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Commit	Line	Data
	1	/*
	2	* Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
	3	* Copyright (C) 2008 Apple Inc. All Rights Reserved.
	4	*
	5	* This library is free software; you can redistribute it and/or
	6	* modify it under the terms of the GNU Library General Public
	7	* License as published by the Free Software Foundation; either
	8	* version 2 of the License, or (at your option) any later version.
	9	*
	10	* This library is distributed in the hope that it will be useful,
	11	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	13	* Library General Public License for more details.
	14	*
	15	* You should have received a copy of the GNU Library General Public License
	16	* along with this library; see the file COPYING.LIB. If not, write to
	17	* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
	18	* Boston, MA 02110-1301, USA.
	19	*
	20	*/
	21
	22	#include "config.h"
	23	#include "Operations.h"
	24
	25	#include "Error.h"
	26	#include "JSObject.h"
	27	#include "JSString.h"
	28	#include <math.h>
	29	#include <stdio.h>
	30	#include <wtf/MathExtras.h>
	31
	32	namespace JSC {
	33
	34	bool JSValue::equalSlowCase(ExecState* exec, JSValue v1, JSValue v2)
	35	{
	36	return equalSlowCaseInline(exec, v1, v2);
	37	}
	38
	39	bool JSValue::strictEqualSlowCase(ExecState* exec, JSValue v1, JSValue v2)
	40	{
	41	return strictEqualSlowCaseInline(exec, v1, v2);
	42	}
	43
	44	NEVER_INLINE JSValue jsAddSlowCase(CallFrame* callFrame, JSValue v1, JSValue v2)
	45	{
	46	// exception for the Date exception in defaultValue()
	47	JSValue p1 = v1.toPrimitive(callFrame);
	48	JSValue p2 = v2.toPrimitive(callFrame);
	49
	50	if (p1.isString())
	51	return jsString(callFrame, asString(p1), p2.toString(callFrame));
	52
	53	if (p2.isString())
	54	return jsString(callFrame, p1.toString(callFrame), asString(p2));
	55
	56	return jsNumber(p1.toNumber(callFrame) + p2.toNumber(callFrame));
	57	}
	58
	59	JSValue jsTypeStringForValue(VM& vm, JSGlobalObject* globalObject, JSValue v)
	60	{
	61	if (v.isUndefined())
	62	return vm.smallStrings.undefinedString();
	63	if (v.isBoolean())
	64	return vm.smallStrings.booleanString();
	65	if (v.isNumber())
	66	return vm.smallStrings.numberString();
	67	if (v.isString())
	68	return vm.smallStrings.stringString();
	69	if (v.isObject()) {
	70	// Return "undefined" for objects that should be treated
	71	// as null when doing comparisons.
	72	if (asObject(v)->structure()->masqueradesAsUndefined(globalObject))
	73	return vm.smallStrings.undefinedString();
	74	CallData callData;
	75	JSObject* object = asObject(v);
	76	if (object->methodTable()->getCallData(object, callData) != CallTypeNone)
	77	return vm.smallStrings.functionString();
	78	}
	79	return vm.smallStrings.objectString();
	80	}
	81
	82	JSValue jsTypeStringForValue(CallFrame* callFrame, JSValue v)
	83	{
	84	return jsTypeStringForValue(callFrame->vm(), callFrame->lexicalGlobalObject(), v);
	85	}
	86
	87	bool jsIsObjectType(CallFrame* callFrame, JSValue v)
	88	{
	89	if (!v.isCell())
	90	return v.isNull();
	91
	92	JSType type = v.asCell()->structure()->typeInfo().type();
	93	if (type == StringType)
	94	return false;
	95	if (type >= ObjectType) {
	96	if (asObject(v)->structure()->masqueradesAsUndefined(callFrame->lexicalGlobalObject()))
	97	return false;
	98	CallData callData;
	99	JSObject* object = asObject(v);
	100	if (object->methodTable()->getCallData(object, callData) != CallTypeNone)
	101	return false;
	102	}
	103	return true;
	104	}
	105
	106	bool jsIsFunctionType(JSValue v)
	107	{
	108	if (v.isObject()) {
	109	CallData callData;
	110	JSObject* object = asObject(v);
	111	if (object->methodTable()->getCallData(object, callData) != CallTypeNone)
	112	return true;
	113	}
	114	return false;
	115	}
	116
	117	} // namespace JSC