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-rw-r--r--src/test/ui/associated-types/bound-lifetime-constrained.rs48
1 files changed, 48 insertions, 0 deletions
diff --git a/src/test/ui/associated-types/bound-lifetime-constrained.rs b/src/test/ui/associated-types/bound-lifetime-constrained.rs
new file mode 100644
index 000000000..4e6754c86
--- /dev/null
+++ b/src/test/ui/associated-types/bound-lifetime-constrained.rs
@@ -0,0 +1,48 @@
+// revisions: func object clause
+
+#![allow(dead_code)]
+#![feature(rustc_attrs)]
+
+trait Foo<'a> {
+ type Item;
+}
+
+impl<'a> Foo<'a> for() {
+ type Item = ();
+}
+
+// Check that appearing in a projection input in the argument is not enough:
+#[cfg(func)]
+fn func1(_: for<'a> fn(<() as Foo<'a>>::Item) -> &'a i32) {
+ //[func]~^ ERROR E0581
+}
+
+// Check that appearing in a projection input in the return still
+// causes an error:
+#[cfg(func)]
+fn func2(_: for<'a> fn() -> <() as Foo<'a>>::Item) {
+ //[func]~^ ERROR E0581
+}
+
+#[cfg(object)]
+fn object1(_: Box<dyn for<'a> Fn(<() as Foo<'a>>::Item) -> &'a i32>) {
+ //[object]~^ ERROR E0582
+}
+
+#[cfg(object)]
+fn object2(_: Box<dyn for<'a> Fn() -> <() as Foo<'a>>::Item>) {
+ //[object]~^ ERROR E0582
+}
+
+#[cfg(clause)]
+fn clause1<T>() where T: for<'a> Fn(<() as Foo<'a>>::Item) -> &'a i32 {
+ //[clause]~^ ERROR `Output` references lifetime `'a`
+}
+
+#[cfg(clause)]
+fn clause2<T>() where T: for<'a> Fn() -> <() as Foo<'a>>::Item {
+ //[clause]~^ ERROR `Output` references lifetime `'a`
+}
+
+#[rustc_error]
+fn main() { } //[ok]~ ERROR fatal error triggered by #[rustc_error]