025fbe8f69
Replace ad-hoc type path shortening logic for recursive mono instantiation errors to use `tcx.short_string()` instead.
30 lines
623 B
Rust
30 lines
623 B
Rust
//@ build-fail
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//@ compile-flags: --diagnostic-width=100 -Zwrite-long-types-to-disk=yes
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trait ToOpt: Sized {
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fn to_option(&self) -> Option<Self>;
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}
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impl ToOpt for usize {
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fn to_option(&self) -> Option<usize> {
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Some(*self)
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}
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}
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impl<T:Clone> ToOpt for Option<T> {
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fn to_option(&self) -> Option<Option<T>> {
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Some((*self).clone())
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}
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}
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fn function<T:ToOpt + Clone>(counter: usize, t: T) {
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if counter > 0 {
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function(counter - 1, t.to_option());
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//~^ ERROR reached the recursion limit while instantiating `function::<Option<
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}
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}
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fn main() {
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function(22, 22);
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}
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