IntlNumberFormat.cpp [plain text]
#include "config.h"
#include "IntlNumberFormat.h"
#include "Error.h"
#include "IntlObjectInlines.h"
#include "JSBoundFunction.h"
#include "JSCInlines.h"
#include "ObjectConstructor.h"
#include <wtf/unicode/icu/ICUHelpers.h>
namespace JSC {
const ClassInfo IntlNumberFormat::s_info = { "Object", &Base::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(IntlNumberFormat) };
namespace IntlNumberFormatInternal {
constexpr bool verbose = false;
}
struct IntlNumberFormatField {
int32_t type;
size_t size;
};
void IntlNumberFormat::UNumberFormatDeleter::operator()(UNumberFormat* numberFormat) const
{
if (numberFormat)
unum_close(numberFormat);
}
IntlNumberFormat* IntlNumberFormat::create(VM& vm, Structure* structure)
{
IntlNumberFormat* format = new (NotNull, allocateCell<IntlNumberFormat>(vm.heap)) IntlNumberFormat(vm, structure);
format->finishCreation(vm);
return format;
}
Structure* IntlNumberFormat::createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype)
{
return Structure::create(vm, globalObject, prototype, TypeInfo(ObjectType, StructureFlags), info());
}
IntlNumberFormat::IntlNumberFormat(VM& vm, Structure* structure)
: Base(vm, structure)
{
}
void IntlNumberFormat::finishCreation(VM& vm)
{
Base::finishCreation(vm);
ASSERT(inherits(vm, info()));
}
void IntlNumberFormat::visitChildren(JSCell* cell, SlotVisitor& visitor)
{
IntlNumberFormat* thisObject = jsCast<IntlNumberFormat*>(cell);
ASSERT_GC_OBJECT_INHERITS(thisObject, info());
Base::visitChildren(thisObject, visitor);
visitor.append(thisObject->m_boundFormat);
}
Vector<String> IntlNumberFormat::localeData(const String& locale, RelevantExtensionKey key)
{
ASSERT_UNUSED(key, key == RelevantExtensionKey::Nu);
return numberingSystemsForLocale(locale);
}
static inline unsigned computeCurrencySortKey(const String& currency)
{
ASSERT(currency.length() == 3);
ASSERT(currency.isAllSpecialCharacters<isASCIIUpper>());
return (currency[0] << 16) + (currency[1] << 8) + currency[2];
}
static inline unsigned computeCurrencySortKey(const char* currency)
{
ASSERT(strlen(currency) == 3);
ASSERT(isAllSpecialCharacters<isASCIIUpper>(currency, 3));
return (currency[0] << 16) + (currency[1] << 8) + currency[2];
}
static unsigned extractCurrencySortKey(std::pair<const char*, unsigned>* currencyMinorUnit)
{
return computeCurrencySortKey(currencyMinorUnit->first);
}
static unsigned computeCurrencyDigits(const String& currency)
{
std::pair<const char*, unsigned> currencyMinorUnits[] = {
{ "BHD", 3 },
{ "BIF", 0 },
{ "BYR", 0 },
{ "CLF", 4 },
{ "CLP", 0 },
{ "DJF", 0 },
{ "GNF", 0 },
{ "IQD", 3 },
{ "ISK", 0 },
{ "JOD", 3 },
{ "JPY", 0 },
{ "KMF", 0 },
{ "KRW", 0 },
{ "KWD", 3 },
{ "LYD", 3 },
{ "OMR", 3 },
{ "PYG", 0 },
{ "RWF", 0 },
{ "TND", 3 },
{ "UGX", 0 },
{ "UYI", 0 },
{ "VND", 0 },
{ "VUV", 0 },
{ "XAF", 0 },
{ "XOF", 0 },
{ "XPF", 0 }
};
auto* currencyMinorUnit = tryBinarySearch<std::pair<const char*, unsigned>>(currencyMinorUnits, WTF_ARRAY_LENGTH(currencyMinorUnits), computeCurrencySortKey(currency), extractCurrencySortKey);
if (currencyMinorUnit)
return currencyMinorUnit->second;
return 2;
}
void IntlNumberFormat::initializeNumberFormat(JSGlobalObject* globalObject, JSValue locales, JSValue optionsValue)
{
VM& vm = globalObject->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
auto requestedLocales = canonicalizeLocaleList(globalObject, locales);
RETURN_IF_EXCEPTION(scope, void());
JSObject* options;
if (optionsValue.isUndefined())
options = constructEmptyObject(vm, globalObject->nullPrototypeObjectStructure());
else {
options = optionsValue.toObject(globalObject);
RETURN_IF_EXCEPTION(scope, void());
}
ResolveLocaleOptions localeOptions;
LocaleMatcher localeMatcher = intlOption<LocaleMatcher>(globalObject, options, vm.propertyNames->localeMatcher, { { "lookup"_s, LocaleMatcher::Lookup }, { "best fit"_s, LocaleMatcher::BestFit } }, "localeMatcher must be either \"lookup\" or \"best fit\""_s, LocaleMatcher::BestFit);
RETURN_IF_EXCEPTION(scope, void());
String numberingSystem = intlStringOption(globalObject, options, vm.propertyNames->numberingSystem, { }, nullptr, nullptr);
RETURN_IF_EXCEPTION(scope, void());
if (!numberingSystem.isNull()) {
if (!isUnicodeLocaleIdentifierType(numberingSystem)) {
throwRangeError(globalObject, scope, "numberingSystem is not a well-formed numbering system value"_s);
return;
}
localeOptions[static_cast<unsigned>(RelevantExtensionKey::Nu)] = numberingSystem;
}
auto& availableLocales = intlNumberFormatAvailableLocales();
auto resolved = resolveLocale(globalObject, availableLocales, requestedLocales, localeMatcher, localeOptions, { RelevantExtensionKey::Nu }, localeData);
m_locale = resolved.locale;
if (m_locale.isEmpty()) {
throwTypeError(globalObject, scope, "failed to initialize NumberFormat due to invalid locale"_s);
return;
}
m_numberingSystem = resolved.extensions[static_cast<unsigned>(RelevantExtensionKey::Nu)];
m_style = intlOption<Style>(globalObject, options, vm.propertyNames->style, { { "decimal"_s, Style::Decimal }, { "percent"_s, Style::Percent }, { "currency"_s, Style::Currency } }, "style must be either \"decimal\", \"percent\", or \"currency\""_s, Style::Decimal);
RETURN_IF_EXCEPTION(scope, void());
String currency = intlStringOption(globalObject, options, Identifier::fromString(vm, "currency"), { }, nullptr, nullptr);
RETURN_IF_EXCEPTION(scope, void());
if (!currency.isNull()) {
if (!isWellFormedCurrencyCode(currency)) {
throwException(globalObject, scope, createRangeError(globalObject, "currency is not a well-formed currency code"_s));
return;
}
}
unsigned currencyDigits = 0;
if (m_style == Style::Currency) {
if (currency.isNull()) {
throwTypeError(globalObject, scope, "currency must be a string"_s);
return;
}
currency = currency.convertToASCIIUppercase();
m_currency = currency;
currencyDigits = computeCurrencyDigits(currency);
}
m_currencyDisplay = intlOption<CurrencyDisplay>(globalObject, options, Identifier::fromString(vm, "currencyDisplay"), { { "code"_s, CurrencyDisplay::Code }, { "symbol"_s, CurrencyDisplay::Symbol }, { "name"_s, CurrencyDisplay::Name } }, "currencyDisplay must be either \"code\", \"symbol\", or \"name\""_s, CurrencyDisplay::Symbol);
RETURN_IF_EXCEPTION(scope, void());
unsigned minimumIntegerDigits = intlNumberOption(globalObject, options, Identifier::fromString(vm, "minimumIntegerDigits"), 1, 21, 1);
RETURN_IF_EXCEPTION(scope, void());
m_minimumIntegerDigits = minimumIntegerDigits;
unsigned minimumFractionDigitsDefault = (m_style == Style::Currency) ? currencyDigits : 0;
unsigned minimumFractionDigits = intlNumberOption(globalObject, options, Identifier::fromString(vm, "minimumFractionDigits"), 0, 20, minimumFractionDigitsDefault);
RETURN_IF_EXCEPTION(scope, void());
m_minimumFractionDigits = minimumFractionDigits;
unsigned maximumFractionDigitsDefault;
if (m_style == Style::Currency)
maximumFractionDigitsDefault = std::max(minimumFractionDigits, currencyDigits);
else if (m_style == Style::Percent)
maximumFractionDigitsDefault = minimumFractionDigits;
else
maximumFractionDigitsDefault = std::max(minimumFractionDigits, 3u);
unsigned maximumFractionDigits = intlNumberOption(globalObject, options, Identifier::fromString(vm, "maximumFractionDigits"), minimumFractionDigits, 20, maximumFractionDigitsDefault);
RETURN_IF_EXCEPTION(scope, void());
m_maximumFractionDigits = maximumFractionDigits;
JSValue minimumSignificantDigitsValue = options->get(globalObject, Identifier::fromString(vm, "minimumSignificantDigits"));
RETURN_IF_EXCEPTION(scope, void());
JSValue maximumSignificantDigitsValue = options->get(globalObject, Identifier::fromString(vm, "maximumSignificantDigits"));
RETURN_IF_EXCEPTION(scope, void());
if (!minimumSignificantDigitsValue.isUndefined() || !maximumSignificantDigitsValue.isUndefined()) {
unsigned minimumSignificantDigits = intlDefaultNumberOption(globalObject, minimumSignificantDigitsValue, Identifier::fromString(vm, "minimumSignificantDigits"), 1, 21, 1);
RETURN_IF_EXCEPTION(scope, void());
unsigned maximumSignificantDigits = intlDefaultNumberOption(globalObject, maximumSignificantDigitsValue, Identifier::fromString(vm, "maximumSignificantDigits"), minimumSignificantDigits, 21, 21);
RETURN_IF_EXCEPTION(scope, void());
m_minimumSignificantDigits = minimumSignificantDigits;
m_maximumSignificantDigits = maximumSignificantDigits;
}
TriState useGrouping = intlBooleanOption(globalObject, options, Identifier::fromString(vm, "useGrouping"));
RETURN_IF_EXCEPTION(scope, void());
m_useGrouping = useGrouping != TriState::False;
UNumberFormatStyle style = UNUM_DEFAULT;
switch (m_style) {
case Style::Decimal:
style = UNUM_DECIMAL;
break;
case Style::Percent:
style = UNUM_PERCENT;
break;
case Style::Currency:
switch (m_currencyDisplay) {
case CurrencyDisplay::Code:
style = UNUM_CURRENCY_ISO;
break;
case CurrencyDisplay::Symbol:
style = UNUM_CURRENCY;
break;
case CurrencyDisplay::Name:
style = UNUM_CURRENCY_PLURAL;
break;
default:
ASSERT_NOT_REACHED();
}
break;
default:
ASSERT_NOT_REACHED();
}
CString dataLocaleWithExtensions = makeString(resolved.dataLocale, "-u-nu-", m_numberingSystem).utf8();
dataLogLnIf(IntlNumberFormatInternal::verbose, "dataLocaleWithExtensions:(", dataLocaleWithExtensions , ")");
UErrorCode status = U_ZERO_ERROR;
m_numberFormat = std::unique_ptr<UNumberFormat, UNumberFormatDeleter>(unum_open(style, nullptr, 0, dataLocaleWithExtensions.data(), nullptr, &status));
if (U_FAILURE(status)) {
throwTypeError(globalObject, scope, "failed to initialize NumberFormat"_s);
return;
}
if (m_style == Style::Currency) {
unum_setTextAttribute(m_numberFormat.get(), UNUM_CURRENCY_CODE, StringView(m_currency).upconvertedCharacters(), m_currency.length(), &status);
if (U_FAILURE(status)) {
throwTypeError(globalObject, scope, "failed to initialize NumberFormat"_s);
return;
}
}
if (!m_minimumSignificantDigits) {
unum_setAttribute(m_numberFormat.get(), UNUM_MIN_INTEGER_DIGITS, m_minimumIntegerDigits);
unum_setAttribute(m_numberFormat.get(), UNUM_MIN_FRACTION_DIGITS, m_minimumFractionDigits);
unum_setAttribute(m_numberFormat.get(), UNUM_MAX_FRACTION_DIGITS, m_maximumFractionDigits);
} else {
unum_setAttribute(m_numberFormat.get(), UNUM_SIGNIFICANT_DIGITS_USED, true);
unum_setAttribute(m_numberFormat.get(), UNUM_MIN_SIGNIFICANT_DIGITS, m_minimumSignificantDigits);
unum_setAttribute(m_numberFormat.get(), UNUM_MAX_SIGNIFICANT_DIGITS, m_maximumSignificantDigits);
}
unum_setAttribute(m_numberFormat.get(), UNUM_GROUPING_USED, m_useGrouping);
unum_setAttribute(m_numberFormat.get(), UNUM_ROUNDING_MODE, UNUM_ROUND_HALFUP);
}
JSValue IntlNumberFormat::format(JSGlobalObject* globalObject, double value) const
{
ASSERT(m_numberFormat);
VM& vm = globalObject->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
Vector<UChar, 32> buffer;
auto status = callBufferProducingFunction(unum_formatDouble, m_numberFormat.get(), value, buffer, nullptr);
if (U_FAILURE(status))
return throwTypeError(globalObject, scope, "Failed to format a number."_s);
return jsString(vm, String(buffer));
}
JSValue IntlNumberFormat::format(JSGlobalObject* globalObject, JSBigInt* value) const
{
ASSERT(m_numberFormat);
VM& vm = globalObject->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
auto string = value->toString(globalObject, 10);
RETURN_IF_EXCEPTION(scope, { });
ASSERT(string.is8Bit() && string.isAllASCII());
auto* rawString = reinterpret_cast<const char*>(string.characters8());
Vector<UChar, 32> buffer;
auto status = callBufferProducingFunction(unum_formatDecimal, m_numberFormat.get(), rawString, string.length(), buffer, nullptr);
if (U_FAILURE(status))
return throwTypeError(globalObject, scope, "Failed to format a BigInt."_s);
return jsString(vm, String(buffer));
}
ASCIILiteral IntlNumberFormat::styleString(Style style)
{
switch (style) {
case Style::Decimal:
return "decimal"_s;
case Style::Percent:
return "percent"_s;
case Style::Currency:
return "currency"_s;
}
ASSERT_NOT_REACHED();
return ASCIILiteral::null();
}
ASCIILiteral IntlNumberFormat::currencyDisplayString(CurrencyDisplay currencyDisplay)
{
switch (currencyDisplay) {
case CurrencyDisplay::Code:
return "code"_s;
case CurrencyDisplay::Symbol:
return "symbol"_s;
case CurrencyDisplay::Name:
return "name"_s;
}
ASSERT_NOT_REACHED();
return ASCIILiteral::null();
}
JSObject* IntlNumberFormat::resolvedOptions(JSGlobalObject* globalObject) const
{
VM& vm = globalObject->vm();
JSObject* options = constructEmptyObject(globalObject);
options->putDirect(vm, vm.propertyNames->locale, jsString(vm, m_locale));
options->putDirect(vm, vm.propertyNames->numberingSystem, jsString(vm, m_numberingSystem));
options->putDirect(vm, vm.propertyNames->style, jsNontrivialString(vm, styleString(m_style)));
if (m_style == Style::Currency) {
options->putDirect(vm, Identifier::fromString(vm, "currency"), jsNontrivialString(vm, m_currency));
options->putDirect(vm, Identifier::fromString(vm, "currencyDisplay"), jsNontrivialString(vm, currencyDisplayString(m_currencyDisplay)));
}
options->putDirect(vm, Identifier::fromString(vm, "minimumIntegerDigits"), jsNumber(m_minimumIntegerDigits));
options->putDirect(vm, Identifier::fromString(vm, "minimumFractionDigits"), jsNumber(m_minimumFractionDigits));
options->putDirect(vm, Identifier::fromString(vm, "maximumFractionDigits"), jsNumber(m_maximumFractionDigits));
if (m_minimumSignificantDigits) {
ASSERT(m_maximumSignificantDigits);
options->putDirect(vm, Identifier::fromString(vm, "minimumSignificantDigits"), jsNumber(m_minimumSignificantDigits));
options->putDirect(vm, Identifier::fromString(vm, "maximumSignificantDigits"), jsNumber(m_maximumSignificantDigits));
}
options->putDirect(vm, Identifier::fromString(vm, "useGrouping"), jsBoolean(m_useGrouping));
return options;
}
void IntlNumberFormat::setBoundFormat(VM& vm, JSBoundFunction* format)
{
m_boundFormat.set(vm, this, format);
}
static ASCIILiteral partTypeString(UNumberFormatFields field, double value)
{
switch (field) {
case UNUM_INTEGER_FIELD:
if (std::isnan(value))
return "nan"_s;
if (!std::isfinite(value))
return "infinity"_s;
return "integer"_s;
case UNUM_FRACTION_FIELD:
return "fraction"_s;
case UNUM_DECIMAL_SEPARATOR_FIELD:
return "decimal"_s;
case UNUM_GROUPING_SEPARATOR_FIELD:
return "group"_s;
case UNUM_CURRENCY_FIELD:
return "currency"_s;
case UNUM_PERCENT_FIELD:
return "percentSign"_s;
case UNUM_SIGN_FIELD:
return value < 0 ? "minusSign"_s : "plusSign"_s;
case UNUM_PERMILL_FIELD:
case UNUM_EXPONENT_SYMBOL_FIELD:
case UNUM_EXPONENT_SIGN_FIELD:
case UNUM_EXPONENT_FIELD:
default:
return "unknown"_s;
}
return "unknown"_s;
}
void IntlNumberFormat::formatToPartsInternal(JSGlobalObject* globalObject, double value, const String& formatted, UFieldPositionIterator* iterator, JSArray* parts, JSString* unit)
{
VM& vm = globalObject->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
auto stringLength = formatted.length();
int32_t literalFieldType = -1;
IntlNumberFormatField literalField { literalFieldType, stringLength };
Vector<IntlNumberFormatField, 32> fields(stringLength, literalField);
int32_t beginIndex = 0;
int32_t endIndex = 0;
auto fieldType = ufieldpositer_next(iterator, &beginIndex, &endIndex);
while (fieldType >= 0) {
size_t size = endIndex - beginIndex;
for (auto i = beginIndex; i < endIndex; ++i) {
if (fields[i].size >= size)
fields[i] = IntlNumberFormatField { fieldType, size };
}
fieldType = ufieldpositer_next(iterator, &beginIndex, &endIndex);
}
auto literalString = jsNontrivialString(vm, "literal"_s);
Identifier unitName;
if (unit)
unitName = Identifier::fromString(vm, "unit");
size_t currentIndex = 0;
while (currentIndex < stringLength) {
auto startIndex = currentIndex;
auto fieldType = fields[currentIndex].type;
while (currentIndex < stringLength && fields[currentIndex].type == fieldType)
++currentIndex;
auto partType = fieldType == literalFieldType ? literalString : jsString(vm, partTypeString(UNumberFormatFields(fieldType), value));
auto partValue = jsSubstring(vm, formatted, startIndex, currentIndex - startIndex);
JSObject* part = constructEmptyObject(globalObject);
part->putDirect(vm, vm.propertyNames->type, partType);
part->putDirect(vm, vm.propertyNames->value, partValue);
if (unit)
part->putDirect(vm, unitName, unit);
parts->push(globalObject, part);
RETURN_IF_EXCEPTION(scope, void());
}
}
JSValue IntlNumberFormat::formatToParts(JSGlobalObject* globalObject, double value) const
{
ASSERT(m_numberFormat);
VM& vm = globalObject->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
UErrorCode status = U_ZERO_ERROR;
auto fieldItr = std::unique_ptr<UFieldPositionIterator, UFieldPositionIteratorDeleter>(ufieldpositer_open(&status));
if (U_FAILURE(status))
return throwTypeError(globalObject, scope, "failed to open field position iterator"_s);
Vector<UChar, 32> result;
status = callBufferProducingFunction(unum_formatDoubleForFields, m_numberFormat.get(), value, result, fieldItr.get());
if (U_FAILURE(status))
return throwTypeError(globalObject, scope, "failed to format a number."_s);
auto resultString = String(result);
JSArray* parts = JSArray::tryCreate(vm, globalObject->arrayStructureForIndexingTypeDuringAllocation(ArrayWithContiguous), 0);
if (!parts)
return throwOutOfMemoryError(globalObject, scope);
formatToPartsInternal(globalObject, value, resultString, fieldItr.get(), parts);
RETURN_IF_EXCEPTION(scope, { });
return parts;
}
}