Rollup merge of #81730 - RustyYato:object-safe-allocator, r=Amanieu
Make `Allocator` object-safe This allows rust-lang/wg-allocators#83: polymorphic allocators
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commit
ff3c85fd65
2 changed files with 17 additions and 1 deletions
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@ -342,7 +342,10 @@ pub unsafe trait Allocator {
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///
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/// The returned adaptor also implements `Allocator` and will simply borrow this.
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#[inline(always)]
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fn by_ref(&self) -> &Self {
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fn by_ref(&self) -> &Self
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where
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Self: Sized,
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{
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self
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}
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}
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13
src/test/ui/allocator/object-safe.rs
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13
src/test/ui/allocator/object-safe.rs
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@ -0,0 +1,13 @@
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// run-pass
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// Check that `Allocator` is object safe, this allows for polymorphic allocators
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#![feature(allocator_api)]
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use std::alloc::{Allocator, System};
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fn ensure_object_safe(_: &dyn Allocator) {}
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fn main() {
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ensure_object_safe(&System);
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}
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