// 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_RELATIVE_TIME_FORMAT_H_ #define V8_OBJECTS_JS_RELATIVE_TIME_FORMAT_H_ #include "src/heap/factory.h" #include "src/isolate.h" #include "src/objects.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 RelativeDateTimeFormatter; } namespace v8 { namespace internal { class JSRelativeTimeFormat : public JSObject { public: // Initializes relative time format object with properties derived from input // locales and options. static MaybeHandle<JSRelativeTimeFormat> InitializeRelativeTimeFormat( Isolate* isolate, Handle<JSRelativeTimeFormat> relative_time_format_holder, Handle<Object> locales, Handle<Object> options); static Handle<JSObject> ResolvedOptions( Isolate* isolate, Handle<JSRelativeTimeFormat> format_holder); // Unpacks formatter object from corresponding JavaScript object. static icu::RelativeDateTimeFormatter* UnpackFormatter( Handle<JSRelativeTimeFormat> relative_time_format_holder); Handle<String> StyleAsString() const; Handle<String> NumericAsString() const; DECL_CAST(JSRelativeTimeFormat) // RelativeTimeFormat accessors. DECL_ACCESSORS(locale, String) DECL_ACCESSORS(formatter, Foreign) // Style: identifying the relative time format style used. // // ecma402/#sec-properties-of-intl-relativetimeformat-instances enum class Style { LONG, // Everything spelled out. SHORT, // Abbreviations used when possible. NARROW, // Use the shortest possible form. COUNT }; inline void set_style(Style style); inline Style style() const; // Numeric: identifying whether numerical descriptions are always used, or // used only when no more specific version is available (e.g., "1 day ago" vs // "yesterday"). // // ecma402/#sec-properties-of-intl-relativetimeformat-instances enum class Numeric { ALWAYS, // numerical descriptions are always used ("1 day ago") AUTO, // numerical descriptions are used only when no more specific // version is available ("yesterday") COUNT }; inline void set_numeric(Numeric numeric); inline Numeric numeric() const; // Bit positions in |flags|. #define FLAGS_BIT_FIELDS(V, _) \ V(StyleBits, Style, 2, _) \ V(NumericBits, Numeric, 1, _) DEFINE_BIT_FIELDS(FLAGS_BIT_FIELDS) #undef FLAGS_BIT_FIELDS STATIC_ASSERT(Style::LONG <= StyleBits::kMax); STATIC_ASSERT(Style::SHORT <= StyleBits::kMax); STATIC_ASSERT(Style::NARROW <= StyleBits::kMax); STATIC_ASSERT(Numeric::AUTO <= NumericBits::kMax); STATIC_ASSERT(Numeric::ALWAYS <= NumericBits::kMax); // [flags] Bit field containing various flags about the function. DECL_INT_ACCESSORS(flags) DECL_PRINTER(JSRelativeTimeFormat) DECL_VERIFIER(JSRelativeTimeFormat) // Layout description. static const int kJSRelativeTimeFormatOffset = JSObject::kHeaderSize; static const int kLocaleOffset = kJSRelativeTimeFormatOffset + kPointerSize; static const int kFormatterOffset = kLocaleOffset + kPointerSize; static const int kFlagsOffset = kFormatterOffset + kPointerSize; static const int kSize = kFlagsOffset + kPointerSize; private: DISALLOW_IMPLICIT_CONSTRUCTORS(JSRelativeTimeFormat); }; } // namespace internal } // namespace v8 #include "src/objects/object-macros-undef.h" #endif // V8_OBJECTS_JS_RELATIVE_TIME_FORMAT_H_