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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /intl/icu/source/i18n/number_fluent.cpp
parentInitial commit. (diff)
downloadfirefox-esr-upstream.tar.xz
firefox-esr-upstream.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--intl/icu/source/i18n/number_fluent.cpp738
1 files changed, 738 insertions, 0 deletions
diff --git a/intl/icu/source/i18n/number_fluent.cpp b/intl/icu/source/i18n/number_fluent.cpp
new file mode 100644
index 0000000000..45d6b06c6d
--- /dev/null
+++ b/intl/icu/source/i18n/number_fluent.cpp
@@ -0,0 +1,738 @@
+// © 2017 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+
+#include "unicode/utypes.h"
+
+#if !UCONFIG_NO_FORMATTING
+
+#include "uassert.h"
+#include "unicode/numberformatter.h"
+#include "number_decimalquantity.h"
+#include "number_formatimpl.h"
+#include "umutex.h"
+#include "number_asformat.h"
+#include "number_utils.h"
+#include "number_utypes.h"
+#include "number_mapper.h"
+#include "util.h"
+#include "fphdlimp.h"
+
+using namespace icu;
+using namespace icu::number;
+using namespace icu::number::impl;
+
+#if (U_PF_WINDOWS <= U_PLATFORM && U_PLATFORM <= U_PF_CYGWIN) && defined(_MSC_VER)
+// Ignore MSVC warning 4661. This is generated for NumberFormatterSettings<>::toSkeleton() as this method
+// is defined elsewhere (in number_skeletons.cpp). The compiler is warning that the explicit template instantiation
+// inside this single translation unit (CPP file) is incomplete, and thus it isn't sure if the template class is
+// fully defined. However, since each translation unit explicitly instantiates all the necessary template classes,
+// they will all be passed to the linker, and the linker will still find and export all the class members.
+#pragma warning(push)
+#pragma warning(disable: 4661)
+#endif
+
+template<typename Derived>
+Derived NumberFormatterSettings<Derived>::notation(const Notation& notation) const& {
+ Derived copy(*this);
+ // NOTE: Slicing is OK.
+ copy.fMacros.notation = notation;
+ return copy;
+}
+
+template<typename Derived>
+Derived NumberFormatterSettings<Derived>::notation(const Notation& notation)&& {
+ Derived move(std::move(*this));
+ // NOTE: Slicing is OK.
+ move.fMacros.notation = notation;
+ return move;
+}
+
+template<typename Derived>
+Derived NumberFormatterSettings<Derived>::unit(const icu::MeasureUnit& unit) const& {
+ Derived copy(*this);
+ // NOTE: Slicing occurs here. However, CurrencyUnit can be restored from MeasureUnit.
+ // TimeUnit may be affected, but TimeUnit is not as relevant to number formatting.
+ copy.fMacros.unit = unit;
+ return copy;
+}
+
+template<typename Derived>
+Derived NumberFormatterSettings<Derived>::unit(const icu::MeasureUnit& unit)&& {
+ Derived move(std::move(*this));
+ // See comments above about slicing.
+ move.fMacros.unit = unit;
+ return move;
+}
+
+template<typename Derived>
+Derived NumberFormatterSettings<Derived>::adoptUnit(icu::MeasureUnit* unit) const& {
+ Derived copy(*this);
+ // Just move the unit into the MacroProps by value, and delete it since we have ownership.
+ // NOTE: Slicing occurs here. However, CurrencyUnit can be restored from MeasureUnit.
+ // TimeUnit may be affected, but TimeUnit is not as relevant to number formatting.
+ if (unit != nullptr) {
+ // TODO: On nullptr, reset to default value?
+ copy.fMacros.unit = std::move(*unit);
+ delete unit;
+ }
+ return copy;
+}
+
+template<typename Derived>
+Derived NumberFormatterSettings<Derived>::adoptUnit(icu::MeasureUnit* unit)&& {
+ Derived move(std::move(*this));
+ // See comments above about slicing and ownership.
+ if (unit != nullptr) {
+ // TODO: On nullptr, reset to default value?
+ move.fMacros.unit = std::move(*unit);
+ delete unit;
+ }
+ return move;
+}
+
+template<typename Derived>
+Derived NumberFormatterSettings<Derived>::perUnit(const icu::MeasureUnit& perUnit) const& {
+ Derived copy(*this);
+ // See comments above about slicing.
+ copy.fMacros.perUnit = perUnit;
+ return copy;
+}
+
+template<typename Derived>
+Derived NumberFormatterSettings<Derived>::perUnit(const icu::MeasureUnit& perUnit)&& {
+ Derived move(std::move(*this));
+ // See comments above about slicing.
+ move.fMacros.perUnit = perUnit;
+ return move;
+}
+
+template<typename Derived>
+Derived NumberFormatterSettings<Derived>::adoptPerUnit(icu::MeasureUnit* perUnit) const& {
+ Derived copy(*this);
+ // See comments above about slicing and ownership.
+ if (perUnit != nullptr) {
+ // TODO: On nullptr, reset to default value?
+ copy.fMacros.perUnit = std::move(*perUnit);
+ delete perUnit;
+ }
+ return copy;
+}
+
+template<typename Derived>
+Derived NumberFormatterSettings<Derived>::adoptPerUnit(icu::MeasureUnit* perUnit)&& {
+ Derived move(std::move(*this));
+ // See comments above about slicing and ownership.
+ if (perUnit != nullptr) {
+ // TODO: On nullptr, reset to default value?
+ move.fMacros.perUnit = std::move(*perUnit);
+ delete perUnit;
+ }
+ return move;
+}
+
+template<typename Derived>
+Derived NumberFormatterSettings<Derived>::precision(const Precision& precision) const& {
+ Derived copy(*this);
+ // NOTE: Slicing is OK.
+ copy.fMacros.precision = precision;
+ return copy;
+}
+
+template<typename Derived>
+Derived NumberFormatterSettings<Derived>::precision(const Precision& precision)&& {
+ Derived move(std::move(*this));
+ // NOTE: Slicing is OK.
+ move.fMacros.precision = precision;
+ return move;
+}
+
+template<typename Derived>
+Derived NumberFormatterSettings<Derived>::roundingMode(UNumberFormatRoundingMode roundingMode) const& {
+ Derived copy(*this);
+ copy.fMacros.roundingMode = roundingMode;
+ return copy;
+}
+
+template<typename Derived>
+Derived NumberFormatterSettings<Derived>::roundingMode(UNumberFormatRoundingMode roundingMode)&& {
+ Derived move(std::move(*this));
+ move.fMacros.roundingMode = roundingMode;
+ return move;
+}
+
+template<typename Derived>
+Derived NumberFormatterSettings<Derived>::grouping(UNumberGroupingStrategy strategy) const& {
+ Derived copy(*this);
+ // NOTE: This is slightly different than how the setting is stored in Java
+ // because we want to put it on the stack.
+ copy.fMacros.grouper = Grouper::forStrategy(strategy);
+ return copy;
+}
+
+template<typename Derived>
+Derived NumberFormatterSettings<Derived>::grouping(UNumberGroupingStrategy strategy)&& {
+ Derived move(std::move(*this));
+ move.fMacros.grouper = Grouper::forStrategy(strategy);
+ return move;
+}
+
+template<typename Derived>
+Derived NumberFormatterSettings<Derived>::integerWidth(const IntegerWidth& style) const& {
+ Derived copy(*this);
+ copy.fMacros.integerWidth = style;
+ return copy;
+}
+
+template<typename Derived>
+Derived NumberFormatterSettings<Derived>::integerWidth(const IntegerWidth& style)&& {
+ Derived move(std::move(*this));
+ move.fMacros.integerWidth = style;
+ return move;
+}
+
+template<typename Derived>
+Derived NumberFormatterSettings<Derived>::symbols(const DecimalFormatSymbols& symbols) const& {
+ Derived copy(*this);
+ copy.fMacros.symbols.setTo(symbols);
+ return copy;
+}
+
+template<typename Derived>
+Derived NumberFormatterSettings<Derived>::symbols(const DecimalFormatSymbols& symbols)&& {
+ Derived move(std::move(*this));
+ move.fMacros.symbols.setTo(symbols);
+ return move;
+}
+
+template<typename Derived>
+Derived NumberFormatterSettings<Derived>::adoptSymbols(NumberingSystem* ns) const& {
+ Derived copy(*this);
+ copy.fMacros.symbols.setTo(ns);
+ return copy;
+}
+
+template<typename Derived>
+Derived NumberFormatterSettings<Derived>::adoptSymbols(NumberingSystem* ns)&& {
+ Derived move(std::move(*this));
+ move.fMacros.symbols.setTo(ns);
+ return move;
+}
+
+template<typename Derived>
+Derived NumberFormatterSettings<Derived>::unitWidth(UNumberUnitWidth width) const& {
+ Derived copy(*this);
+ copy.fMacros.unitWidth = width;
+ return copy;
+}
+
+template<typename Derived>
+Derived NumberFormatterSettings<Derived>::unitWidth(UNumberUnitWidth width)&& {
+ Derived move(std::move(*this));
+ move.fMacros.unitWidth = width;
+ return move;
+}
+
+template<typename Derived>
+Derived NumberFormatterSettings<Derived>::sign(UNumberSignDisplay style) const& {
+ Derived copy(*this);
+ copy.fMacros.sign = style;
+ return copy;
+}
+
+template<typename Derived>
+Derived NumberFormatterSettings<Derived>::sign(UNumberSignDisplay style)&& {
+ Derived move(std::move(*this));
+ move.fMacros.sign = style;
+ return move;
+}
+
+template<typename Derived>
+Derived NumberFormatterSettings<Derived>::decimal(UNumberDecimalSeparatorDisplay style) const& {
+ Derived copy(*this);
+ copy.fMacros.decimal = style;
+ return copy;
+}
+
+template<typename Derived>
+Derived NumberFormatterSettings<Derived>::decimal(UNumberDecimalSeparatorDisplay style)&& {
+ Derived move(std::move(*this));
+ move.fMacros.decimal = style;
+ return move;
+}
+
+template<typename Derived>
+Derived NumberFormatterSettings<Derived>::scale(const Scale& scale) const& {
+ Derived copy(*this);
+ copy.fMacros.scale = scale;
+ return copy;
+}
+
+template<typename Derived>
+Derived NumberFormatterSettings<Derived>::scale(const Scale& scale)&& {
+ Derived move(std::move(*this));
+ move.fMacros.scale = scale;
+ return move;
+}
+
+template<typename Derived>
+Derived NumberFormatterSettings<Derived>::usage(const StringPiece usage) const& {
+ Derived copy(*this);
+ copy.fMacros.usage.set(usage);
+ return copy;
+}
+
+template<typename Derived>
+Derived NumberFormatterSettings<Derived>::usage(const StringPiece usage)&& {
+ Derived move(std::move(*this));
+ move.fMacros.usage.set(usage);
+ return move;
+}
+
+template <typename Derived>
+Derived NumberFormatterSettings<Derived>::displayOptions(const DisplayOptions &displayOptions) const & {
+ Derived copy(*this);
+ // `displayCase` does not recognise the `undefined`
+ if (displayOptions.getGrammaticalCase() == UDISPOPT_GRAMMATICAL_CASE_UNDEFINED) {
+ copy.fMacros.unitDisplayCase.set(nullptr);
+ return copy;
+ }
+
+ copy.fMacros.unitDisplayCase.set(
+ udispopt_getGrammaticalCaseIdentifier(displayOptions.getGrammaticalCase()));
+ return copy;
+}
+
+template <typename Derived>
+Derived NumberFormatterSettings<Derived>::displayOptions(const DisplayOptions &displayOptions) && {
+ Derived move(std::move(*this));
+ // `displayCase` does not recognise the `undefined`
+ if (displayOptions.getGrammaticalCase() == UDISPOPT_GRAMMATICAL_CASE_UNDEFINED) {
+ move.fMacros.unitDisplayCase.set(nullptr);
+ return move;
+ }
+
+ move.fMacros.unitDisplayCase.set(
+ udispopt_getGrammaticalCaseIdentifier(displayOptions.getGrammaticalCase()));
+ return move;
+}
+
+template<typename Derived>
+Derived NumberFormatterSettings<Derived>::unitDisplayCase(const StringPiece unitDisplayCase) const& {
+ Derived copy(*this);
+ copy.fMacros.unitDisplayCase.set(unitDisplayCase);
+ return copy;
+}
+
+template<typename Derived>
+Derived NumberFormatterSettings<Derived>::unitDisplayCase(const StringPiece unitDisplayCase)&& {
+ Derived move(std::move(*this));
+ move.fMacros.unitDisplayCase.set(unitDisplayCase);
+ return move;
+}
+
+template<typename Derived>
+Derived NumberFormatterSettings<Derived>::padding(const Padder& padder) const& {
+ Derived copy(*this);
+ copy.fMacros.padder = padder;
+ return copy;
+}
+
+template<typename Derived>
+Derived NumberFormatterSettings<Derived>::padding(const Padder& padder)&& {
+ Derived move(std::move(*this));
+ move.fMacros.padder = padder;
+ return move;
+}
+
+template<typename Derived>
+Derived NumberFormatterSettings<Derived>::threshold(int32_t threshold) const& {
+ Derived copy(*this);
+ copy.fMacros.threshold = threshold;
+ return copy;
+}
+
+template<typename Derived>
+Derived NumberFormatterSettings<Derived>::threshold(int32_t threshold)&& {
+ Derived move(std::move(*this));
+ move.fMacros.threshold = threshold;
+ return move;
+}
+
+template<typename Derived>
+Derived NumberFormatterSettings<Derived>::macros(const impl::MacroProps& macros) const& {
+ Derived copy(*this);
+ copy.fMacros = macros;
+ return copy;
+}
+
+template<typename Derived>
+Derived NumberFormatterSettings<Derived>::macros(const impl::MacroProps& macros)&& {
+ Derived move(std::move(*this));
+ move.fMacros = macros;
+ return move;
+}
+
+template<typename Derived>
+Derived NumberFormatterSettings<Derived>::macros(impl::MacroProps&& macros) const& {
+ Derived copy(*this);
+ copy.fMacros = std::move(macros);
+ return copy;
+}
+
+template<typename Derived>
+Derived NumberFormatterSettings<Derived>::macros(impl::MacroProps&& macros)&& {
+ Derived move(std::move(*this));
+ move.fMacros = std::move(macros);
+ return move;
+}
+
+// Note: toSkeleton defined in number_skeletons.cpp
+
+template<typename Derived>
+LocalPointer<Derived> NumberFormatterSettings<Derived>::clone() const & {
+ return LocalPointer<Derived>(new Derived(*this));
+}
+
+template<typename Derived>
+LocalPointer<Derived> NumberFormatterSettings<Derived>::clone() && {
+ return LocalPointer<Derived>(new Derived(std::move(*this)));
+}
+
+// Declare all classes that implement NumberFormatterSettings
+// See https://stackoverflow.com/a/495056/1407170
+template
+class icu::number::NumberFormatterSettings<icu::number::UnlocalizedNumberFormatter>;
+template
+class icu::number::NumberFormatterSettings<icu::number::LocalizedNumberFormatter>;
+
+
+UnlocalizedNumberFormatter NumberFormatter::with() {
+ UnlocalizedNumberFormatter result;
+ return result;
+}
+
+LocalizedNumberFormatter NumberFormatter::withLocale(const Locale& locale) {
+ return with().locale(locale);
+}
+
+// Note: forSkeleton defined in number_skeletons.cpp
+
+
+template<typename T> using NFS = NumberFormatterSettings<T>;
+using LNF = LocalizedNumberFormatter;
+using UNF = UnlocalizedNumberFormatter;
+
+UnlocalizedNumberFormatter::UnlocalizedNumberFormatter(const UNF& other)
+ : UNF(static_cast<const NFS<UNF>&>(other)) {}
+
+UnlocalizedNumberFormatter::UnlocalizedNumberFormatter(const NFS<UNF>& other)
+ : NFS<UNF>(other) {
+ // No additional fields to assign
+}
+
+// Make default copy constructor call the NumberFormatterSettings copy constructor.
+UnlocalizedNumberFormatter::UnlocalizedNumberFormatter(UNF&& src) noexcept
+ : UNF(static_cast<NFS<UNF>&&>(src)) {}
+
+UnlocalizedNumberFormatter::UnlocalizedNumberFormatter(NFS<UNF>&& src) noexcept
+ : NFS<UNF>(std::move(src)) {
+ // No additional fields to assign
+}
+
+UnlocalizedNumberFormatter& UnlocalizedNumberFormatter::operator=(const UNF& other) {
+ NFS<UNF>::operator=(static_cast<const NFS<UNF>&>(other));
+ // No additional fields to assign
+ return *this;
+}
+
+UnlocalizedNumberFormatter& UnlocalizedNumberFormatter::operator=(UNF&& src) noexcept {
+ NFS<UNF>::operator=(static_cast<NFS<UNF>&&>(src));
+ // No additional fields to assign
+ return *this;
+}
+
+// Make default copy constructor call the NumberFormatterSettings copy constructor.
+LocalizedNumberFormatter::LocalizedNumberFormatter(const LNF& other)
+ : LNF(static_cast<const NFS<LNF>&>(other)) {}
+
+LocalizedNumberFormatter::LocalizedNumberFormatter(const NFS<LNF>& other)
+ : NFS<LNF>(other) {
+ UErrorCode localStatus = U_ZERO_ERROR; // Can't bubble up the error
+ lnfCopyHelper(static_cast<const LNF&>(other), localStatus);
+}
+
+LocalizedNumberFormatter::LocalizedNumberFormatter(LocalizedNumberFormatter&& src) noexcept
+ : LNF(static_cast<NFS<LNF>&&>(src)) {}
+
+LocalizedNumberFormatter::LocalizedNumberFormatter(NFS<LNF>&& src) noexcept
+ : NFS<LNF>(std::move(src)) {
+ lnfMoveHelper(std::move(static_cast<LNF&&>(src)));
+}
+
+LocalizedNumberFormatter& LocalizedNumberFormatter::operator=(const LNF& other) {
+ if (this == &other) { return *this; } // self-assignment: no-op
+ NFS<LNF>::operator=(static_cast<const NFS<LNF>&>(other));
+ UErrorCode localStatus = U_ZERO_ERROR; // Can't bubble up the error
+ lnfCopyHelper(other, localStatus);
+ return *this;
+}
+
+LocalizedNumberFormatter& LocalizedNumberFormatter::operator=(LNF&& src) noexcept {
+ NFS<LNF>::operator=(static_cast<NFS<LNF>&&>(src));
+ lnfMoveHelper(std::move(src));
+ return *this;
+}
+
+void LocalizedNumberFormatter::resetCompiled() {
+ auto* callCount = reinterpret_cast<u_atomic_int32_t*>(fUnsafeCallCount);
+ umtx_storeRelease(*callCount, 0);
+ fCompiled = nullptr;
+}
+
+void LocalizedNumberFormatter::lnfMoveHelper(LNF&& src) {
+ // Copy over the compiled formatter and set call count to INT32_MIN as in computeCompiled().
+ // Don't copy the call count directly because doing so requires a loadAcquire/storeRelease.
+ // The bits themselves appear to be platform-dependent, so copying them might not be safe.
+ delete fCompiled;
+ if (src.fCompiled != nullptr) {
+ auto* callCount = reinterpret_cast<u_atomic_int32_t*>(fUnsafeCallCount);
+ umtx_storeRelease(*callCount, INT32_MIN);
+ fCompiled = src.fCompiled;
+ // Reset the source object to leave it in a safe state.
+ src.resetCompiled();
+ } else {
+ resetCompiled();
+ }
+
+ // Unconditionally move the warehouse
+ delete fWarehouse;
+ fWarehouse = src.fWarehouse;
+ src.fWarehouse = nullptr;
+}
+
+void LocalizedNumberFormatter::lnfCopyHelper(const LNF&, UErrorCode& status) {
+ // When copying, always reset the compiled formatter.
+ delete fCompiled;
+ resetCompiled();
+
+ // If MacroProps has a reference to AffixPatternProvider, we need to copy it.
+ // If MacroProps has a reference to PluralRules, copy that one, too.
+ delete fWarehouse;
+ if (fMacros.affixProvider || fMacros.rules) {
+ LocalPointer<DecimalFormatWarehouse> warehouse(new DecimalFormatWarehouse(), status);
+ if (U_FAILURE(status)) {
+ fWarehouse = nullptr;
+ return;
+ }
+ if (fMacros.affixProvider) {
+ warehouse->affixProvider.setTo(fMacros.affixProvider, status);
+ fMacros.affixProvider = &warehouse->affixProvider.get();
+ }
+ if (fMacros.rules) {
+ warehouse->rules.adoptInsteadAndCheckErrorCode(
+ new PluralRules(*fMacros.rules), status);
+ fMacros.rules = warehouse->rules.getAlias();
+ }
+ fWarehouse = warehouse.orphan();
+ } else {
+ fWarehouse = nullptr;
+ }
+}
+
+
+LocalizedNumberFormatter::~LocalizedNumberFormatter() {
+ delete fCompiled;
+ delete fWarehouse;
+}
+
+LocalizedNumberFormatter::LocalizedNumberFormatter(const MacroProps& macros, const Locale& locale) {
+ fMacros = macros;
+ fMacros.locale = locale;
+}
+
+LocalizedNumberFormatter::LocalizedNumberFormatter(MacroProps&& macros, const Locale& locale) {
+ fMacros = std::move(macros);
+ fMacros.locale = locale;
+}
+
+LocalizedNumberFormatter UnlocalizedNumberFormatter::locale(const Locale& locale) const& {
+ return LocalizedNumberFormatter(fMacros, locale);
+}
+
+LocalizedNumberFormatter UnlocalizedNumberFormatter::locale(const Locale& locale)&& {
+ return LocalizedNumberFormatter(std::move(fMacros), locale);
+}
+
+FormattedNumber LocalizedNumberFormatter::formatInt(int64_t value, UErrorCode& status) const {
+ if (U_FAILURE(status)) { return FormattedNumber(U_ILLEGAL_ARGUMENT_ERROR); }
+ auto results = new UFormattedNumberData();
+ if (results == nullptr) {
+ status = U_MEMORY_ALLOCATION_ERROR;
+ return FormattedNumber(status);
+ }
+ results->quantity.setToLong(value);
+ formatImpl(results, status);
+
+ // Do not save the results object if we encountered a failure.
+ if (U_SUCCESS(status)) {
+ return FormattedNumber(results);
+ } else {
+ delete results;
+ return FormattedNumber(status);
+ }
+}
+
+FormattedNumber LocalizedNumberFormatter::formatDouble(double value, UErrorCode& status) const {
+ if (U_FAILURE(status)) { return FormattedNumber(U_ILLEGAL_ARGUMENT_ERROR); }
+ auto results = new UFormattedNumberData();
+ if (results == nullptr) {
+ status = U_MEMORY_ALLOCATION_ERROR;
+ return FormattedNumber(status);
+ }
+ results->quantity.setToDouble(value);
+ formatImpl(results, status);
+
+ // Do not save the results object if we encountered a failure.
+ if (U_SUCCESS(status)) {
+ return FormattedNumber(results);
+ } else {
+ delete results;
+ return FormattedNumber(status);
+ }
+}
+
+FormattedNumber LocalizedNumberFormatter::formatDecimal(StringPiece value, UErrorCode& status) const {
+ if (U_FAILURE(status)) { return FormattedNumber(U_ILLEGAL_ARGUMENT_ERROR); }
+ auto results = new UFormattedNumberData();
+ if (results == nullptr) {
+ status = U_MEMORY_ALLOCATION_ERROR;
+ return FormattedNumber(status);
+ }
+ results->quantity.setToDecNumber(value, status);
+ formatImpl(results, status);
+
+ // Do not save the results object if we encountered a failure.
+ if (U_SUCCESS(status)) {
+ return FormattedNumber(results);
+ } else {
+ delete results;
+ return FormattedNumber(status);
+ }
+}
+
+FormattedNumber
+LocalizedNumberFormatter::formatDecimalQuantity(const DecimalQuantity& dq, UErrorCode& status) const {
+ if (U_FAILURE(status)) { return FormattedNumber(U_ILLEGAL_ARGUMENT_ERROR); }
+ auto results = new UFormattedNumberData();
+ if (results == nullptr) {
+ status = U_MEMORY_ALLOCATION_ERROR;
+ return FormattedNumber(status);
+ }
+ results->quantity = dq;
+ formatImpl(results, status);
+
+ // Do not save the results object if we encountered a failure.
+ if (U_SUCCESS(status)) {
+ return FormattedNumber(results);
+ } else {
+ delete results;
+ return FormattedNumber(status);
+ }
+}
+
+void LocalizedNumberFormatter::formatImpl(impl::UFormattedNumberData* results, UErrorCode& status) const {
+ if (computeCompiled(status)) {
+ fCompiled->format(results, status);
+ } else {
+ NumberFormatterImpl::formatStatic(fMacros, results, status);
+ }
+ if (U_FAILURE(status)) {
+ return;
+ }
+ results->getStringRef().writeTerminator(status);
+}
+
+void LocalizedNumberFormatter::getAffixImpl(bool isPrefix, bool isNegative, UnicodeString& result,
+ UErrorCode& status) const {
+ FormattedStringBuilder string;
+ auto signum = static_cast<Signum>(isNegative ? SIGNUM_NEG : SIGNUM_POS);
+ // Always return affixes for plural form OTHER.
+ static const StandardPlural::Form plural = StandardPlural::OTHER;
+ int32_t prefixLength;
+ if (computeCompiled(status)) {
+ prefixLength = fCompiled->getPrefixSuffix(signum, plural, string, status);
+ } else {
+ prefixLength = NumberFormatterImpl::getPrefixSuffixStatic(fMacros, signum, plural, string, status);
+ }
+ result.remove();
+ if (isPrefix) {
+ result.append(string.toTempUnicodeString().tempSubStringBetween(0, prefixLength));
+ } else {
+ result.append(string.toTempUnicodeString().tempSubStringBetween(prefixLength, string.length()));
+ }
+}
+
+bool LocalizedNumberFormatter::computeCompiled(UErrorCode& status) const {
+ // fUnsafeCallCount contains memory to be interpreted as an atomic int, most commonly
+ // std::atomic<int32_t>. Since the type of atomic int is platform-dependent, we cast the
+ // bytes in fUnsafeCallCount to u_atomic_int32_t, a typedef for the platform-dependent
+ // atomic int type defined in umutex.h.
+ static_assert(
+ sizeof(u_atomic_int32_t) <= sizeof(fUnsafeCallCount),
+ "Atomic integer size on this platform exceeds the size allocated by fUnsafeCallCount");
+ auto* callCount = reinterpret_cast<u_atomic_int32_t*>(
+ const_cast<LocalizedNumberFormatter*>(this)->fUnsafeCallCount);
+
+ // A positive value in the atomic int indicates that the data structure is not yet ready;
+ // a negative value indicates that it is ready. If, after the increment, the atomic int
+ // is exactly threshold, then it is the current thread's job to build the data structure.
+ // Note: We set the callCount to INT32_MIN so that if another thread proceeds to increment
+ // the atomic int, the value remains below zero.
+ int32_t currentCount = umtx_loadAcquire(*callCount);
+ if (0 <= currentCount && currentCount <= fMacros.threshold && fMacros.threshold > 0) {
+ currentCount = umtx_atomic_inc(callCount);
+ }
+
+ if (currentCount == fMacros.threshold && fMacros.threshold > 0) {
+ // Build the data structure and then use it (slow to fast path).
+ const NumberFormatterImpl* compiled = new NumberFormatterImpl(fMacros, status);
+ if (compiled == nullptr) {
+ status = U_MEMORY_ALLOCATION_ERROR;
+ return false;
+ }
+ U_ASSERT(fCompiled == nullptr);
+ const_cast<LocalizedNumberFormatter*>(this)->fCompiled = compiled;
+ umtx_storeRelease(*callCount, INT32_MIN);
+ return true;
+ } else if (currentCount < 0) {
+ // The data structure is already built; use it (fast path).
+ U_ASSERT(fCompiled != nullptr);
+ return true;
+ } else {
+ // Format the number without building the data structure (slow path).
+ return false;
+ }
+}
+
+const impl::NumberFormatterImpl* LocalizedNumberFormatter::getCompiled() const {
+ return fCompiled;
+}
+
+int32_t LocalizedNumberFormatter::getCallCount() const {
+ auto* callCount = reinterpret_cast<u_atomic_int32_t*>(
+ const_cast<LocalizedNumberFormatter*>(this)->fUnsafeCallCount);
+ return umtx_loadAcquire(*callCount);
+}
+
+// Note: toFormat defined in number_asformat.cpp
+
+const DecimalFormatSymbols* LocalizedNumberFormatter::getDecimalFormatSymbols() const {
+ return fMacros.symbols.getDecimalFormatSymbols();
+}
+
+#if (U_PF_WINDOWS <= U_PLATFORM && U_PLATFORM <= U_PF_CYGWIN) && defined(_MSC_VER)
+// Warning 4661.
+#pragma warning(pop)
+#endif
+
+#endif /* #if !UCONFIG_NO_FORMATTING */