28 lines
796 B
Rust
28 lines
796 B
Rust
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// This test demonstrates an ICE that may occur when we try to resolve the instance
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// of a impl that has different generics than the trait it's implementing. This ensures
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// we first check that the args are compatible before resolving the body, just like
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// we do in projection before substituting a GAT.
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//
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// When polymorphization is enabled, we check the optimized MIR for unused parameters.
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// This will invoke the inliner, leading to this ICE.
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//@ compile-flags: -Zpolymorphize=on -Zinline-mir=yes
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trait Trait {
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fn foo<'a, K: 'a>(self, _: K);
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}
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impl Trait for () {
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#[inline]
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fn foo<K>(self, _: K) {
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//~^ ERROR lifetime parameters or bounds on method `foo` do not match the trait declaration
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todo!();
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}
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}
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pub fn qux<T>() {
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().foo(());
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}
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fn main() {}
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