typeck: clarify def_bm adjustments & add tests for or-patterns #68856
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…sper typeck: clarify def_bm adjustments & add tests for or-patterns Clarify the adjustment algorithm for the expected type / default binding-modes when type checking patterns with more documentation and tweaks that make the algorithm more independent of the pattern forms. Also resolve the FIXME noted for or-patterns by deciding that the current implementation is correct, noting the rationale and adding tests for the current implementation. cc rust-lang#54883 r? @oli-obk @varkor
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Rollup of 7 pull requests Successful merges: - #68129 (Correct inference of primitive operand type behind binary operation) - #68475 (Use a `ParamEnvAnd<Predicate>` for caching in `ObligationForest`) - #68856 (typeck: clarify def_bm adjustments & add tests for or-patterns) - #69051 (simplify_try: address some of eddyb's comments) - #69128 (Fix extra subslice lowering) - #69150 (Follow-up to #68848) - #69164 (Update pulldown-cmark dependency) Failed merges: r? @ghost
This was referenced Feb 15, 2020
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Clarify the adjustment algorithm for the expected type / default binding-modes when type checking patterns with more documentation and tweaks that make the algorithm more independent of the pattern forms.
Also resolve the FIXME noted for or-patterns by deciding that the current implementation is correct, noting the rationale and adding tests for the current implementation.
cc #54883
r? @oli-obk @varkor