Victor Chang | 978167a | 2021-01-18 17:56:33 +0000 | [diff] [blame] | 1 | // © 2020 and later: Unicode, Inc. and others. |
| 2 | // License & terms of use: http://www.unicode.org/copyright.html |
| 3 | |
| 4 | #include "unicode/utypes.h" |
| 5 | |
| 6 | #if !UCONFIG_NO_FORMATTING |
| 7 | |
| 8 | #include "number_usageprefs.h" |
| 9 | #include "cstring.h" |
| 10 | #include "number_decimalquantity.h" |
| 11 | #include "number_microprops.h" |
| 12 | #include "number_roundingutils.h" |
| 13 | #include "number_skeletons.h" |
| 14 | #include "unicode/char16ptr.h" |
| 15 | #include "unicode/currunit.h" |
| 16 | #include "unicode/fmtable.h" |
| 17 | #include "unicode/measure.h" |
| 18 | #include "unicode/numberformatter.h" |
| 19 | #include "unicode/platform.h" |
| 20 | #include "unicode/unum.h" |
| 21 | #include "unicode/urename.h" |
| 22 | #include "units_data.h" |
| 23 | |
| 24 | using namespace icu; |
| 25 | using namespace icu::number; |
| 26 | using namespace icu::number::impl; |
| 27 | using icu::StringSegment; |
| 28 | using icu::units::ConversionRates; |
| 29 | |
| 30 | // Copy constructor |
| 31 | Usage::Usage(const Usage &other) : Usage() { |
| 32 | this->operator=(other); |
| 33 | } |
| 34 | |
| 35 | // Copy assignment operator |
| 36 | Usage &Usage::operator=(const Usage &other) { |
Victor Chang | 92c98b5 | 2021-04-27 16:37:23 +0100 | [diff] [blame^] | 37 | if (this == &other) { return *this; } // self-assignment: no-op |
Victor Chang | 978167a | 2021-01-18 17:56:33 +0000 | [diff] [blame] | 38 | fLength = 0; |
| 39 | fError = other.fError; |
| 40 | if (fUsage != nullptr) { |
| 41 | uprv_free(fUsage); |
| 42 | fUsage = nullptr; |
| 43 | } |
| 44 | if (other.fUsage == nullptr) { |
| 45 | return *this; |
| 46 | } |
| 47 | if (U_FAILURE(other.fError)) { |
| 48 | // We don't bother trying to allocating memory if we're in any case busy |
| 49 | // copying an errored Usage. |
| 50 | return *this; |
| 51 | } |
| 52 | fUsage = (char *)uprv_malloc(other.fLength + 1); |
| 53 | if (fUsage == nullptr) { |
| 54 | fError = U_MEMORY_ALLOCATION_ERROR; |
| 55 | return *this; |
| 56 | } |
| 57 | fLength = other.fLength; |
| 58 | uprv_strncpy(fUsage, other.fUsage, fLength + 1); |
| 59 | return *this; |
| 60 | } |
| 61 | |
| 62 | // Move constructor |
| 63 | Usage::Usage(Usage &&src) U_NOEXCEPT : fUsage(src.fUsage), fLength(src.fLength), fError(src.fError) { |
| 64 | // Take ownership away from src if necessary |
| 65 | src.fUsage = nullptr; |
| 66 | } |
| 67 | |
| 68 | // Move assignment operator |
| 69 | Usage &Usage::operator=(Usage &&src) U_NOEXCEPT { |
| 70 | if (this == &src) { |
| 71 | return *this; |
| 72 | } |
| 73 | if (fUsage != nullptr) { |
| 74 | uprv_free(fUsage); |
| 75 | } |
| 76 | fUsage = src.fUsage; |
| 77 | fLength = src.fLength; |
| 78 | fError = src.fError; |
| 79 | // Take ownership away from src if necessary |
| 80 | src.fUsage = nullptr; |
| 81 | return *this; |
| 82 | } |
| 83 | |
| 84 | Usage::~Usage() { |
| 85 | if (fUsage != nullptr) { |
| 86 | uprv_free(fUsage); |
| 87 | fUsage = nullptr; |
| 88 | } |
| 89 | } |
| 90 | |
| 91 | void Usage::set(StringPiece value) { |
| 92 | if (fUsage != nullptr) { |
| 93 | uprv_free(fUsage); |
| 94 | fUsage = nullptr; |
| 95 | } |
| 96 | fLength = value.length(); |
| 97 | fUsage = (char *)uprv_malloc(fLength + 1); |
| 98 | if (fUsage == nullptr) { |
| 99 | fLength = 0; |
| 100 | fError = U_MEMORY_ALLOCATION_ERROR; |
| 101 | return; |
| 102 | } |
| 103 | uprv_strncpy(fUsage, value.data(), fLength); |
| 104 | fUsage[fLength] = 0; |
| 105 | } |
| 106 | |
| 107 | // Populates micros.mixedMeasures and modifies quantity, based on the values in |
| 108 | // measures. |
| 109 | void mixedMeasuresToMicros(const MaybeStackVector<Measure> &measures, DecimalQuantity *quantity, |
| 110 | MicroProps *micros, UErrorCode status) { |
| 111 | micros->mixedMeasuresCount = measures.length() - 1; |
| 112 | if (micros->mixedMeasuresCount > 0) { |
| 113 | #ifdef U_DEBUG |
| 114 | U_ASSERT(micros->outputUnit.getComplexity(status) == UMEASURE_UNIT_MIXED); |
| 115 | U_ASSERT(U_SUCCESS(status)); |
| 116 | // Check that we received measurements with the expected MeasureUnits: |
| 117 | MeasureUnitImpl temp; |
| 118 | const MeasureUnitImpl& impl = MeasureUnitImpl::forMeasureUnit(micros->outputUnit, temp, status); |
| 119 | U_ASSERT(U_SUCCESS(status)); |
| 120 | U_ASSERT(measures.length() == impl.units.length()); |
| 121 | for (int32_t i = 0; i < measures.length(); i++) { |
| 122 | U_ASSERT(measures[i]->getUnit() == impl.units[i]->build(status)); |
| 123 | } |
| 124 | (void)impl; |
| 125 | #endif |
| 126 | // Mixed units: except for the last value, we pass all values to the |
| 127 | // LongNameHandler via micros->mixedMeasures. |
| 128 | if (micros->mixedMeasures.getCapacity() < micros->mixedMeasuresCount) { |
| 129 | if (micros->mixedMeasures.resize(micros->mixedMeasuresCount) == nullptr) { |
| 130 | status = U_MEMORY_ALLOCATION_ERROR; |
| 131 | return; |
| 132 | } |
| 133 | } |
| 134 | for (int32_t i = 0; i < micros->mixedMeasuresCount; i++) { |
| 135 | micros->mixedMeasures[i] = measures[i]->getNumber().getInt64(); |
| 136 | } |
| 137 | } else { |
| 138 | micros->mixedMeasuresCount = 0; |
| 139 | } |
| 140 | // The last value (potentially the only value) gets passed on via quantity. |
| 141 | quantity->setToDouble(measures[measures.length() - 1]->getNumber().getDouble()); |
| 142 | } |
| 143 | |
| 144 | UsagePrefsHandler::UsagePrefsHandler(const Locale &locale, |
| 145 | const MeasureUnit &inputUnit, |
| 146 | const StringPiece usage, |
| 147 | const MicroPropsGenerator *parent, |
| 148 | UErrorCode &status) |
| 149 | : fUnitsRouter(inputUnit, StringPiece(locale.getCountry()), usage, status), |
| 150 | fParent(parent) { |
| 151 | } |
| 152 | |
| 153 | void UsagePrefsHandler::processQuantity(DecimalQuantity &quantity, MicroProps µs, |
| 154 | UErrorCode &status) const { |
| 155 | fParent->processQuantity(quantity, micros, status); |
| 156 | if (U_FAILURE(status)) { |
| 157 | return; |
| 158 | } |
| 159 | |
| 160 | quantity.roundToInfinity(); // Enables toDouble |
| 161 | const units::RouteResult routed = fUnitsRouter.route(quantity.toDouble(), µs.rounder, status); |
| 162 | if (U_FAILURE(status)) { |
| 163 | return; |
| 164 | } |
| 165 | const MaybeStackVector<Measure>& routedMeasures = routed.measures; |
| 166 | micros.outputUnit = routed.outputUnit.copy(status).build(status); |
| 167 | if (U_FAILURE(status)) { |
| 168 | return; |
| 169 | } |
| 170 | |
| 171 | mixedMeasuresToMicros(routedMeasures, &quantity, µs, status); |
| 172 | } |
| 173 | |
| 174 | UnitConversionHandler::UnitConversionHandler(const MeasureUnit &inputUnit, const MeasureUnit &outputUnit, |
| 175 | const MicroPropsGenerator *parent, UErrorCode &status) |
| 176 | : fOutputUnit(outputUnit), fParent(parent) { |
| 177 | MeasureUnitImpl tempInput, tempOutput; |
| 178 | const MeasureUnitImpl &inputUnitImpl = MeasureUnitImpl::forMeasureUnit(inputUnit, tempInput, status); |
| 179 | const MeasureUnitImpl &outputUnitImpl = |
| 180 | MeasureUnitImpl::forMeasureUnit(outputUnit, tempOutput, status); |
| 181 | |
| 182 | // TODO: this should become an initOnce thing? Review with other |
| 183 | // ConversionRates usages. |
| 184 | ConversionRates conversionRates(status); |
| 185 | if (U_FAILURE(status)) { |
| 186 | return; |
| 187 | } |
| 188 | fUnitConverter.adoptInsteadAndCheckErrorCode( |
| 189 | new ComplexUnitsConverter(inputUnitImpl, outputUnitImpl, conversionRates, status), status); |
| 190 | } |
| 191 | |
| 192 | void UnitConversionHandler::processQuantity(DecimalQuantity &quantity, MicroProps µs, |
| 193 | UErrorCode &status) const { |
| 194 | fParent->processQuantity(quantity, micros, status); |
| 195 | if (U_FAILURE(status)) { |
| 196 | return; |
| 197 | } |
| 198 | quantity.roundToInfinity(); // Enables toDouble |
| 199 | MaybeStackVector<Measure> measures = |
| 200 | fUnitConverter->convert(quantity.toDouble(), µs.rounder, status); |
| 201 | micros.outputUnit = fOutputUnit; |
| 202 | if (U_FAILURE(status)) { |
| 203 | return; |
| 204 | } |
| 205 | |
| 206 | mixedMeasuresToMicros(measures, &quantity, µs, status); |
| 207 | } |
| 208 | |
| 209 | #endif /* #if !UCONFIG_NO_FORMATTING */ |