X-Git-Url: https://git.saurik.com/apple/javascriptcore.git/blobdiff_plain/b5422865f473faf3977f31b96a635c4c8c4ede09..9dae56ea45a0f5f8136a5c93d6f3a7f99399ca73:/runtime/JSNumberCell.cpp

diff --git a/runtime/JSNumberCell.cpp b/runtime/JSNumberCell.cpp
new file mode 100644
index 0000000..dd965d5
--- /dev/null
+++ b/runtime/JSNumberCell.cpp
@@ -0,0 +1,126 @@
+/*
+ *  Copyright (C) 1999-2002 Harri Porten (porten@kde.org)
+ *  Copyright (C) 2001 Peter Kelly (pmk@post.com)
+ *  Copyright (C) 2004, 2007, 2008 Apple Inc. All rights reserved.
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Library General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Library General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Library General Public License
+ *  along with this library; see the file COPYING.LIB.  If not, write to
+ *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ *  Boston, MA 02110-1301, USA.
+ *
+ */
+
+#include "config.h"
+#include "JSNumberCell.h"
+
+#include "NumberObject.h"
+#include "UString.h"
+
+namespace JSC {
+
+#if !USE(ALTERNATE_JSIMMEDIATE)
+
+JSValuePtr JSNumberCell::toPrimitive(ExecState*, PreferredPrimitiveType) const
+{
+    return const_cast<JSNumberCell*>(this);
+}
+
+bool JSNumberCell::getPrimitiveNumber(ExecState*, double& number, JSValuePtr& value)
+{
+    number = m_value;
+    value = this;
+    return true;
+}
+
+bool JSNumberCell::toBoolean(ExecState*) const
+{
+    return m_value < 0.0 || m_value > 0.0; // false for NaN
+}
+
+double JSNumberCell::toNumber(ExecState*) const
+{
+  return m_value;
+}
+
+UString JSNumberCell::toString(ExecState*) const
+{
+    if (m_value == 0.0) // +0.0 or -0.0
+        return "0";
+    return UString::from(m_value);
+}
+
+UString JSNumberCell::toThisString(ExecState*) const
+{
+    if (m_value == 0.0) // +0.0 or -0.0
+        return "0";
+    return UString::from(m_value);
+}
+
+JSObject* JSNumberCell::toObject(ExecState* exec) const
+{
+    return constructNumber(exec, const_cast<JSNumberCell*>(this));
+}
+
+JSObject* JSNumberCell::toThisObject(ExecState* exec) const
+{
+    return constructNumber(exec, const_cast<JSNumberCell*>(this));
+}
+
+bool JSNumberCell::getUInt32(uint32_t& uint32) const
+{
+    uint32 = static_cast<uint32_t>(m_value);
+    return uint32 == m_value;
+}
+
+bool JSNumberCell::getTruncatedInt32(int32_t& int32) const
+{
+    if (!(m_value >= -2147483648.0 && m_value < 2147483648.0))
+        return false;
+    int32 = static_cast<int32_t>(m_value);
+    return true;
+}
+
+bool JSNumberCell::getTruncatedUInt32(uint32_t& uint32) const
+{
+    if (!(m_value >= 0.0 && m_value < 4294967296.0))
+        return false;
+    uint32 = static_cast<uint32_t>(m_value);
+    return true;
+}
+
+JSValuePtr JSNumberCell::getJSNumber()
+{
+    return this;
+}
+
+JSValuePtr jsNumberCell(ExecState* exec, double d)
+{
+    return new (exec) JSNumberCell(exec, d);
+}
+
+JSValuePtr jsNumberCell(JSGlobalData* globalData, double d)
+{
+    return new (globalData) JSNumberCell(globalData, d);
+}
+
+#else
+
+JSValuePtr jsNumberCell(ExecState*, double)
+{
+    ASSERT_NOT_REACHED();
+    return noValue();
+}
+
+#endif
+
+} // namespace JSC