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 "DateConversion.h"
26 #include "DateInstance.h"
27 #include "DatePrototype.h"
28 #include "JSFunction.h"
29 #include "JSGlobalObject.h"
30 #include "JSString.h"
31 #include "JSStringBuilder.h"
32 #include "ObjectPrototype.h"
33 #include "PrototypeFunction.h"
34 #include <math.h>
35 #include <time.h>
36 #include <wtf/DateMath.h>
37 #include <wtf/MathExtras.h>
38
39 #if OS(WINCE) && !PLATFORM(QT)
40 extern "C" time_t time(time_t* timer); // Provided by libce.
41 #endif
42
43 #if HAVE(SYS_TIME_H)
44 #include <sys/time.h>
45 #endif
46
47 #if HAVE(SYS_TIMEB_H)
48 #include <sys/timeb.h>
49 #endif
50
51 using namespace WTF;
52
53 namespace JSC {
54
55 ASSERT_CLASS_FITS_IN_CELL(DateConstructor);
56
57 static JSValue JSC_HOST_CALL dateParse(ExecState*, JSObject*, JSValue, const ArgList&);
58 static JSValue JSC_HOST_CALL dateNow(ExecState*, JSObject*, JSValue, const ArgList&);
59 static JSValue JSC_HOST_CALL dateUTC(ExecState*, JSObject*, JSValue, const ArgList&);
60
DateConstructor(ExecState * exec,NonNullPassRefPtr<Structure> structure,Structure * prototypeFunctionStructure,DatePrototype * datePrototype)61 DateConstructor::DateConstructor(ExecState* exec, NonNullPassRefPtr<Structure> structure, Structure* prototypeFunctionStructure, DatePrototype* datePrototype)
62 : InternalFunction(&exec->globalData(), structure, Identifier(exec, datePrototype->classInfo()->className))
63 {
64 putDirectWithoutTransition(exec->propertyNames().prototype, datePrototype, DontEnum|DontDelete|ReadOnly);
65
66 putDirectFunctionWithoutTransition(exec, new (exec) NativeFunctionWrapper(exec, prototypeFunctionStructure, 1, exec->propertyNames().parse, dateParse), DontEnum);
67 putDirectFunctionWithoutTransition(exec, new (exec) NativeFunctionWrapper(exec, prototypeFunctionStructure, 7, exec->propertyNames().UTC, dateUTC), DontEnum);
68 putDirectFunctionWithoutTransition(exec, new (exec) NativeFunctionWrapper(exec, prototypeFunctionStructure, 0, exec->propertyNames().now, dateNow), DontEnum);
69
70 putDirectWithoutTransition(exec->propertyNames().length, jsNumber(exec, 7), ReadOnly | DontEnum | DontDelete);
71 }
72
73 // ECMA 15.9.3
constructDate(ExecState * exec,const ArgList & args)74 JSObject* constructDate(ExecState* exec, const ArgList& args)
75 {
76 int numArgs = args.size();
77
78 double value;
79
80 if (numArgs == 0) // new Date() ECMA 15.9.3.3
81 value = jsCurrentTime();
82 else if (numArgs == 1) {
83 if (args.at(0).inherits(&DateInstance::info))
84 value = asDateInstance(args.at(0))->internalNumber();
85 else {
86 JSValue primitive = args.at(0).toPrimitive(exec);
87 if (primitive.isString())
88 value = parseDate(exec, primitive.getString(exec));
89 else
90 value = primitive.toNumber(exec);
91 }
92 } else {
93 if (isnan(args.at(0).toNumber(exec))
94 || isnan(args.at(1).toNumber(exec))
95 || (numArgs >= 3 && isnan(args.at(2).toNumber(exec)))
96 || (numArgs >= 4 && isnan(args.at(3).toNumber(exec)))
97 || (numArgs >= 5 && isnan(args.at(4).toNumber(exec)))
98 || (numArgs >= 6 && isnan(args.at(5).toNumber(exec)))
99 || (numArgs >= 7 && isnan(args.at(6).toNumber(exec))))
100 value = NaN;
101 else {
102 GregorianDateTime t;
103 int year = args.at(0).toInt32(exec);
104 t.year = (year >= 0 && year <= 99) ? year : year - 1900;
105 t.month = args.at(1).toInt32(exec);
106 t.monthDay = (numArgs >= 3) ? args.at(2).toInt32(exec) : 1;
107 t.hour = args.at(3).toInt32(exec);
108 t.minute = args.at(4).toInt32(exec);
109 t.second = args.at(5).toInt32(exec);
110 t.isDST = -1;
111 double ms = (numArgs >= 7) ? args.at(6).toNumber(exec) : 0;
112 value = gregorianDateTimeToMS(exec, t, ms, false);
113 }
114 }
115
116 return new (exec) DateInstance(exec, value);
117 }
118
constructWithDateConstructor(ExecState * exec,JSObject *,const ArgList & args)119 static JSObject* constructWithDateConstructor(ExecState* exec, JSObject*, const ArgList& args)
120 {
121 return constructDate(exec, args);
122 }
123
getConstructData(ConstructData & constructData)124 ConstructType DateConstructor::getConstructData(ConstructData& constructData)
125 {
126 constructData.native.function = constructWithDateConstructor;
127 return ConstructTypeHost;
128 }
129
130 // ECMA 15.9.2
callDate(ExecState * exec,JSObject *,JSValue,const ArgList &)131 static JSValue JSC_HOST_CALL callDate(ExecState* exec, JSObject*, JSValue, const ArgList&)
132 {
133 time_t localTime = time(0);
134 tm localTM;
135 getLocalTime(&localTime, &localTM);
136 GregorianDateTime ts(exec, localTM);
137 DateConversionBuffer date;
138 DateConversionBuffer time;
139 formatDate(ts, date);
140 formatTime(ts, time);
141 return jsMakeNontrivialString(exec, date, " ", time);
142 }
143
getCallData(CallData & callData)144 CallType DateConstructor::getCallData(CallData& callData)
145 {
146 callData.native.function = callDate;
147 return CallTypeHost;
148 }
149
dateParse(ExecState * exec,JSObject *,JSValue,const ArgList & args)150 static JSValue JSC_HOST_CALL dateParse(ExecState* exec, JSObject*, JSValue, const ArgList& args)
151 {
152 return jsNumber(exec, parseDate(exec, args.at(0).toString(exec)));
153 }
154
dateNow(ExecState * exec,JSObject *,JSValue,const ArgList &)155 static JSValue JSC_HOST_CALL dateNow(ExecState* exec, JSObject*, JSValue, const ArgList&)
156 {
157 return jsNumber(exec, jsCurrentTime());
158 }
159
dateUTC(ExecState * exec,JSObject *,JSValue,const ArgList & args)160 static JSValue JSC_HOST_CALL dateUTC(ExecState* exec, JSObject*, JSValue, const ArgList& args)
161 {
162 int n = args.size();
163 if (isnan(args.at(0).toNumber(exec))
164 || isnan(args.at(1).toNumber(exec))
165 || (n >= 3 && isnan(args.at(2).toNumber(exec)))
166 || (n >= 4 && isnan(args.at(3).toNumber(exec)))
167 || (n >= 5 && isnan(args.at(4).toNumber(exec)))
168 || (n >= 6 && isnan(args.at(5).toNumber(exec)))
169 || (n >= 7 && isnan(args.at(6).toNumber(exec))))
170 return jsNaN(exec);
171
172 GregorianDateTime t;
173 int year = args.at(0).toInt32(exec);
174 t.year = (year >= 0 && year <= 99) ? year : year - 1900;
175 t.month = args.at(1).toInt32(exec);
176 t.monthDay = (n >= 3) ? args.at(2).toInt32(exec) : 1;
177 t.hour = args.at(3).toInt32(exec);
178 t.minute = args.at(4).toInt32(exec);
179 t.second = args.at(5).toInt32(exec);
180 double ms = (n >= 7) ? args.at(6).toNumber(exec) : 0;
181 return jsNumber(exec, timeClip(gregorianDateTimeToMS(exec, t, ms, true)));
182 }
183
184 } // namespace JSC
185