go source for verification 2026-05-22

test/fixedbugs/bug300.go

@@ -0,0 +1,29 @@
+// errorcheck
+
+// Copyright 2010 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.
+
+package main
+
+type T struct {
+	x, y *T
+}
+
+func main() {
+	// legal composite literals
+	_ = struct{}{}
+	_ = [42]int{}
+	_ = [...]int{}
+	_ = []int{}
+	_ = map[int]int{}
+	_ = T{}
+
+	// illegal composite literals: parentheses not allowed around literal type
+	_ = (struct{}){}    // ERROR "parenthesize"
+	_ = ([42]int){}     // ERROR "parenthesize"
+	_ = ([...]int){}    // ERROR "parenthesize"
+	_ = ([]int){}       // ERROR "parenthesize"
+	_ = (map[int]int){} // ERROR "parenthesize"
+	_ = (T){}           // ERROR "parenthesize"
+}