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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.
#ifndef V8_INTL_SUPPORT
#error Internationalization is expected to be enabled.
#endif // V8_INTL_SUPPORT
#include "src/objects/js-relative-time-format.h"
#include <map>
#include <memory>
#include <string>
#include "src/heap/factory.h"
#include "src/isolate.h"
#include "src/objects-inl.h"
#include "src/objects/intl-objects.h"
#include "src/objects/js-relative-time-format-inl.h"
#include "unicode/numfmt.h"
#include "unicode/reldatefmt.h"
// Has to be the last include (doesn't have include guards):
#include "src/objects/object-macros.h"
namespace v8 {
namespace internal {
namespace {
UDateRelativeDateTimeFormatterStyle getIcuStyle(
JSRelativeTimeFormat::Style style) {
switch (style) {
case JSRelativeTimeFormat::Style::LONG:
return UDAT_STYLE_LONG;
case JSRelativeTimeFormat::Style::SHORT:
return UDAT_STYLE_SHORT;
case JSRelativeTimeFormat::Style::NARROW:
return UDAT_STYLE_NARROW;
case JSRelativeTimeFormat::Style::COUNT:
UNREACHABLE();
}
}
JSRelativeTimeFormat::Style getStyle(const char* str) {
if (strcmp(str, "long") == 0) return JSRelativeTimeFormat::Style::LONG;
if (strcmp(str, "short") == 0) return JSRelativeTimeFormat::Style::SHORT;
if (strcmp(str, "narrow") == 0) return JSRelativeTimeFormat::Style::NARROW;
UNREACHABLE();
}
JSRelativeTimeFormat::Numeric getNumeric(const char* str) {
if (strcmp(str, "auto") == 0) return JSRelativeTimeFormat::Numeric::AUTO;
if (strcmp(str, "always") == 0) return JSRelativeTimeFormat::Numeric::ALWAYS;
UNREACHABLE();
}
} // namespace
MaybeHandle<JSRelativeTimeFormat>
JSRelativeTimeFormat::InitializeRelativeTimeFormat(
Isolate* isolate, Handle<JSRelativeTimeFormat> relative_time_format_holder,
Handle<Object> input_locales, Handle<Object> input_options) {
Factory* factory = isolate->factory();
// 4. If options is undefined, then
Handle<JSReceiver> options;
if (input_options->IsUndefined(isolate)) {
// a. Let options be ObjectCreate(null).
options = isolate->factory()->NewJSObjectWithNullProto();
// 5. Else
} else {
// a. Let options be ? ToObject(options).
ASSIGN_RETURN_ON_EXCEPTION(isolate, options,
Object::ToObject(isolate, input_options),
JSRelativeTimeFormat);
}
// 10. Let r be ResolveLocale(%RelativeTimeFormat%.[[AvailableLocales]],
// requestedLocales, opt,
// %RelativeTimeFormat%.[[RelevantExtensionKeys]],
// localeData).
Handle<JSObject> r;
ASSIGN_RETURN_ON_EXCEPTION(isolate, r,
Intl::ResolveLocale(isolate, "relativetimeformat",
input_locales, options),
JSRelativeTimeFormat);
Handle<Object> locale_obj =
JSObject::GetDataProperty(r, factory->locale_string());
Handle<String> locale;
ASSIGN_RETURN_ON_EXCEPTION(isolate, locale,
Object::ToString(isolate, locale_obj),
JSRelativeTimeFormat);
// 11. Let locale be r.[[Locale]].
// 12. Set relativeTimeFormat.[[Locale]] to locale.
relative_time_format_holder->set_locale(*locale);
// 14. Let s be ? GetOption(options, "style", "string",
// «"long", "short", "narrow"», "long").
std::unique_ptr<char[]> style_str = nullptr;
std::vector<const char*> style_values = {"long", "short", "narrow"};
Maybe<bool> maybe_found_style =
Intl::GetStringOption(isolate, options, "style", style_values,
"Intl.RelativeTimeFormat", &style_str);
Style style_enum = Style::LONG;
MAYBE_RETURN(maybe_found_style, MaybeHandle<JSRelativeTimeFormat>());
if (maybe_found_style.FromJust()) {
DCHECK_NOT_NULL(style_str.get());
style_enum = getStyle(style_str.get());
}
// 15. Set relativeTimeFormat.[[Style]] to s.
relative_time_format_holder->set_style(style_enum);
// 16. Let numeric be ? GetOption(options, "numeric", "string",
// «"always", "auto"», "always").
std::unique_ptr<char[]> numeric_str = nullptr;
std::vector<const char*> numeric_values = {"always", "auto"};
Maybe<bool> maybe_found_numeric =
Intl::GetStringOption(isolate, options, "numeric", numeric_values,
"Intl.RelativeTimeFormat", &numeric_str);
Numeric numeric_enum = Numeric::ALWAYS;
MAYBE_RETURN(maybe_found_numeric, MaybeHandle<JSRelativeTimeFormat>());
if (maybe_found_numeric.FromJust()) {
DCHECK_NOT_NULL(numeric_str.get());
numeric_enum = getNumeric(numeric_str.get());
}
// 17. Set relativeTimeFormat.[[Numeric]] to numeric.
relative_time_format_holder->set_numeric(numeric_enum);
std::unique_ptr<char[]> locale_name = locale->ToCString();
icu::Locale icu_locale(locale_name.get());
UErrorCode status = U_ZERO_ERROR;
// 25. Let relativeTimeFormat.[[NumberFormat]] be
// ? Construct(%NumberFormat%, « nfLocale, nfOptions »).
icu::NumberFormat* number_format =
icu::NumberFormat::createInstance(icu_locale, UNUM_DECIMAL, status);
if (U_FAILURE(status) || number_format == nullptr) {
THROW_NEW_ERROR(
isolate,
NewRangeError(MessageTemplate::kRelativeDateTimeFormatterBadParameters),
JSRelativeTimeFormat);
}
// 23. Perform ! CreateDataPropertyOrThrow(nfOptions, "useGrouping", false).
number_format->setGroupingUsed(false);
// 24. Perform ! CreateDataPropertyOrThrow(nfOptions,
// "minimumIntegerDigits", 2).
// Ref: https://github.com/tc39/proposal-intl-relative-time/issues/80
number_format->setMinimumIntegerDigits(2);
// Change UDISPCTX_CAPITALIZATION_NONE to other values if
// ECMA402 later include option to change capitalization.
// Ref: https://github.com/tc39/proposal-intl-relative-time/issues/11
icu::RelativeDateTimeFormatter* icu_formatter =
new icu::RelativeDateTimeFormatter(icu_locale, number_format,
getIcuStyle(style_enum),
UDISPCTX_CAPITALIZATION_NONE, status);
if (U_FAILURE(status) || (icu_formatter == nullptr)) {
THROW_NEW_ERROR(
isolate,
NewRangeError(MessageTemplate::kRelativeDateTimeFormatterBadParameters),
JSRelativeTimeFormat);
}
Handle<Managed<icu::RelativeDateTimeFormatter>> managed_formatter =
Managed<icu::RelativeDateTimeFormatter>::FromRawPtr(isolate, 0,
icu_formatter);
// 30. Set relativeTimeFormat.[[InitializedRelativeTimeFormat]] to true.
relative_time_format_holder->set_formatter(*managed_formatter);
// 31. Return relativeTimeFormat.
return relative_time_format_holder;
}
Handle<JSObject> JSRelativeTimeFormat::ResolvedOptions(
Isolate* isolate, Handle<JSRelativeTimeFormat> format_holder) {
Factory* factory = isolate->factory();
Handle<JSObject> result = factory->NewJSObject(isolate->object_function());
Handle<String> locale(format_holder->locale(), isolate);
JSObject::AddProperty(isolate, result, factory->locale_string(), locale,
NONE);
JSObject::AddProperty(isolate, result, factory->style_string(),
format_holder->StyleAsString(), NONE);
JSObject::AddProperty(isolate, result, factory->numeric_string(),
format_holder->NumericAsString(), NONE);
return result;
}
icu::RelativeDateTimeFormatter* JSRelativeTimeFormat::UnpackFormatter(
Isolate* isolate, Handle<JSRelativeTimeFormat> holder) {
return Managed<icu::RelativeDateTimeFormatter>::cast(holder->formatter())
->raw();
}
Handle<String> JSRelativeTimeFormat::StyleAsString() const {
switch (style()) {
case Style::LONG:
return GetReadOnlyRoots().long_string_handle();
case Style::SHORT:
return GetReadOnlyRoots().short_string_handle();
case Style::NARROW:
return GetReadOnlyRoots().narrow_string_handle();
case Style::COUNT:
UNREACHABLE();
}
}
Handle<String> JSRelativeTimeFormat::NumericAsString() const {
switch (numeric()) {
case Numeric::ALWAYS:
return GetReadOnlyRoots().always_string_handle();
case Numeric::AUTO:
return GetReadOnlyRoots().auto_string_handle();
case Numeric::COUNT:
UNREACHABLE();
}
}
} // namespace internal
} // namespace v8
#include "src/objects/object-macros-undef.h"
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