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 <math.h>
34 #include <time.h>
35 #include <wtf/DateMath.h>
36 #include <wtf/MathExtras.h>
37
38 #if OS(WINCE) && !PLATFORM(QT)
39 extern "C" time_t time(time_t* timer); // Provided by libce.
40 #endif
41
42 #if HAVE(SYS_TIME_H)
43 #include <sys/time.h>
44 #endif
45
46 #if HAVE(SYS_TIMEB_H)
47 #include <sys/timeb.h>
48 #endif
49
50 using namespace WTF;
51
52 namespace JSC {
53
54 ASSERT_CLASS_FITS_IN_CELL(DateConstructor);
55
56 static EncodedJSValue JSC_HOST_CALL dateParse(ExecState*);
57 static EncodedJSValue JSC_HOST_CALL dateNow(ExecState*);
58 static EncodedJSValue JSC_HOST_CALL dateUTC(ExecState*);
59
DateConstructor(ExecState * exec,JSGlobalObject * globalObject,Structure * structure,Structure * functionStructure,DatePrototype * datePrototype)60 DateConstructor::DateConstructor(ExecState* exec, JSGlobalObject* globalObject, Structure* structure, Structure* functionStructure, DatePrototype* datePrototype)
61 : InternalFunction(&exec->globalData(), globalObject, structure, Identifier(exec, datePrototype->classInfo()->className))
62 {
63 putDirectWithoutTransition(exec->globalData(), exec->propertyNames().prototype, datePrototype, DontEnum | DontDelete | ReadOnly);
64
65 putDirectFunctionWithoutTransition(exec, new (exec) JSFunction(exec, globalObject, functionStructure, 1, exec->propertyNames().parse, dateParse), DontEnum);
66 putDirectFunctionWithoutTransition(exec, new (exec) JSFunction(exec, globalObject, functionStructure, 7, exec->propertyNames().UTC, dateUTC), DontEnum);
67 putDirectFunctionWithoutTransition(exec, new (exec) JSFunction(exec, globalObject, functionStructure, 0, exec->propertyNames().now, dateNow), DontEnum);
68
69 putDirectWithoutTransition(exec->globalData(), exec->propertyNames().length, jsNumber(7), ReadOnly | DontEnum | DontDelete);
70 }
71
72 // ECMA 15.9.3
constructDate(ExecState * exec,JSGlobalObject * globalObject,const ArgList & args)73 JSObject* constructDate(ExecState* exec, JSGlobalObject* globalObject, const ArgList& args)
74 {
75 int numArgs = args.size();
76
77 double value;
78
79 if (numArgs == 0) // new Date() ECMA 15.9.3.3
80 value = jsCurrentTime();
81 else if (numArgs == 1) {
82 if (args.at(0).inherits(&DateInstance::s_info))
83 value = asDateInstance(args.at(0))->internalNumber();
84 else {
85 JSValue primitive = args.at(0).toPrimitive(exec);
86 if (primitive.isString())
87 value = parseDate(exec, primitive.getString(exec));
88 else
89 value = primitive.toNumber(exec);
90 }
91 } else {
92 double doubleArguments[7] = {
93 args.at(0).toNumber(exec),
94 args.at(1).toNumber(exec),
95 args.at(2).toNumber(exec),
96 args.at(3).toNumber(exec),
97 args.at(4).toNumber(exec),
98 args.at(5).toNumber(exec),
99 args.at(6).toNumber(exec)
100 };
101 if (isnan(doubleArguments[0])
102 || isnan(doubleArguments[1])
103 || (numArgs >= 3 && isnan(doubleArguments[2]))
104 || (numArgs >= 4 && isnan(doubleArguments[3]))
105 || (numArgs >= 5 && isnan(doubleArguments[4]))
106 || (numArgs >= 6 && isnan(doubleArguments[5]))
107 || (numArgs >= 7 && isnan(doubleArguments[6])))
108 value = NaN;
109 else {
110 GregorianDateTime t;
111 int year = JSC::toInt32(doubleArguments[0]);
112 t.year = (year >= 0 && year <= 99) ? year : year - 1900;
113 t.month = JSC::toInt32(doubleArguments[1]);
114 t.monthDay = (numArgs >= 3) ? JSC::toInt32(doubleArguments[2]) : 1;
115 t.hour = JSC::toInt32(doubleArguments[3]);
116 t.minute = JSC::toInt32(doubleArguments[4]);
117 t.second = JSC::toInt32(doubleArguments[5]);
118 t.isDST = -1;
119 double ms = (numArgs >= 7) ? doubleArguments[6] : 0;
120 value = gregorianDateTimeToMS(exec, t, ms, false);
121 }
122 }
123
124 return new (exec) DateInstance(exec, globalObject->dateStructure(), value);
125 }
126
constructWithDateConstructor(ExecState * exec)127 static EncodedJSValue JSC_HOST_CALL constructWithDateConstructor(ExecState* exec)
128 {
129 ArgList args(exec);
130 return JSValue::encode(constructDate(exec, asInternalFunction(exec->callee())->globalObject(), args));
131 }
132
getConstructData(ConstructData & constructData)133 ConstructType DateConstructor::getConstructData(ConstructData& constructData)
134 {
135 constructData.native.function = constructWithDateConstructor;
136 return ConstructTypeHost;
137 }
138
139 // ECMA 15.9.2
callDate(ExecState * exec)140 static EncodedJSValue JSC_HOST_CALL callDate(ExecState* exec)
141 {
142 time_t localTime = time(0);
143 tm localTM;
144 getLocalTime(&localTime, &localTM);
145 GregorianDateTime ts(exec, localTM);
146 DateConversionBuffer date;
147 DateConversionBuffer time;
148 formatDate(ts, date);
149 formatTime(ts, time);
150 return JSValue::encode(jsMakeNontrivialString(exec, date, " ", time));
151 }
152
getCallData(CallData & callData)153 CallType DateConstructor::getCallData(CallData& callData)
154 {
155 callData.native.function = callDate;
156 return CallTypeHost;
157 }
158
dateParse(ExecState * exec)159 static EncodedJSValue JSC_HOST_CALL dateParse(ExecState* exec)
160 {
161 return JSValue::encode(jsNumber(parseDate(exec, exec->argument(0).toString(exec))));
162 }
163
dateNow(ExecState *)164 static EncodedJSValue JSC_HOST_CALL dateNow(ExecState*)
165 {
166 return JSValue::encode(jsNumber(jsCurrentTime()));
167 }
168
dateUTC(ExecState * exec)169 static EncodedJSValue JSC_HOST_CALL dateUTC(ExecState* exec)
170 {
171 double doubleArguments[7] = {
172 exec->argument(0).toNumber(exec),
173 exec->argument(1).toNumber(exec),
174 exec->argument(2).toNumber(exec),
175 exec->argument(3).toNumber(exec),
176 exec->argument(4).toNumber(exec),
177 exec->argument(5).toNumber(exec),
178 exec->argument(6).toNumber(exec)
179 };
180 int n = exec->argumentCount();
181 if (isnan(doubleArguments[0])
182 || isnan(doubleArguments[1])
183 || (n >= 3 && isnan(doubleArguments[2]))
184 || (n >= 4 && isnan(doubleArguments[3]))
185 || (n >= 5 && isnan(doubleArguments[4]))
186 || (n >= 6 && isnan(doubleArguments[5]))
187 || (n >= 7 && isnan(doubleArguments[6])))
188 return JSValue::encode(jsNaN());
189
190 GregorianDateTime t;
191 int year = JSC::toInt32(doubleArguments[0]);
192 t.year = (year >= 0 && year <= 99) ? year : year - 1900;
193 t.month = JSC::toInt32(doubleArguments[1]);
194 t.monthDay = (n >= 3) ? JSC::toInt32(doubleArguments[2]) : 1;
195 t.hour = JSC::toInt32(doubleArguments[3]);
196 t.minute = JSC::toInt32(doubleArguments[4]);
197 t.second = JSC::toInt32(doubleArguments[5]);
198 double ms = (n >= 7) ? doubleArguments[6] : 0;
199 return JSValue::encode(jsNumber(timeClip(gregorianDateTimeToMS(exec, t, ms, true))));
200 }
201
202 } // namespace JSC
203