1 files changed, 79 insertions, 0 deletions

diff --git a/src/test/ui/parser/issues/issue-87086-colon-path-sep.rs b/src/test/ui/parser/issues/issue-87086-colon-path-sep.rs
new file mode 100644
index 000000000..0b7b67496
--- /dev/null
+++ b/src/test/ui/parser/issues/issue-87086-colon-path-sep.rs
@@ -0,0 +1,79 @@
+// Tests that a suggestion is issued if the user wrote a colon instead of
+// a path separator in a match arm.
+
+mod qux {
+    pub enum Foo {
+        Bar,
+        Baz,
+    }
+}
+
+use qux::Foo;
+
+fn f() -> Foo { Foo::Bar }
+
+fn g1() {
+    match f() {
+        Foo:Bar => {}
+        //~^ ERROR: expected one of
+        //~| HELP: maybe write a path separator here
+        _ => {}
+    }
+    match f() {
+        qux::Foo:Bar => {}
+        //~^ ERROR: expected one of
+        //~| HELP: maybe write a path separator here
+        _ => {}
+    }
+    match f() {
+        qux:Foo::Baz => {}
+        //~^ ERROR: expected one of
+        //~| HELP: maybe write a path separator here
+        _ => {}
+    }
+    match f() {
+        qux: Foo::Baz if true => {}
+        //~^ ERROR: expected one of
+        //~| HELP: maybe write a path separator here
+        _ => {}
+    }
+    if let Foo:Bar = f() {
+    //~^ ERROR: expected one of
+    //~| HELP: maybe write a path separator here
+    }
+}
+
+fn g1_neg() {
+    match f() {
+        ref qux: Foo::Baz => {}
+        //~^ ERROR: expected one of
+        //~| HELP: maybe write a path separator here
+        _ => {}
+    }
+}
+
+fn g2_neg() {
+    match f() {
+        mut qux: Foo::Baz => {}
+        //~^ ERROR: expected one of
+        //~| HELP: maybe write a path separator here
+        _ => {}
+    }
+}
+
+fn main() {
+    let myfoo = Foo::Bar;
+    match myfoo {
+        Foo::Bar => {}
+        Foo:Bar::Baz => {}
+        //~^ ERROR: expected one of
+        //~| HELP: maybe write a path separator here
+        //~| ERROR: failed to resolve: `Bar` is a variant, not a module
+    }
+    match myfoo {
+        Foo::Bar => {}
+        Foo:Bar => {}
+        //~^ ERROR: expected one of
+        //~| HELP: maybe write a path separator here
+    }
+}