Initial commit: Go 1.23 release state

test/fixedbugs/issue19482.go

@@ -0,0 +1,34 @@
+// errorcheck
+
+// Copyright 2017 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.
+
+// Compiler rejected initialization of structs to composite literals
+// in a non-static setting (e.g. in a function)
+// when the struct contained a field named _.
+
+package p
+
+type T struct {
+	_ string
+}
+
+func ok() {
+	var x = T{"check"}
+	_ = x
+	_ = T{"et"}
+}
+
+var (
+	y = T{"stare"}
+	w = T{_: "look"} // ERROR "invalid field name _ in struct initializer|expected struct field name|unknown field _ in struct literal of type T"
+	_ = T{"page"}
+	_ = T{_: "out"} // ERROR "invalid field name _ in struct initializer|expected struct field name|unknown field _ in struct literal of type T"
+)
+
+func bad() {
+	var z = T{_: "verse"} // ERROR "invalid field name _ in struct initializer|expected struct field name|unknown field _ in struct literal of type T"
+	_ = z
+	_ = T{_: "itinerary"} // ERROR "invalid field name _ in struct initializer|expected struct field name|unknown field _ in struct literal of type T"
+}