40 lines
794 B
Rust
40 lines
794 B
Rust
// run-pass
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#![allow(stable_features)]
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#![allow(unused_imports)]
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// Test that cleanup scope for temporaries created in a match
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// arm is confined to the match arm itself.
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// pretty-expanded FIXME #23616
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#![feature(box_syntax, os)]
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use std::os;
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struct Test { x: isize }
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impl Test {
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fn get_x(&self) -> Option<Box<isize>> {
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Some(box self.x)
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}
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}
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fn do_something(t: &Test) -> isize {
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// The cleanup scope for the result of `t.get_x()` should be the
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// arm itself and not the match, otherwise we'll (potentially) get
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// a crash trying to free an uninitialized stack slot.
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match t {
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&Test { x: 2 } if t.get_x().is_some() => {
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t.x * 2
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}
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_ => { 22 }
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}
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}
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pub fn main() {
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let t = Test { x: 1 };
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do_something(&t);
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}
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