1 files changed, 57 insertions, 0 deletions
diff --git a/dom/xslt/xpath/txPredicatedNodeTest.cpp b/dom/xslt/xpath/txPredicatedNodeTest.cpp
new file mode 100644
index 000000000..4726f48f2
--- /dev/null
+++ b/dom/xslt/xpath/txPredicatedNodeTest.cpp
@@ -0,0 +1,57 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* 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 "txExpr.h"
+#include "txExprResult.h"
+#include "txSingleNodeContext.h"
+
+txPredicatedNodeTest::txPredicatedNodeTest(txNodeTest* aNodeTest,
+                                           Expr* aPredicate)
+    : mNodeTest(aNodeTest),
+      mPredicate(aPredicate)
+{
+    NS_ASSERTION(!mPredicate->isSensitiveTo(Expr::NODESET_CONTEXT),
+                 "predicate must not be context-nodeset-sensitive");
+}
+
+bool
+txPredicatedNodeTest::matches(const txXPathNode& aNode,
+                              txIMatchContext* aContext)
+{
+    if (!mNodeTest->matches(aNode, aContext)) {
+        return false;
+    }
+
+    txSingleNodeContext context(aNode, aContext);
+    RefPtr<txAExprResult> res;
+    nsresult rv = mPredicate->evaluate(&context, getter_AddRefs(res));
+    NS_ENSURE_SUCCESS(rv, false);
+
+    return res->booleanValue();
+}
+
+double
+txPredicatedNodeTest::getDefaultPriority()
+{
+    return 0.5;
+}
+
+bool
+txPredicatedNodeTest::isSensitiveTo(Expr::ContextSensitivity aContext)
+{
+    return mNodeTest->isSensitiveTo(aContext) ||
+           mPredicate->isSensitiveTo(aContext);
+}
+
+#ifdef TX_TO_STRING
+void
+txPredicatedNodeTest::toString(nsAString& aDest)
+{
+    mNodeTest->toString(aDest);
+    aDest.Append(char16_t('['));
+    mPredicate->toString(aDest);
+    aDest.Append(char16_t(']'));
+}
+#endif