syntax: Fix regression in diagnostics for patterns in trait method parameters

2 files changed, 13 insertions, 1 deletions

diff --git a/src/test/ui/E0642.rs b/src/test/ui/E0642.rs
index 8b74e5abe19..cfbd362c1da 100644
--- a/src/test/ui/E0642.rs
+++ b/src/test/ui/E0642.rs
@@ -6,6 +6,8 @@ trait T {
 
     fn bar((x, y): (i32, i32)) {} //~ ERROR patterns aren't allowed in methods without bodies
 
+    fn method(S { .. }: S) {} //~ ERROR patterns aren't allowed in methods without bodies
+
     fn f(&ident: &S) {} // ok
     fn g(&&ident: &&S) {} // ok
     fn h(mut ident: S) {} // ok
diff --git a/src/test/ui/E0642.stderr b/src/test/ui/E0642.stderr
index c3a230d5acf..4c82a6cbd21 100644
--- a/src/test/ui/E0642.stderr
+++ b/src/test/ui/E0642.stderr
@@ -18,6 +18,16 @@ help: give this argument a name or use an underscore to ignore it
 LL |     fn bar(_: (i32, i32)) {} //~ ERROR patterns aren't allowed in methods without bodies
    |            ^
 
-error: aborting due to 2 previous errors
+error[E0642]: patterns aren't allowed in methods without bodies
+  --> $DIR/E0642.rs:9:15
+   |
+LL |     fn method(S { .. }: S) {} //~ ERROR patterns aren't allowed in methods without bodies
+   |               ^^^^^^^^
+help: give this argument a name or use an underscore to ignore it
+   |
+LL |     fn method(_: S) {} //~ ERROR patterns aren't allowed in methods without bodies
+   |               ^
+
+error: aborting due to 3 previous errors
 
 For more information about this error, try `rustc --explain E0642`.