1 /*
2 * Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
3 * Copyright (C) 2004, 2005, 2006, 2007, 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 Lesser 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 * Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
18 * USA
19 *
20 */
21
22 #include "config.h"
23 #include "DateConstructor.h"
24
25 #include "DateInstance.h"
26 #include "DateMath.h"
27 #include "DatePrototype.h"
28 #include "JSGlobalObject.h"
29 #include "JSString.h"
30 #include "ObjectPrototype.h"
31 #include "PrototypeFunction.h"
32 #include <math.h>
33 #include <time.h>
34 #include <wtf/MathExtras.h>
35
36 #if HAVE(SYS_TIME_H)
37 #include <sys/time.h>
38 #endif
39
40 #if HAVE(SYS_TIMEB_H)
41 #include <sys/timeb.h>
42 #endif
43
44 namespace JSC {
45
46 // TODO: MakeTime (15.9.11.1) etc. ?
47
48 ASSERT_CLASS_FITS_IN_CELL(DateConstructor);
49
50 static JSValuePtr dateParse(ExecState*, JSObject*, JSValuePtr, const ArgList&);
51 static JSValuePtr dateNow(ExecState*, JSObject*, JSValuePtr, const ArgList&);
52 static JSValuePtr dateUTC(ExecState*, JSObject*, JSValuePtr, const ArgList&);
53
DateConstructor(ExecState * exec,PassRefPtr<Structure> structure,Structure * prototypeFunctionStructure,DatePrototype * datePrototype)54 DateConstructor::DateConstructor(ExecState* exec, PassRefPtr<Structure> structure, Structure* prototypeFunctionStructure, DatePrototype* datePrototype)
55 : InternalFunction(&exec->globalData(), structure, Identifier(exec, datePrototype->classInfo()->className))
56 {
57 putDirectWithoutTransition(exec->propertyNames().prototype, datePrototype, DontEnum|DontDelete|ReadOnly);
58
59 putDirectFunctionWithoutTransition(exec, new (exec) PrototypeFunction(exec, prototypeFunctionStructure, 1, exec->propertyNames().parse, dateParse), DontEnum);
60 putDirectFunctionWithoutTransition(exec, new (exec) PrototypeFunction(exec, prototypeFunctionStructure, 7, exec->propertyNames().UTC, dateUTC), DontEnum);
61 putDirectFunctionWithoutTransition(exec, new (exec) PrototypeFunction(exec, prototypeFunctionStructure, 0, exec->propertyNames().now, dateNow), DontEnum);
62
63 putDirectWithoutTransition(exec->propertyNames().length, jsNumber(exec, 7), ReadOnly | DontEnum | DontDelete);
64 }
65
66 // ECMA 15.9.3
constructDate(ExecState * exec,const ArgList & args)67 JSObject* constructDate(ExecState* exec, const ArgList& args)
68 {
69 int numArgs = args.size();
70
71 double value;
72
73 if (numArgs == 0) // new Date() ECMA 15.9.3.3
74 value = getCurrentUTCTime();
75 else if (numArgs == 1) {
76 if (args.at(exec, 0).isObject(&DateInstance::info))
77 value = asDateInstance(args.at(exec, 0))->internalNumber();
78 else {
79 JSValuePtr primitive = args.at(exec, 0).toPrimitive(exec);
80 if (primitive.isString())
81 value = parseDate(primitive.getString());
82 else
83 value = primitive.toNumber(exec);
84 }
85 } else {
86 if (isnan(args.at(exec, 0).toNumber(exec))
87 || isnan(args.at(exec, 1).toNumber(exec))
88 || (numArgs >= 3 && isnan(args.at(exec, 2).toNumber(exec)))
89 || (numArgs >= 4 && isnan(args.at(exec, 3).toNumber(exec)))
90 || (numArgs >= 5 && isnan(args.at(exec, 4).toNumber(exec)))
91 || (numArgs >= 6 && isnan(args.at(exec, 5).toNumber(exec)))
92 || (numArgs >= 7 && isnan(args.at(exec, 6).toNumber(exec))))
93 value = NaN;
94 else {
95 GregorianDateTime t;
96 int year = args.at(exec, 0).toInt32(exec);
97 t.year = (year >= 0 && year <= 99) ? year : year - 1900;
98 t.month = args.at(exec, 1).toInt32(exec);
99 t.monthDay = (numArgs >= 3) ? args.at(exec, 2).toInt32(exec) : 1;
100 t.hour = args.at(exec, 3).toInt32(exec);
101 t.minute = args.at(exec, 4).toInt32(exec);
102 t.second = args.at(exec, 5).toInt32(exec);
103 t.isDST = -1;
104 double ms = (numArgs >= 7) ? args.at(exec, 6).toNumber(exec) : 0;
105 value = gregorianDateTimeToMS(t, ms, false);
106 }
107 }
108
109 DateInstance* result = new (exec) DateInstance(exec->lexicalGlobalObject()->dateStructure());
110 result->setInternalValue(jsNumber(exec, timeClip(value)));
111 return result;
112 }
113
constructWithDateConstructor(ExecState * exec,JSObject *,const ArgList & args)114 static JSObject* constructWithDateConstructor(ExecState* exec, JSObject*, const ArgList& args)
115 {
116 return constructDate(exec, args);
117 }
118
getConstructData(ConstructData & constructData)119 ConstructType DateConstructor::getConstructData(ConstructData& constructData)
120 {
121 constructData.native.function = constructWithDateConstructor;
122 return ConstructTypeHost;
123 }
124
125 // ECMA 15.9.2
callDate(ExecState * exec,JSObject *,JSValuePtr,const ArgList &)126 static JSValuePtr callDate(ExecState* exec, JSObject*, JSValuePtr, const ArgList&)
127 {
128 time_t localTime = time(0);
129 tm localTM;
130 getLocalTime(&localTime, &localTM);
131 GregorianDateTime ts(localTM);
132 return jsNontrivialString(exec, formatDate(ts) + " " + formatTime(ts, false));
133 }
134
getCallData(CallData & callData)135 CallType DateConstructor::getCallData(CallData& callData)
136 {
137 callData.native.function = callDate;
138 return CallTypeHost;
139 }
140
dateParse(ExecState * exec,JSObject *,JSValuePtr,const ArgList & args)141 static JSValuePtr dateParse(ExecState* exec, JSObject*, JSValuePtr, const ArgList& args)
142 {
143 return jsNumber(exec, parseDate(args.at(exec, 0).toString(exec)));
144 }
145
dateNow(ExecState * exec,JSObject *,JSValuePtr,const ArgList &)146 static JSValuePtr dateNow(ExecState* exec, JSObject*, JSValuePtr, const ArgList&)
147 {
148 return jsNumber(exec, getCurrentUTCTime());
149 }
150
dateUTC(ExecState * exec,JSObject *,JSValuePtr,const ArgList & args)151 static JSValuePtr dateUTC(ExecState* exec, JSObject*, JSValuePtr, const ArgList& args)
152 {
153 int n = args.size();
154 if (isnan(args.at(exec, 0).toNumber(exec))
155 || isnan(args.at(exec, 1).toNumber(exec))
156 || (n >= 3 && isnan(args.at(exec, 2).toNumber(exec)))
157 || (n >= 4 && isnan(args.at(exec, 3).toNumber(exec)))
158 || (n >= 5 && isnan(args.at(exec, 4).toNumber(exec)))
159 || (n >= 6 && isnan(args.at(exec, 5).toNumber(exec)))
160 || (n >= 7 && isnan(args.at(exec, 6).toNumber(exec))))
161 return jsNaN(exec);
162
163 GregorianDateTime t;
164 int year = args.at(exec, 0).toInt32(exec);
165 t.year = (year >= 0 && year <= 99) ? year : year - 1900;
166 t.month = args.at(exec, 1).toInt32(exec);
167 t.monthDay = (n >= 3) ? args.at(exec, 2).toInt32(exec) : 1;
168 t.hour = args.at(exec, 3).toInt32(exec);
169 t.minute = args.at(exec, 4).toInt32(exec);
170 t.second = args.at(exec, 5).toInt32(exec);
171 double ms = (n >= 7) ? args.at(exec, 6).toNumber(exec) : 0;
172 return jsNumber(exec, gregorianDateTimeToMS(t, ms, true));
173 }
174
175 } // namespace JSC
176