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authorDylan DPC <99973273+Dylan-DPC@users.noreply.github.com>2022-04-15 20:50:43 +0200
committerGitHub <noreply@github.com>2022-04-15 20:50:43 +0200
commit27e2d811e67f5fa0658f62aa55538bed250ecb68 (patch)
tree7bc28c59c246ec719f8c082463929c4d41bd2377 /compiler/rustc_mir_transform/src/coverage/debug.rs
parent1e6fe5855a115ef7f17f3e17205fab7340775701 (diff)
parenta3dd654ae9f9002d3ff47e45a9a9b6afcb484d2f (diff)
downloadrust-27e2d811e67f5fa0658f62aa55538bed250ecb68.tar.gz
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Rollup merge of #94457 - jhpratt:stabilize-derive_default_enum, r=davidtwco
Stabilize `derive_default_enum`

This stabilizes `#![feature(derive_default_enum)]`, as proposed in [RFC 3107](https://github.com/rust-lang/rfcs/pull/3107) and tracked in #87517. In short, it permits you to `#[derive(Default)]` on `enum`s, indicating what the default should be by placing a `#[default]` attribute on the desired variant (which must be a unit variant in the interest of forward compatibility).

```````@rustbot``````` label +S-waiting-on-review +T-lang
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