Auto merge of rust-lang#93878 - Aaron1011:newtype-macro, r=cjgillot

Convert `newtype_index` to a proc macro The `macro_rules!` implementation was becomng excessively complicated, and difficult to modify. The new proc macro implementation should make it much easier to add new features (e.g. skipping certain `#[derive]`s)
matthiaskrgr · Feb 25, 2022 · f6a7993 · f6a7993
2 parents d4de1f2 + 7b7b0f1
commit f6a7993
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diff --git a/compiler/rustc_index/src/lib.rs b/compiler/rustc_index/src/lib.rs
@@ -12,6 +12,8 @@ pub mod bit_set;
 pub mod interval;
 pub mod vec;
 
+pub use rustc_macros::newtype_index;
+
 /// Type size assertion. The first argument is a type and the second argument is its expected size.
 #[macro_export]
 macro_rules! static_assert_size {