bendns' repos / rust-analyzer
Unnamed repository; edit this file 'description' to name the repository.
Diffstat (limited to 'crates/hir-ty/src/layout/tests.rs')
-rw-r--r--crates/hir-ty/src/layout/tests.rs39
1 files changed, 39 insertions, 0 deletions
diff --git a/crates/hir-ty/src/layout/tests.rs b/crates/hir-ty/src/layout/tests.rs
index 43ace8ff03..a0ffab5518 100644
--- a/crates/hir-ty/src/layout/tests.rs
+++ b/crates/hir-ty/src/layout/tests.rs
@@ -233,6 +233,45 @@ fn return_position_impl_trait() {
foo()
}
size_and_align_expr! {
+ minicore: iterators;
+ stmts: []
+ trait Tr {}
+ impl Tr for i32 {}
+ fn foo() -> impl Iterator<Item = impl Tr> {
+ [1, 2, 3].into_iter()
+ }
+ let mut iter = foo();
+ let item = iter.next();
+ (iter, item)
+ }
+ size_and_align_expr! {
+ minicore: future;
+ stmts: []
+ use core::{future::Future, task::{Poll, Context}, pin::pin};
+ use std::{task::Wake, sync::Arc};
+ trait Tr {}
+ impl Tr for i32 {}
+ async fn f() -> impl Tr {
+ 2
+ }
+ fn unwrap_fut<T>(inp: impl Future<Output = T>) -> Poll<T> {
+ // In a normal test we could use `loop {}` or `panic!()` here,
+ // but rustc actually runs this code.
+ let pinned = pin!(inp);
+ struct EmptyWaker;
+ impl Wake for EmptyWaker {
+ fn wake(self: Arc<Self>) {
+ }
+ }
+ let waker = Arc::new(EmptyWaker).into();
+ let mut context = Context::from_waker(&waker);
+ let x = pinned.poll(&mut context);
+ x
+ }
+ let x = unwrap_fut(f());
+ x
+ }
+ size_and_align_expr! {
struct Foo<T>(T, T, (T, T));
trait T {}
impl T for Foo<i32> {}