error-msg: impl better suggestion for `E0532`

3 files changed, 136 insertions, 0 deletions

diff --git a/tests/ui/pattern/issue-106862.fixed b/tests/ui/pattern/issue-106862.fixed
new file mode 100644
index 00000000000..9b27a61ffd0
--- /dev/null
+++ b/tests/ui/pattern/issue-106862.fixed
@@ -0,0 +1,44 @@
+// run-rustfix
+
+#![allow(unused)]
+
+use Foo::{FooB, FooA};
+
+enum Foo {
+    FooA { opt_x: Option<i32>, y: i32 },
+    FooB { x: i32, y: i32 }
+}
+
+fn main() {
+    let f = FooB { x: 3, y: 4 };
+
+    match f {
+        FooB { x: a, y: b } => println!("{} {}", a, b),
+        //~^ ERROR expected tuple struct or tuple variant, found variant `FooB`
+        _ => (),
+    }
+
+    match f {
+        FooB { x, y } => println!("{} {}", x, y),
+        //~^ ERROR expected tuple struct or tuple variant, found variant `FooB`
+        _ => (),
+    }
+
+    match f {
+        FooA { opt_x: Some(x), y } => println!("{} {}", x, y),
+        //~^ ERROR expected tuple struct or tuple variant, found variant `FooA`
+        _ => (),
+    }
+
+    match f {
+        FooB { x: a, y: _ } => println!("{}", a),
+        //~^ ERROR expected tuple struct or tuple variant, found variant `FooB`
+        _ => (),
+    }
+
+    match f {
+        FooB { x, y } => (),
+        //~^ ERROR expected tuple struct or tuple variant, found variant `FooB`
+        _ => (),
+    }
+}
diff --git a/tests/ui/pattern/issue-106862.rs b/tests/ui/pattern/issue-106862.rs
new file mode 100644
index 00000000000..590430a7843
--- /dev/null
+++ b/tests/ui/pattern/issue-106862.rs
@@ -0,0 +1,44 @@
+// run-rustfix
+
+#![allow(unused)]
+
+use Foo::{FooB, FooA};
+
+enum Foo {
+    FooA { opt_x: Option<i32>, y: i32 },
+    FooB { x: i32, y: i32 }
+}
+
+fn main() {
+    let f = FooB { x: 3, y: 4 };
+
+    match f {
+        FooB(a, b) => println!("{} {}", a, b),
+        //~^ ERROR expected tuple struct or tuple variant, found variant `FooB`
+        _ => (),
+    }
+
+    match f {
+        FooB(x, y) => println!("{} {}", x, y),
+        //~^ ERROR expected tuple struct or tuple variant, found variant `FooB`
+        _ => (),
+    }
+
+    match f {
+        FooA(Some(x), y) => println!("{} {}", x, y),
+        //~^ ERROR expected tuple struct or tuple variant, found variant `FooA`
+        _ => (),
+    }
+
+    match f {
+        FooB(a, _, _) => println!("{}", a),
+        //~^ ERROR expected tuple struct or tuple variant, found variant `FooB`
+        _ => (),
+    }
+
+    match f {
+        FooB() => (),
+        //~^ ERROR expected tuple struct or tuple variant, found variant `FooB`
+        _ => (),
+    }
+}
diff --git a/tests/ui/pattern/issue-106862.stderr b/tests/ui/pattern/issue-106862.stderr
new file mode 100644
index 00000000000..27f8ac97284
--- /dev/null
+++ b/tests/ui/pattern/issue-106862.stderr
@@ -0,0 +1,48 @@
+error[E0532]: expected tuple struct or tuple variant, found variant `FooB`
+  --> $DIR/issue-106862.rs:16:9
+   |
+LL |     FooB { x: i32, y: i32 }
+   |     ----------------------- `FooB` defined here
+...
+LL |         FooB(a, b) => println!("{} {}", a, b),
+   |         ^^^^^^^^^^ help: use struct pattern syntax instead: `FooB { x: a, y: b }`
+
+error[E0532]: expected tuple struct or tuple variant, found variant `FooB`
+  --> $DIR/issue-106862.rs:22:9
+   |
+LL |     FooB { x: i32, y: i32 }
+   |     ----------------------- `FooB` defined here
+...
+LL |         FooB(x, y) => println!("{} {}", x, y),
+   |         ^^^^^^^^^^ help: use struct pattern syntax instead: `FooB { x, y }`
+
+error[E0532]: expected tuple struct or tuple variant, found variant `FooA`
+  --> $DIR/issue-106862.rs:28:9
+   |
+LL |     FooA { opt_x: Option<i32>, y: i32 },
+   |     ----------------------------------- `FooA` defined here
+...
+LL |         FooA(Some(x), y) => println!("{} {}", x, y),
+   |         ^^^^^^^^^^^^^^^^ help: use struct pattern syntax instead: `FooA { opt_x: Some(x), y }`
+
+error[E0532]: expected tuple struct or tuple variant, found variant `FooB`
+  --> $DIR/issue-106862.rs:34:9
+   |
+LL |     FooB { x: i32, y: i32 }
+   |     ----------------------- `FooB` defined here
+...
+LL |         FooB(a, _, _) => println!("{}", a),
+   |         ^^^^^^^^^^^^^ help: use struct pattern syntax instead: `FooB { x: a, y: _ }`
+
+error[E0532]: expected tuple struct or tuple variant, found variant `FooB`
+  --> $DIR/issue-106862.rs:40:9
+   |
+LL |     FooB { x: i32, y: i32 }
+   |     ----------------------- `FooB` defined here
+...
+LL |         FooB() => (),
+   |         ^^^^^^ help: use struct pattern syntax instead: `FooB { x, y }`
+
+error: aborting due to 5 previous errors
+
+For more information about this error, try `rustc --explain E0532`.