Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

don't skip coercions for types with errors #120895

Merged
merged 1 commit into from
Feb 11, 2024
Merged

don't skip coercions for types with errors #120895

merged 1 commit into from
Feb 11, 2024

Conversation

lukas-code
Copy link
Member

fixes #120884

@rustbot
Copy link
Collaborator

rustbot commented Feb 10, 2024

r? @davidtwco

rustbot has assigned @davidtwco.
They will have a look at your PR within the next two weeks and either review your PR or reassign to another reviewer.

Use r? to explicitly pick a reviewer

@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 Feb 10, 2024
@compiler-errors
Copy link
Member

👍

@bors r+ rollup

@bors
Copy link
Contributor

bors commented Feb 10, 2024

📌 Commit e330fe9 has been approved by compiler-errors

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 Feb 10, 2024
@matthiaskrgr matthiaskrgr mentioned this pull request Feb 11, 2024
Merged
bors added a commit to rust-lang-ci/rust that referenced this pull request Feb 11, 2024
@bors
Auto merge of rust-lang#120903 - matthiaskrgr:rollup-tmsuzth, r=matth…
7ffdfda 
…iaskrgr

Rollup of 9 pull requests

Successful merges:

 - rust-lang#119213 (simd intrinsics: add simd_shuffle_generic and other missing intrinsics)
 - rust-lang#120272 (Suppress suggestions in derive macro)
 - rust-lang#120773 (large_assignments: Allow moves into functions)
 - rust-lang#120874 (Take empty `where` bounds into account when suggesting predicates)
 - rust-lang#120882 (interpret/write_discriminant: when encoding niched variant, ensure the stored value matches)
 - rust-lang#120883 (interpret: rename ReadExternStatic → ExternStatic)
 - rust-lang#120890 (Adapt `llvm-has-rust-patches` validation to take `llvm-config` into account.)
 - rust-lang#120895 (don't skip coercions for types with errors)
 - rust-lang#120896 (Print kind of coroutine closure)

r? `@ghost`
`@rustbot` modify labels: rollup
bors added a commit to rust-lang-ci/rust that referenced this pull request Feb 11, 2024
@bors
Auto merge of rust-lang#120903 - matthiaskrgr:rollup-tmsuzth, r=matth…
aba3b36 
…iaskrgr

Rollup of 9 pull requests

Successful merges:

 - rust-lang#119213 (simd intrinsics: add simd_shuffle_generic and other missing intrinsics)
 - rust-lang#120272 (Suppress suggestions in derive macro)
 - rust-lang#120773 (large_assignments: Allow moves into functions)
 - rust-lang#120874 (Take empty `where` bounds into account when suggesting predicates)
 - rust-lang#120882 (interpret/write_discriminant: when encoding niched variant, ensure the stored value matches)
 - rust-lang#120883 (interpret: rename ReadExternStatic → ExternStatic)
 - rust-lang#120890 (Adapt `llvm-has-rust-patches` validation to take `llvm-config` into account.)
 - rust-lang#120895 (don't skip coercions for types with errors)
 - rust-lang#120896 (Print kind of coroutine closure)

r? `@ghost`
`@rustbot` modify labels: rollup
bors added a commit to rust-lang-ci/rust that referenced this pull request Feb 11, 2024
@bors
Auto merge of rust-lang#120903 - matthiaskrgr:rollup-tmsuzth, r=matth…
a8ba864 
…iaskrgr

Rollup of 9 pull requests

Successful merges:

 - rust-lang#119213 (simd intrinsics: add simd_shuffle_generic and other missing intrinsics)
 - rust-lang#120272 (Suppress suggestions in derive macro)
 - rust-lang#120773 (large_assignments: Allow moves into functions)
 - rust-lang#120874 (Take empty `where` bounds into account when suggesting predicates)
 - rust-lang#120882 (interpret/write_discriminant: when encoding niched variant, ensure the stored value matches)
 - rust-lang#120883 (interpret: rename ReadExternStatic → ExternStatic)
 - rust-lang#120890 (Adapt `llvm-has-rust-patches` validation to take `llvm-config` into account.)
 - rust-lang#120895 (don't skip coercions for types with errors)
 - rust-lang#120896 (Print kind of coroutine closure)

r? `@ghost`
`@rustbot` modify labels: rollup
bors added a commit to rust-lang-ci/rust that referenced this pull request Feb 11, 2024
@bors
Auto merge of rust-lang#120903 - matthiaskrgr:rollup-tmsuzth, r=matth…
a166af7 
…iaskrgr

Rollup of 9 pull requests

Successful merges:

 - rust-lang#119213 (simd intrinsics: add simd_shuffle_generic and other missing intrinsics)
 - rust-lang#120272 (Suppress suggestions in derive macro)
 - rust-lang#120773 (large_assignments: Allow moves into functions)
 - rust-lang#120874 (Take empty `where` bounds into account when suggesting predicates)
 - rust-lang#120882 (interpret/write_discriminant: when encoding niched variant, ensure the stored value matches)
 - rust-lang#120883 (interpret: rename ReadExternStatic → ExternStatic)
 - rust-lang#120890 (Adapt `llvm-has-rust-patches` validation to take `llvm-config` into account.)
 - rust-lang#120895 (don't skip coercions for types with errors)
 - rust-lang#120896 (Print kind of coroutine closure)

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit 302301b into rust-lang:master Feb 11, 2024
11 checks passed
@rustbot rustbot added this to the 1.78.0 milestone Feb 11, 2024
rust-timer added a commit to rust-lang-ci/rust that referenced this pull request Feb 11, 2024
@rust-timer
Unrolled build for rust-lang#120895
18af35c 
Rollup merge of rust-lang#120895 - lukas-code:error-coercions-ice, r=compiler-errors

don't skip coercions for types with errors

fixes rust-lang#120884
@lukas-code lukas-code deleted the error-coercions-ice branch February 11, 2024 19:57
@matthiaskrgr matthiaskrgr mentioned this pull request Feb 11, 2024
Closed
@lukas-code lukas-code mentioned this pull request Feb 12, 2024
Merged
matthiaskrgr added a commit to matthiaskrgr/rust that referenced this pull request Feb 12, 2024
@matthiaskrgr
Rollup merge of rust-lang#120972 - lukas-code:autoderef-type-error, r…
513e9a7 
…=compiler-errors

fix ICE for deref coercions with type errors

Follow-up to rust-lang#120895, where I made types with errors go through the full coercion code, which is necessary if we want to build MIR for bodies with errors (rust-lang#120550).

The code for coercing `&T` to `&U` currently assumes that autoderef for `&T` will succeed for at least two steps (`&T` and `T`):

https://github.com/rust-lang/rust/blob/b17491c8f6d555386104dfd82004c01bfef09c95/compiler/rustc_hir_typeck/src/coercion.rs#L339-L464

But for types with errors, we previously only returned the no-op autoderef step (`&{type error}` -> `&{type error}`) and then stopped early. This PR changes autoderef for types with errors to still go through the built-in derefs (e.g. `&&{type error}` -> `&{type error}` -> `{type error}`) and only stop early when it would have to go looking for `Deref` trait impls.

fixes rust-lang#120945

r? `@compiler-errors` or compiler
matthiaskrgr added a commit to matthiaskrgr/rust that referenced this pull request Feb 12, 2024
@matthiaskrgr
Rollup merge of rust-lang#120972 - lukas-code:autoderef-type-error, r…
8e5f722 
…=compiler-errors

fix ICE for deref coercions with type errors

Follow-up to rust-lang#120895, where I made types with errors go through the full coercion code, which is necessary if we want to build MIR for bodies with errors (rust-lang#120550).

The code for coercing `&T` to `&U` currently assumes that autoderef for `&T` will succeed for at least two steps (`&T` and `T`):

https://github.com/rust-lang/rust/blob/b17491c8f6d555386104dfd82004c01bfef09c95/compiler/rustc_hir_typeck/src/coercion.rs#L339-L464

But for types with errors, we previously only returned the no-op autoderef step (`&{type error}` -> `&{type error}`) and then stopped early. This PR changes autoderef for types with errors to still go through the built-in derefs (e.g. `&&{type error}` -> `&{type error}` -> `{type error}`) and only stop early when it would have to go looking for `Deref` trait impls.

fixes rust-lang#120945

r? ``@compiler-errors`` or compiler
rust-timer added a commit to rust-lang-ci/rust that referenced this pull request Feb 12, 2024
@rust-timer
Unrolled build for rust-lang#120972
b5d2222 
Rollup merge of rust-lang#120972 - lukas-code:autoderef-type-error, r=compiler-errors

fix ICE for deref coercions with type errors

Follow-up to rust-lang#120895, where I made types with errors go through the full coercion code, which is necessary if we want to build MIR for bodies with errors (rust-lang#120550).

The code for coercing `&T` to `&U` currently assumes that autoderef for `&T` will succeed for at least two steps (`&T` and `T`):

https://github.com/rust-lang/rust/blob/b17491c8f6d555386104dfd82004c01bfef09c95/compiler/rustc_hir_typeck/src/coercion.rs#L339-L464

But for types with errors, we previously only returned the no-op autoderef step (`&{type error}` -> `&{type error}`) and then stopped early. This PR changes autoderef for types with errors to still go through the built-in derefs (e.g. `&&{type error}` -> `&{type error}` -> `{type error}`) and only stop early when it would have to go looking for `Deref` trait impls.

fixes rust-lang#120945

r? ``@compiler-errors`` or compiler
lnicola pushed a commit to lnicola/rust-analyzer that referenced this pull request Apr 7, 2024
@matthiaskrgr
Rollup merge of #120972 - lukas-code:autoderef-type-error, r=compiler…
50fb1d1 
…-errors

fix ICE for deref coercions with type errors

Follow-up to rust-lang/rust#120895, where I made types with errors go through the full coercion code, which is necessary if we want to build MIR for bodies with errors (rust-lang/rust#120550).

The code for coercing `&T` to `&U` currently assumes that autoderef for `&T` will succeed for at least two steps (`&T` and `T`):

https://github.com/rust-lang/rust/blob/b17491c8f6d555386104dfd82004c01bfef09c95/compiler/rustc_hir_typeck/src/coercion.rs#L339-L464

But for types with errors, we previously only returned the no-op autoderef step (`&{type error}` -> `&{type error}`) and then stopped early. This PR changes autoderef for types with errors to still go through the built-in derefs (e.g. `&&{type error}` -> `&{type error}` -> `{type error}`) and only stop early when it would have to go looking for `Deref` trait impls.

fixes rust-lang/rust#120945

r? ``@compiler-errors`` or compiler
RalfJung pushed a commit to RalfJung/rust-analyzer that referenced this pull request Apr 27, 2024
@matthiaskrgr
Rollup merge of #120972 - lukas-code:autoderef-type-error, r=compiler…
80d3eef 
…-errors

fix ICE for deref coercions with type errors

Follow-up to rust-lang/rust#120895, where I made types with errors go through the full coercion code, which is necessary if we want to build MIR for bodies with errors (rust-lang/rust#120550).

The code for coercing `&T` to `&U` currently assumes that autoderef for `&T` will succeed for at least two steps (`&T` and `T`):

https://github.com/rust-lang/rust/blob/b17491c8f6d555386104dfd82004c01bfef09c95/compiler/rustc_hir_typeck/src/coercion.rs#L339-L464

But for types with errors, we previously only returned the no-op autoderef step (`&{type error}` -> `&{type error}`) and then stopped early. This PR changes autoderef for types with errors to still go through the built-in derefs (e.g. `&&{type error}` -> `&{type error}` -> `{type error}`) and only stop early when it would have to go looking for `Deref` trait impls.

fixes rust-lang/rust#120945

r? ``@compiler-errors`` or compiler
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Reviewers
No reviews
Assignees

@davidtwco davidtwco

Labels
S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
Projects
None yet
Milestone
1.78.0
Development

Successfully merging this pull request may close these issues.

ICE: Attempting to cast non-castable types FnDef(DefId(0:3 ~ mvce[19cf]::redundant), [ReErased]) and *mut u8
5 participants
@lukas-code @rustbot @compiler-errors @bors @davidtwco