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denoland-deno/ops/optimizer_tests/async_result.rs
Andreu Botella 90c0381272
fix(ops): disallow memory slices as inputs to async ops (#16738)
In Rust, it is UB if a slice is mutated while borrowed except through
the slice itself, and it is also UB if a mutable slice is read while
borrowed. The op macro allows borrowing an `ArrayBuffer{,View}` as a
memory slice for the duration of an op, but this is not sound for async
ops, since the `ArrayBuffer` could be accessed from JS during the await
points. This PR therefore disallows such automatic borrowing only for
async ops.

Co-authored-by: Divy Srivastava <dj.srivastava23@gmail.com>
2023-01-15 07:40:01 +00:00

6 lines
125 B
Rust

async fn op_async_result(
state: Rc<RefCell<OpState>>,
rid: ResourceId,
) -> Result<u32, Error> {
// @test-attr:fast
}