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| author | bors <bors@rust-lang.org> | 2022-10-25 23:24:36 +0000 |
|---|---|---|
| committer | bors <bors@rust-lang.org> | 2022-10-25 23:24:36 +0000 |
| commit | 6365e5ad9fa9e2ec867a67aeeae414e7c62d8354 (patch) | |
| tree | 62cc39a39b8a320a5cc31e9d31b5216d21b932f0 | |
| parent | bed4ad65bf7a1cef39e3d66b3670189581b3b073 (diff) | |
| parent | 1727c00f1a810cae447e12bb564110527450219c (diff) | |
| download | rust-6365e5ad9fa9e2ec867a67aeeae414e7c62d8354.tar.gz rust-6365e5ad9fa9e2ec867a67aeeae414e7c62d8354.zip | |
Auto merge of #102903 - compiler-errors:region-var-leak, r=jackh726
Assert if inference vars are leaking from `InferCtxt::fully_resolve` `InferCtxt::fully_resolve` shouldn't return unresolved inference vars without us at least being aware of it, so make it an assertion now. This should only happen in cases where we used to be returning `ReEmpty`... cc `@jackh726`
| -rw-r--r-- | compiler/rustc_infer/src/infer/mod.rs | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/compiler/rustc_infer/src/infer/mod.rs b/compiler/rustc_infer/src/infer/mod.rs index 2732c92ecd3..7e2ea6c0e26 100644 --- a/compiler/rustc_infer/src/infer/mod.rs +++ b/compiler/rustc_infer/src/infer/mod.rs @@ -1469,7 +1469,12 @@ impl<'tcx> InferCtxt<'tcx> { * except during the writeback phase. */ - resolve::fully_resolve(self, value) + let value = resolve::fully_resolve(self, value); + assert!( + value.as_ref().map_or(true, |value| !value.needs_infer()), + "`{value:?}` is not fully resolved" + ); + value } pub fn replace_bound_vars_with_fresh_vars<T>( |