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Auto merge of #13167 - iDawer:exhaustive_patterns, r=Veykril

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feat: Implement `feature(exhaustive_patterns)` from unstable Rust

Closes #12753

Recognize Rust's unstable `#![feature(exhaustive_patterns)]` (RFC 1872). Allow omitting visibly uninhabited variants from `match` expressions when the feature is on.

This adjusts match checking to the current implementation of the postponed RFC 1872 in rustc.
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bors 2022-09-02 12:32:36 +00:00
commit 4f8153e4a5
9 changed files with 272 additions and 21 deletions
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crates/hir-expand/src/name.rs
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@ -336,6 +336,7 @@ pub mod known {
test,
test_case,
recursion_limit,
feature,
// Safe intrinsics
abort,
add_with_overflow,