| 1 | /*
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| 2 | * Copyright (C) 1999-2000 Harri Porten ([email protected])
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| 3 | * Copyright (C) 2008 Apple Inc. All Rights Reserved.
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| 4 | *
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| 5 | * This library is free software; you can redistribute it and/or
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| 6 | * modify it under the terms of the GNU Library General Public
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| 7 | * License as published by the Free Software Foundation; either
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| 8 | * version 2 of the License, or (at your option) any later version.
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| 9 | *
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| 10 | * This library is distributed in the hope that it will be useful,
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| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 13 | * Library General Public License for more details.
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| 14 | *
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| 15 | * You should have received a copy of the GNU Library General Public License
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| 16 | * along with this library; see the file COPYING.LIB. If not, write to
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| 17 | * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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| 18 | * Boston, MA 02110-1301, USA.
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| 19 | *
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| 20 | */
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| 21 |
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| 22 | #include "config.h"
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| 23 | #include "Operations.h"
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| 24 |
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| 25 | #include "Error.h"
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| 26 | #include "JSObject.h"
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| 27 | #include "JSString.h"
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| 28 | #include <math.h>
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| 29 | #include <stdio.h>
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| 30 | #include <wtf/MathExtras.h>
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| 31 |
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| 32 | #if HAVE(FLOAT_H)
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| 33 | #include <float.h>
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| 34 | #endif
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| 35 |
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| 36 | namespace JSC {
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| 37 |
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| 38 | bool JSValue::equalSlowCase(ExecState* exec, JSValue v1, JSValue v2)
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| 39 | {
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| 40 | return equalSlowCaseInline(exec, v1, v2);
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| 41 | }
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| 42 |
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| 43 | bool JSValue::strictEqualSlowCase(JSValue v1, JSValue v2)
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| 44 | {
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| 45 | return strictEqualSlowCaseInline(v1, v2);
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| 46 | }
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| 47 |
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| 48 | NEVER_INLINE JSValue throwOutOfMemoryError(ExecState* exec)
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| 49 | {
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| 50 | JSObject* error = Error::create(exec, GeneralError, "Out of memory");
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| 51 | exec->setException(error);
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| 52 | return error;
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| 53 | }
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| 54 |
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| 55 | NEVER_INLINE JSValue jsAddSlowCase(CallFrame* callFrame, JSValue v1, JSValue v2)
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| 56 | {
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| 57 | // exception for the Date exception in defaultValue()
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| 58 | JSValue p1 = v1.toPrimitive(callFrame);
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| 59 | JSValue p2 = v2.toPrimitive(callFrame);
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| 60 |
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| 61 | if (p1.isString() || p2.isString()) {
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| 62 | RefPtr<UString::Rep> value = concatenate(p1.toString(callFrame).rep(), p2.toString(callFrame).rep());
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| 63 | if (!value)
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| 64 | return throwOutOfMemoryError(callFrame);
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| 65 | return jsString(callFrame, value.release());
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| 66 | }
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| 67 |
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| 68 | return jsNumber(callFrame, p1.toNumber(callFrame) + p2.toNumber(callFrame));
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| 69 | }
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| 70 |
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| 71 | JSValue jsTypeStringForValue(CallFrame* callFrame, JSValue v)
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| 72 | {
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| 73 | if (v.isUndefined())
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| 74 | return jsNontrivialString(callFrame, "undefined");
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| 75 | if (v.isBoolean())
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| 76 | return jsNontrivialString(callFrame, "boolean");
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| 77 | if (v.isNumber())
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| 78 | return jsNontrivialString(callFrame, "number");
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| 79 | if (v.isString())
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| 80 | return jsNontrivialString(callFrame, "string");
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| 81 | if (v.isObject()) {
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| 82 | // Return "undefined" for objects that should be treated
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| 83 | // as null when doing comparisons.
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| 84 | if (asObject(v)->structure()->typeInfo().masqueradesAsUndefined())
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| 85 | return jsNontrivialString(callFrame, "undefined");
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| 86 | CallData callData;
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| 87 | if (asObject(v)->getCallData(callData) != CallTypeNone)
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| 88 | return jsNontrivialString(callFrame, "function");
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| 89 | }
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| 90 | return jsNontrivialString(callFrame, "object");
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| 91 | }
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| 92 |
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| 93 | bool jsIsObjectType(JSValue v)
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| 94 | {
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| 95 | if (!v.isCell())
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| 96 | return v.isNull();
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| 97 |
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| 98 | JSType type = asCell(v)->structure()->typeInfo().type();
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| 99 | if (type == NumberType || type == StringType)
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| 100 | return false;
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| 101 | if (type == ObjectType) {
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| 102 | if (asObject(v)->structure()->typeInfo().masqueradesAsUndefined())
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| 103 | return false;
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| 104 | CallData callData;
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| 105 | if (asObject(v)->getCallData(callData) != CallTypeNone)
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| 106 | return false;
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| 107 | }
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| 108 | return true;
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| 109 | }
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| 110 |
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| 111 | bool jsIsFunctionType(JSValue v)
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| 112 | {
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| 113 | if (v.isObject()) {
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| 114 | CallData callData;
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| 115 | if (asObject(v)->getCallData(callData) != CallTypeNone)
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| 116 | return true;
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| 117 | }
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| 118 | return false;
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| 119 | }
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| 120 |
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| 121 | } // namespace JSC
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