b4c4664167
Do not erase late bound regions when selecting inherent associated types In the fix for #97156 we would want the following code: ```rust #![feature(inherent_associated_types)] #![allow(incomplete_features)] struct Foo<T>(T); impl Foo<fn(&'static ())> { type Assoc = u32; } trait Other {} impl Other for u32 {} // FIXME(inherent_associated_types): Avoid emitting two diagnostics (they only differ in span). // FIXME(inherent_associated_types): Enhancement: Spruce up the diagnostic by saying something like // "implementation is not general enough" as is done for traits via // `try_report_trait_placeholder_mismatch`. fn bar(_: Foo<for<'a> fn(&'a ())>::Assoc) {} //~^ ERROR mismatched types //~| ERROR mismatched types fn main() {} ``` to fail with ... ``` error[E0220]: associated type `Assoc` not found for `Foo<for<'a> fn(&'a ())>` in the current scope --> tests/ui/associated-inherent-types/issue-109789.rs:18:36 | 4 | struct Foo<T>(T); | ------------- associated item `Assoc` not found for this struct ... 18 | fn bar(_: Foo<for<'a> fn(&'a ())>::Assoc) {} | ^^^^^ associated item not found in `Foo<for<'a> fn(&'a ())>` | = note: the associated type was found for - `Foo<fn(&'static ())>` error: aborting due to previous error For more information about this error, try `rustc --explain E0220`. ``` This PR fixes the ICE we are currently getting "was a subtype of Foo<Binder(fn(&ReStatic ()), [])> during selection but now it is not" Also fixes #112631 r? `@lcnr` |
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| assembly | ||
| auxiliary | ||
| codegen | ||
| codegen-units | ||
| coverage | ||
| coverage-run-rustdoc | ||
| debuginfo | ||
| incremental | ||
| mir-opt | ||
| pretty | ||
| run-make | ||
| run-make-fulldeps | ||
| run-pass-valgrind | ||
| rustdoc | ||
| rustdoc-gui | ||
| rustdoc-js | ||
| rustdoc-js-std | ||
| rustdoc-json | ||
| rustdoc-ui | ||
| ui | ||
| ui-fulldeps | ||
| COMPILER_TESTS.md | ||