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
equalSlowCase(ExecState * exec,JSValue v1,JSValue v2)34 bool JSValue::equalSlowCase(ExecState* exec, JSValue v1, JSValue v2)
35 {
36 return equalSlowCaseInline(exec, v1, v2);
37 }
38
strictEqualSlowCase(ExecState * exec,JSValue v1,JSValue v2)39 bool JSValue::strictEqualSlowCase(ExecState* exec, JSValue v1, JSValue v2)
40 {
41 return strictEqualSlowCaseInline(exec, v1, v2);
42 }
43
jsAddSlowCase(CallFrame * callFrame,JSValue v1,JSValue v2)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 p2.isString()
52 ? jsString(callFrame, asString(p1), asString(p2))
53 : jsString(callFrame, asString(p1), p2.toString(callFrame));
54 }
55 if (p2.isString())
56 return jsString(callFrame, p1.toString(callFrame), asString(p2));
57
58 return jsNumber(p1.toNumber(callFrame) + p2.toNumber(callFrame));
59 }
60
jsTypeStringForValue(CallFrame * callFrame,JSValue v)61 JSValue jsTypeStringForValue(CallFrame* callFrame, JSValue v)
62 {
63 if (v.isUndefined())
64 return jsNontrivialString(callFrame, "undefined");
65 if (v.isBoolean())
66 return jsNontrivialString(callFrame, "boolean");
67 if (v.isNumber())
68 return jsNontrivialString(callFrame, "number");
69 if (v.isString())
70 return jsNontrivialString(callFrame, "string");
71 if (v.isObject()) {
72 // Return "undefined" for objects that should be treated
73 // as null when doing comparisons.
74 if (asObject(v)->structure()->typeInfo().masqueradesAsUndefined())
75 return jsNontrivialString(callFrame, "undefined");
76 CallData callData;
77 if (asObject(v)->getCallData(callData) != CallTypeNone)
78 return jsNontrivialString(callFrame, "function");
79 }
80 return jsNontrivialString(callFrame, "object");
81 }
82
jsIsObjectType(JSValue v)83 bool jsIsObjectType(JSValue v)
84 {
85 if (!v.isCell())
86 return v.isNull();
87
88 JSType type = v.asCell()->structure()->typeInfo().type();
89 if (type == NumberType || type == StringType)
90 return false;
91 if (type == ObjectType) {
92 if (asObject(v)->structure()->typeInfo().masqueradesAsUndefined())
93 return false;
94 CallData callData;
95 if (asObject(v)->getCallData(callData) != CallTypeNone)
96 return false;
97 }
98 return true;
99 }
100
jsIsFunctionType(JSValue v)101 bool jsIsFunctionType(JSValue v)
102 {
103 if (v.isObject()) {
104 CallData callData;
105 if (asObject(v)->getCallData(callData) != CallTypeNone)
106 return true;
107 }
108 return false;
109 }
110
111 } // namespace JSC
112