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| author | Yuki Okushi <huyuumi.dev@gmail.com> | 2020-05-30 12:39:14 +0900 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-05-30 12:39:14 +0900 |
| commit | 7624ac7dc4b44f5ef9d1ee1e9959e251db77d5ab (patch) | |
| tree | 565819b0875a100d8b10f8dfebe62de951837d72 /src/rustllvm/RustWrapper.cpp | |
| parent | a5fb7fcab376c0d21173f33ceefc4f69998f8964 (diff) | |
| parent | 1c30c9e92bdae1814dbae9367f214b4819cdd0de (diff) | |
| download | rust-7624ac7dc4b44f5ef9d1ee1e9959e251db77d5ab.tar.gz rust-7624ac7dc4b44f5ef9d1ee1e9959e251db77d5ab.zip | |
Rollup merge of #72621 - Aaron1011:fix/trait-select-error, r=nikomatsakis
Don't bail out of trait selection when predicate references an error Fixes #72590 With PR #70551, observing a `ty::Error` guarantees that compilation is going to fail. Therefore, there are no soundness impliciations to continuing on when we encounter a `ty::Error` - we can only affect whether or not additional error messags are emitted. By not bailing out, we avoid incorrectly determining that types are `!Sized` when a type error is present, which allows us to avoid emitting additional spurious error messages. The original comment mentioned this code being shared by coherence - howver, this change resulted in no diagnostic changes in any of the existing tests.
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