| // Copyright 2018 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. |
| |
| #ifndef V8_INTL_SUPPORT |
| #error Internationalization is expected to be enabled. |
| #endif // V8_INTL_SUPPORT |
| |
| #ifndef V8_OBJECTS_JS_DATE_TIME_FORMAT_H_ |
| #define V8_OBJECTS_JS_DATE_TIME_FORMAT_H_ |
| |
| #include <set> |
| #include <string> |
| |
| #include "src/isolate.h" |
| #include "src/objects/intl-objects.h" |
| #include "src/objects/managed.h" |
| #include "unicode/uversion.h" |
| |
| // Has to be the last include (doesn't have include guards): |
| #include "src/objects/object-macros.h" |
| |
| namespace U_ICU_NAMESPACE { |
| class Locale; |
| class SimpleDateFormat; |
| } // namespace U_ICU_NAMESPACE |
| |
| namespace v8 { |
| namespace internal { |
| |
| class JSDateTimeFormat : public JSObject { |
| public: |
| V8_WARN_UNUSED_RESULT static MaybeHandle<JSDateTimeFormat> Initialize( |
| Isolate* isolate, Handle<JSDateTimeFormat> date_time_format, |
| Handle<Object> locales, Handle<Object> options); |
| |
| V8_WARN_UNUSED_RESULT static MaybeHandle<JSObject> ResolvedOptions( |
| Isolate* isolate, Handle<JSDateTimeFormat> date_time_format); |
| |
| // ecma402/#sec-unwrapdatetimeformat |
| V8_WARN_UNUSED_RESULT static MaybeHandle<JSDateTimeFormat> |
| UnwrapDateTimeFormat(Isolate* isolate, Handle<JSReceiver> format_holder); |
| |
| // Convert the options to ICU DateTimePatternGenerator skeleton. |
| static Maybe<std::string> OptionsToSkeleton(Isolate* isolate, |
| Handle<JSReceiver> options); |
| |
| // Return the time zone id which match ICU's expectation of title casing |
| // return empty string when error. |
| static std::string CanonicalizeTimeZoneID(Isolate* isolate, |
| const std::string& input); |
| |
| // ecma402/#sec-datetime-format-functions |
| // DateTime Format Functions |
| V8_WARN_UNUSED_RESULT static MaybeHandle<String> DateTimeFormat( |
| Isolate* isolate, Handle<JSDateTimeFormat> date_time_format, |
| Handle<Object> date); |
| |
| V8_WARN_UNUSED_RESULT static MaybeHandle<Object> FormatToParts( |
| Isolate* isolate, Handle<JSDateTimeFormat> date_time_format, |
| double date_value); |
| |
| // ecma-402/#sec-todatetimeoptions |
| enum class RequiredOption { kDate, kTime, kAny }; |
| enum class DefaultsOption { kDate, kTime, kAll }; |
| V8_WARN_UNUSED_RESULT static MaybeHandle<JSObject> ToDateTimeOptions( |
| Isolate* isolate, Handle<Object> input_options, RequiredOption required, |
| DefaultsOption defaults); |
| |
| V8_WARN_UNUSED_RESULT static MaybeHandle<String> ToLocaleDateTime( |
| Isolate* isolate, Handle<Object> date, Handle<Object> locales, |
| Handle<Object> options, RequiredOption required, DefaultsOption defaults); |
| |
| static std::set<std::string> GetAvailableLocales(); |
| |
| Handle<String> HourCycleAsString() const; |
| DECL_CAST(JSDateTimeFormat) |
| |
| // Layout description. |
| #define JS_DATE_TIME_FORMAT_FIELDS(V) \ |
| V(kICULocaleOffset, kTaggedSize) \ |
| V(kICUSimpleDateFormatOffset, kTaggedSize) \ |
| V(kBoundFormatOffset, kTaggedSize) \ |
| V(kFlagsOffset, kTaggedSize) \ |
| /* Total size. */ \ |
| V(kSize, 0) |
| |
| DEFINE_FIELD_OFFSET_CONSTANTS(JSObject::kHeaderSize, |
| JS_DATE_TIME_FORMAT_FIELDS) |
| #undef JS_DATE_TIME_FORMAT_FIELDS |
| |
| inline void set_hour_cycle(Intl::HourCycle hour_cycle); |
| inline Intl::HourCycle hour_cycle() const; |
| |
| // Bit positions in |flags|. |
| #define FLAGS_BIT_FIELDS(V, _) V(HourCycleBits, Intl::HourCycle, 3, _) |
| |
| DEFINE_BIT_FIELDS(FLAGS_BIT_FIELDS) |
| #undef FLAGS_BIT_FIELDS |
| |
| STATIC_ASSERT(Intl::HourCycle::kUndefined <= HourCycleBits::kMax); |
| STATIC_ASSERT(Intl::HourCycle::kH11 <= HourCycleBits::kMax); |
| STATIC_ASSERT(Intl::HourCycle::kH12 <= HourCycleBits::kMax); |
| STATIC_ASSERT(Intl::HourCycle::kH23 <= HourCycleBits::kMax); |
| STATIC_ASSERT(Intl::HourCycle::kH24 <= HourCycleBits::kMax); |
| |
| DECL_ACCESSORS(icu_locale, Managed<icu::Locale>) |
| DECL_ACCESSORS(icu_simple_date_format, Managed<icu::SimpleDateFormat>) |
| DECL_ACCESSORS(bound_format, Object) |
| DECL_INT_ACCESSORS(flags) |
| |
| DECL_PRINTER(JSDateTimeFormat) |
| DECL_VERIFIER(JSDateTimeFormat) |
| |
| OBJECT_CONSTRUCTORS(JSDateTimeFormat, JSObject); |
| }; |
| |
| } // namespace internal |
| } // namespace v8 |
| |
| #include "src/objects/object-macros-undef.h" |
| |
| #endif // V8_OBJECTS_JS_DATE_TIME_FORMAT_H_ |