Initial commit: Go 1.23 release state

test/fixedbugs/issue14006.go

@@ -0,0 +1,67 @@
+// errorcheck
+
+// Copyright 2016 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Literals that happen to resolve to named constants
+// may be used as label names (see issue 13684). Make
+// sure that other literals don't crash the compiler.
+
+package main
+
+const labelname = 1
+
+func main() {
+	goto labelname
+labelname:
+}
+
+func f() {
+	var x int
+	switch x {
+	case 1:
+		2:	// ERROR "unexpected :|expected .*;.* or .*}.* or newline|value computed is not used"
+	case 2:
+	}
+
+	switch x {
+	case 1:
+		2: ;	// ERROR "unexpected :|expected .*;.* or .*}.* or newline|value computed is not used"
+	case 2:
+	}
+
+	var y string
+	switch y {
+	case "foo":
+		"bar":	// ERROR "unexpected :|expected .*;.* or .*}.* or newline|value computed is not used"
+	case "bar":
+	}
+
+	switch y {
+	case "foo":
+		"bar": ;	// ERROR "unexpected :|expected .*;.* or .*}.* or newline|value computed is not used"
+	case "bar":
+	}
+
+	var z bool
+	switch {
+	case z:
+		labelname:	// ERROR "missing statement after label"
+	case false:
+	}
+}
+
+func g() {
+	var z bool
+	switch {
+	case z:
+		labelname:	// ERROR "label labelname defined and not used|previous definition|defined and not used"
+	}
+
+	switch {
+	case z:
+		labelname: ;	// ERROR "label labelname already defined at LINE-5|label .*labelname.* already defined"
+	case false:
+	}
+}