1 files changed, 59 insertions, 0 deletions
diff --git a/dom/xslt/xpath/txNumberResult.cpp b/dom/xslt/xpath/txNumberResult.cpp
new file mode 100644
index 000000000..0bcbecdc5
--- /dev/null
+++ b/dom/xslt/xpath/txNumberResult.cpp
@@ -0,0 +1,59 @@
+/* -*- 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/. */
+
+/**
+ * NumberResult
+ * Represents the a number as the result of evaluating an Expr
+**/
+
+#include "mozilla/FloatingPoint.h"
+
+#include "txExprResult.h"
+
+/**
+ * Default Constructor
+**/
+
+/**
+ * Creates a new NumberResult with the value of the given double parameter
+ * @param dbl the double to use for initialization of this NumberResult's value
+**/
+NumberResult::NumberResult(double aValue, txResultRecycler* aRecycler)
+    : txAExprResult(aRecycler), value(aValue)
+{
+} //-- NumberResult
+
+/*
+ * Virtual Methods from ExprResult
+*/
+
+short NumberResult::getResultType() {
+    return txAExprResult::NUMBER;
+} //-- getResultType
+
+void
+NumberResult::stringValue(nsString& aResult)
+{
+    txDouble::toString(value, aResult);
+}
+
+const nsString*
+NumberResult::stringValuePointer()
+{
+    return nullptr;
+}
+
+bool NumberResult::booleanValue() {
+  // OG+
+  // As per the XPath spec, the boolean value of a number is true if and only if
+  // it is neither positive 0 nor negative 0 nor NaN
+  return (bool)(value != 0.0 && !mozilla::IsNaN(value));
+  // OG-
+} //-- booleanValue
+
+double NumberResult::numberValue() {
+    return this->value;
+} //-- numberValue
+