mirror of https://github.com/rust-lang/rust.git
31 lines
720 B
Rust
31 lines
720 B
Rust
//@ edition: 2021
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#![feature(must_not_suspend, allocator_api)]
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#![deny(must_not_suspend)]
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use std::alloc::*;
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use std::ptr::NonNull;
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#[must_not_suspend]
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struct MyAllocatorWhichMustNotSuspend;
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unsafe impl Allocator for MyAllocatorWhichMustNotSuspend {
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fn allocate(&self, l: Layout) -> Result<NonNull<[u8]>, AllocError> {
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Global.allocate(l)
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}
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unsafe fn deallocate(&self, p: NonNull<u8>, l: Layout) {
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Global.deallocate(p, l)
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}
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}
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async fn suspend() {}
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async fn foo() {
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let x = Box::new_in(1i32, MyAllocatorWhichMustNotSuspend);
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//~^ ERROR allocator `MyAllocatorWhichMustNotSuspend` held across a suspend point, but should not be
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suspend().await;
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drop(x);
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}
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fn main() {}
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