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Use proper InferCtxt when probing for associated types in astconv #107100

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Merged
merged 1 commit into from
Jan 28, 2023
Merged

Use proper InferCtxt when probing for associated types in astconv #107100

merged 1 commit into from
Jan 28, 2023
+97 −46

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Fixes #107087

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rustbot commented Jan 20, 2023

r? @lcnr

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@rustbot rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. labels Jan 20, 2023
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lcnr
lcnr reviewed Jan 20, 2023
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i really dislike this setup 😅 we should just have the right infcx available here.

Could we instead add a method fn infcx(&self) -> Option<&InferCtxt> to trait AstConv and use that here?

compiler/rustc_hir_analysis/src/astconv/mod.rs Outdated
@@ -2135,6 +2138,34 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o {
// Find all the `impl`s that `qself_ty` has for any trait that has the
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can you move the whole if let error reporting chain into a separate function (and module astconv/errors.rs). having this much error reporting in a function with relevant behavior makes it harder to read.

@lcnr lcnr added S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Jan 20, 2023
lcnr
lcnr reviewed Jan 23, 2023
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compiler/rustc_hir_analysis/src/astconv/mod.rs
Comment on lines +2210 to +2212
infcx_ = tcx.infer_ctxt().build();
&infcx_
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can you add an assert that qself_ty does not have infer vars in this branch.

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r=me with updated title

@compiler-errors compiler-errors changed the title Fresh inference variables when making assoc ty suggestions in astconv Use proper InferCtxt when probing for associated types in astconv Jan 23, 2023
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@bors r=lcnr

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bors commented Jan 23, 2023

📌 Commit da3ecb0 has been approved by lcnr

It is now in the queue for this repository.

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. labels Jan 23, 2023
matthiaskrgr added a commit to matthiaskrgr/rust that referenced this pull request Jan 27, 2023
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Rollup merge of rust-lang#107100 - compiler-errors:issue-107087, r=lcnr
427695b 
Use proper `InferCtxt` when probing for associated types in astconv

Fixes rust-lang#107087
@matthiaskrgr matthiaskrgr mentioned this pull request Jan 27, 2023
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@matthiaskrgr matthiaskrgr mentioned this pull request Jan 28, 2023
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bors added a commit to rust-lang-ci/rust that referenced this pull request Jan 28, 2023
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Auto merge of rust-lang#107400 - matthiaskrgr:rollup-l6bycds, r=matth…
226b249 
…iaskrgr

Rollup of 8 pull requests

Successful merges:

 - rust-lang#107022 (Implement `SpecOptionPartialEq` for `cmp::Ordering`)
 - rust-lang#107100 (Use proper `InferCtxt` when probing for associated types in astconv)
 - rust-lang#107103 (Use new solver in `evaluate_obligation` query (when new solver is enabled))
 - rust-lang#107190 (Recover from more const arguments that are not wrapped in curly braces)
 - rust-lang#107306 (Correct suggestions for closure arguments that need a borrow)
 - rust-lang#107339 (internally change regions to be covariant)
 - rust-lang#107344 (Minor tweaks in the new solver)
 - rust-lang#107373 (Don't merge vtables when full debuginfo is enabled.)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit 28188d1 into rust-lang:master Jan 28, 2023
@rustbot rustbot added this to the 1.69.0 milestone Jan 28, 2023
@compiler-errors compiler-errors deleted the issue-107087 branch August 11, 2023 20:04
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[ICE]: index out of bounds: the len is 0 but the index is 0 snapshot_vec.rs
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