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
32namespace JSC {
33
34bool JSValue::equalSlowCase(ExecState* exec, JSValue v1, JSValue v2)
35{
36 return equalSlowCaseInline(exec, v1, v2);
37}
38
39bool JSValue::strictEqualSlowCase(ExecState* exec, JSValue v1, JSValue v2)
40{
41 return strictEqualSlowCaseInline(exec, v1, v2);
42}
43
44NEVER_INLINE JSValue throwOutOfMemoryError(ExecState* exec)
45{
46 JSObject* error = Error::create(exec, GeneralError, message: "Out of memory");
47 exec->setException(error);
48 return error;
49}
50
51NEVER_INLINE JSValue jsAddSlowCase(CallFrame* callFrame, JSValue v1, JSValue v2)
52{
53 // exception for the Date exception in defaultValue()
54 JSValue p1 = v1.toPrimitive(exec: callFrame);
55 JSValue p2 = v2.toPrimitive(exec: callFrame);
56
57 if (p1.isString()) {
58 return p2.isString()
59 ? jsString(exec: callFrame, s1: asString(value: p1), s2: asString(value: p2))
60 : jsString(exec: callFrame, s1: asString(value: p1), u2: p2.toString(exec: callFrame));
61 }
62 if (p2.isString())
63 return jsString(exec: callFrame, u1: p1.toString(exec: callFrame), s2: asString(value: p2));
64
65 return jsNumber(exec: callFrame, d: p1.toNumber(exec: callFrame) + p2.toNumber(exec: callFrame));
66}
67
68JSValue jsTypeStringForValue(CallFrame* callFrame, JSValue v)
69{
70 if (v.isUndefined())
71 return jsNontrivialString(exec: callFrame, s: "undefined");
72 if (v.isBoolean())
73 return jsNontrivialString(exec: callFrame, s: "boolean");
74 if (v.isNumber())
75 return jsNontrivialString(exec: callFrame, s: "number");
76 if (v.isString())
77 return jsNontrivialString(exec: callFrame, s: "string");
78 if (v.isObject()) {
79 // Return "undefined" for objects that should be treated
80 // as null when doing comparisons.
81 if (asObject(value: v)->structure()->typeInfo().masqueradesAsUndefined())
82 return jsNontrivialString(exec: callFrame, s: "undefined");
83 CallData callData;
84 if (asObject(value: v)->getCallData(callData) != CallTypeNone)
85 return jsNontrivialString(exec: callFrame, s: "function");
86 }
87 return jsNontrivialString(exec: callFrame, s: "object");
88}
89
90bool jsIsObjectType(JSValue v)
91{
92 if (!v.isCell())
93 return v.isNull();
94
95 JSType type = asCell(value: v)->structure()->typeInfo().type();
96 if (type == NumberType || type == StringType)
97 return false;
98 if (type == ObjectType) {
99 if (asObject(value: v)->structure()->typeInfo().masqueradesAsUndefined())
100 return false;
101 CallData callData;
102 if (asObject(value: v)->getCallData(callData) != CallTypeNone)
103 return false;
104 }
105 return true;
106}
107
108bool jsIsFunctionType(JSValue v)
109{
110 if (v.isObject()) {
111 CallData callData;
112 if (asObject(value: v)->getCallData(callData) != CallTypeNone)
113 return true;
114 }
115 return false;
116}
117
118} // namespace JSC
119

source code of qtscript/src/3rdparty/javascriptcore/JavaScriptCore/runtime/Operations.cpp