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-rw-r--r--src/test/ui/associated-types/associated-types-project-from-hrtb-in-fn-body.rs27
1 files changed, 27 insertions, 0 deletions
diff --git a/src/test/ui/associated-types/associated-types-project-from-hrtb-in-fn-body.rs b/src/test/ui/associated-types/associated-types-project-from-hrtb-in-fn-body.rs
new file mode 100644
index 000000000..069bf5600
--- /dev/null
+++ b/src/test/ui/associated-types/associated-types-project-from-hrtb-in-fn-body.rs
@@ -0,0 +1,27 @@
+// Check projection of an associated type out of a higher-ranked
+// trait-bound in the context of a function body.
+
+pub trait Foo<T> {
+ type A;
+
+ fn get(&self, t: T) -> Self::A;
+}
+
+fn foo<'a, I : for<'x> Foo<&'x isize>>(
+ x: <I as Foo<&'a isize>>::A)
+{
+ let y: I::A = x;
+}
+
+fn bar<'a, 'b, I : for<'x> Foo<&'x isize>>(
+ x: <I as Foo<&'a isize>>::A,
+ y: <I as Foo<&'b isize>>::A,
+ cond: bool)
+{
+ // x and y here have two distinct lifetimes:
+ let z: I::A = if cond { x } else { y };
+ //~^ ERROR lifetime may not live long enough
+ //~| ERROR lifetime may not live long enough
+}
+
+pub fn main() {}