1 files changed, 45 insertions, 0 deletions
diff --git a/layout/style/nsCSSAnonBoxes.cpp b/layout/style/nsCSSAnonBoxes.cpp
new file mode 100644
index 0000000000..db9f183927
--- /dev/null
+++ b/layout/style/nsCSSAnonBoxes.cpp
@@ -0,0 +1,45 @@
+/* -*- 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/. */
+
+/* atom list for CSS anonymous boxes */
+
+#include "mozilla/ArrayUtils.h"
+
+#include "nsCSSAnonBoxes.h"
+#include "nsGkAtomConsts.h"
+#include "nsStaticAtomUtils.h"
+
+using namespace mozilla;
+
+/* static */
+bool nsCSSAnonBoxes::IsTreePseudoElement(nsAtom* aPseudo) {
+  return StringBeginsWith(nsDependentAtomString(aPseudo), u":-moz-tree-"_ns);
+}
+
+#ifdef DEBUG
+/* static */
+nsStaticAtom* nsCSSAnonBoxes::GetAtomBase() {
+  return const_cast<nsStaticAtom*>(
+      nsGkAtoms::GetAtomByIndex(kAtomIndex_AnonBoxes));
+}
+
+/* static */
+void nsCSSAnonBoxes::AssertAtoms() {
+  nsStaticAtom* base = GetAtomBase();
+  size_t index = 0;
+#  define CSS_ANON_BOX(name_, value_)                                 \
+    {                                                                 \
+      RefPtr<nsAtom> atom = NS_Atomize(value_);                       \
+      MOZ_ASSERT(atom == nsGkAtoms::AnonBox_##name_,                  \
+                 "Static atom for " #name_ " has incorrect value");   \
+      MOZ_ASSERT(atom == &base[index],                                \
+                 "Static atom for " #name_ " not at expected index"); \
+      ++index;                                                        \
+    }
+#  include "nsCSSAnonBoxList.h"
+#  undef CSS_ANON_BOX
+}
+#endif