match lowering: Introduce a TestCase enum to replace most matching on PatKind
#121393
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…iaskrgr Rollup of 8 pull requests Successful merges: - rust-lang#120598 (No need to `validate_alias_bound_self_from_param_env` in `assemble_alias_bound_candidates`) - rust-lang#121386 (test that we do not support higher-ranked regions in opaque type inference) - rust-lang#121393 (match lowering: Introduce a `TestCase` enum to replace most matching on `PatKind`) - rust-lang#121401 (Fix typo in serialized.rs) - rust-lang#121427 (Fix panic when compiling `Rocket`.) - rust-lang#121439 (Fix typo in metadata.rs doc comment) - rust-lang#121441 (`DefId` to `LocalDefId`) - rust-lang#121452 (Add new maintainers to nto-qnx.md) r? `@ghost` `@rustbot` modify labels: rollup
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Rollup merge of rust-lang#121393 - Nadrieril:match-lowering-testcase, r=matthewjasper match lowering: Introduce a `TestCase` enum to replace most matching on `PatKind` Introduces `TestCase` that represents the specific outcome of a test. It complements `TestKind` which represents a test. In `MatchPair::new()` we select the appropriate `TestCase` for the pattern, and after that we almost never have to inspect the pattern directly during match lowering. Together with rust-lang#120904, this makes `MatchPair` into a standalone abstraction that hides the details of `thir::Pat`. This will become even truer in the next PR where I make `TestCase` handle or patterns. This opens the door to a lot of future simplifications. r? `@matthewjasper`
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Introduces
TestCasethat represents the specific outcome of a test. It complementsTestKindwhich represents a test. InMatchPair::new()we select the appropriateTestCasefor the pattern, and after that we almost never have to inspect the pattern directly during match lowering.Together with #120904, this makes
MatchPairinto a standalone abstraction that hides the details ofthir::Pat. This will become even truer in the next PR where I makeTestCasehandle or patterns. This opens the door to a lot of future simplifications.r? @matthewjasper