1 files changed, 53 insertions, 0 deletions
diff --git a/dom/xslt/xpath/txNamedAttributeStep.cpp b/dom/xslt/xpath/txNamedAttributeStep.cpp
new file mode 100644
index 0000000000..18938e1dd3
--- /dev/null
+++ b/dom/xslt/xpath/txNamedAttributeStep.cpp
@@ -0,0 +1,53 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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 "nsAtom.h"
+#include "txIXPathContext.h"
+#include "txNodeSet.h"
+#include "txExpr.h"
+#include "txXPathTreeWalker.h"
+
+txNamedAttributeStep::txNamedAttributeStep(int32_t aNsID, nsAtom* aPrefix,
+                                           nsAtom* aLocalName)
+    : mNamespace(aNsID), mPrefix(aPrefix), mLocalName(aLocalName) {}
+
+nsresult txNamedAttributeStep::evaluate(txIEvalContext* aContext,
+                                        txAExprResult** aResult) {
+  *aResult = nullptr;
+
+  RefPtr<txNodeSet> nodes;
+  nsresult rv = aContext->recycler()->getNodeSet(getter_AddRefs(nodes));
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  txXPathTreeWalker walker(aContext->getContextNode());
+  if (walker.moveToNamedAttribute(mLocalName, mNamespace)) {
+    rv = nodes->append(walker.getCurrentPosition());
+    NS_ENSURE_SUCCESS(rv, rv);
+  }
+  NS_ADDREF(*aResult = nodes);
+
+  return NS_OK;
+}
+
+TX_IMPL_EXPR_STUBS_0(txNamedAttributeStep, NODESET_RESULT)
+
+bool txNamedAttributeStep::isSensitiveTo(ContextSensitivity aContext) {
+  return !!(aContext & NODE_CONTEXT);
+}
+
+#ifdef TX_TO_STRING
+void txNamedAttributeStep::toString(nsAString& aDest) {
+  aDest.Append(char16_t('@'));
+  if (mPrefix) {
+    nsAutoString prefix;
+    mPrefix->ToString(prefix);
+    aDest.Append(prefix);
+    aDest.Append(char16_t(':'));
+  }
+  nsAutoString localName;
+  mLocalName->ToString(localName);
+  aDest.Append(localName);
+}
+#endif