {
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A { a: v } if *v.clone() == 42 => v,
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_ => Box::new(0),
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};
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*y
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}
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fn main() {
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assert_eq!(foo(107), 0);
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assert_eq!(foo(42), 42);
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assert_eq!(bar(107), 0);
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assert_eq!(bar(42), 42);
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assert_eq!(baz(107), 0);
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assert_eq!(baz(42), 42);
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}
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