| // Copyright 2013 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| // limitations under the License. |
| |
| #ifndef V8_I18N_H_ |
| #define V8_I18N_H_ |
| |
| #include "src/base/timezone-cache.h" |
| #include "src/objects.h" |
| #include "unicode/uversion.h" |
| |
| namespace U_ICU_NAMESPACE { |
| class BreakIterator; |
| class Collator; |
| class DecimalFormat; |
| class SimpleDateFormat; |
| class TimeZone; |
| } |
| |
| namespace v8 { |
| namespace internal { |
| |
| template <typename T> |
| class Handle; |
| |
| class DateFormat { |
| public: |
| // Create a formatter for the specificied locale and options. Returns the |
| // resolved settings for the locale / options. |
| static icu::SimpleDateFormat* InitializeDateTimeFormat( |
| Isolate* isolate, |
| Handle<String> locale, |
| Handle<JSObject> options, |
| Handle<JSObject> resolved); |
| |
| // Unpacks date format object from corresponding JavaScript object. |
| static icu::SimpleDateFormat* UnpackDateFormat(Isolate* isolate, |
| Handle<JSObject> obj); |
| |
| // Release memory we allocated for the DateFormat once the JS object that |
| // holds the pointer gets garbage collected. |
| static void DeleteDateFormat(const v8::WeakCallbackInfo<void>& data); |
| |
| // Layout description. |
| static const int kSimpleDateFormat = JSObject::kHeaderSize; |
| static const int kSize = kSimpleDateFormat + kPointerSize; |
| |
| private: |
| DateFormat(); |
| }; |
| |
| |
| class NumberFormat { |
| public: |
| // Create a formatter for the specificied locale and options. Returns the |
| // resolved settings for the locale / options. |
| static icu::DecimalFormat* InitializeNumberFormat( |
| Isolate* isolate, |
| Handle<String> locale, |
| Handle<JSObject> options, |
| Handle<JSObject> resolved); |
| |
| // Unpacks number format object from corresponding JavaScript object. |
| static icu::DecimalFormat* UnpackNumberFormat(Isolate* isolate, |
| Handle<JSObject> obj); |
| |
| // Release memory we allocated for the NumberFormat once the JS object that |
| // holds the pointer gets garbage collected. |
| static void DeleteNumberFormat(const v8::WeakCallbackInfo<void>& data); |
| |
| // Layout description. |
| static const int kDecimalFormat = JSObject::kHeaderSize; |
| static const int kSize = kDecimalFormat + kPointerSize; |
| |
| private: |
| NumberFormat(); |
| }; |
| |
| |
| class Collator { |
| public: |
| // Create a collator for the specificied locale and options. Returns the |
| // resolved settings for the locale / options. |
| static icu::Collator* InitializeCollator( |
| Isolate* isolate, |
| Handle<String> locale, |
| Handle<JSObject> options, |
| Handle<JSObject> resolved); |
| |
| // Unpacks collator object from corresponding JavaScript object. |
| static icu::Collator* UnpackCollator(Isolate* isolate, Handle<JSObject> obj); |
| |
| // Release memory we allocated for the Collator once the JS object that holds |
| // the pointer gets garbage collected. |
| static void DeleteCollator(const v8::WeakCallbackInfo<void>& data); |
| |
| // Layout description. |
| static const int kCollator = JSObject::kHeaderSize; |
| static const int kSize = kCollator + kPointerSize; |
| |
| private: |
| Collator(); |
| }; |
| |
| class V8BreakIterator { |
| public: |
| // Create a BreakIterator for the specificied locale and options. Returns the |
| // resolved settings for the locale / options. |
| static icu::BreakIterator* InitializeBreakIterator( |
| Isolate* isolate, |
| Handle<String> locale, |
| Handle<JSObject> options, |
| Handle<JSObject> resolved); |
| |
| // Unpacks break iterator object from corresponding JavaScript object. |
| static icu::BreakIterator* UnpackBreakIterator(Isolate* isolate, |
| Handle<JSObject> obj); |
| |
| // Release memory we allocated for the BreakIterator once the JS object that |
| // holds the pointer gets garbage collected. |
| static void DeleteBreakIterator(const v8::WeakCallbackInfo<void>& data); |
| |
| // Layout description. |
| static const int kBreakIterator = JSObject::kHeaderSize; |
| static const int kUnicodeString = kBreakIterator + kPointerSize; |
| static const int kSize = kUnicodeString + kPointerSize; |
| |
| private: |
| V8BreakIterator(); |
| }; |
| |
| const UChar* GetUCharBufferFromFlat(const String::FlatContent& flat, |
| std::unique_ptr<uc16[]>* dest, |
| int32_t length); |
| MUST_USE_RESULT Object* LocaleConvertCase(Handle<String> s, Isolate* isolate, |
| bool is_to_upper, const char* lang); |
| MUST_USE_RESULT Object* ConvertToLower(Handle<String> s, Isolate* isolate); |
| MUST_USE_RESULT Object* ConvertToUpper(Handle<String> s, Isolate* isolate); |
| MUST_USE_RESULT Object* ConvertCase(Handle<String> s, bool is_upper, |
| Isolate* isolate); |
| |
| // ICUTimezoneCache calls out to ICU for TimezoneCache |
| // functionality in a straightforward way. |
| class ICUTimezoneCache : public base::TimezoneCache { |
| public: |
| ICUTimezoneCache(); |
| |
| ~ICUTimezoneCache() override; |
| |
| const char* LocalTimezone(double time_ms) override; |
| |
| double DaylightSavingsOffset(double time_ms) override; |
| |
| double LocalTimeOffset() override; |
| |
| void Clear() override; |
| |
| private: |
| icu::TimeZone* GetTimeZone(); |
| |
| bool GetOffsets(double time_ms, int32_t* raw_offset, int32_t* dst_offset); |
| |
| icu::TimeZone* timezone_; |
| |
| static const int32_t kMaxTimezoneChars = 100; |
| char timezone_name_[kMaxTimezoneChars]; |
| char dst_timezone_name_[kMaxTimezoneChars]; |
| }; |
| |
| } // namespace internal |
| } // namespace v8 |
| |
| #endif // V8_I18N_H_ |