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Matthias Krüger 8e5f722ece
Rollup merge of #120972 - lukas-code:autoderef-type-error, r=compiler-errors 
fix ICE for deref coercions with type errors

Follow-up to https://github.com/rust-lang/rust/pull/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 (https://github.com/rust-lang/rust/pull/120550).

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

b17491c8f6/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 https://github.com/rust-lang/rust/issues/120945

r? ``@compiler-errors`` or compiler
2024-02-12 18:04:11 +01:00
..
assembly Bless/fix tests 2024-02-08 19:56:30 -05:00
auxiliary
codegen Rollup merge of #118307 - scottmcm:tuple-eq-simpler, r=joshtriplett 2024-02-11 08:25:41 +01:00
codegen-units Update tests 2024-02-07 10:42:01 +08:00
coverage Enable by default. 2024-02-09 21:13:51 +00:00
coverage-run-rustdoc coverage: Don't instrument #[automatically_derived] functions 2024-01-22 12:18:57 +11:00
debuginfo Update tests. 2024-01-27 16:38:57 +01:00
incremental Tweak delayed bug mentions. 2024-02-12 18:39:20 +11:00
mir-opt Auto merge of #120903 - matthiaskrgr:rollup-tmsuzth, r=matthiaskrgr 2024-02-11 17:43:51 +00:00
pretty Auto merge of #120227 - nnethercote:further-improve-space_between, r=petrochenkov 2024-01-31 02:01:43 +00:00
run-make Update data layouts in custom target tests for LLVM 18 2024-01-31 15:15:59 +01:00
run-make-fulldeps Auto merge of #118899 - veera-sivarajan:fix-makefile, r=Mark-Simulacrum 2024-01-05 07:42:03 +00:00
run-pass-valgrind
rustdoc Unify item relative path computation in one function 2024-02-09 14:16:37 +01:00
rustdoc-gui Rollup merge of #119746 - notriddle:notriddle/resize-close-modals, r=fmease 2024-01-22 07:56:42 +01:00
rustdoc-js Rollup merge of #118194 - notriddle:notriddle/tuple-unit, r=GuillaumeGomez 2024-01-06 16:07:46 +01:00
rustdoc-js-std Rollup merge of #118194 - notriddle:notriddle/tuple-unit, r=GuillaumeGomez 2024-01-06 16:07:46 +01:00
rustdoc-json Add regression test for is_object_safe field on traits 2023-12-23 19:00:17 +01:00
rustdoc-ui Clean inlined type alias with correct param-env 2024-02-12 04:51:49 +00:00
ui Rollup merge of #120972 - lukas-code:autoderef-type-error, r=compiler-errors 2024-02-12 18:04:11 +01:00
ui-fulldeps Rollup merge of #120734 - nnethercote:SubdiagnosticMessageOp, r=compiler-errors 2024-02-08 09:06:36 +01:00
COMPILER_TESTS.md