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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/date.h" | 5 #include "src/date.h" |
6 | 6 |
7 #include "src/objects.h" | 7 #include "src/objects.h" |
8 #include "src/objects-inl.h" | 8 #include "src/objects-inl.h" |
9 | 9 |
10 #ifdef V8_I18N_SUPPORT | |
11 #include "src/i18n.h" | |
12 #endif | |
13 | |
14 namespace v8 { | 10 namespace v8 { |
15 namespace internal { | 11 namespace internal { |
16 | 12 |
17 | 13 |
18 static const int kDaysIn4Years = 4 * 365 + 1; | 14 static const int kDaysIn4Years = 4 * 365 + 1; |
19 static const int kDaysIn100Years = 25 * kDaysIn4Years - 1; | 15 static const int kDaysIn100Years = 25 * kDaysIn4Years - 1; |
20 static const int kDaysIn400Years = 4 * kDaysIn100Years + 1; | 16 static const int kDaysIn400Years = 4 * kDaysIn100Years + 1; |
21 static const int kDays1970to2000 = 30 * 365 + 7; | 17 static const int kDays1970to2000 = 30 * 365 + 7; |
22 static const int kDaysOffset = 1000 * kDaysIn400Years + 5 * kDaysIn400Years - | 18 static const int kDaysOffset = 1000 * kDaysIn400Years + 5 * kDaysIn400Years - |
23 kDays1970to2000; | 19 kDays1970to2000; |
24 static const int kYearsOffset = 400000; | 20 static const int kYearsOffset = 400000; |
25 static const char kDaysInMonths[] = | 21 static const char kDaysInMonths[] = |
26 {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}; | 22 {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}; |
27 | 23 |
28 DateCache::DateCache() | |
29 : stamp_(0), | |
30 tz_cache_( | |
31 #ifdef V8_I18N_SUPPORT | |
32 FLAG_icu_timezone_data ? new ICUTimezoneCache() | |
33 : base::OS::CreateTimezoneCache() | |
34 #else | |
35 base::OS::CreateTimezoneCache() | |
36 #endif | |
37 ) { | |
38 ResetDateCache(); | |
39 } | |
40 | 24 |
41 void DateCache::ResetDateCache() { | 25 void DateCache::ResetDateCache() { |
42 static const int kMaxStamp = Smi::kMaxValue; | 26 static const int kMaxStamp = Smi::kMaxValue; |
43 if (stamp_->value() >= kMaxStamp) { | 27 if (stamp_->value() >= kMaxStamp) { |
44 stamp_ = Smi::kZero; | 28 stamp_ = Smi::kZero; |
45 } else { | 29 } else { |
46 stamp_ = Smi::FromInt(stamp_->value() + 1); | 30 stamp_ = Smi::FromInt(stamp_->value() + 1); |
47 } | 31 } |
48 DCHECK(stamp_ != Smi::FromInt(kInvalidStamp)); | 32 DCHECK(stamp_ != Smi::FromInt(kInvalidStamp)); |
49 for (int i = 0; i < kDSTSize; ++i) { | 33 for (int i = 0; i < kDSTSize; ++i) { |
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384 if (result == NULL || result->last_used > dst_[i].last_used) { | 368 if (result == NULL || result->last_used > dst_[i].last_used) { |
385 result = &dst_[i]; | 369 result = &dst_[i]; |
386 } | 370 } |
387 } | 371 } |
388 ClearSegment(result); | 372 ClearSegment(result); |
389 return result; | 373 return result; |
390 } | 374 } |
391 | 375 |
392 } // namespace internal | 376 } // namespace internal |
393 } // namespace v8 | 377 } // namespace v8 |
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