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// 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.
#error Internationalization is expected to be enabled.
#endif // V8_INTL_SUPPORT
#include <set>
#include <string>
#include "src/execution/isolate.h"
#include "src/heap/factory.h"
#include "src/objects/managed.h"
#include "src/objects/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 {
// Creates relative time format object with properties derived from input
// locales and options.
V8_WARN_UNUSED_RESULT static MaybeHandle<JSRelativeTimeFormat> New(
Isolate* isolate, Handle<Map> map, Handle<Object> locales,
Handle<Object> options);
V8_WARN_UNUSED_RESULT static Handle<JSObject> ResolvedOptions(
Isolate* isolate, Handle<JSRelativeTimeFormat> format_holder);
Handle<String> StyleAsString() const;
Handle<String> NumericAsString() const;
// ecma402/#sec-Intl.RelativeTimeFormat.prototype.format
V8_WARN_UNUSED_RESULT static MaybeHandle<String> Format(
Isolate* isolate, Handle<Object> value_obj, Handle<Object> unit_obj,
Handle<JSRelativeTimeFormat> format);
// ecma402/#sec-Intl.RelativeTimeFormat.prototype.formatToParts
V8_WARN_UNUSED_RESULT static MaybeHandle<JSArray> FormatToParts(
Isolate* isolate, Handle<Object> value_obj, Handle<Object> unit_obj,
Handle<JSRelativeTimeFormat> format);
V8_EXPORT_PRIVATE static const std::set<std::string>& GetAvailableLocales();
// RelativeTimeFormat accessors.
DECL_ACCESSORS(locale, String)
DECL_ACCESSORS(icu_formatter, Managed<icu::RelativeDateTimeFormatter>)
// 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.
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")
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, _)
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.
// Layout description.
static Style getStyle(const char* str);
static Numeric getNumeric(const char* str);
OBJECT_CONSTRUCTORS(JSRelativeTimeFormat, JSObject);
} // namespace internal
} // namespace v8
#include "src/objects/object-macros-undef.h"