+++ /dev/null
-/*
- * Copyright (C) 1999-2001 Harri Porten (porten@kde.org)
- * Copyright (C) 2001 Peter Kelly (pmk@post.com)
- * Copyright (C) 2003, 2004, 2005, 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.
- *
- */
-
-#ifndef JSNumberCell_h
-#define JSNumberCell_h
-
-#include "CallFrame.h"
-#include "JSCell.h"
-#include "JSImmediate.h"
-#include "Collector.h"
-#include "UString.h"
-#include <stddef.h> // for size_t
-
-namespace JSC {
-
- extern const double NaN;
- extern const double Inf;
-
- JSValuePtr jsNumberCell(ExecState*, double);
-
-#if !USE(ALTERNATE_JSIMMEDIATE)
-
- class Identifier;
- class JSCell;
- class JSObject;
- class JSString;
- class PropertySlot;
-
- struct ClassInfo;
- struct Instruction;
-
- class JSNumberCell : public JSCell {
- friend class JIT;
- friend JSValuePtr jsNumberCell(JSGlobalData*, double);
- friend JSValuePtr jsNumberCell(ExecState*, double);
- public:
- double value() const { return m_value; }
-
- virtual JSValuePtr toPrimitive(ExecState*, PreferredPrimitiveType) const;
- virtual bool getPrimitiveNumber(ExecState*, double& number, JSValuePtr& value);
- virtual bool toBoolean(ExecState*) const;
- virtual double toNumber(ExecState*) const;
- virtual UString toString(ExecState*) const;
- virtual JSObject* toObject(ExecState*) const;
-
- virtual UString toThisString(ExecState*) const;
- virtual JSObject* toThisObject(ExecState*) const;
- virtual JSValuePtr getJSNumber();
-
- void* operator new(size_t size, ExecState* exec)
- {
- #ifdef JAVASCRIPTCORE_BUILDING_ALL_IN_ONE_FILE
- return exec->heap()->inlineAllocateNumber(size);
- #else
- return exec->heap()->allocateNumber(size);
- #endif
- }
-
- void* operator new(size_t size, JSGlobalData* globalData)
- {
- #ifdef JAVASCRIPTCORE_BUILDING_ALL_IN_ONE_FILE
- return globalData->heap.inlineAllocateNumber(size);
- #else
- return globalData->heap.allocateNumber(size);
- #endif
- }
-
- static PassRefPtr<Structure> createStructure(JSValuePtr proto) { return Structure::create(proto, TypeInfo(NumberType, NeedsThisConversion)); }
-
- private:
- JSNumberCell(JSGlobalData* globalData, double value)
- : JSCell(globalData->numberStructure.get())
- , m_value(value)
- {
- }
-
- JSNumberCell(ExecState* exec, double value)
- : JSCell(exec->globalData().numberStructure.get())
- , m_value(value)
- {
- }
-
- virtual bool getUInt32(uint32_t&) const;
- virtual bool getTruncatedInt32(int32_t&) const;
- virtual bool getTruncatedUInt32(uint32_t&) const;
-
- double m_value;
- };
-
- JSValuePtr jsNumberCell(JSGlobalData*, double);
-
- inline bool isNumberCell(JSValuePtr v)
- {
- return v.isCell() && v.asCell()->isNumber();
- }
-
- inline JSNumberCell* asNumberCell(JSValuePtr v)
- {
- ASSERT(isNumberCell(v));
- return static_cast<JSNumberCell*>(v.asCell());
- }
-
- ALWAYS_INLINE JSValuePtr jsNumber(ExecState* exec, double d)
- {
- JSValuePtr v = JSImmediate::from(d);
- return v ? v : jsNumberCell(exec, d);
- }
-
- ALWAYS_INLINE JSValuePtr jsNumber(ExecState* exec, int i)
- {
- JSValuePtr v = JSImmediate::from(i);
- return v ? v : jsNumberCell(exec, i);
- }
-
- ALWAYS_INLINE JSValuePtr jsNumber(ExecState* exec, unsigned i)
- {
- JSValuePtr v = JSImmediate::from(i);
- return v ? v : jsNumberCell(exec, i);
- }
-
- ALWAYS_INLINE JSValuePtr jsNumber(ExecState* exec, long i)
- {
- JSValuePtr v = JSImmediate::from(i);
- return v ? v : jsNumberCell(exec, i);
- }
-
- ALWAYS_INLINE JSValuePtr jsNumber(ExecState* exec, unsigned long i)
- {
- JSValuePtr v = JSImmediate::from(i);
- return v ? v : jsNumberCell(exec, i);
- }
-
- ALWAYS_INLINE JSValuePtr jsNumber(ExecState* exec, long long i)
- {
- JSValuePtr v = JSImmediate::from(i);
- return v ? v : jsNumberCell(exec, static_cast<double>(i));
- }
-
- ALWAYS_INLINE JSValuePtr jsNumber(ExecState* exec, unsigned long long i)
- {
- JSValuePtr v = JSImmediate::from(i);
- return v ? v : jsNumberCell(exec, static_cast<double>(i));
- }
-
- ALWAYS_INLINE JSValuePtr jsNumber(JSGlobalData* globalData, double d)
- {
- JSValuePtr v = JSImmediate::from(d);
- return v ? v : jsNumberCell(globalData, d);
- }
-
- ALWAYS_INLINE JSValuePtr jsNumber(JSGlobalData* globalData, int i)
- {
- JSValuePtr v = JSImmediate::from(i);
- return v ? v : jsNumberCell(globalData, i);
- }
-
- ALWAYS_INLINE JSValuePtr jsNumber(JSGlobalData* globalData, unsigned i)
- {
- JSValuePtr v = JSImmediate::from(i);
- return v ? v : jsNumberCell(globalData, i);
- }
-
- ALWAYS_INLINE JSValuePtr jsNumber(JSGlobalData* globalData, long i)
- {
- JSValuePtr v = JSImmediate::from(i);
- return v ? v : jsNumberCell(globalData, i);
- }
-
- ALWAYS_INLINE JSValuePtr jsNumber(JSGlobalData* globalData, unsigned long i)
- {
- JSValuePtr v = JSImmediate::from(i);
- return v ? v : jsNumberCell(globalData, i);
- }
-
- ALWAYS_INLINE JSValuePtr jsNumber(JSGlobalData* globalData, long long i)
- {
- JSValuePtr v = JSImmediate::from(i);
- return v ? v : jsNumberCell(globalData, static_cast<double>(i));
- }
-
- ALWAYS_INLINE JSValuePtr jsNumber(JSGlobalData* globalData, unsigned long long i)
- {
- JSValuePtr v = JSImmediate::from(i);
- return v ? v : jsNumberCell(globalData, static_cast<double>(i));
- }
-
- inline bool JSValuePtr::isDoubleNumber() const
- {
- return isNumberCell(asValue());
- }
-
- inline double JSValuePtr::getDoubleNumber() const
- {
- return asNumberCell(asValue())->value();
- }
-
- inline bool JSValuePtr::isNumber() const
- {
- return JSImmediate::isNumber(asValue()) || isDoubleNumber();
- }
-
- inline double JSValuePtr::uncheckedGetNumber() const
- {
- ASSERT(isNumber());
- return JSImmediate::isImmediate(asValue()) ? JSImmediate::toDouble(asValue()) : getDoubleNumber();
- }
-
-#else
-
- ALWAYS_INLINE JSValuePtr jsNumber(ExecState*, double d)
- {
- JSValuePtr v = JSImmediate::from(d);
- ASSERT(v);
- return v;
- }
-
- ALWAYS_INLINE JSValuePtr jsNumber(ExecState*, int i)
- {
- JSValuePtr v = JSImmediate::from(i);
- ASSERT(v);
- return v;
- }
-
- ALWAYS_INLINE JSValuePtr jsNumber(ExecState*, unsigned i)
- {
- JSValuePtr v = JSImmediate::from(i);
- ASSERT(v);
- return v;
- }
-
- ALWAYS_INLINE JSValuePtr jsNumber(ExecState*, long i)
- {
- JSValuePtr v = JSImmediate::from(i);
- ASSERT(v);
- return v;
- }
-
- ALWAYS_INLINE JSValuePtr jsNumber(ExecState*, unsigned long i)
- {
- JSValuePtr v = JSImmediate::from(i);
- ASSERT(v);
- return v;
- }
-
- ALWAYS_INLINE JSValuePtr jsNumber(ExecState*, long long i)
- {
- JSValuePtr v = JSImmediate::from(static_cast<double>(i));
- ASSERT(v);
- return v;
- }
-
- ALWAYS_INLINE JSValuePtr jsNumber(ExecState*, unsigned long long i)
- {
- JSValuePtr v = JSImmediate::from(static_cast<double>(i));
- ASSERT(v);
- return v;
- }
-
- ALWAYS_INLINE JSValuePtr jsNumber(JSGlobalData*, double d)
- {
- JSValuePtr v = JSImmediate::from(d);
- ASSERT(v);
- return v;
- }
-
- ALWAYS_INLINE JSValuePtr jsNumber(JSGlobalData*, int i)
- {
- JSValuePtr v = JSImmediate::from(i);
- ASSERT(v);
- return v;
- }
-
- ALWAYS_INLINE JSValuePtr jsNumber(JSGlobalData*, unsigned i)
- {
- JSValuePtr v = JSImmediate::from(i);
- ASSERT(v);
- return v;
- }
-
- ALWAYS_INLINE JSValuePtr jsNumber(JSGlobalData*, long i)
- {
- JSValuePtr v = JSImmediate::from(i);
- ASSERT(v);
- return v;
- }
-
- ALWAYS_INLINE JSValuePtr jsNumber(JSGlobalData*, unsigned long i)
- {
- JSValuePtr v = JSImmediate::from(i);
- ASSERT(v);
- return v;
- }
-
- ALWAYS_INLINE JSValuePtr jsNumber(JSGlobalData*, long long i)
- {
- JSValuePtr v = JSImmediate::from(static_cast<double>(i));
- ASSERT(v);
- return v;
- }
-
- ALWAYS_INLINE JSValuePtr jsNumber(JSGlobalData*, unsigned long long i)
- {
- JSValuePtr v = JSImmediate::from(static_cast<double>(i));
- ASSERT(v);
- return v;
- }
-
- inline bool JSValuePtr::isDoubleNumber() const
- {
- return JSImmediate::isDoubleNumber(asValue());
- }
-
- inline double JSValuePtr::getDoubleNumber() const
- {
- return JSImmediate::doubleValue(asValue());
- }
-
- inline bool JSValuePtr::isNumber() const
- {
- return JSImmediate::isNumber(asValue());
- }
-
- inline double JSValuePtr::uncheckedGetNumber() const
- {
- ASSERT(isNumber());
- return JSImmediate::toDouble(asValue());
- }
-
-#endif
-
- ALWAYS_INLINE JSValuePtr jsNumber(ExecState*, char i)
- {
- ASSERT(JSImmediate::from(i));
- return JSImmediate::from(i);
- }
-
- ALWAYS_INLINE JSValuePtr jsNumber(ExecState*, unsigned char i)
- {
- ASSERT(JSImmediate::from(i));
- return JSImmediate::from(i);
- }
-
- ALWAYS_INLINE JSValuePtr jsNumber(ExecState*, short i)
- {
- ASSERT(JSImmediate::from(i));
- return JSImmediate::from(i);
- }
-
- ALWAYS_INLINE JSValuePtr jsNumber(ExecState*, unsigned short i)
- {
- ASSERT(JSImmediate::from(i));
- return JSImmediate::from(i);
- }
-
- ALWAYS_INLINE JSValuePtr jsNumber(JSGlobalData*, short i)
- {
- ASSERT(JSImmediate::from(i));
- return JSImmediate::from(i);
- }
-
- ALWAYS_INLINE JSValuePtr jsNumber(JSGlobalData*, unsigned short i)
- {
- ASSERT(JSImmediate::from(i));
- return JSImmediate::from(i);
- }
-
- inline JSValuePtr jsNaN(ExecState* exec)
- {
- return jsNumber(exec, NaN);
- }
-
- inline JSValuePtr jsNaN(JSGlobalData* globalData)
- {
- return jsNumber(globalData, NaN);
- }
-
- // --- JSValue inlines ----------------------------
-
- ALWAYS_INLINE JSValuePtr JSValuePtr::toJSNumber(ExecState* exec) const
- {
- return isNumber() ? asValue() : jsNumber(exec, this->toNumber(exec));
- }
-
- inline bool JSValuePtr::getNumber(double &result) const
- {
- if (isInt32Fast())
- result = getInt32Fast();
- else if (LIKELY(isDoubleNumber()))
- result = getDoubleNumber();
- else {
- ASSERT(!isNumber());
- return false;
- }
- return true;
- }
-
- inline bool JSValuePtr::numberToInt32(int32_t& arg)
- {
- if (isInt32Fast())
- arg = getInt32Fast();
- else if (LIKELY(isDoubleNumber()))
- arg = JSC::toInt32(getDoubleNumber());
- else {
- ASSERT(!isNumber());
- return false;
- }
- return true;
- }
-
- inline bool JSValuePtr::numberToUInt32(uint32_t& arg)
- {
- if (isUInt32Fast())
- arg = getUInt32Fast();
- else if (LIKELY(isDoubleNumber()))
- arg = JSC::toUInt32(getDoubleNumber());
- else if (isInt32Fast()) {
- // FIXME: I think this case can be merged with the uint case; toUInt32SlowCase
- // on a negative value is equivalent to simple static_casting.
- bool ignored;
- arg = toUInt32SlowCase(getInt32Fast(), ignored);
- } else {
- ASSERT(!isNumber());
- return false;
- }
- return true;
- }
-
-} // namespace JSC
-
-#endif // JSNumberCell_h
projects / apple / javascriptcore.git / blobdiff