29 lines
470 B
Rust
29 lines
470 B
Rust
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// error-pattern: overly deep expansion
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// issue 2258
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iface to_opt {
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fn to_option() -> option<self>;
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}
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impl of to_opt for uint {
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fn to_option() -> option<uint> {
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some(self)
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}
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}
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impl<T:copy> of to_opt for option<T> {
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fn to_option() -> option<option<T>> {
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some(self)
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}
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}
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fn function<T:to_opt>(counter: uint, t: T) {
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if counter > 0u {
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function(counter - 1u, t.to_option());
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}
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}
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fn main() {
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function(22u, 22u);
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}
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