Initial commit: Go 1.23 release state

test/undef.go

@@ -0,0 +1,45 @@
+// 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.
+
+// Test line numbers in error messages.
+// Does not compile.
+
+package main
+
+var (
+	_ = x	// ERROR "undefined.*x"
+	_ = x	// ERROR "undefined.*x"
+	_ = x	// ERROR "undefined.*x"
+)
+
+type T struct {
+	y int
+}
+
+func foo() *T { return &T{y: 99} }
+func bar() int { return y }	// ERROR "undefined.*y"
+
+type T1 struct {
+	y1 int
+}
+
+func foo1() *T1 { return &T1{y1: 99} }
+var y1 = 2
+func bar1() int { return y1 }
+
+func f1(val interface{}) {
+	switch v := val.(type) {
+	default:
+		println(v)
+	}
+}
+
+func f2(val interface{}) {
+	switch val.(type) {
+	default:
+		println(v)	// ERROR "undefined.*v"
+	}
+}