summaryrefslogtreecommitdiffstats
path: root/third_party/rust/pin-project-lite/tests/proper_unpin.rs
diff options
context:
space:
mode:
Diffstat (limited to 'third_party/rust/pin-project-lite/tests/proper_unpin.rs')
-rw-r--r--third_party/rust/pin-project-lite/tests/proper_unpin.rs67
1 files changed, 67 insertions, 0 deletions
diff --git a/third_party/rust/pin-project-lite/tests/proper_unpin.rs b/third_party/rust/pin-project-lite/tests/proper_unpin.rs
new file mode 100644
index 0000000000..668e975ba9
--- /dev/null
+++ b/third_party/rust/pin-project-lite/tests/proper_unpin.rs
@@ -0,0 +1,67 @@
+#![warn(rust_2018_idioms, single_use_lifetimes)]
+#![allow(dead_code)]
+
+#[macro_use]
+mod auxiliary;
+
+pub mod default {
+ use std::marker::PhantomPinned;
+
+ use pin_project_lite::pin_project;
+
+ struct Inner<T> {
+ f: T,
+ }
+
+ assert_unpin!(Inner<()>);
+ assert_not_unpin!(Inner<PhantomPinned>);
+
+ pin_project! {
+ struct Struct<T, U> {
+ #[pin]
+ f1: Inner<T>,
+ f2: U,
+ }
+ }
+
+ assert_unpin!(Struct<(), ()>);
+ assert_unpin!(Struct<(), PhantomPinned>);
+ assert_not_unpin!(Struct<PhantomPinned, ()>);
+ assert_not_unpin!(Struct<PhantomPinned, PhantomPinned>);
+
+ pin_project! {
+ #[project = EnumProj]
+ #[project_ref = EnumProjRef]
+ enum Enum<T, U> {
+ V1 {
+ #[pin]
+ f1: Inner<T>,
+ f2: U,
+ },
+ }
+ }
+
+ assert_unpin!(Enum<(), ()>);
+ assert_unpin!(Enum<(), PhantomPinned>);
+ assert_not_unpin!(Enum<PhantomPinned, ()>);
+ assert_not_unpin!(Enum<PhantomPinned, PhantomPinned>);
+
+ pin_project! {
+ struct TrivialBounds {
+ #[pin]
+ f: PhantomPinned,
+ }
+ }
+
+ assert_not_unpin!(TrivialBounds);
+
+ pin_project! {
+ struct PinRef<'a, T, U> {
+ #[pin]
+ f1: &'a mut Inner<T>,
+ f2: U,
+ }
+ }
+
+ assert_unpin!(PinRef<'_, PhantomPinned, PhantomPinned>);
+}