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27 lines
558 B
Rust
27 lines
558 B
Rust
// Tests that using fulfillment in the trait solver means that we detect that a
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// method is impossible, leading to no ambiguity.
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//@ check-pass
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//@ revisions: current next
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//@ ignore-compare-mode-next-solver (explicit revisions)
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//@[next] compile-flags: -Znext-solver
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struct W<T, U>(Option<T>, Option<U>);
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impl<'a> W<fn(&'a ()), u32> {
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fn method(&self) {}
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}
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trait Leak {}
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impl<T: Fn(&())> Leak for T {}
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impl<T: Leak> W<T, i32> {
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fn method(&self) {}
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}
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fn test<'a>() {
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let x: W<fn(&'a ()), _> = W(None, None);
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x.method();
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}
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fn main() {}
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