EUV: fix place of deref pattern's interior's scrutinee#138442
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bors merged 1 commit intorust-lang:masterfrom Mar 14, 2025
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EUV: fix place of deref pattern's interior's scrutinee#138442bors merged 1 commit intorust-lang:masterfrom
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Can you give this a better test name? I don't think it's describing much about what was going on here. |
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Also can you copy the commit description into the PR description? Given this is a one commit PR and all, it's a bit of indirection to tell what this does lol |
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| //@ known-bug: rust-lang/rust#125059 | |||
| //@ run-pass | |||
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Given that this doesn't actually execute anything meaningful
The place previously used here was that of the temporary holding the reference returned by `Deref::deref` or `DerefMut::deref_mut`. However, since the inner pattern of `deref!(inner)` expects the deref-target type itself, this would ICE when that type was inspected (e.g. by the EUV case for slice patterns). This adds a deref projection to fix that. Since current in-tree consumers of EUV (upvar inference and clippy) don't care about Rvalues, the place could be simplified to `self.cat_rvalue(pat.hir_id, self.pat_ty_adjusted(subpat)?)` to save some cycles. I personally find EUV to be a bit fragile, so I've opted for pedantic correctness. Maybe a `HACK` comment would suffice though?
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This PR changes a file inside |
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I've amended the test with your suggestions (plus a little extra description in the test comment) and edited the PR description. ty! |
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@bors r+ rollup |
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Rollup of 16 pull requests Successful merges: - rust-lang#136001 (Overhaul examples for PermissionsExt) - rust-lang#136230 (Reword incorrect documentation about SocketAddr having varying layout) - rust-lang#136892 (Sync Fuchsia target spec with clang Fuchsia driver) - rust-lang#136911 (Add documentation URL to selected jobs) - rust-lang#137870 ( Improve HashMap docs for const and static initializers) - rust-lang#138179 (Add `src/tools/x` to the main workspace) - rust-lang#138389 (use `expect` instead of `allow`) - rust-lang#138396 (Enable metrics and verbose tests in PR CI) - rust-lang#138398 (atomic intrinsics: clarify which types are supported and (if applicable) what happens with provenance) - rust-lang#138432 (fix: remove the check of lld not supporting `@response-file)` - rust-lang#138434 (Visit `PatField` when collecting lint levels) - rust-lang#138441 (update error message) - rust-lang#138442 (EUV: fix place of deref pattern's interior's scrutinee) - rust-lang#138457 (Remove usage of legacy scheme paths on RedoxOS) - rust-lang#138461 (Remove an outdated line from a test comment) - rust-lang#138466 (Remove myself from libs review) Failed merges: - rust-lang#138452 (Remove `RUN_CHECK_WITH_PARALLEL_QUERIES`) r? `@ghost` `@rustbot` modify labels: rollup
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Rollup merge of rust-lang#138442 - dianne:deref-pat-euv-fix, r=compiler-errors EUV: fix place of deref pattern's interior's scrutinee The place previously used here was that of the temporary holding the reference returned by `Deref::deref` or `DerefMut::deref_mut`. However, since the inner pattern of `deref!(inner)` expects the deref-target type itself, this would ICE when that type was inspected (e.g. by the EUV case for slice patterns). This adds a deref projection to fix that. Since current in-tree consumers of EUV (upvar inference and clippy) don't care about Rvalues, the place could be simplified to `self.cat_rvalue(pat.hir_id, self.pat_ty_adjusted(subpat)?)` to save some cycles. I personally find EUV to be a bit fragile, so I've opted for pedantic correctness. Maybe a `HACK` comment would suffice though? Fixes rust-lang#125059 r? `@compiler-errors`
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Rollup of 16 pull requests Successful merges: - rust-lang#136001 (Overhaul examples for PermissionsExt) - rust-lang#136230 (Reword incorrect documentation about SocketAddr having varying layout) - rust-lang#136892 (Sync Fuchsia target spec with clang Fuchsia driver) - rust-lang#136911 (Add documentation URL to selected jobs) - rust-lang#137870 ( Improve HashMap docs for const and static initializers) - rust-lang#138179 (Add `src/tools/x` to the main workspace) - rust-lang#138389 (use `expect` instead of `allow`) - rust-lang#138396 (Enable metrics and verbose tests in PR CI) - rust-lang#138398 (atomic intrinsics: clarify which types are supported and (if applicable) what happens with provenance) - rust-lang#138432 (fix: remove the check of lld not supporting `@response-file)` - rust-lang#138434 (Visit `PatField` when collecting lint levels) - rust-lang#138441 (update error message) - rust-lang#138442 (EUV: fix place of deref pattern's interior's scrutinee) - rust-lang#138457 (Remove usage of legacy scheme paths on RedoxOS) - rust-lang#138461 (Remove an outdated line from a test comment) - rust-lang#138466 (Remove myself from libs review) Failed merges: - rust-lang#138452 (Remove `RUN_CHECK_WITH_PARALLEL_QUERIES`) r? `@ghost` `@rustbot` modify labels: rollup
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The place previously used here was that of the temporary holding the reference returned by
Deref::dereforDerefMut::deref_mut. However, since the inner pattern ofderef!(inner)expects the deref-target type itself, this would ICE when that type was inspected (e.g. by the EUV case for slice patterns). This adds a deref projection to fix that.Since current in-tree consumers of EUV (upvar inference and clippy) don't care about Rvalues, the place could be simplified to
self.cat_rvalue(pat.hir_id, self.pat_ty_adjusted(subpat)?)to save some cycles. I personally find EUV to be a bit fragile, so I've opted for pedantic correctness. Maybe aHACKcomment would suffice though?Fixes #125059
r? @compiler-errors