go source for verification 2026-05-22

test/fixedbugs/bug197.go

@@ -0,0 +1,33 @@
+// errorcheck
+
+// Copyright 2009 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 int
+type U int
+
+var x int
+
+var t T = int(0)	// ERROR "cannot use|incompatible"
+var t1 T = int(x)	// ERROR "cannot use|incompatible"
+var u U = int(0)	// ERROR "cannot use|incompatible"
+var u1 U = int(x)	// ERROR "cannot use|incompatible"
+
+type S string
+var s S
+
+var s1 = s + "hello"
+var s2 = "hello" + s
+var s3 = s + string("hello")	// ERROR "invalid operation|incompatible"
+var s4 = string("hello") + s	// ERROR "invalid operation|incompatible"
+
+var r string
+
+var r1 = r + "hello"
+var r2 = "hello" + r
+var r3 = r + string("hello")
+var r4 = string("hello") + r
+