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Auto merge of #116849 - oli-obk:error_shenanigans, r=cjgillot

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Avoid a `track_errors` by bubbling up most errors from `check_well_formed`

I believe `track_errors` is mostly papering over issues that a sufficiently convoluted query graph can hit. I made this change, while the actual change I want to do is to stop bailing out early on errors, and instead use this new `ErrorGuaranteed` to invoke `check_well_formed` for individual items before doing all the `typeck` logic on them.

This works towards resolving https://github.com/rust-lang/rust/issues/97477 and various other ICEs, as well as allowing us to use parallel rustc more (which is currently rather limited/bottlenecked due to the very sequential nature in which we do `rustc_hir_analysis::check_crate`)

cc `@SparrowLii` `@Zoxc` for the new `try_par_for_each_in` function
This commit is contained in:
bors 2023-10-23 09:59:40 +00:00
commit 350a6827a8
1 changed files with 2 additions and 12 deletions
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14
tests/ui/crashes/ice-6252.stderr
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@ -24,16 +24,6 @@ help: you might be missing a type parameter
LL | impl<N, M, VAL> TypeVal<usize> for Multiply<N, M> where N: TypeVal<VAL> {}
| +++++
error[E0046]: not all trait items implemented, missing: `VAL`
--> $DIR/ice-6252.rs:11:1
|
LL | const VAL: T;
| ------------ `VAL` from trait
...
LL | impl<N, M> TypeVal<usize> for Multiply<N, M> where N: TypeVal<VAL> {}
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `VAL` in implementation
error: aborting due to 2 previous errors
error: aborting due to 3 previous errors
Some errors have detailed explanations: E0046, E0412.
For more information about an error, try `rustc --explain E0046`.
For more information about this error, try `rustc --explain E0412`.