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Don't ICE when non-self part of trait goal is constrained in new solver #122319

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Self-explanatory. See test for example when this can happen.

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rustbot commented Mar 11, 2024

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. WG-trait-system-refactor The Rustc Trait System Refactor Initiative (-Znext-solver) labels Mar 11, 2024
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rustbot commented Mar 11, 2024

Some changes occurred to the core trait solver

cc @rust-lang/initiative-trait-system-refactor

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r=me after nits

// This goal is also possible w/ a GAT, but lazy_type_alias
// makes the behavior a bit more readable.
#![feature(lazy_type_alias)]
//~^ WARN the feature `lazy_type_alias` is incomplete
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Suggested change
//~^ WARN the feature `lazy_type_alias` is incomplete
#![allow(incomplete_features)]

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I actually quite like the explicit warn since it'll cause an error (and force it to be removed) when the feature is marked as not-incomplete -- rather than having this allow stay around forever.

@rust-cloud-vms rust-cloud-vms bot force-pushed the next-solver-normalizing-self-constrains-args branch from a8ac4cc to 0b6b330 Compare March 11, 2024 19:17
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If you strongly disagree w #106527 (comment), then I can update it in a follow-up, but for now

@bors r=lcnr

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bors commented Mar 11, 2024

📌 Commit 0b6b330 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-review Status: Awaiting review from the assignee but also interested parties. labels Mar 11, 2024
matthiaskrgr added a commit to matthiaskrgr/rust that referenced this pull request Mar 11, 2024
…izing-self-constrains-args, r=lcnr

Don't ICE when non-self part of trait goal is constrained in new solver

Self-explanatory. See test for example when this can happen.
bors added a commit to rust-lang-ci/rust that referenced this pull request Mar 12, 2024
…iaskrgr

Rollup of 8 pull requests

Successful merges:

 - rust-lang#115141 (Update Windows platform support)
 - rust-lang#121865 (Add FileCheck annotations to MIR-opt unnamed-fields tests)
 - rust-lang#122000 (Fix 32-bit overflows in LLVM composite constants)
 - rust-lang#122194 (Enable creating backtraces via -Ztreat-err-as-bug when stashing errors)
 - rust-lang#122319 (Don't ICE when non-self part of trait goal is constrained in new solver)
 - rust-lang#122339 (Update books)
 - rust-lang#122342 (Update /NODEFAUTLIB comment for msvc)
 - rust-lang#122343 (Remove some unnecessary `allow(incomplete_features)` in the test suite)

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit cd2efff into rust-lang:master Mar 12, 2024
11 checks passed
@rustbot rustbot added this to the 1.78.0 milestone Mar 12, 2024
rust-timer added a commit to rust-lang-ci/rust that referenced this pull request Mar 12, 2024
Rollup merge of rust-lang#122319 - compiler-errors:next-solver-normalizing-self-constrains-args, r=lcnr

Don't ICE when non-self part of trait goal is constrained in new solver

Self-explanatory. See test for example when this can happen.
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4 participants