1 files changed, 48 insertions, 0 deletions
diff --git a/dom/xslt/xpath/txNumberResult.cpp b/dom/xslt/xpath/txNumberResult.cpp
new file mode 100644
index 0000000000..370a7523d8
--- /dev/null
+++ b/dom/xslt/xpath/txNumberResult.cpp
@@ -0,0 +1,48 @@
+/* -*- 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/. */
+
+/**
+ * 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 && !std::isnan(value));
+  // OG-
+}  //-- booleanValue
+
+double NumberResult::numberValue() { return this->value; }  //-- numberValue