40 lines
758 B
Rust
40 lines
758 B
Rust
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enum t { a, b(~str), }
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impl t : cmp::Eq {
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pure fn eq(&&other: t) -> bool {
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match self {
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a => {
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match other {
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a => true,
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b(_) => false
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}
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}
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b(s0) => {
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match other {
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a => false,
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b(s1) => s0 == s1
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}
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}
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}
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}
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pure fn ne(&&other: t) -> bool { !self.eq(other) }
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}
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fn make(i: int) -> t {
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if i > 10 { return a; }
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let mut s = ~"hello";
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// Ensure s is non-const.
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s += ~"there";
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return b(s);
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}
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fn main() {
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let mut i = 0;
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// The auto slot for the result of make(i) should not leak.
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while make(i) != a { i += 1; }
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}
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