| // 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. |
| |
| |
| #ifdef V8_I18N_SUPPORT |
| #include "src/runtime/runtime-utils.h" |
| |
| #include <memory> |
| |
| #include "src/api.h" |
| #include "src/api-natives.h" |
| #include "src/arguments.h" |
| #include "src/factory.h" |
| #include "src/i18n.h" |
| #include "src/isolate-inl.h" |
| #include "src/messages.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/normalizer2.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/uversion.h" |
| |
| |
| namespace v8 { |
| namespace internal { |
| namespace { |
| |
| const UChar* GetUCharBufferFromFlat(const String::FlatContent& flat, |
| std::unique_ptr<uc16[]>* dest, |
| int32_t length) { |
| DCHECK(flat.IsFlat()); |
| if (flat.IsOneByte()) { |
| if (!*dest) { |
| dest->reset(NewArray<uc16>(length)); |
| CopyChars(dest->get(), flat.ToOneByteVector().start(), length); |
| } |
| return reinterpret_cast<const UChar*>(dest->get()); |
| } else { |
| return reinterpret_cast<const UChar*>(flat.ToUC16Vector().start()); |
| } |
| } |
| |
| } // namespace |
| |
| // ECMA 402 6.2.3 |
| RUNTIME_FUNCTION(Runtime_CanonicalizeLanguageTag) { |
| HandleScope scope(isolate); |
| Factory* factory = isolate->factory(); |
| |
| DCHECK(args.length() == 1); |
| 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(args.length() == 1); |
| 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(args.length() == 0); |
| |
| 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(args.length() == 1); |
| |
| 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(args.length() == 1); |
| |
| 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(args.length() == 2); |
| |
| 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(args.length() == 3); |
| |
| CONVERT_ARG_HANDLE_CHECKED(JSObject, input, 0); |
| CONVERT_ARG_HANDLE_CHECKED(String, type, 1); |
| CONVERT_ARG_HANDLE_CHECKED(JSObject, impl, 2); |
| |
| Handle<Symbol> marker = isolate->factory()->intl_initialized_marker_symbol(); |
| JSObject::SetProperty(input, marker, type, STRICT).Assert(); |
| |
| marker = isolate->factory()->intl_impl_object_symbol(); |
| JSObject::SetProperty(input, marker, impl, STRICT).Assert(); |
| |
| return isolate->heap()->undefined_value(); |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_GetImplFromInitializedIntlObject) { |
| HandleScope scope(isolate); |
| |
| DCHECK(args.length() == 1); |
| |
| CONVERT_ARG_HANDLE_CHECKED(JSObject, input, 0); |
| |
| if (!input->IsJSObject()) { |
| THROW_NEW_ERROR_RETURN_FAILURE( |
| isolate, NewTypeError(MessageTemplate::kNotIntlObject, input)); |
| } |
| |
| Handle<JSObject> obj = Handle<JSObject>::cast(input); |
| |
| Handle<Symbol> marker = isolate->factory()->intl_impl_object_symbol(); |
| |
| Handle<Object> impl = JSReceiver::GetDataProperty(obj, marker); |
| if (!impl->IsJSObject()) { |
| THROW_NEW_ERROR_RETURN_FAILURE( |
| isolate, NewTypeError(MessageTemplate::kNotIntlObject, obj)); |
| } |
| return *impl; |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_CreateDateTimeFormat) { |
| HandleScope scope(isolate); |
| |
| DCHECK(args.length() == 3); |
| |
| CONVERT_ARG_HANDLE_CHECKED(String, locale, 0); |
| CONVERT_ARG_HANDLE_CHECKED(JSObject, options, 1); |
| CONVERT_ARG_HANDLE_CHECKED(JSObject, resolved, 2); |
| |
| Handle<ObjectTemplateInfo> date_format_template = I18N::GetTemplate(isolate); |
| |
| // Create an empty object wrapper. |
| Handle<JSObject> local_object; |
| ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| isolate, local_object, |
| ApiNatives::InstantiateObject(date_format_template)); |
| |
| // Set date time formatter as internal field of the resulting JS object. |
| icu::SimpleDateFormat* date_format = |
| DateFormat::InitializeDateTimeFormat(isolate, locale, options, resolved); |
| |
| if (!date_format) return isolate->ThrowIllegalOperation(); |
| |
| local_object->SetInternalField(0, reinterpret_cast<Smi*>(date_format)); |
| |
| Factory* factory = isolate->factory(); |
| Handle<String> key = factory->NewStringFromStaticChars("dateFormat"); |
| Handle<String> value = factory->NewStringFromStaticChars("valid"); |
| JSObject::AddProperty(local_object, key, value, NONE); |
| |
| // 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(args.length() == 2); |
| |
| 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); |
| if (!date_format) return isolate->ThrowIllegalOperation(); |
| |
| 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(args.length() == 2); |
| |
| 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); |
| if (!date_format) return isolate->ThrowIllegalOperation(); |
| |
| 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_InternalDateParse) { |
| HandleScope scope(isolate); |
| |
| DCHECK(args.length() == 2); |
| |
| CONVERT_ARG_HANDLE_CHECKED(JSObject, date_format_holder, 0); |
| CONVERT_ARG_HANDLE_CHECKED(String, date_string, 1); |
| |
| v8::String::Utf8Value utf8_date(v8::Utils::ToLocal(date_string)); |
| icu::UnicodeString u_date(icu::UnicodeString::fromUTF8(*utf8_date)); |
| icu::SimpleDateFormat* date_format = |
| DateFormat::UnpackDateFormat(isolate, date_format_holder); |
| if (!date_format) return isolate->ThrowIllegalOperation(); |
| |
| UErrorCode status = U_ZERO_ERROR; |
| UDate date = date_format->parse(u_date, status); |
| if (U_FAILURE(status)) return isolate->heap()->undefined_value(); |
| |
| RETURN_RESULT_OR_FAILURE( |
| isolate, JSDate::New(isolate->date_function(), isolate->date_function(), |
| static_cast<double>(date))); |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_CreateNumberFormat) { |
| HandleScope scope(isolate); |
| |
| DCHECK(args.length() == 3); |
| |
| CONVERT_ARG_HANDLE_CHECKED(String, locale, 0); |
| CONVERT_ARG_HANDLE_CHECKED(JSObject, options, 1); |
| CONVERT_ARG_HANDLE_CHECKED(JSObject, resolved, 2); |
| |
| Handle<ObjectTemplateInfo> number_format_template = |
| I18N::GetTemplate(isolate); |
| |
| // Create an empty object wrapper. |
| Handle<JSObject> local_object; |
| ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| isolate, local_object, |
| ApiNatives::InstantiateObject(number_format_template)); |
| |
| // Set number formatter as internal field of the resulting JS object. |
| icu::DecimalFormat* number_format = |
| NumberFormat::InitializeNumberFormat(isolate, locale, options, resolved); |
| |
| if (!number_format) return isolate->ThrowIllegalOperation(); |
| |
| local_object->SetInternalField(0, reinterpret_cast<Smi*>(number_format)); |
| |
| Factory* factory = isolate->factory(); |
| Handle<String> key = factory->NewStringFromStaticChars("numberFormat"); |
| Handle<String> value = factory->NewStringFromStaticChars("valid"); |
| JSObject::AddProperty(local_object, key, value, NONE); |
| |
| 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(args.length() == 2); |
| |
| 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); |
| if (!number_format) return isolate->ThrowIllegalOperation(); |
| |
| 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_InternalNumberParse) { |
| HandleScope scope(isolate); |
| |
| DCHECK(args.length() == 2); |
| |
| CONVERT_ARG_HANDLE_CHECKED(JSObject, number_format_holder, 0); |
| CONVERT_ARG_HANDLE_CHECKED(String, number_string, 1); |
| |
| isolate->CountUsage(v8::Isolate::UseCounterFeature::kIntlV8Parse); |
| |
| v8::String::Utf8Value utf8_number(v8::Utils::ToLocal(number_string)); |
| icu::UnicodeString u_number(icu::UnicodeString::fromUTF8(*utf8_number)); |
| icu::DecimalFormat* number_format = |
| NumberFormat::UnpackNumberFormat(isolate, number_format_holder); |
| if (!number_format) return isolate->ThrowIllegalOperation(); |
| |
| UErrorCode status = U_ZERO_ERROR; |
| icu::Formattable result; |
| // ICU 4.6 doesn't support parseCurrency call. We need to wait for ICU49 |
| // to be part of Chrome. |
| // TODO(cira): Include currency parsing code using parseCurrency call. |
| // We need to check if the formatter parses all currencies or only the |
| // one it was constructed with (it will impact the API - how to return ISO |
| // code and the value). |
| number_format->parse(u_number, result, status); |
| if (U_FAILURE(status)) return isolate->heap()->undefined_value(); |
| |
| switch (result.getType()) { |
| case icu::Formattable::kDouble: |
| return *isolate->factory()->NewNumber(result.getDouble()); |
| case icu::Formattable::kLong: |
| return *isolate->factory()->NewNumberFromInt(result.getLong()); |
| case icu::Formattable::kInt64: |
| return *isolate->factory()->NewNumber( |
| static_cast<double>(result.getInt64())); |
| default: |
| return isolate->heap()->undefined_value(); |
| } |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_CreateCollator) { |
| HandleScope scope(isolate); |
| |
| DCHECK(args.length() == 3); |
| |
| CONVERT_ARG_HANDLE_CHECKED(String, locale, 0); |
| CONVERT_ARG_HANDLE_CHECKED(JSObject, options, 1); |
| CONVERT_ARG_HANDLE_CHECKED(JSObject, resolved, 2); |
| |
| Handle<ObjectTemplateInfo> collator_template = I18N::GetTemplate(isolate); |
| |
| // Create an empty object wrapper. |
| Handle<JSObject> local_object; |
| ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| isolate, local_object, ApiNatives::InstantiateObject(collator_template)); |
| |
| // Set collator as internal field of the resulting JS object. |
| icu::Collator* collator = |
| Collator::InitializeCollator(isolate, locale, options, resolved); |
| |
| if (!collator) return isolate->ThrowIllegalOperation(); |
| |
| local_object->SetInternalField(0, reinterpret_cast<Smi*>(collator)); |
| |
| Factory* factory = isolate->factory(); |
| Handle<String> key = factory->NewStringFromStaticChars("collator"); |
| Handle<String> value = factory->NewStringFromStaticChars("valid"); |
| JSObject::AddProperty(local_object, key, value, NONE); |
| |
| 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(args.length() == 3); |
| |
| 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); |
| if (!collator) return isolate->ThrowIllegalOperation(); |
| |
| 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; |
| const UChar* string_val1 = GetUCharBufferFromFlat(flat1, &sap1, length1); |
| const UChar* string_val2 = GetUCharBufferFromFlat(flat2, &sap2, length2); |
| result = |
| collator->compare(string_val1, length1, string_val2, length2, status); |
| } |
| if (U_FAILURE(status)) return isolate->ThrowIllegalOperation(); |
| |
| return *isolate->factory()->NewNumberFromInt(result); |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_StringNormalize) { |
| HandleScope scope(isolate); |
| static const struct { |
| const char* name; |
| UNormalization2Mode mode; |
| } normalizationForms[] = { |
| {"nfc", UNORM2_COMPOSE}, |
| {"nfc", UNORM2_DECOMPOSE}, |
| {"nfkc", UNORM2_COMPOSE}, |
| {"nfkc", UNORM2_DECOMPOSE}, |
| }; |
| |
| DCHECK(args.length() == 2); |
| |
| CONVERT_ARG_HANDLE_CHECKED(String, s, 0); |
| CONVERT_NUMBER_CHECKED(int, form_id, Int32, args[1]); |
| CHECK(form_id >= 0 && |
| static_cast<size_t>(form_id) < arraysize(normalizationForms)); |
| |
| int length = s->length(); |
| s = String::Flatten(s); |
| icu::UnicodeString result; |
| std::unique_ptr<uc16[]> sap; |
| UErrorCode status = U_ZERO_ERROR; |
| { |
| DisallowHeapAllocation no_gc; |
| String::FlatContent flat = s->GetFlatContent(); |
| const UChar* src = GetUCharBufferFromFlat(flat, &sap, length); |
| icu::UnicodeString input(false, src, length); |
| // Getting a singleton. Should not free it. |
| const icu::Normalizer2* normalizer = |
| icu::Normalizer2::getInstance(nullptr, normalizationForms[form_id].name, |
| normalizationForms[form_id].mode, status); |
| DCHECK(U_SUCCESS(status)); |
| CHECK(normalizer != nullptr); |
| int32_t normalized_prefix_length = |
| normalizer->spanQuickCheckYes(input, status); |
| // Quick return if the input is already normalized. |
| if (length == normalized_prefix_length) return *s; |
| icu::UnicodeString unnormalized = |
| input.tempSubString(normalized_prefix_length); |
| // Read-only alias of the normalized prefix. |
| result.setTo(false, input.getBuffer(), normalized_prefix_length); |
| // copy-on-write; normalize the suffix and append to |result|. |
| normalizer->normalizeSecondAndAppend(result, unnormalized, status); |
| } |
| |
| if (U_FAILURE(status)) { |
| return isolate->heap()->undefined_value(); |
| } |
| |
| RETURN_RESULT_OR_FAILURE( |
| isolate, isolate->factory()->NewStringFromTwoByte(Vector<const uint16_t>( |
| reinterpret_cast<const uint16_t*>(result.getBuffer()), |
| result.length()))); |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_CreateBreakIterator) { |
| HandleScope scope(isolate); |
| |
| DCHECK(args.length() == 3); |
| |
| CONVERT_ARG_HANDLE_CHECKED(String, locale, 0); |
| CONVERT_ARG_HANDLE_CHECKED(JSObject, options, 1); |
| CONVERT_ARG_HANDLE_CHECKED(JSObject, resolved, 2); |
| |
| Handle<ObjectTemplateInfo> break_iterator_template = |
| I18N::GetTemplate2(isolate); |
| |
| // Create an empty object wrapper. |
| Handle<JSObject> local_object; |
| ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| isolate, local_object, |
| ApiNatives::InstantiateObject(break_iterator_template)); |
| |
| // Set break iterator as internal field of the resulting JS object. |
| icu::BreakIterator* break_iterator = BreakIterator::InitializeBreakIterator( |
| isolate, locale, options, resolved); |
| |
| if (!break_iterator) return isolate->ThrowIllegalOperation(); |
| |
| local_object->SetInternalField(0, reinterpret_cast<Smi*>(break_iterator)); |
| // Make sure that the pointer to adopted text is NULL. |
| local_object->SetInternalField(1, static_cast<Smi*>(nullptr)); |
| |
| Factory* factory = isolate->factory(); |
| Handle<String> key = factory->NewStringFromStaticChars("breakIterator"); |
| Handle<String> value = factory->NewStringFromStaticChars("valid"); |
| JSObject::AddProperty(local_object, key, value, NONE); |
| |
| // 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(), |
| BreakIterator::DeleteBreakIterator, |
| WeakCallbackType::kInternalFields); |
| return *local_object; |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_BreakIteratorAdoptText) { |
| HandleScope scope(isolate); |
| |
| DCHECK(args.length() == 2); |
| |
| CONVERT_ARG_HANDLE_CHECKED(JSObject, break_iterator_holder, 0); |
| CONVERT_ARG_HANDLE_CHECKED(String, text, 1); |
| |
| icu::BreakIterator* break_iterator = |
| BreakIterator::UnpackBreakIterator(isolate, break_iterator_holder); |
| if (!break_iterator) return isolate->ThrowIllegalOperation(); |
| |
| icu::UnicodeString* u_text = reinterpret_cast<icu::UnicodeString*>( |
| break_iterator_holder->GetInternalField(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->SetInternalField(1, reinterpret_cast<Smi*>(u_text)); |
| |
| break_iterator->setText(*u_text); |
| |
| return isolate->heap()->undefined_value(); |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_BreakIteratorFirst) { |
| HandleScope scope(isolate); |
| |
| DCHECK(args.length() == 1); |
| |
| CONVERT_ARG_HANDLE_CHECKED(JSObject, break_iterator_holder, 0); |
| |
| icu::BreakIterator* break_iterator = |
| BreakIterator::UnpackBreakIterator(isolate, break_iterator_holder); |
| if (!break_iterator) return isolate->ThrowIllegalOperation(); |
| |
| return *isolate->factory()->NewNumberFromInt(break_iterator->first()); |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_BreakIteratorNext) { |
| HandleScope scope(isolate); |
| |
| DCHECK(args.length() == 1); |
| |
| CONVERT_ARG_HANDLE_CHECKED(JSObject, break_iterator_holder, 0); |
| |
| icu::BreakIterator* break_iterator = |
| BreakIterator::UnpackBreakIterator(isolate, break_iterator_holder); |
| if (!break_iterator) return isolate->ThrowIllegalOperation(); |
| |
| return *isolate->factory()->NewNumberFromInt(break_iterator->next()); |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_BreakIteratorCurrent) { |
| HandleScope scope(isolate); |
| |
| DCHECK(args.length() == 1); |
| |
| CONVERT_ARG_HANDLE_CHECKED(JSObject, break_iterator_holder, 0); |
| |
| icu::BreakIterator* break_iterator = |
| BreakIterator::UnpackBreakIterator(isolate, break_iterator_holder); |
| if (!break_iterator) return isolate->ThrowIllegalOperation(); |
| |
| return *isolate->factory()->NewNumberFromInt(break_iterator->current()); |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_BreakIteratorBreakType) { |
| HandleScope scope(isolate); |
| |
| DCHECK(args.length() == 1); |
| |
| CONVERT_ARG_HANDLE_CHECKED(JSObject, break_iterator_holder, 0); |
| |
| icu::BreakIterator* break_iterator = |
| BreakIterator::UnpackBreakIterator(isolate, break_iterator_holder); |
| if (!break_iterator) return isolate->ThrowIllegalOperation(); |
| |
| // 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"); |
| } |
| } |
| |
| namespace { |
| MUST_USE_RESULT Object* LocaleConvertCase(Handle<String> s, Isolate* isolate, |
| bool is_to_upper, const char* lang) { |
| auto case_converter = is_to_upper ? u_strToUpper : u_strToLower; |
| int32_t src_length = s->length(); |
| int32_t dest_length = src_length; |
| UErrorCode status; |
| Handle<SeqTwoByteString> result; |
| std::unique_ptr<uc16[]> sap; |
| |
| // This is not a real loop. It'll be executed only once (no overflow) or |
| // twice (overflow). |
| for (int i = 0; i < 2; ++i) { |
| // Case conversion can increase the string length (e.g. sharp-S => SS) so |
| // that we have to handle RangeError exceptions here. |
| ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| isolate, result, isolate->factory()->NewRawTwoByteString(dest_length)); |
| DisallowHeapAllocation no_gc; |
| String::FlatContent flat = s->GetFlatContent(); |
| const UChar* src = GetUCharBufferFromFlat(flat, &sap, src_length); |
| status = U_ZERO_ERROR; |
| dest_length = case_converter(reinterpret_cast<UChar*>(result->GetChars()), |
| dest_length, src, src_length, lang, &status); |
| if (status != U_BUFFER_OVERFLOW_ERROR) break; |
| } |
| |
| // In most cases, the output will fill the destination buffer completely |
| // leading to an unterminated string (U_STRING_NOT_TERMINATED_WARNING). |
| // Only in rare cases, it'll be shorter than the destination buffer and |
| // |result| has to be truncated. |
| DCHECK(U_SUCCESS(status)); |
| if (V8_LIKELY(status == U_STRING_NOT_TERMINATED_WARNING)) { |
| DCHECK(dest_length == result->length()); |
| return *result; |
| } |
| if (U_SUCCESS(status)) { |
| DCHECK(dest_length < result->length()); |
| return *Handle<SeqTwoByteString>::cast( |
| SeqString::Truncate(result, dest_length)); |
| } |
| return *s; |
| } |
| |
| inline bool IsASCIIUpper(uint16_t ch) { return ch >= 'A' && ch <= 'Z'; } |
| |
| const uint8_t kToLower[256] = { |
| 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, |
| 0x0C, 0x0D, 0x0E, 0x0F, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, |
| 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20, 0x21, 0x22, 0x23, |
| 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F, |
| 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, |
| 0x3C, 0x3D, 0x3E, 0x3F, 0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, |
| 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70, 0x71, 0x72, 0x73, |
| 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x5B, 0x5C, 0x5D, 0x5E, 0x5F, |
| 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x6B, |
| 0x6C, 0x6D, 0x6E, 0x6F, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, |
| 0x78, 0x79, 0x7A, 0x7B, 0x7C, 0x7D, 0x7E, 0x7F, 0x80, 0x81, 0x82, 0x83, |
| 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F, |
| 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0x9B, |
| 0x9C, 0x9D, 0x9E, 0x9F, 0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, |
| 0xA8, 0xA9, 0xAA, 0xAB, 0xAC, 0xAD, 0xAE, 0xAF, 0xB0, 0xB1, 0xB2, 0xB3, |
| 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0xBB, 0xBC, 0xBD, 0xBE, 0xBF, |
| 0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xEB, |
| 0xEC, 0xED, 0xEE, 0xEF, 0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xD7, |
| 0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0xDF, 0xE0, 0xE1, 0xE2, 0xE3, |
| 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF, |
| 0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0xFA, 0xFB, |
| 0xFC, 0xFD, 0xFE, 0xFF, |
| }; |
| |
| inline uint16_t ToLatin1Lower(uint16_t ch) { |
| return static_cast<uint16_t>(kToLower[ch]); |
| } |
| |
| inline uint16_t ToASCIIUpper(uint16_t ch) { |
| return ch & ~((ch >= 'a' && ch <= 'z') << 5); |
| } |
| |
| // Does not work for U+00DF (sharp-s), U+00B5 (micron), U+00FF. |
| inline uint16_t ToLatin1Upper(uint16_t ch) { |
| DCHECK(ch != 0xDF && ch != 0xB5 && ch != 0xFF); |
| return ch & |
| ~(((ch >= 'a' && ch <= 'z') || (((ch & 0xE0) == 0xE0) && ch != 0xF7)) |
| << 5); |
| } |
| |
| template <typename Char> |
| bool ToUpperFastASCII(const Vector<const Char>& src, |
| Handle<SeqOneByteString> result) { |
| // Do a faster loop for the case where all the characters are ASCII. |
| uint16_t ored = 0; |
| int32_t index = 0; |
| for (auto it = src.begin(); it != src.end(); ++it) { |
| uint16_t ch = static_cast<uint16_t>(*it); |
| ored |= ch; |
| result->SeqOneByteStringSet(index++, ToASCIIUpper(ch)); |
| } |
| return !(ored & ~0x7F); |
| } |
| |
| const uint16_t sharp_s = 0xDF; |
| |
| template <typename Char> |
| bool ToUpperOneByte(const Vector<const Char>& src, |
| Handle<SeqOneByteString> result, int* sharp_s_count) { |
| // Still pretty-fast path for the input with non-ASCII Latin-1 characters. |
| |
| // There are two special cases. |
| // 1. U+00B5 and U+00FF are mapped to a character beyond U+00FF. |
| // 2. Lower case sharp-S converts to "SS" (two characters) |
| *sharp_s_count = 0; |
| int32_t index = 0; |
| for (auto it = src.begin(); it != src.end(); ++it) { |
| uint16_t ch = static_cast<uint16_t>(*it); |
| if (V8_UNLIKELY(ch == sharp_s)) { |
| ++(*sharp_s_count); |
| continue; |
| } |
| if (V8_UNLIKELY(ch == 0xB5 || ch == 0xFF)) { |
| // Since this upper-cased character does not fit in an 8-bit string, we |
| // need to take the 16-bit path. |
| return false; |
| } |
| result->SeqOneByteStringSet(index++, ToLatin1Upper(ch)); |
| } |
| |
| return true; |
| } |
| |
| template <typename Char> |
| void ToUpperWithSharpS(const Vector<const Char>& src, |
| Handle<SeqOneByteString> result) { |
| int32_t dest_index = 0; |
| for (auto it = src.begin(); it != src.end(); ++it) { |
| uint16_t ch = static_cast<uint16_t>(*it); |
| if (ch == sharp_s) { |
| result->SeqOneByteStringSet(dest_index++, 'S'); |
| result->SeqOneByteStringSet(dest_index++, 'S'); |
| } else { |
| result->SeqOneByteStringSet(dest_index++, ToLatin1Upper(ch)); |
| } |
| } |
| } |
| |
| } // namespace |
| |
| RUNTIME_FUNCTION(Runtime_StringToLowerCaseI18N) { |
| HandleScope scope(isolate); |
| DCHECK_EQ(args.length(), 1); |
| CONVERT_ARG_HANDLE_CHECKED(String, s, 0); |
| |
| int length = s->length(); |
| s = String::Flatten(s); |
| // First scan the string for uppercase and non-ASCII characters: |
| if (s->HasOnlyOneByteChars()) { |
| int first_index_to_lower = length; |
| for (int index = 0; index < length; ++index) { |
| // Blink specializes this path for one-byte strings, so it |
| // does not need to do a generic get, but can do the equivalent |
| // of SeqOneByteStringGet. |
| uint16_t ch = s->Get(index); |
| if (V8_UNLIKELY(IsASCIIUpper(ch) || ch & ~0x7F)) { |
| first_index_to_lower = index; |
| break; |
| } |
| } |
| |
| // Nothing to do if the string is all ASCII with no uppercase. |
| if (first_index_to_lower == length) return *s; |
| |
| // We depend here on the invariant that the length of a Latin1 |
| // string is invariant under ToLowerCase, and the result always |
| // fits in the Latin1 range in the *root locale*. It does not hold |
| // for ToUpperCase even in the root locale. |
| Handle<SeqOneByteString> result; |
| ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| isolate, result, isolate->factory()->NewRawOneByteString(length)); |
| |
| DisallowHeapAllocation no_gc; |
| String::FlatContent flat = s->GetFlatContent(); |
| if (flat.IsOneByte()) { |
| const uint8_t* src = flat.ToOneByteVector().start(); |
| CopyChars(result->GetChars(), src, |
| static_cast<size_t>(first_index_to_lower)); |
| for (int index = first_index_to_lower; index < length; ++index) { |
| uint16_t ch = static_cast<uint16_t>(src[index]); |
| result->SeqOneByteStringSet(index, ToLatin1Lower(ch)); |
| } |
| } else { |
| const uint16_t* src = flat.ToUC16Vector().start(); |
| CopyChars(result->GetChars(), src, |
| static_cast<size_t>(first_index_to_lower)); |
| for (int index = first_index_to_lower; index < length; ++index) { |
| uint16_t ch = src[index]; |
| result->SeqOneByteStringSet(index, ToLatin1Lower(ch)); |
| } |
| } |
| |
| return *result; |
| } |
| |
| // Blink had an additional case here for ASCII 2-byte strings, but |
| // that is subsumed by the above code (assuming there isn't a false |
| // negative for HasOnlyOneByteChars). |
| |
| // Do a slower implementation for cases that include non-ASCII characters. |
| return LocaleConvertCase(s, isolate, false, ""); |
| } |
| |
| RUNTIME_FUNCTION(Runtime_StringToUpperCaseI18N) { |
| HandleScope scope(isolate); |
| DCHECK_EQ(args.length(), 1); |
| CONVERT_ARG_HANDLE_CHECKED(String, s, 0); |
| |
| // This function could be optimized for no-op cases the way lowercase |
| // counterpart is, but in empirical testing, few actual calls to upper() |
| // are no-ops. So, it wouldn't be worth the extra time for pre-scanning. |
| |
| int32_t length = s->length(); |
| s = String::Flatten(s); |
| |
| if (s->HasOnlyOneByteChars()) { |
| Handle<SeqOneByteString> result; |
| ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| isolate, result, isolate->factory()->NewRawOneByteString(length)); |
| |
| int sharp_s_count; |
| bool is_result_single_byte; |
| { |
| DisallowHeapAllocation no_gc; |
| String::FlatContent flat = s->GetFlatContent(); |
| // If it was ok to slow down ASCII-only input slightly, ToUpperFastASCII |
| // could be removed because ToUpperOneByte is pretty fast now (it |
| // does not call ICU API any more.). |
| if (flat.IsOneByte()) { |
| Vector<const uint8_t> src = flat.ToOneByteVector(); |
| if (ToUpperFastASCII(src, result)) return *result; |
| is_result_single_byte = ToUpperOneByte(src, result, &sharp_s_count); |
| } else { |
| DCHECK(flat.IsTwoByte()); |
| Vector<const uint16_t> src = flat.ToUC16Vector(); |
| if (ToUpperFastASCII(src, result)) return *result; |
| is_result_single_byte = ToUpperOneByte(src, result, &sharp_s_count); |
| } |
| } |
| |
| // Go to the full Unicode path if there are characters whose uppercase |
| // is beyond the Latin-1 range (cannot be represented in OneByteString). |
| if (V8_UNLIKELY(!is_result_single_byte)) { |
| return LocaleConvertCase(s, isolate, true, ""); |
| } |
| |
| if (sharp_s_count == 0) return *result; |
| |
| // We have sharp_s_count sharp-s characters, but the result is still |
| // in the Latin-1 range. |
| ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| isolate, result, |
| isolate->factory()->NewRawOneByteString(length + sharp_s_count)); |
| DisallowHeapAllocation no_gc; |
| String::FlatContent flat = s->GetFlatContent(); |
| if (flat.IsOneByte()) { |
| ToUpperWithSharpS(flat.ToOneByteVector(), result); |
| } else { |
| ToUpperWithSharpS(flat.ToUC16Vector(), result); |
| } |
| |
| return *result; |
| } |
| |
| return LocaleConvertCase(s, isolate, true, ""); |
| } |
| |
| 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(SeqOneByteString, lang, 2); |
| |
| // All the languages requiring special handling ("az", "el", "lt", "tr") |
| // have a 2-letter language code. |
| DCHECK(lang->length() == 2); |
| uint8_t lang_str[3]; |
| memcpy(lang_str, lang->GetChars(), 2); |
| lang_str[2] = 0; |
| s = String::Flatten(s); |
| // 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, though. |
| return LocaleConvertCase(s, isolate, is_upper, |
| reinterpret_cast<const char*>(lang_str)); |
| } |
| |
| 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 |
| |
| #endif // V8_I18N_SUPPORT |