// 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_NUMBER_FORMAT_H_ #define V8_OBJECTS_JS_NUMBER_FORMAT_H_ #include <set> #include <string> #include "src/heap/factory.h" #include "src/isolate.h" #include "src/objects.h" #include "src/objects/intl-objects.h" #include "src/objects/managed.h" #include "unicode/numberformatter.h" // Has to be the last include (doesn't have include guards): #include "src/objects/object-macros.h" namespace U_ICU_NAMESPACE { class NumberFormat; class UnicodeString; } // namespace U_ICU_NAMESPACE namespace v8 { namespace internal { class JSNumberFormat : public JSObject { public: // ecma402/#sec-initializenumberformat V8_WARN_UNUSED_RESULT static MaybeHandle<JSNumberFormat> Initialize( Isolate* isolate, Handle<JSNumberFormat> number_format, Handle<Object> locales, Handle<Object> options); // ecma402/#sec-unwrapnumberformat V8_WARN_UNUSED_RESULT static MaybeHandle<JSNumberFormat> UnwrapNumberFormat( Isolate* isolate, Handle<JSReceiver> format_holder); // ecma402/#sec-intl.numberformat.prototype.resolvedoptions static Handle<JSObject> ResolvedOptions(Isolate* isolate, Handle<JSNumberFormat> number_format); V8_WARN_UNUSED_RESULT static MaybeHandle<JSArray> FormatToParts( Isolate* isolate, Handle<JSNumberFormat> number_format, Handle<Object> numeric_obj); V8_WARN_UNUSED_RESULT static MaybeHandle<String> FormatNumeric( Isolate* isolate, const icu::number::LocalizedNumberFormatter& number_format, Handle<Object> numeric_obj); V8_EXPORT_PRIVATE static const std::set<std::string>& GetAvailableLocales(); DECL_CAST(JSNumberFormat) DECL_PRINTER(JSNumberFormat) DECL_VERIFIER(JSNumberFormat) // Current ECMA 402 spec mandates to record (Min|Max)imumFractionDigits // unconditionally while the unified number proposal eventually will only // record either (Min|Max)imumFractionDigits or (Min|Max)imumSignaficantDigits // Since LocalizedNumberFormatter can only remember one set, and during // 2019-1-17 ECMA402 meeting that the committee decide not to take a PR to // address that prior to the unified number proposal, we have to add these two // 5 bits int into flags to remember the (Min|Max)imumFractionDigits while // (Min|Max)imumSignaficantDigits is present. // TODO(ftang) remove the following once we ship int-number-format-unified // * Four inline functions: (set_)?(min|max)imum_fraction_digits // * kFlagsOffset // * #define FLAGS_BIT_FIELDS // * DECL_INT_ACCESSORS(flags) inline int minimum_fraction_digits() const; inline void set_minimum_fraction_digits(int digits); inline int maximum_fraction_digits() const; inline void set_maximum_fraction_digits(int digits); // Layout description. DEFINE_FIELD_OFFSET_CONSTANTS(JSObject::kHeaderSize, TORQUE_GENERATED_JSNUMBER_FORMAT_FIELDS) // Bit positions in |flags|. #define FLAGS_BIT_FIELDS(V, _) \ V(MinimumFractionDigitsBits, int, 5, _) \ V(MaximumFractionDigitsBits, int, 5, _) DEFINE_BIT_FIELDS(FLAGS_BIT_FIELDS) #undef FLAGS_BIT_FIELDS STATIC_ASSERT(20 <= MinimumFractionDigitsBits::kMax); STATIC_ASSERT(20 <= MaximumFractionDigitsBits::kMax); DECL_ACCESSORS(locale, String) DECL_ACCESSORS(icu_number_formatter, Managed<icu::number::LocalizedNumberFormatter>) DECL_ACCESSORS(bound_format, Object) DECL_INT_ACCESSORS(flags) OBJECT_CONSTRUCTORS(JSNumberFormat, JSObject); }; struct NumberFormatSpan { int32_t field_id; int32_t begin_pos; int32_t end_pos; NumberFormatSpan() = default; NumberFormatSpan(int32_t field_id, int32_t begin_pos, int32_t end_pos) : field_id(field_id), begin_pos(begin_pos), end_pos(end_pos) {} }; V8_EXPORT_PRIVATE std::vector<NumberFormatSpan> FlattenRegionsToParts( std::vector<NumberFormatSpan>* regions); } // namespace internal } // namespace v8 #include "src/objects/object-macros-undef.h" #endif // V8_OBJECTS_JS_NUMBER_FORMAT_H_