Merge tag 'debian/1.52.1+dfsg1-1_exp2' into proxmox/buster

[rustc.git] / src / test / ui / generic-associated-types / constraint-assoc-type-suggestion.rs

diff --git a/src/test/ui/generic-associated-types/constraint-assoc-type-suggestion.rs b/src/test/ui/generic-associated-types/constraint-assoc-type-suggestion.rs
new file mode 100644 (file)
index 0000000..36db3d1
--- /dev/null
+++ b/src/test/ui/generic-associated-types/constraint-assoc-type-suggestion.rs
@@ -0,0 +1,17 @@
+// Test that correct syntax is used in suggestion to constrain associated type
+
+#![feature(generic_associated_types)]
+//~^ WARNING the feature `generic_associated_types` is incomplete
+
+trait X {
+    type Y<T>;
+}
+
+fn f<T: X>(a: T::Y<i32>) {
+    //~^ HELP consider constraining the associated type `<T as X>::Y<i32>` to `Vec<i32>`
+    //~| SUGGESTION Y<i32> = Vec<i32>>
+    let b: Vec<i32> = a;
+    //~^ ERROR mismatched types
+}
+
+fn main() {}