1 files changed, 20 insertions, 0 deletions
diff --git a/test/fixedbugs/issue17588.go b/test/fixedbugs/issue17588.go
new file mode 100644
index 0000000..0e3a14e
--- /dev/null
+++ b/test/fixedbugs/issue17588.go
@@ -0,0 +1,20 @@
+// 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.
+
+// Issue 17588: internal compiler error in typecheckclosure()
+// because in case of Func.Nname.Type == nil, Decldepth
+// is not initialized in typecheckfunc(). This test
+// produces that case.
+
+package p
+
+type F func(b T)  // ERROR "T is not a type|expected type"
+
+func T(fn F) {
+    func() {
+        fn(nil)  // If Decldepth is not initialized properly, typecheckclosure() Fatals here.
+    }()
+}