Support AllowUnexported on gopherjs
Use the js package to directly mutate the RO bits in reflect.Value.
diff --git a/cmp/unsafe_gopherjs.go b/cmp/unsafe_gopherjs.go
new file mode 100644
index 0000000..966e6bd
--- /dev/null
+++ b/cmp/unsafe_gopherjs.go
@@ -0,0 +1,29 @@
+// 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.md file.
+
+// +build js
+
+package cmp
+
+import (
+ "reflect"
+
+ "github.com/gopherjs/gopherjs/js"
+)
+
+const supportAllowUnexported = true
+
+func unsafeRetrieveField(v reflect.Value, _ reflect.StructField) reflect.Value {
+ // Constants copied from reflect/value.go.
+ // Valid on versions of Go from 1.6 to 1.10, inclusive.
+ const (
+ flagStickyRO = 1 << 5
+ flagEmbedRO = 1 << 6
+ flagRO = flagStickyRO | flagEmbedRO
+ )
+
+ obj := js.InternalObject(v)
+ obj.Set("flag", obj.Get("flag").Uint64()&^uint64(flagRO))
+ return v
+}
diff --git a/cmp/unsafe_panic.go b/cmp/unsafe_panic.go
index 0d44987..5d378c8 100644
--- a/cmp/unsafe_panic.go
+++ b/cmp/unsafe_panic.go
@@ -2,7 +2,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE.md file.
-// +build appengine js
+// +build appengine
package cmp
