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Diffstat (limited to 'deps/v8/src/runtime/runtime-intl.cc')
| -rw-r--r-- | deps/v8/src/runtime/runtime-intl.cc | 839 |
1 files changed, 839 insertions, 0 deletions
diff --git a/deps/v8/src/runtime/runtime-intl.cc b/deps/v8/src/runtime/runtime-intl.cc new file mode 100644 index 0000000000..623fe05fe8 --- /dev/null +++ b/deps/v8/src/runtime/runtime-intl.cc @@ -0,0 +1,839 @@ +// Copyright 2014 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/runtime/runtime-utils.h" + +#include <memory> + +#include "src/api-natives.h" +#include "src/api.h" +#include "src/arguments.h" +#include "src/factory.h" +#include "src/intl.h" +#include "src/isolate-inl.h" +#include "src/messages.h" +#include "src/objects/intl-objects.h" +#include "src/utils.h" + +#include "unicode/brkiter.h" +#include "unicode/calendar.h" +#include "unicode/coll.h" +#include "unicode/curramt.h" +#include "unicode/datefmt.h" +#include "unicode/dcfmtsym.h" +#include "unicode/decimfmt.h" +#include "unicode/dtfmtsym.h" +#include "unicode/dtptngen.h" +#include "unicode/fieldpos.h" +#include "unicode/fpositer.h" +#include "unicode/locid.h" +#include "unicode/numfmt.h" +#include "unicode/numsys.h" +#include "unicode/rbbi.h" +#include "unicode/smpdtfmt.h" +#include "unicode/timezone.h" +#include "unicode/translit.h" +#include "unicode/uchar.h" +#include "unicode/ucol.h" +#include "unicode/ucurr.h" +#include "unicode/uloc.h" +#include "unicode/unistr.h" +#include "unicode/unum.h" +#include "unicode/uvernum.h" +#include "unicode/uversion.h" + +#if U_ICU_VERSION_MAJOR_NUM >= 59 +#include "unicode/char16ptr.h" +#endif + +namespace v8 { +namespace internal { + +// ECMA 402 6.2.3 +RUNTIME_FUNCTION(Runtime_CanonicalizeLanguageTag) { + HandleScope scope(isolate); + Factory* factory = isolate->factory(); + + DCHECK_EQ(1, args.length()); + CONVERT_ARG_HANDLE_CHECKED(String, locale_id_str, 0); + + v8::String::Utf8Value locale_id(v8::Utils::ToLocal(locale_id_str)); + + // Return value which denotes invalid language tag. + // TODO(jshin): Can uloc_{for,to}TanguageTag fail even for structually valid + // language tags? If not, just add CHECK instead of returning 'invalid-tag'. + const char* const kInvalidTag = "invalid-tag"; + + UErrorCode error = U_ZERO_ERROR; + char icu_result[ULOC_FULLNAME_CAPACITY]; + int icu_length = 0; + + uloc_forLanguageTag(*locale_id, icu_result, ULOC_FULLNAME_CAPACITY, + &icu_length, &error); + if (U_FAILURE(error) || icu_length == 0) { + return *factory->NewStringFromAsciiChecked(kInvalidTag); + } + + char result[ULOC_FULLNAME_CAPACITY]; + + // Force strict BCP47 rules. + uloc_toLanguageTag(icu_result, result, ULOC_FULLNAME_CAPACITY, TRUE, &error); + + if (U_FAILURE(error)) { + return *factory->NewStringFromAsciiChecked(kInvalidTag); + } + + return *factory->NewStringFromAsciiChecked(result); +} + +RUNTIME_FUNCTION(Runtime_AvailableLocalesOf) { + HandleScope scope(isolate); + Factory* factory = isolate->factory(); + + DCHECK_EQ(1, args.length()); + CONVERT_ARG_HANDLE_CHECKED(String, service, 0); + + const icu::Locale* available_locales = NULL; + int32_t count = 0; + + if (service->IsUtf8EqualTo(CStrVector("collator"))) { + available_locales = icu::Collator::getAvailableLocales(count); + } else if (service->IsUtf8EqualTo(CStrVector("numberformat"))) { + available_locales = icu::NumberFormat::getAvailableLocales(count); + } else if (service->IsUtf8EqualTo(CStrVector("dateformat"))) { + available_locales = icu::DateFormat::getAvailableLocales(count); + } else if (service->IsUtf8EqualTo(CStrVector("breakiterator"))) { + available_locales = icu::BreakIterator::getAvailableLocales(count); + } + + UErrorCode error = U_ZERO_ERROR; + char result[ULOC_FULLNAME_CAPACITY]; + Handle<JSObject> locales = factory->NewJSObject(isolate->object_function()); + + for (int32_t i = 0; i < count; ++i) { + const char* icu_name = available_locales[i].getName(); + + error = U_ZERO_ERROR; + // No need to force strict BCP47 rules. + uloc_toLanguageTag(icu_name, result, ULOC_FULLNAME_CAPACITY, FALSE, &error); + if (U_FAILURE(error)) { + // This shouldn't happen, but lets not break the user. + continue; + } + + RETURN_FAILURE_ON_EXCEPTION( + isolate, JSObject::SetOwnPropertyIgnoreAttributes( + locales, factory->NewStringFromAsciiChecked(result), + factory->NewNumber(i), NONE)); + } + + return *locales; +} + +RUNTIME_FUNCTION(Runtime_GetDefaultICULocale) { + HandleScope scope(isolate); + Factory* factory = isolate->factory(); + + DCHECK_EQ(0, args.length()); + + icu::Locale default_locale; + + // Set the locale + char result[ULOC_FULLNAME_CAPACITY]; + UErrorCode status = U_ZERO_ERROR; + uloc_toLanguageTag(default_locale.getName(), result, ULOC_FULLNAME_CAPACITY, + FALSE, &status); + if (U_SUCCESS(status)) { + return *factory->NewStringFromAsciiChecked(result); + } + + return *factory->NewStringFromStaticChars("und"); +} + +RUNTIME_FUNCTION(Runtime_GetLanguageTagVariants) { + HandleScope scope(isolate); + Factory* factory = isolate->factory(); + + DCHECK_EQ(1, args.length()); + + CONVERT_ARG_HANDLE_CHECKED(JSArray, input, 0); + + uint32_t length = static_cast<uint32_t>(input->length()->Number()); + // Set some limit to prevent fuzz tests from going OOM. + // Can be bumped when callers' requirements change. + if (length >= 100) return isolate->ThrowIllegalOperation(); + Handle<FixedArray> output = factory->NewFixedArray(length); + Handle<Name> maximized = factory->NewStringFromStaticChars("maximized"); + Handle<Name> base = factory->NewStringFromStaticChars("base"); + for (unsigned int i = 0; i < length; ++i) { + Handle<Object> locale_id; + ASSIGN_RETURN_FAILURE_ON_EXCEPTION( + isolate, locale_id, JSReceiver::GetElement(isolate, input, i)); + if (!locale_id->IsString()) { + return isolate->Throw(*factory->illegal_argument_string()); + } + + v8::String::Utf8Value utf8_locale_id( + v8::Utils::ToLocal(Handle<String>::cast(locale_id))); + + UErrorCode error = U_ZERO_ERROR; + + // Convert from BCP47 to ICU format. + // de-DE-u-co-phonebk -> de_DE@collation=phonebook + char icu_locale[ULOC_FULLNAME_CAPACITY]; + int icu_locale_length = 0; + uloc_forLanguageTag(*utf8_locale_id, icu_locale, ULOC_FULLNAME_CAPACITY, + &icu_locale_length, &error); + if (U_FAILURE(error) || icu_locale_length == 0) { + return isolate->Throw(*factory->illegal_argument_string()); + } + + // Maximize the locale. + // de_DE@collation=phonebook -> de_Latn_DE@collation=phonebook + char icu_max_locale[ULOC_FULLNAME_CAPACITY]; + uloc_addLikelySubtags(icu_locale, icu_max_locale, ULOC_FULLNAME_CAPACITY, + &error); + + // Remove extensions from maximized locale. + // de_Latn_DE@collation=phonebook -> de_Latn_DE + char icu_base_max_locale[ULOC_FULLNAME_CAPACITY]; + uloc_getBaseName(icu_max_locale, icu_base_max_locale, + ULOC_FULLNAME_CAPACITY, &error); + + // Get original name without extensions. + // de_DE@collation=phonebook -> de_DE + char icu_base_locale[ULOC_FULLNAME_CAPACITY]; + uloc_getBaseName(icu_locale, icu_base_locale, ULOC_FULLNAME_CAPACITY, + &error); + + // Convert from ICU locale format to BCP47 format. + // de_Latn_DE -> de-Latn-DE + char base_max_locale[ULOC_FULLNAME_CAPACITY]; + uloc_toLanguageTag(icu_base_max_locale, base_max_locale, + ULOC_FULLNAME_CAPACITY, FALSE, &error); + + // de_DE -> de-DE + char base_locale[ULOC_FULLNAME_CAPACITY]; + uloc_toLanguageTag(icu_base_locale, base_locale, ULOC_FULLNAME_CAPACITY, + FALSE, &error); + + if (U_FAILURE(error)) { + return isolate->Throw(*factory->illegal_argument_string()); + } + + Handle<JSObject> result = factory->NewJSObject(isolate->object_function()); + Handle<String> value = factory->NewStringFromAsciiChecked(base_max_locale); + JSObject::AddProperty(result, maximized, value, NONE); + value = factory->NewStringFromAsciiChecked(base_locale); + JSObject::AddProperty(result, base, value, NONE); + output->set(i, *result); + } + + Handle<JSArray> result = factory->NewJSArrayWithElements(output); + result->set_length(Smi::FromInt(length)); + return *result; +} + +RUNTIME_FUNCTION(Runtime_IsInitializedIntlObject) { + HandleScope scope(isolate); + + DCHECK_EQ(1, args.length()); + + CONVERT_ARG_HANDLE_CHECKED(Object, input, 0); + + if (!input->IsJSObject()) return isolate->heap()->false_value(); + Handle<JSObject> obj = Handle<JSObject>::cast(input); + + Handle<Symbol> marker = isolate->factory()->intl_initialized_marker_symbol(); + Handle<Object> tag = JSReceiver::GetDataProperty(obj, marker); + return isolate->heap()->ToBoolean(!tag->IsUndefined(isolate)); +} + +RUNTIME_FUNCTION(Runtime_IsInitializedIntlObjectOfType) { + HandleScope scope(isolate); + + DCHECK_EQ(2, args.length()); + + CONVERT_ARG_HANDLE_CHECKED(Object, input, 0); + CONVERT_ARG_HANDLE_CHECKED(String, expected_type, 1); + + if (!input->IsJSObject()) return isolate->heap()->false_value(); + Handle<JSObject> obj = Handle<JSObject>::cast(input); + + Handle<Symbol> marker = isolate->factory()->intl_initialized_marker_symbol(); + Handle<Object> tag = JSReceiver::GetDataProperty(obj, marker); + return isolate->heap()->ToBoolean(tag->IsString() && + String::cast(*tag)->Equals(*expected_type)); +} + +RUNTIME_FUNCTION(Runtime_MarkAsInitializedIntlObjectOfType) { + HandleScope scope(isolate); + + DCHECK_EQ(2, args.length()); + + CONVERT_ARG_HANDLE_CHECKED(JSObject, input, 0); + CONVERT_ARG_HANDLE_CHECKED(String, type, 1); + + Handle<Symbol> marker = isolate->factory()->intl_initialized_marker_symbol(); + JSObject::SetProperty(input, marker, type, STRICT).Assert(); + + return isolate->heap()->undefined_value(); +} + +RUNTIME_FUNCTION(Runtime_CreateDateTimeFormat) { + HandleScope scope(isolate); + + DCHECK_EQ(3, args.length()); + + CONVERT_ARG_HANDLE_CHECKED(String, locale, 0); + CONVERT_ARG_HANDLE_CHECKED(JSObject, options, 1); + CONVERT_ARG_HANDLE_CHECKED(JSObject, resolved, 2); + + Handle<JSFunction> constructor( + isolate->native_context()->intl_date_time_format_function()); + + Handle<JSObject> local_object; + ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, local_object, + JSObject::New(constructor, constructor)); + + // Set date time formatter as embedder field of the resulting JS object. + icu::SimpleDateFormat* date_format = + DateFormat::InitializeDateTimeFormat(isolate, locale, options, resolved); + + if (!date_format) return isolate->ThrowIllegalOperation(); + + local_object->SetEmbedderField(0, reinterpret_cast<Smi*>(date_format)); + + // Make object handle weak so we can delete the data format once GC kicks in. + Handle<Object> wrapper = isolate->global_handles()->Create(*local_object); + GlobalHandles::MakeWeak(wrapper.location(), wrapper.location(), + DateFormat::DeleteDateFormat, + WeakCallbackType::kInternalFields); + return *local_object; +} + +RUNTIME_FUNCTION(Runtime_InternalDateFormat) { + HandleScope scope(isolate); + + DCHECK_EQ(2, args.length()); + + CONVERT_ARG_HANDLE_CHECKED(JSObject, date_format_holder, 0); + CONVERT_ARG_HANDLE_CHECKED(JSDate, date, 1); + + Handle<Object> value; + ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, value, Object::ToNumber(date)); + + icu::SimpleDateFormat* date_format = + DateFormat::UnpackDateFormat(isolate, date_format_holder); + CHECK_NOT_NULL(date_format); + + icu::UnicodeString result; + date_format->format(value->Number(), result); + + RETURN_RESULT_OR_FAILURE( + isolate, isolate->factory()->NewStringFromTwoByte(Vector<const uint16_t>( + reinterpret_cast<const uint16_t*>(result.getBuffer()), + result.length()))); +} + +namespace { +// The list comes from third_party/icu/source/i18n/unicode/udat.h. +// They're mapped to DateTimeFormat components listed at +// https://tc39.github.io/ecma402/#sec-datetimeformat-abstracts . + +Handle<String> IcuDateFieldIdToDateType(int32_t field_id, Isolate* isolate) { + switch (field_id) { + case -1: + return isolate->factory()->literal_string(); + case UDAT_YEAR_FIELD: + case UDAT_EXTENDED_YEAR_FIELD: + case UDAT_YEAR_NAME_FIELD: + return isolate->factory()->year_string(); + case UDAT_MONTH_FIELD: + case UDAT_STANDALONE_MONTH_FIELD: + return isolate->factory()->month_string(); + case UDAT_DATE_FIELD: + return isolate->factory()->day_string(); + case UDAT_HOUR_OF_DAY1_FIELD: + case UDAT_HOUR_OF_DAY0_FIELD: + case UDAT_HOUR1_FIELD: + case UDAT_HOUR0_FIELD: + return isolate->factory()->hour_string(); + case UDAT_MINUTE_FIELD: + return isolate->factory()->minute_string(); + case UDAT_SECOND_FIELD: + return isolate->factory()->second_string(); + case UDAT_DAY_OF_WEEK_FIELD: + case UDAT_DOW_LOCAL_FIELD: + case UDAT_STANDALONE_DAY_FIELD: + return isolate->factory()->weekday_string(); + case UDAT_AM_PM_FIELD: + return isolate->factory()->dayperiod_string(); + case UDAT_TIMEZONE_FIELD: + case UDAT_TIMEZONE_RFC_FIELD: + case UDAT_TIMEZONE_GENERIC_FIELD: + case UDAT_TIMEZONE_SPECIAL_FIELD: + case UDAT_TIMEZONE_LOCALIZED_GMT_OFFSET_FIELD: + case UDAT_TIMEZONE_ISO_FIELD: + case UDAT_TIMEZONE_ISO_LOCAL_FIELD: + return isolate->factory()->timeZoneName_string(); + case UDAT_ERA_FIELD: + return isolate->factory()->era_string(); + default: + // Other UDAT_*_FIELD's cannot show up because there is no way to specify + // them via options of Intl.DateTimeFormat. + UNREACHABLE(); + // To prevent MSVC from issuing C4715 warning. + return Handle<String>(); + } +} + +bool AddElement(Handle<JSArray> array, int index, int32_t field_id, + const icu::UnicodeString& formatted, int32_t begin, int32_t end, + Isolate* isolate) { + HandleScope scope(isolate); + Factory* factory = isolate->factory(); + Handle<JSObject> element = factory->NewJSObject(isolate->object_function()); + Handle<String> value = IcuDateFieldIdToDateType(field_id, isolate); + JSObject::AddProperty(element, factory->type_string(), value, NONE); + + icu::UnicodeString field(formatted.tempSubStringBetween(begin, end)); + ASSIGN_RETURN_ON_EXCEPTION_VALUE( + isolate, value, + factory->NewStringFromTwoByte(Vector<const uint16_t>( + reinterpret_cast<const uint16_t*>(field.getBuffer()), + field.length())), + false); + + JSObject::AddProperty(element, factory->value_string(), value, NONE); + RETURN_ON_EXCEPTION_VALUE( + isolate, JSObject::AddDataElement(array, index, element, NONE), false); + return true; +} + +} // namespace + +RUNTIME_FUNCTION(Runtime_InternalDateFormatToParts) { + HandleScope scope(isolate); + Factory* factory = isolate->factory(); + + DCHECK_EQ(2, args.length()); + + CONVERT_ARG_HANDLE_CHECKED(JSObject, date_format_holder, 0); + CONVERT_ARG_HANDLE_CHECKED(JSDate, date, 1); + + Handle<Object> value; + ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, value, Object::ToNumber(date)); + + icu::SimpleDateFormat* date_format = + DateFormat::UnpackDateFormat(isolate, date_format_holder); + CHECK_NOT_NULL(date_format); + + icu::UnicodeString formatted; + icu::FieldPositionIterator fp_iter; + icu::FieldPosition fp; + UErrorCode status = U_ZERO_ERROR; + date_format->format(value->Number(), formatted, &fp_iter, status); + if (U_FAILURE(status)) return isolate->heap()->undefined_value(); + + Handle<JSArray> result = factory->NewJSArray(0); + int32_t length = formatted.length(); + if (length == 0) return *result; + + int index = 0; + int32_t previous_end_pos = 0; + while (fp_iter.next(fp)) { + int32_t begin_pos = fp.getBeginIndex(); + int32_t end_pos = fp.getEndIndex(); + + if (previous_end_pos < begin_pos) { + if (!AddElement(result, index, -1, formatted, previous_end_pos, begin_pos, + isolate)) { + return isolate->heap()->undefined_value(); + } + ++index; + } + if (!AddElement(result, index, fp.getField(), formatted, begin_pos, end_pos, + isolate)) { + return isolate->heap()->undefined_value(); + } + previous_end_pos = end_pos; + ++index; + } + if (previous_end_pos < length) { + if (!AddElement(result, index, -1, formatted, previous_end_pos, length, + isolate)) { + return isolate->heap()->undefined_value(); + } + } + JSObject::ValidateElements(result); + return *result; +} + +RUNTIME_FUNCTION(Runtime_CreateNumberFormat) { + HandleScope scope(isolate); + + DCHECK_EQ(3, args.length()); + + CONVERT_ARG_HANDLE_CHECKED(String, locale, 0); + CONVERT_ARG_HANDLE_CHECKED(JSObject, options, 1); + CONVERT_ARG_HANDLE_CHECKED(JSObject, resolved, 2); + + Handle<JSFunction> constructor( + isolate->native_context()->intl_number_format_function()); + + Handle<JSObject> local_object; + ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, local_object, + JSObject::New(constructor, constructor)); + + // Set number formatter as embedder field of the resulting JS object. + icu::DecimalFormat* number_format = + NumberFormat::InitializeNumberFormat(isolate, locale, options, resolved); + + if (!number_format) return isolate->ThrowIllegalOperation(); + + local_object->SetEmbedderField(0, reinterpret_cast<Smi*>(number_format)); + + Handle<Object> wrapper = isolate->global_handles()->Create(*local_object); + GlobalHandles::MakeWeak(wrapper.location(), wrapper.location(), + NumberFormat::DeleteNumberFormat, + WeakCallbackType::kInternalFields); + return *local_object; +} + +RUNTIME_FUNCTION(Runtime_InternalNumberFormat) { + HandleScope scope(isolate); + + DCHECK_EQ(2, args.length()); + + CONVERT_ARG_HANDLE_CHECKED(JSObject, number_format_holder, 0); + CONVERT_ARG_HANDLE_CHECKED(Object, number, 1); + + Handle<Object> value; + ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, value, Object::ToNumber(number)); + + icu::DecimalFormat* number_format = + NumberFormat::UnpackNumberFormat(isolate, number_format_holder); + CHECK_NOT_NULL(number_format); + + icu::UnicodeString result; + number_format->format(value->Number(), result); + + RETURN_RESULT_OR_FAILURE( + isolate, isolate->factory()->NewStringFromTwoByte(Vector<const uint16_t>( + reinterpret_cast<const uint16_t*>(result.getBuffer()), + result.length()))); +} + +RUNTIME_FUNCTION(Runtime_CurrencyDigits) { + DCHECK_EQ(1, args.length()); + + CONVERT_ARG_HANDLE_CHECKED(String, currency, 0); + + // TODO(littledan): Avoid transcoding the string twice + v8::String::Utf8Value currency_string(v8::Utils::ToLocal(currency)); + icu::UnicodeString currency_icu = + icu::UnicodeString::fromUTF8(*currency_string); + + DisallowHeapAllocation no_gc; + UErrorCode status = U_ZERO_ERROR; +#if U_ICU_VERSION_MAJOR_NUM >= 59 + uint32_t fraction_digits = ucurr_getDefaultFractionDigits( + icu::toUCharPtr(currency_icu.getTerminatedBuffer()), &status); +#else + uint32_t fraction_digits = ucurr_getDefaultFractionDigits( + currency_icu.getTerminatedBuffer(), &status); +#endif + // For missing currency codes, default to the most common, 2 + if (!U_SUCCESS(status)) fraction_digits = 2; + return Smi::FromInt(fraction_digits); +} + +RUNTIME_FUNCTION(Runtime_CreateCollator) { + HandleScope scope(isolate); + + DCHECK_EQ(3, args.length()); + + CONVERT_ARG_HANDLE_CHECKED(String, locale, 0); + CONVERT_ARG_HANDLE_CHECKED(JSObject, options, 1); + CONVERT_ARG_HANDLE_CHECKED(JSObject, resolved, 2); + + Handle<JSFunction> constructor( + isolate->native_context()->intl_collator_function()); + + Handle<JSObject> local_object; + ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, local_object, + JSObject::New(constructor, constructor)); + + // Set collator as embedder field of the resulting JS object. + icu::Collator* collator = + Collator::InitializeCollator(isolate, locale, options, resolved); + + if (!collator) return isolate->ThrowIllegalOperation(); + + local_object->SetEmbedderField(0, reinterpret_cast<Smi*>(collator)); + + Handle<Object> wrapper = isolate->global_handles()->Create(*local_object); + GlobalHandles::MakeWeak(wrapper.location(), wrapper.location(), + Collator::DeleteCollator, + WeakCallbackType::kInternalFields); + return *local_object; +} + +RUNTIME_FUNCTION(Runtime_InternalCompare) { + HandleScope scope(isolate); + + DCHECK_EQ(3, args.length()); + + CONVERT_ARG_HANDLE_CHECKED(JSObject, collator_holder, 0); + CONVERT_ARG_HANDLE_CHECKED(String, string1, 1); + CONVERT_ARG_HANDLE_CHECKED(String, string2, 2); + + icu::Collator* collator = Collator::UnpackCollator(isolate, collator_holder); + CHECK_NOT_NULL(collator); + + string1 = String::Flatten(string1); + string2 = String::Flatten(string2); + + UCollationResult result; + UErrorCode status = U_ZERO_ERROR; + { + DisallowHeapAllocation no_gc; + int32_t length1 = string1->length(); + int32_t length2 = string2->length(); + String::FlatContent flat1 = string1->GetFlatContent(); + String::FlatContent flat2 = string2->GetFlatContent(); + std::unique_ptr<uc16[]> sap1; + std::unique_ptr<uc16[]> sap2; + icu::UnicodeString string_val1( + FALSE, GetUCharBufferFromFlat(flat1, &sap1, length1), length1); + icu::UnicodeString string_val2( + FALSE, GetUCharBufferFromFlat(flat2, &sap2, length2), length2); + result = collator->compare(string_val1, string_val2, status); + } + if (U_FAILURE(status)) return isolate->ThrowIllegalOperation(); + + return *isolate->factory()->NewNumberFromInt(result); +} + +RUNTIME_FUNCTION(Runtime_CreateBreakIterator) { + HandleScope scope(isolate); + + DCHECK_EQ(3, args.length()); + + CONVERT_ARG_HANDLE_CHECKED(String, locale, 0); + CONVERT_ARG_HANDLE_CHECKED(JSObject, options, 1); + CONVERT_ARG_HANDLE_CHECKED(JSObject, resolved, 2); + + Handle<JSFunction> constructor( + isolate->native_context()->intl_v8_break_iterator_function()); + + Handle<JSObject> local_object; + ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, local_object, + JSObject::New(constructor, constructor)); + + // Set break iterator as embedder field of the resulting JS object. + icu::BreakIterator* break_iterator = V8BreakIterator::InitializeBreakIterator( + isolate, locale, options, resolved); + + if (!break_iterator) return isolate->ThrowIllegalOperation(); + + local_object->SetEmbedderField(0, reinterpret_cast<Smi*>(break_iterator)); + // Make sure that the pointer to adopted text is NULL. + local_object->SetEmbedderField(1, static_cast<Smi*>(nullptr)); + + // Make object handle weak so we can delete the break iterator once GC kicks + // in. + Handle<Object> wrapper = isolate->global_handles()->Create(*local_object); + GlobalHandles::MakeWeak(wrapper.location(), wrapper.location(), + V8BreakIterator::DeleteBreakIterator, + WeakCallbackType::kInternalFields); + return *local_object; +} + +RUNTIME_FUNCTION(Runtime_BreakIteratorAdoptText) { + HandleScope scope(isolate); + + DCHECK_EQ(2, args.length()); + + CONVERT_ARG_HANDLE_CHECKED(JSObject, break_iterator_holder, 0); + CONVERT_ARG_HANDLE_CHECKED(String, text, 1); + + icu::BreakIterator* break_iterator = + V8BreakIterator::UnpackBreakIterator(isolate, break_iterator_holder); + CHECK_NOT_NULL(break_iterator); + + icu::UnicodeString* u_text = reinterpret_cast<icu::UnicodeString*>( + break_iterator_holder->GetEmbedderField(1)); + delete u_text; + + int length = text->length(); + text = String::Flatten(text); + DisallowHeapAllocation no_gc; + String::FlatContent flat = text->GetFlatContent(); + std::unique_ptr<uc16[]> sap; + const UChar* text_value = GetUCharBufferFromFlat(flat, &sap, length); + u_text = new icu::UnicodeString(text_value, length); + break_iterator_holder->SetEmbedderField(1, reinterpret_cast<Smi*>(u_text)); + + break_iterator->setText(*u_text); + + return isolate->heap()->undefined_value(); +} + +RUNTIME_FUNCTION(Runtime_BreakIteratorFirst) { + HandleScope scope(isolate); + + DCHECK_EQ(1, args.length()); + + CONVERT_ARG_HANDLE_CHECKED(JSObject, break_iterator_holder, 0); + + icu::BreakIterator* break_iterator = + V8BreakIterator::UnpackBreakIterator(isolate, break_iterator_holder); + CHECK_NOT_NULL(break_iterator); + + return *isolate->factory()->NewNumberFromInt(break_iterator->first()); +} + +RUNTIME_FUNCTION(Runtime_BreakIteratorNext) { + HandleScope scope(isolate); + + DCHECK_EQ(1, args.length()); + + CONVERT_ARG_HANDLE_CHECKED(JSObject, break_iterator_holder, 0); + + icu::BreakIterator* break_iterator = + V8BreakIterator::UnpackBreakIterator(isolate, break_iterator_holder); + CHECK_NOT_NULL(break_iterator); + + return *isolate->factory()->NewNumberFromInt(break_iterator->next()); +} + +RUNTIME_FUNCTION(Runtime_BreakIteratorCurrent) { + HandleScope scope(isolate); + + DCHECK_EQ(1, args.length()); + + CONVERT_ARG_HANDLE_CHECKED(JSObject, break_iterator_holder, 0); + + icu::BreakIterator* break_iterator = + V8BreakIterator::UnpackBreakIterator(isolate, break_iterator_holder); + CHECK_NOT_NULL(break_iterator); + + return *isolate->factory()->NewNumberFromInt(break_iterator->current()); +} + +RUNTIME_FUNCTION(Runtime_BreakIteratorBreakType) { + HandleScope scope(isolate); + + DCHECK_EQ(1, args.length()); + + CONVERT_ARG_HANDLE_CHECKED(JSObject, break_iterator_holder, 0); + + icu::BreakIterator* break_iterator = + V8BreakIterator::UnpackBreakIterator(isolate, break_iterator_holder); + CHECK_NOT_NULL(break_iterator); + + // TODO(cira): Remove cast once ICU fixes base BreakIterator class. + icu::RuleBasedBreakIterator* rule_based_iterator = + static_cast<icu::RuleBasedBreakIterator*>(break_iterator); + int32_t status = rule_based_iterator->getRuleStatus(); + // Keep return values in sync with JavaScript BreakType enum. + if (status >= UBRK_WORD_NONE && status < UBRK_WORD_NONE_LIMIT) { + return *isolate->factory()->NewStringFromStaticChars("none"); + } else if (status >= UBRK_WORD_NUMBER && status < UBRK_WORD_NUMBER_LIMIT) { + return isolate->heap()->number_string(); + } else if (status >= UBRK_WORD_LETTER && status < UBRK_WORD_LETTER_LIMIT) { + return *isolate->factory()->NewStringFromStaticChars("letter"); + } else if (status >= UBRK_WORD_KANA && status < UBRK_WORD_KANA_LIMIT) { + return *isolate->factory()->NewStringFromStaticChars("kana"); + } else if (status >= UBRK_WORD_IDEO && status < UBRK_WORD_IDEO_LIMIT) { + return *isolate->factory()->NewStringFromStaticChars("ideo"); + } else { + return *isolate->factory()->NewStringFromStaticChars("unknown"); + } +} + +RUNTIME_FUNCTION(Runtime_StringToLowerCaseIntl) { + HandleScope scope(isolate); + DCHECK_EQ(args.length(), 1); + CONVERT_ARG_HANDLE_CHECKED(String, s, 0); + s = String::Flatten(s); + return ConvertToLower(s, isolate); +} + +RUNTIME_FUNCTION(Runtime_StringToUpperCaseIntl) { + HandleScope scope(isolate); + DCHECK_EQ(args.length(), 1); + CONVERT_ARG_HANDLE_CHECKED(String, s, 0); + s = String::Flatten(s); + return ConvertToUpper(s, isolate); +} + +RUNTIME_FUNCTION(Runtime_StringLocaleConvertCase) { + HandleScope scope(isolate); + DCHECK_EQ(args.length(), 3); + CONVERT_ARG_HANDLE_CHECKED(String, s, 0); + CONVERT_BOOLEAN_ARG_CHECKED(is_upper, 1); + CONVERT_ARG_HANDLE_CHECKED(String, lang_arg, 2); + + // Primary language tag can be up to 8 characters long in theory. + // https://tools.ietf.org/html/bcp47#section-2.2.1 + DCHECK(lang_arg->length() <= 8); + lang_arg = String::Flatten(lang_arg); + s = String::Flatten(s); + + // All the languages requiring special-handling have two-letter codes. + // Note that we have to check for '!= 2' here because private-use language + // tags (x-foo) or grandfathered irregular tags (e.g. i-enochian) would have + // only 'x' or 'i' when they get here. + if (V8_UNLIKELY(lang_arg->length() != 2)) + return ConvertCase(s, is_upper, isolate); + + char c1, c2; + { + DisallowHeapAllocation no_gc; + String::FlatContent lang = lang_arg->GetFlatContent(); + c1 = lang.Get(0); + c2 = lang.Get(1); + } + // TODO(jshin): Consider adding a fast path for ASCII or Latin-1. The fastpath + // in the root locale needs to be adjusted for az, lt and tr because even case + // mapping of ASCII range characters are different in those locales. + // Greek (el) does not require any adjustment. + if (V8_UNLIKELY(c1 == 't' && c2 == 'r')) + return LocaleConvertCase(s, isolate, is_upper, "tr"); + if (V8_UNLIKELY(c1 == 'e' && c2 == 'l')) + return LocaleConvertCase(s, isolate, is_upper, "el"); + if (V8_UNLIKELY(c1 == 'l' && c2 == 't')) + return LocaleConvertCase(s, isolate, is_upper, "lt"); + if (V8_UNLIKELY(c1 == 'a' && c2 == 'z')) + return LocaleConvertCase(s, isolate, is_upper, "az"); + + return ConvertCase(s, is_upper, isolate); +} + +RUNTIME_FUNCTION(Runtime_DateCacheVersion) { + HandleScope scope(isolate); + DCHECK_EQ(0, args.length()); + if (isolate->serializer_enabled()) return isolate->heap()->undefined_value(); + if (!isolate->eternal_handles()->Exists(EternalHandles::DATE_CACHE_VERSION)) { + Handle<FixedArray> date_cache_version = + isolate->factory()->NewFixedArray(1, TENURED); + date_cache_version->set(0, Smi::kZero); + isolate->eternal_handles()->CreateSingleton( + isolate, *date_cache_version, EternalHandles::DATE_CACHE_VERSION); + } + Handle<FixedArray> date_cache_version = + Handle<FixedArray>::cast(isolate->eternal_handles()->GetSingleton( + EternalHandles::DATE_CACHE_VERSION)); + return date_cache_version->get(0); +} + +} // namespace internal +} // namespace v8 |