diff -r 000000000000 -r 6474c204b198 dom/xslt/xpath/txStringResult.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/xslt/xpath/txStringResult.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,56 @@
+/* -*- 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/. */
+
+/**
+ * StringResult
+ * Represents a String as a Result of evaluating an Expr
+**/
+#include "txExprResult.h"
+
+/**
+ * Default Constructor
+**/
+StringResult::StringResult(txResultRecycler* aRecycler)
+    : txAExprResult(aRecycler)
+{
+}
+
+/**
+ * Creates a new StringResult with the value of the given String parameter
+ * @param str the String to use for initialization of this StringResult's value
+**/
+StringResult::StringResult(const nsAString& aValue, txResultRecycler* aRecycler)
+    : txAExprResult(aRecycler), mValue(aValue)
+{
+}
+
+/*
+ * Virtual Methods from ExprResult
+*/
+
+short StringResult::getResultType() {
+    return txAExprResult::STRING;
+} //-- getResultType
+
+void
+StringResult::stringValue(nsString& aResult)
+{
+    aResult.Append(mValue);
+}
+
+const nsString*
+StringResult::stringValuePointer()
+{
+    return &mValue;
+}
+
+bool StringResult::booleanValue() {
+   return !mValue.IsEmpty();
+} //-- booleanValue
+
+double StringResult::numberValue() {
+    return txDouble::toDouble(mValue);
+} //-- numberValue
+