Add ui test for unsupported use of Self

dtolnay · Dec 4, 2019 · a9603b8 · a9603b8
1 parent a269d7b
commit a9603b8
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diff --git a/tests/ui/unsupported-self.rs b/tests/ui/unsupported-self.rs
@@ -0,0 +1,15 @@
+use async_trait::async_trait;
+
+#[async_trait]
+pub trait Trait {
+    async fn method();
+}
+
+#[async_trait]
+impl Trait for &'static str {
+    async fn method() {
+        let _ = Self;
+    }
+}
+
+fn main() {}
diff --git a/tests/ui/unsupported-self.stderr b/tests/ui/unsupported-self.stderr
@@ -0,0 +1,5 @@
+error: Self type of this impl is unsupported in expression position
+  --> $DIR/unsupported-self.rs:11:17
+   |
+11 |         let _ = Self;
+   |                 ^^^^