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Implement #[define_opaque] attribute for functions.

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This commit is contained in:
Oli Scherer
2024-07-26 10:04:02 +00:00
committed by Oli Scherer
parent 2c6a12ec44
commit cb4751d4b8
653 changed files with 2911 additions and 2580 deletions
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2
compiler/rustc_middle/src/query/erase.rs
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@@ -24,6 +24,7 @@ pub trait EraseType: Copy {
pub type Erase<T: EraseType> = Erased<impl Copy>;
#[inline(always)]
#[cfg_attr(not(bootstrap), define_opaque(Erase))]
pub fn erase<T: EraseType>(src: T) -> Erase<T> {
// Ensure the sizes match
const {
@@ -47,6 +48,7 @@ pub fn erase<T: EraseType>(src: T) -> Erase<T> {
/// Restores an erased value.
#[inline(always)]
#[cfg_attr(not(bootstrap), define_opaque(Erase))]
pub fn restore<T: EraseType>(value: Erase<T>) -> T {
let value: Erased<<T as EraseType>::Result> = value;
// See comment in `erase` for why we use `transmute_unchecked`.