x/tools: support Go 1.9 type aliases
For #18130.
Change-Id: Ice695602619dbbf851af970e790f07ff2ac2c141
Reviewed-on: https://go-review.googlesource.com/36623
Reviewed-by: Robert Griesemer <gri@golang.org>
diff --git a/cmd/guru/isAlias18.go b/cmd/guru/isAlias18.go
new file mode 100644
index 0000000..6a2a4c0
--- /dev/null
+++ b/cmd/guru/isAlias18.go
@@ -0,0 +1,15 @@
+// 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.
+
+// +build !go1.9
+
+package main
+
+import "go/types"
+
+func isAlias(obj *types.TypeName) bool {
+ return false // there are no type aliases before Go 1.9
+}
+
+const HasAlias = false
