1 files changed, 39 insertions, 0 deletions
diff --git a/layout/style/PseudoStyleType.cpp b/layout/style/PseudoStyleType.cpp
new file mode 100644
index 0000000000..21d55cc25e
--- /dev/null
+++ b/layout/style/PseudoStyleType.cpp
@@ -0,0 +1,39 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "PseudoStyleType.h"
+
+#include <ostream>
+
+namespace mozilla {
+
+std::ostream& operator<<(std::ostream& aStream, PseudoStyleType aType) {
+  switch (aType) {
+#define CSS_PSEUDO_ELEMENT(_name, _value, _flags) \
+  case PseudoStyleType::_name:                    \
+    aStream << _value;                            \
+    break;
+#include "nsCSSPseudoElementList.h"
+#undef CSS_PSEUDO_ELEMENT
+
+#define CSS_ANON_BOX(_name, _str) \
+  case PseudoStyleType::_name:    \
+    aStream << _str;              \
+    break;
+#include "nsCSSAnonBoxList.h"
+#undef CSS_ANON_BOX
+
+    case PseudoStyleType::XULTree:
+    case PseudoStyleType::NotPseudo:
+    default:
+      // Output nothing.
+      break;
+  }
+
+  return aStream;
+}
+
+};  // namespace mozilla