30 lines
768 B
Rust
30 lines
768 B
Rust
// Verifies that computing a layout of a generator tainted by type errors
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// doesn't ICE. Regression test for #80998.
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//
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// edition:2018
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#![feature(type_alias_impl_trait)]
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use std::future::Future;
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pub struct Task<F: Future>(F);
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impl<F: Future> Task<F> {
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const fn new() -> Self {
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todo!()
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}
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fn spawn(&self, _: impl FnOnce() -> F) {
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todo!()
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}
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}
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fn main() {
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async fn cb() {
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let a = Foo; //~ ERROR cannot find value `Foo` in this scope
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}
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type F = impl Future;
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// Check that statics are inhabited computes they layout.
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static POOL: Task<F> = Task::new();
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//~^ ERROR: cannot check whether the hidden type of `layout_error[b009]::main::F::{opaque#0}` satisfies auto traits
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Task::spawn(&POOL, || cb());
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}
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