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Do not use ImplDerivedObligationCause for inherent impl method error reporting #110133

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merged 1 commit into from
Apr 13, 2023

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@compiler-errors compiler-errors commented Apr 10, 2023

We were constructing a TraitRef out of impl substs, for an inherent impl that has no corresponding trait. Instead of doing that, let's construct a meaningful obligation cause code, and instead adjust the error reporting machinery to handle that correctly.

Fixes #110131
cc #106702, which introduced this regression

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rustbot commented Apr 10, 2023

r? @petrochenkov

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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 Apr 10, 2023
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@bors r+

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bors commented Apr 10, 2023

📌 Commit b369c8e has been approved by petrochenkov

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-review Status: Awaiting review from the assignee but also interested parties. labels Apr 10, 2023
compiler-errors added a commit to compiler-errors/rust that referenced this pull request Apr 11, 2023
…trochenkov

Do not use ImplDerivedObligationCause for inherent impl method error reporting

We were constructing a `TraitRef` out of impl substs, for an *inherent* impl that has no corresponding trait. Instead of doing that, let's construct a meaningful obligation cause code, and instead adjust the error reporting machinery to handle that correctly.

Fixes rust-lang#110131
cc rust-lang#106702, which introduced this regression
bors added a commit to rust-lang-ci/rust that referenced this pull request Apr 12, 2023
…iaskrgr

Rollup of 8 pull requests

Successful merges:

 - rust-lang#109810 (Replace rustdoc-ui/{c,z}-help tests with a stable run-make test )
 - rust-lang#110035 (fix: ensure bad `#[test]` invocs retain correct AST)
 - rust-lang#110089 (sync::mpsc: synchronize receiver disconnect with initialization)
 - rust-lang#110103 (Report overflows gracefully with new solver)
 - rust-lang#110122 (Fix x check --stage 1 when download-ci-llvm=false)
 - rust-lang#110133 (Do not use ImplDerivedObligationCause for inherent impl method error reporting)
 - rust-lang#110135 (Revert "Don't recover lifetimes/labels containing emojis as character literals")
 - rust-lang#110235 (Fix `--extend-css` option)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit 5d6aeb9 into rust-lang:master Apr 13, 2023
@rustbot rustbot added this to the 1.70.0 milestone Apr 13, 2023
@compiler-errors compiler-errors deleted the issue-110131 branch August 11, 2023 20:05
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error: internal compiler error: compiler/rustc_middle/src/ty/sty.rs:847:21: expected type for param #0
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