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// 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_
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