diff -r 000000000000 -r 6474c204b198 dom/xslt/xpath/txLiteralExpr.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/xslt/xpath/txLiteralExpr.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,97 @@
+/* -*- 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"
+
+nsresult
+txLiteralExpr::evaluate(txIEvalContext* aContext, txAExprResult** aResult)
+{
+    NS_ENSURE_TRUE(mValue, NS_ERROR_OUT_OF_MEMORY);
+
+    *aResult = mValue;
+    NS_ADDREF(*aResult);
+
+    return NS_OK;
+}
+
+static Expr::ResultType resultTypes[] =
+{
+    Expr::NODESET_RESULT, // NODESET
+    Expr::BOOLEAN_RESULT, // BOOLEAN
+    Expr::NUMBER_RESULT,  // NUMBER
+    Expr::STRING_RESULT,  // STRING
+    Expr::RTF_RESULT      // RESULT_TREE_FRAGMENT
+};
+
+Expr::ResultType
+txLiteralExpr::getReturnType()
+{
+    return resultTypes[mValue->getResultType()];
+}
+
+Expr*
+txLiteralExpr::getSubExprAt(uint32_t aPos)
+{
+    return nullptr;
+}
+void
+txLiteralExpr::setSubExprAt(uint32_t aPos, Expr* aExpr)
+{
+    NS_NOTREACHED("setting bad subexpression index");
+}
+
+bool
+txLiteralExpr::isSensitiveTo(ContextSensitivity aContext)
+{
+    return false;
+}
+
+#ifdef TX_TO_STRING
+void
+txLiteralExpr::toString(nsAString& aStr)
+{
+    switch (mValue->getResultType()) {
+        case txAExprResult::NODESET:
+        {
+            aStr.AppendLiteral(" { Nodeset literal } ");
+            return;
+        }
+        case txAExprResult::BOOLEAN:
+        {
+            if (mValue->booleanValue()) {
+              aStr.AppendLiteral("true()");
+            }
+            else {
+              aStr.AppendLiteral("false()");
+            }
+            return;
+        }
+        case txAExprResult::NUMBER:
+        {
+            txDouble::toString(mValue->numberValue(), aStr);
+            return;
+        }
+        case txAExprResult::STRING:
+        {
+            StringResult* strRes =
+                static_cast<StringResult*>(static_cast<txAExprResult*>
+                                       (mValue));
+            char16_t ch = '\'';
+            if (strRes->mValue.FindChar(ch) != kNotFound) {
+                ch = '\"';
+            }
+            aStr.Append(ch);
+            aStr.Append(strRes->mValue);
+            aStr.Append(ch);
+            return;
+        }
+        case txAExprResult::RESULT_TREE_FRAGMENT:
+        {
+            aStr.AppendLiteral(" { RTF literal } ");
+            return;
+        }
+    }
+}
+#endif