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-rw-r--r--tests/ui/suggestions/bad-infer-in-trait-impl.rs10
1 files changed, 10 insertions, 0 deletions
diff --git a/tests/ui/suggestions/bad-infer-in-trait-impl.rs b/tests/ui/suggestions/bad-infer-in-trait-impl.rs
new file mode 100644
index 000000000..87db2636f
--- /dev/null
+++ b/tests/ui/suggestions/bad-infer-in-trait-impl.rs
@@ -0,0 +1,10 @@
+trait Foo {
+ fn bar();
+}
+
+impl Foo for () {
+ fn bar(s: _) {}
+ //~^ ERROR the placeholder `_` is not allowed within types on item signatures for functions
+}
+
+fn main() {}