// Copyright 2016 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. #include "src/builtins/builtins-utils-inl.h" #include "src/builtins/builtins.h" #include "src/codegen/code-factory.h" #include "src/date/date.h" #include "src/date/dateparser-inl.h" #include "src/logging/counters.h" #include "src/numbers/conversions.h" #include "src/objects/objects-inl.h" #ifdef V8_INTL_SUPPORT #include "src/objects/intl-objects.h" #include "src/objects/js-date-time-format.h" #endif #include "src/strings/string-stream.h" namespace v8 { namespace internal { // ----------------------------------------------------------------------------- // ES6 section 20.3 Date Objects namespace { // ES6 section 20.3.1.1 Time Values and Time Range const double kMinYear = -1000000.0; const double kMaxYear = -kMinYear; const double kMinMonth = -10000000.0; const double kMaxMonth = -kMinMonth; // 20.3.1.2 Day Number and Time within Day const double kMsPerDay = 86400000.0; // ES6 section 20.3.1.11 Hours, Minutes, Second, and Milliseconds const double kMsPerSecond = 1000.0; const double kMsPerMinute = 60000.0; const double kMsPerHour = 3600000.0; // ES6 section 20.3.1.14 MakeDate (day, time) double MakeDate(double day, double time) { if (std::isfinite(day) && std::isfinite(time)) { return time + day * kMsPerDay; } return std::numeric_limits<double>::quiet_NaN(); } // ES6 section 20.3.1.13 MakeDay (year, month, date) double MakeDay(double year, double month, double date) { if ((kMinYear <= year && year <= kMaxYear) && (kMinMonth <= month && month <= kMaxMonth) && std::isfinite(date)) { int y = FastD2I(year); int m = FastD2I(month); y += m / 12; m %= 12; if (m < 0) { m += 12; y -= 1; } DCHECK_LE(0, m); DCHECK_LT(m, 12); // kYearDelta is an arbitrary number such that: // a) kYearDelta = -1 (mod 400) // b) year + kYearDelta > 0 for years in the range defined by // ECMA 262 - 15.9.1.1, i.e. upto 100,000,000 days on either side of // Jan 1 1970. This is required so that we don't run into integer // division of negative numbers. // c) there shouldn't be an overflow for 32-bit integers in the following // operations. static const int kYearDelta = 399999; static const int kBaseDay = 365 * (1970 + kYearDelta) + (1970 + kYearDelta) / 4 - (1970 + kYearDelta) / 100 + (1970 + kYearDelta) / 400; int day_from_year = 365 * (y + kYearDelta) + (y + kYearDelta) / 4 - (y + kYearDelta) / 100 + (y + kYearDelta) / 400 - kBaseDay; if ((y % 4 != 0) || (y % 100 == 0 && y % 400 != 0)) { static const int kDayFromMonth[] = {0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334}; day_from_year += kDayFromMonth[m]; } else { static const int kDayFromMonth[] = {0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335}; day_from_year += kDayFromMonth[m]; } return static_cast<double>(day_from_year - 1) + DoubleToInteger(date); } return std::numeric_limits<double>::quiet_NaN(); } // ES6 section 20.3.1.12 MakeTime (hour, min, sec, ms) double MakeTime(double hour, double min, double sec, double ms) { if (std::isfinite(hour) && std::isfinite(min) && std::isfinite(sec) && std::isfinite(ms)) { double const h = DoubleToInteger(hour); double const m = DoubleToInteger(min); double const s = DoubleToInteger(sec); double const milli = DoubleToInteger(ms); return h * kMsPerHour + m * kMsPerMinute + s * kMsPerSecond + milli; } return std::numeric_limits<double>::quiet_NaN(); } const char* kShortWeekDays[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"}; const char* kShortMonths[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"}; // ES6 section 20.3.1.16 Date Time String Format double ParseDateTimeString(Isolate* isolate, Handle<String> str) { str = String::Flatten(isolate, str); double out[DateParser::OUTPUT_SIZE]; DisallowHeapAllocation no_gc; String::FlatContent str_content = str->GetFlatContent(no_gc); bool result; if (str_content.IsOneByte()) { result = DateParser::Parse(isolate, str_content.ToOneByteVector(), out); } else { result = DateParser::Parse(isolate, str_content.ToUC16Vector(), out); } if (!result) return std::numeric_limits<double>::quiet_NaN(); double const day = MakeDay(out[DateParser::YEAR], out[DateParser::MONTH], out[DateParser::DAY]); double const time = MakeTime(out[DateParser::HOUR], out[DateParser::MINUTE], out[DateParser::SECOND], out[DateParser::MILLISECOND]); double date = MakeDate(day, time); if (std::isnan(out[DateParser::UTC_OFFSET])) { if (date >= -DateCache::kMaxTimeBeforeUTCInMs && date <= DateCache::kMaxTimeBeforeUTCInMs) { date = isolate->date_cache()->ToUTC(static_cast<int64_t>(date)); } else { return std::numeric_limits<double>::quiet_NaN(); } } else { date -= out[DateParser::UTC_OFFSET] * 1000.0; } return DateCache::TimeClip(date); } enum ToDateStringMode { kDateOnly, kTimeOnly, kDateAndTime }; using DateBuffer = base::SmallVector<char, 128>; template <class... Args> DateBuffer FormatDate(const char* format, Args... args) { DateBuffer buffer; SmallStringOptimizedAllocator<DateBuffer::kInlineSize> allocator(&buffer); StringStream sstream(&allocator); sstream.Add(format, args...); buffer.resize_no_init(sstream.length()); return buffer; } // ES6 section 20.3.4.41.1 ToDateString(tv) DateBuffer ToDateString(double time_val, DateCache* date_cache, ToDateStringMode mode = kDateAndTime) { if (std::isnan(time_val)) { return FormatDate("Invalid Date"); } int64_t time_ms = static_cast<int64_t>(time_val); int64_t local_time_ms = date_cache->ToLocal(time_ms); int year, month, day, weekday, hour, min, sec, ms; date_cache->BreakDownTime(local_time_ms, &year, &month, &day, &weekday, &hour, &min, &sec, &ms); int timezone_offset = -date_cache->TimezoneOffset(time_ms); int timezone_hour = std::abs(timezone_offset) / 60; int timezone_min = std::abs(timezone_offset) % 60; const char* local_timezone = date_cache->LocalTimezone(time_ms); switch (mode) { case kDateOnly: return FormatDate((year < 0) ? "%s %s %02d %05d" : "%s %s %02d %04d", kShortWeekDays[weekday], kShortMonths[month], day, year); case kTimeOnly: return FormatDate("%02d:%02d:%02d GMT%c%02d%02d (%s)", hour, min, sec, (timezone_offset < 0) ? '-' : '+', timezone_hour, timezone_min, local_timezone); case kDateAndTime: return FormatDate( (year < 0) ? "%s %s %02d %05d %02d:%02d:%02d GMT%c%02d%02d (%s)" : "%s %s %02d %04d %02d:%02d:%02d GMT%c%02d%02d (%s)", kShortWeekDays[weekday], kShortMonths[month], day, year, hour, min, sec, (timezone_offset < 0) ? '-' : '+', timezone_hour, timezone_min, local_timezone); } UNREACHABLE(); } Object SetLocalDateValue(Isolate* isolate, Handle<JSDate> date, double time_val) { if (time_val >= -DateCache::kMaxTimeBeforeUTCInMs && time_val <= DateCache::kMaxTimeBeforeUTCInMs) { time_val = isolate->date_cache()->ToUTC(static_cast<int64_t>(time_val)); } else { time_val = std::numeric_limits<double>::quiet_NaN(); } return *JSDate::SetValue(date, DateCache::TimeClip(time_val)); } } // namespace // ES #sec-date-constructor BUILTIN(DateConstructor) { HandleScope scope(isolate); if (args.new_target()->IsUndefined(isolate)) { double const time_val = JSDate::CurrentTimeValue(isolate); DateBuffer buffer = ToDateString(time_val, isolate->date_cache()); RETURN_RESULT_OR_FAILURE( isolate, isolate->factory()->NewStringFromUtf8(VectorOf(buffer))); } // [Construct] int const argc = args.length() - 1; Handle<JSFunction> target = args.target(); Handle<JSReceiver> new_target = Handle<JSReceiver>::cast(args.new_target()); double time_val; if (argc == 0) { time_val = JSDate::CurrentTimeValue(isolate); } else if (argc == 1) { Handle<Object> value = args.at(1); if (value->IsJSDate()) { time_val = Handle<JSDate>::cast(value)->value().Number(); } else { ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, value, Object::ToPrimitive(value)); if (value->IsString()) { time_val = ParseDateTimeString(isolate, Handle<String>::cast(value)); } else { ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, value, Object::ToNumber(isolate, value)); time_val = value->Number(); } } } else { Handle<Object> year_object; ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, year_object, Object::ToNumber(isolate, args.at(1))); Handle<Object> month_object; ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, month_object, Object::ToNumber(isolate, args.at(2))); double year = year_object->Number(); double month = month_object->Number(); double date = 1.0, hours = 0.0, minutes = 0.0, seconds = 0.0, ms = 0.0; if (argc >= 3) { Handle<Object> date_object; ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, date_object, Object::ToNumber(isolate, args.at(3))); date = date_object->Number(); if (argc >= 4) { Handle<Object> hours_object; ASSIGN_RETURN_FAILURE_ON_EXCEPTION( isolate, hours_object, Object::ToNumber(isolate, args.at(4))); hours = hours_object->Number(); if (argc >= 5) { Handle<Object> minutes_object; ASSIGN_RETURN_FAILURE_ON_EXCEPTION( isolate, minutes_object, Object::ToNumber(isolate, args.at(5))); minutes = minutes_object->Number(); if (argc >= 6) { Handle<Object> seconds_object; ASSIGN_RETURN_FAILURE_ON_EXCEPTION( isolate, seconds_object, Object::ToNumber(isolate, args.at(6))); seconds = seconds_object->Number(); if (argc >= 7) { Handle<Object> ms_object; ASSIGN_RETURN_FAILURE_ON_EXCEPTION( isolate, ms_object, Object::ToNumber(isolate, args.at(7))); ms = ms_object->Number(); } } } } } if (!std::isnan(year)) { double const y = DoubleToInteger(year); if (0.0 <= y && y <= 99) year = 1900 + y; } double const day = MakeDay(year, month, date); double const time = MakeTime(hours, minutes, seconds, ms); time_val = MakeDate(day, time); if (time_val >= -DateCache::kMaxTimeBeforeUTCInMs && time_val <= DateCache::kMaxTimeBeforeUTCInMs) { time_val = isolate->date_cache()->ToUTC(static_cast<int64_t>(time_val)); } else { time_val = std::numeric_limits<double>::quiet_NaN(); } } RETURN_RESULT_OR_FAILURE(isolate, JSDate::New(target, new_target, time_val)); } // ES6 section 20.3.3.1 Date.now ( ) BUILTIN(DateNow) { HandleScope scope(isolate); return *isolate->factory()->NewNumber(JSDate::CurrentTimeValue(isolate)); } // ES6 section 20.3.3.2 Date.parse ( string ) BUILTIN(DateParse) { HandleScope scope(isolate); Handle<String> string; ASSIGN_RETURN_FAILURE_ON_EXCEPTION( isolate, string, Object::ToString(isolate, args.atOrUndefined(isolate, 1))); return *isolate->factory()->NewNumber(ParseDateTimeString(isolate, string)); } // ES6 section 20.3.3.4 Date.UTC (year,month,date,hours,minutes,seconds,ms) BUILTIN(DateUTC) { HandleScope scope(isolate); int const argc = args.length() - 1; double year = std::numeric_limits<double>::quiet_NaN(); double month = 0.0, date = 1.0, hours = 0.0, minutes = 0.0, seconds = 0.0, ms = 0.0; if (argc >= 1) { Handle<Object> year_object; ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, year_object, Object::ToNumber(isolate, args.at(1))); year = year_object->Number(); if (argc >= 2) { Handle<Object> month_object; ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, month_object, Object::ToNumber(isolate, args.at(2))); month = month_object->Number(); if (argc >= 3) { Handle<Object> date_object; ASSIGN_RETURN_FAILURE_ON_EXCEPTION( isolate, date_object, Object::ToNumber(isolate, args.at(3))); date = date_object->Number(); if (argc >= 4) { Handle<Object> hours_object; ASSIGN_RETURN_FAILURE_ON_EXCEPTION( isolate, hours_object, Object::ToNumber(isolate, args.at(4))); hours = hours_object->Number(); if (argc >= 5) { Handle<Object> minutes_object; ASSIGN_RETURN_FAILURE_ON_EXCEPTION( isolate, minutes_object, Object::ToNumber(isolate, args.at(5))); minutes = minutes_object->Number(); if (argc >= 6) { Handle<Object> seconds_object; ASSIGN_RETURN_FAILURE_ON_EXCEPTION( isolate, seconds_object, Object::ToNumber(isolate, args.at(6))); seconds = seconds_object->Number(); if (argc >= 7) { Handle<Object> ms_object; ASSIGN_RETURN_FAILURE_ON_EXCEPTION( isolate, ms_object, Object::ToNumber(isolate, args.at(7))); ms = ms_object->Number(); } } } } } } } if (!std::isnan(year)) { double const y = DoubleToInteger(year); if (0.0 <= y && y <= 99) year = 1900 + y; } double const day = MakeDay(year, month, date); double const time = MakeTime(hours, minutes, seconds, ms); return *isolate->factory()->NewNumber( DateCache::TimeClip(MakeDate(day, time))); } // ES6 section 20.3.4.20 Date.prototype.setDate ( date ) BUILTIN(DatePrototypeSetDate) { HandleScope scope(isolate); CHECK_RECEIVER(JSDate, date, "Date.prototype.setDate"); Handle<Object> value = args.atOrUndefined(isolate, 1); ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, value, Object::ToNumber(isolate, value)); double time_val = date->value().Number(); if (!std::isnan(time_val)) { int64_t const time_ms = static_cast<int64_t>(time_val); int64_t local_time_ms = isolate->date_cache()->ToLocal(time_ms); int const days = isolate->date_cache()->DaysFromTime(local_time_ms); int time_within_day = isolate->date_cache()->TimeInDay(local_time_ms, days); int year, month, day; isolate->date_cache()->YearMonthDayFromDays(days, &year, &month, &day); time_val = MakeDate(MakeDay(year, month, value->Number()), time_within_day); } return SetLocalDateValue(isolate, date, time_val); } // ES6 section 20.3.4.21 Date.prototype.setFullYear (year, month, date) BUILTIN(DatePrototypeSetFullYear) { HandleScope scope(isolate); CHECK_RECEIVER(JSDate, date, "Date.prototype.setFullYear"); int const argc = args.length() - 1; Handle<Object> year = args.atOrUndefined(isolate, 1); ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, year, Object::ToNumber(isolate, year)); double y = year->Number(), m = 0.0, dt = 1.0; int time_within_day = 0; if (!std::isnan(date->value().Number())) { int64_t const time_ms = static_cast<int64_t>(date->value().Number()); int64_t local_time_ms = isolate->date_cache()->ToLocal(time_ms); int const days = isolate->date_cache()->DaysFromTime(local_time_ms); time_within_day = isolate->date_cache()->TimeInDay(local_time_ms, days); int year, month, day; isolate->date_cache()->YearMonthDayFromDays(days, &year, &month, &day); m = month; dt = day; } if (argc >= 2) { Handle<Object> month = args.at(2); ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, month, Object::ToNumber(isolate, month)); m = month->Number(); if (argc >= 3) { Handle<Object> date = args.at(3); ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, date, Object::ToNumber(isolate, date)); dt = date->Number(); } } double time_val = MakeDate(MakeDay(y, m, dt), time_within_day); return SetLocalDateValue(isolate, date, time_val); } // ES6 section 20.3.4.22 Date.prototype.setHours(hour, min, sec, ms) BUILTIN(DatePrototypeSetHours) { HandleScope scope(isolate); CHECK_RECEIVER(JSDate, date, "Date.prototype.setHours"); int const argc = args.length() - 1; Handle<Object> hour = args.atOrUndefined(isolate, 1); ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, hour, Object::ToNumber(isolate, hour)); double h = hour->Number(); double time_val = date->value().Number(); if (!std::isnan(time_val)) { int64_t const time_ms = static_cast<int64_t>(time_val); int64_t local_time_ms = isolate->date_cache()->ToLocal(time_ms); int day = isolate->date_cache()->DaysFromTime(local_time_ms); int time_within_day = isolate->date_cache()->TimeInDay(local_time_ms, day); double m = (time_within_day / (60 * 1000)) % 60; double s = (time_within_day / 1000) % 60; double milli = time_within_day % 1000; if (argc >= 2) { Handle<Object> min = args.at(2); ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, min, Object::ToNumber(isolate, min)); m = min->Number(); if (argc >= 3) { Handle<Object> sec = args.at(3); ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, sec, Object::ToNumber(isolate, sec)); s = sec->Number(); if (argc >= 4) { Handle<Object> ms = args.at(4); ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, ms, Object::ToNumber(isolate, ms)); milli = ms->Number(); } } } time_val = MakeDate(day, MakeTime(h, m, s, milli)); } return SetLocalDateValue(isolate, date, time_val); } // ES6 section 20.3.4.23 Date.prototype.setMilliseconds(ms) BUILTIN(DatePrototypeSetMilliseconds) { HandleScope scope(isolate); CHECK_RECEIVER(JSDate, date, "Date.prototype.setMilliseconds"); Handle<Object> ms = args.atOrUndefined(isolate, 1); ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, ms, Object::ToNumber(isolate, ms)); double time_val = date->value().Number(); if (!std::isnan(time_val)) { int64_t const time_ms = static_cast<int64_t>(time_val); int64_t local_time_ms = isolate->date_cache()->ToLocal(time_ms); int day = isolate->date_cache()->DaysFromTime(local_time_ms); int time_within_day = isolate->date_cache()->TimeInDay(local_time_ms, day); int h = time_within_day / (60 * 60 * 1000); int m = (time_within_day / (60 * 1000)) % 60; int s = (time_within_day / 1000) % 60; time_val = MakeDate(day, MakeTime(h, m, s, ms->Number())); } return SetLocalDateValue(isolate, date, time_val); } // ES6 section 20.3.4.24 Date.prototype.setMinutes ( min, sec, ms ) BUILTIN(DatePrototypeSetMinutes) { HandleScope scope(isolate); CHECK_RECEIVER(JSDate, date, "Date.prototype.setMinutes"); int const argc = args.length() - 1; Handle<Object> min = args.atOrUndefined(isolate, 1); ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, min, Object::ToNumber(isolate, min)); double time_val = date->value().Number(); if (!std::isnan(time_val)) { int64_t const time_ms = static_cast<int64_t>(time_val); int64_t local_time_ms = isolate->date_cache()->ToLocal(time_ms); int day = isolate->date_cache()->DaysFromTime(local_time_ms); int time_within_day = isolate->date_cache()->TimeInDay(local_time_ms, day); int h = time_within_day / (60 * 60 * 1000); double m = min->Number(); double s = (time_within_day / 1000) % 60; double milli = time_within_day % 1000; if (argc >= 2) { Handle<Object> sec = args.at(2); ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, sec, Object::ToNumber(isolate, sec)); s = sec->Number(); if (argc >= 3) { Handle<Object> ms = args.at(3); ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, ms, Object::ToNumber(isolate, ms)); milli = ms->Number(); } } time_val = MakeDate(day, MakeTime(h, m, s, milli)); } return SetLocalDateValue(isolate, date, time_val); } // ES6 section 20.3.4.25 Date.prototype.setMonth ( month, date ) BUILTIN(DatePrototypeSetMonth) { HandleScope scope(isolate); CHECK_RECEIVER(JSDate, date, "Date.prototype.setMonth"); int const argc = args.length() - 1; Handle<Object> month = args.atOrUndefined(isolate, 1); ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, month, Object::ToNumber(isolate, month)); double time_val = date->value().Number(); if (!std::isnan(time_val)) { int64_t const time_ms = static_cast<int64_t>(time_val); int64_t local_time_ms = isolate->date_cache()->ToLocal(time_ms); int days = isolate->date_cache()->DaysFromTime(local_time_ms); int time_within_day = isolate->date_cache()->TimeInDay(local_time_ms, days); int year, unused, day; isolate->date_cache()->YearMonthDayFromDays(days, &year, &unused, &day); double m = month->Number(); double dt = day; if (argc >= 2) { Handle<Object> date = args.at(2); ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, date, Object::ToNumber(isolate, date)); dt = date->Number(); } time_val = MakeDate(MakeDay(year, m, dt), time_within_day); } return SetLocalDateValue(isolate, date, time_val); } // ES6 section 20.3.4.26 Date.prototype.setSeconds ( sec, ms ) BUILTIN(DatePrototypeSetSeconds) { HandleScope scope(isolate); CHECK_RECEIVER(JSDate, date, "Date.prototype.setSeconds"); int const argc = args.length() - 1; Handle<Object> sec = args.atOrUndefined(isolate, 1); ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, sec, Object::ToNumber(isolate, sec)); double time_val = date->value().Number(); if (!std::isnan(time_val)) { int64_t const time_ms = static_cast<int64_t>(time_val); int64_t local_time_ms = isolate->date_cache()->ToLocal(time_ms); int day = isolate->date_cache()->DaysFromTime(local_time_ms); int time_within_day = isolate->date_cache()->TimeInDay(local_time_ms, day); int h = time_within_day / (60 * 60 * 1000); double m = (time_within_day / (60 * 1000)) % 60; double s = sec->Number(); double milli = time_within_day % 1000; if (argc >= 2) { Handle<Object> ms = args.at(2); ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, ms, Object::ToNumber(isolate, ms)); milli = ms->Number(); } time_val = MakeDate(day, MakeTime(h, m, s, milli)); } return SetLocalDateValue(isolate, date, time_val); } // ES6 section 20.3.4.27 Date.prototype.setTime ( time ) BUILTIN(DatePrototypeSetTime) { HandleScope scope(isolate); CHECK_RECEIVER(JSDate, date, "Date.prototype.setTime"); Handle<Object> value = args.atOrUndefined(isolate, 1); ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, value, Object::ToNumber(isolate, value)); return *JSDate::SetValue(date, DateCache::TimeClip(value->Number())); } // ES6 section 20.3.4.28 Date.prototype.setUTCDate ( date ) BUILTIN(DatePrototypeSetUTCDate) { HandleScope scope(isolate); CHECK_RECEIVER(JSDate, date, "Date.prototype.setUTCDate"); Handle<Object> value = args.atOrUndefined(isolate, 1); ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, value, Object::ToNumber(isolate, value)); if (std::isnan(date->value().Number())) return date->value(); int64_t const time_ms = static_cast<int64_t>(date->value().Number()); int const days = isolate->date_cache()->DaysFromTime(time_ms); int const time_within_day = isolate->date_cache()->TimeInDay(time_ms, days); int year, month, day; isolate->date_cache()->YearMonthDayFromDays(days, &year, &month, &day); double const time_val = MakeDate(MakeDay(year, month, value->Number()), time_within_day); return *JSDate::SetValue(date, DateCache::TimeClip(time_val)); } // ES6 section 20.3.4.29 Date.prototype.setUTCFullYear (year, month, date) BUILTIN(DatePrototypeSetUTCFullYear) { HandleScope scope(isolate); CHECK_RECEIVER(JSDate, date, "Date.prototype.setUTCFullYear"); int const argc = args.length() - 1; Handle<Object> year = args.atOrUndefined(isolate, 1); ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, year, Object::ToNumber(isolate, year)); double y = year->Number(), m = 0.0, dt = 1.0; int time_within_day = 0; if (!std::isnan(date->value().Number())) { int64_t const time_ms = static_cast<int64_t>(date->value().Number()); int const days = isolate->date_cache()->DaysFromTime(time_ms); time_within_day = isolate->date_cache()->TimeInDay(time_ms, days); int year, month, day; isolate->date_cache()->YearMonthDayFromDays(days, &year, &month, &day); m = month; dt = day; } if (argc >= 2) { Handle<Object> month = args.at(2); ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, month, Object::ToNumber(isolate, month)); m = month->Number(); if (argc >= 3) { Handle<Object> date = args.at(3); ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, date, Object::ToNumber(isolate, date)); dt = date->Number(); } } double const time_val = MakeDate(MakeDay(y, m, dt), time_within_day); return *JSDate::SetValue(date, DateCache::TimeClip(time_val)); } // ES6 section 20.3.4.30 Date.prototype.setUTCHours(hour, min, sec, ms) BUILTIN(DatePrototypeSetUTCHours) { HandleScope scope(isolate); CHECK_RECEIVER(JSDate, date, "Date.prototype.setUTCHours"); int const argc = args.length() - 1; Handle<Object> hour = args.atOrUndefined(isolate, 1); ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, hour, Object::ToNumber(isolate, hour)); double h = hour->Number(); double time_val = date->value().Number(); if (!std::isnan(time_val)) { int64_t const time_ms = static_cast<int64_t>(time_val); int day = isolate->date_cache()->DaysFromTime(time_ms); int time_within_day = isolate->date_cache()->TimeInDay(time_ms, day); double m = (time_within_day / (60 * 1000)) % 60; double s = (time_within_day / 1000) % 60; double milli = time_within_day % 1000; if (argc >= 2) { Handle<Object> min = args.at(2); ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, min, Object::ToNumber(isolate, min)); m = min->Number(); if (argc >= 3) { Handle<Object> sec = args.at(3); ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, sec, Object::ToNumber(isolate, sec)); s = sec->Number(); if (argc >= 4) { Handle<Object> ms = args.at(4); ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, ms, Object::ToNumber(isolate, ms)); milli = ms->Number(); } } } time_val = MakeDate(day, MakeTime(h, m, s, milli)); } return *JSDate::SetValue(date, DateCache::TimeClip(time_val)); } // ES6 section 20.3.4.31 Date.prototype.setUTCMilliseconds(ms) BUILTIN(DatePrototypeSetUTCMilliseconds) { HandleScope scope(isolate); CHECK_RECEIVER(JSDate, date, "Date.prototype.setUTCMilliseconds"); Handle<Object> ms = args.atOrUndefined(isolate, 1); ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, ms, Object::ToNumber(isolate, ms)); double time_val = date->value().Number(); if (!std::isnan(time_val)) { int64_t const time_ms = static_cast<int64_t>(time_val); int day = isolate->date_cache()->DaysFromTime(time_ms); int time_within_day = isolate->date_cache()->TimeInDay(time_ms, day); int h = time_within_day / (60 * 60 * 1000); int m = (time_within_day / (60 * 1000)) % 60; int s = (time_within_day / 1000) % 60; time_val = MakeDate(day, MakeTime(h, m, s, ms->Number())); } return *JSDate::SetValue(date, DateCache::TimeClip(time_val)); } // ES6 section 20.3.4.32 Date.prototype.setUTCMinutes ( min, sec, ms ) BUILTIN(DatePrototypeSetUTCMinutes) { HandleScope scope(isolate); CHECK_RECEIVER(JSDate, date, "Date.prototype.setUTCMinutes"); int const argc = args.length() - 1; Handle<Object> min = args.atOrUndefined(isolate, 1); ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, min, Object::ToNumber(isolate, min)); double time_val = date->value().Number(); if (!std::isnan(time_val)) { int64_t const time_ms = static_cast<int64_t>(time_val); int day = isolate->date_cache()->DaysFromTime(time_ms); int time_within_day = isolate->date_cache()->TimeInDay(time_ms, day); int h = time_within_day / (60 * 60 * 1000); double m = min->Number(); double s = (time_within_day / 1000) % 60; double milli = time_within_day % 1000; if (argc >= 2) { Handle<Object> sec = args.at(2); ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, sec, Object::ToNumber(isolate, sec)); s = sec->Number(); if (argc >= 3) { Handle<Object> ms = args.at(3); ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, ms, Object::ToNumber(isolate, ms)); milli = ms->Number(); } } time_val = MakeDate(day, MakeTime(h, m, s, milli)); } return *JSDate::SetValue(date, DateCache::TimeClip(time_val)); } // ES6 section 20.3.4.31 Date.prototype.setUTCMonth ( month, date ) BUILTIN(DatePrototypeSetUTCMonth) { HandleScope scope(isolate); CHECK_RECEIVER(JSDate, date, "Date.prototype.setUTCMonth"); int const argc = args.length() - 1; Handle<Object> month = args.atOrUndefined(isolate, 1); ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, month, Object::ToNumber(isolate, month)); double time_val = date->value().Number(); if (!std::isnan(time_val)) { int64_t const time_ms = static_cast<int64_t>(time_val); int days = isolate->date_cache()->DaysFromTime(time_ms); int time_within_day = isolate->date_cache()->TimeInDay(time_ms, days); int year, unused, day; isolate->date_cache()->YearMonthDayFromDays(days, &year, &unused, &day); double m = month->Number(); double dt = day; if (argc >= 2) { Handle<Object> date = args.at(2); ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, date, Object::ToNumber(isolate, date)); dt = date->Number(); } time_val = MakeDate(MakeDay(year, m, dt), time_within_day); } return *JSDate::SetValue(date, DateCache::TimeClip(time_val)); } // ES6 section 20.3.4.34 Date.prototype.setUTCSeconds ( sec, ms ) BUILTIN(DatePrototypeSetUTCSeconds) { HandleScope scope(isolate); CHECK_RECEIVER(JSDate, date, "Date.prototype.setUTCSeconds"); int const argc = args.length() - 1; Handle<Object> sec = args.atOrUndefined(isolate, 1); ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, sec, Object::ToNumber(isolate, sec)); double time_val = date->value().Number(); if (!std::isnan(time_val)) { int64_t const time_ms = static_cast<int64_t>(time_val); int day = isolate->date_cache()->DaysFromTime(time_ms); int time_within_day = isolate->date_cache()->TimeInDay(time_ms, day); int h = time_within_day / (60 * 60 * 1000); double m = (time_within_day / (60 * 1000)) % 60; double s = sec->Number(); double milli = time_within_day % 1000; if (argc >= 2) { Handle<Object> ms = args.at(2); ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, ms, Object::ToNumber(isolate, ms)); milli = ms->Number(); } time_val = MakeDate(day, MakeTime(h, m, s, milli)); } return *JSDate::SetValue(date, DateCache::TimeClip(time_val)); } // ES6 section 20.3.4.35 Date.prototype.toDateString ( ) BUILTIN(DatePrototypeToDateString) { HandleScope scope(isolate); CHECK_RECEIVER(JSDate, date, "Date.prototype.toDateString"); DateBuffer buffer = ToDateString(date->value().Number(), isolate->date_cache(), kDateOnly); RETURN_RESULT_OR_FAILURE( isolate, isolate->factory()->NewStringFromUtf8(VectorOf(buffer))); } // ES6 section 20.3.4.36 Date.prototype.toISOString ( ) BUILTIN(DatePrototypeToISOString) { HandleScope scope(isolate); CHECK_RECEIVER(JSDate, date, "Date.prototype.toISOString"); double const time_val = date->value().Number(); if (std::isnan(time_val)) { THROW_NEW_ERROR_RETURN_FAILURE( isolate, NewRangeError(MessageTemplate::kInvalidTimeValue)); } int64_t const time_ms = static_cast<int64_t>(time_val); int year, month, day, weekday, hour, min, sec, ms; isolate->date_cache()->BreakDownTime(time_ms, &year, &month, &day, &weekday, &hour, &min, &sec, &ms); char buffer[128]; if (year >= 0 && year <= 9999) { SNPrintF(ArrayVector(buffer), "%04d-%02d-%02dT%02d:%02d:%02d.%03dZ", year, month + 1, day, hour, min, sec, ms); } else if (year < 0) { SNPrintF(ArrayVector(buffer), "-%06d-%02d-%02dT%02d:%02d:%02d.%03dZ", -year, month + 1, day, hour, min, sec, ms); } else { SNPrintF(ArrayVector(buffer), "+%06d-%02d-%02dT%02d:%02d:%02d.%03dZ", year, month + 1, day, hour, min, sec, ms); } return *isolate->factory()->NewStringFromAsciiChecked(buffer); } // ES6 section 20.3.4.41 Date.prototype.toString ( ) BUILTIN(DatePrototypeToString) { HandleScope scope(isolate); CHECK_RECEIVER(JSDate, date, "Date.prototype.toString"); DateBuffer buffer = ToDateString(date->value().Number(), isolate->date_cache()); RETURN_RESULT_OR_FAILURE( isolate, isolate->factory()->NewStringFromUtf8(VectorOf(buffer))); } // ES6 section 20.3.4.42 Date.prototype.toTimeString ( ) BUILTIN(DatePrototypeToTimeString) { HandleScope scope(isolate); CHECK_RECEIVER(JSDate, date, "Date.prototype.toTimeString"); DateBuffer buffer = ToDateString(date->value().Number(), isolate->date_cache(), kTimeOnly); RETURN_RESULT_OR_FAILURE( isolate, isolate->factory()->NewStringFromUtf8(VectorOf(buffer))); } #ifdef V8_INTL_SUPPORT // ecma402 #sup-date.prototype.tolocaledatestring BUILTIN(DatePrototypeToLocaleDateString) { HandleScope scope(isolate); isolate->CountUsage(v8::Isolate::UseCounterFeature::kDateToLocaleDateString); const char* method = "Date.prototype.toLocaleDateString"; CHECK_RECEIVER(JSDate, date, method); RETURN_RESULT_OR_FAILURE( isolate, JSDateTimeFormat::ToLocaleDateTime( isolate, date, // date args.atOrUndefined(isolate, 1), // locales args.atOrUndefined(isolate, 2), // options JSDateTimeFormat::RequiredOption::kDate, // required JSDateTimeFormat::DefaultsOption::kDate, // defaults method)); // method } // ecma402 #sup-date.prototype.tolocalestring BUILTIN(DatePrototypeToLocaleString) { HandleScope scope(isolate); isolate->CountUsage(v8::Isolate::UseCounterFeature::kDateToLocaleString); const char* method = "Date.prototype.toLocaleString"; CHECK_RECEIVER(JSDate, date, method); RETURN_RESULT_OR_FAILURE( isolate, JSDateTimeFormat::ToLocaleDateTime( isolate, date, // date args.atOrUndefined(isolate, 1), // locales args.atOrUndefined(isolate, 2), // options JSDateTimeFormat::RequiredOption::kAny, // required JSDateTimeFormat::DefaultsOption::kAll, // defaults method)); // method } // ecma402 #sup-date.prototype.tolocaletimestring BUILTIN(DatePrototypeToLocaleTimeString) { HandleScope scope(isolate); isolate->CountUsage(v8::Isolate::UseCounterFeature::kDateToLocaleTimeString); const char* method = "Date.prototype.toLocaleTimeString"; CHECK_RECEIVER(JSDate, date, method); RETURN_RESULT_OR_FAILURE( isolate, JSDateTimeFormat::ToLocaleDateTime( isolate, date, // date args.atOrUndefined(isolate, 1), // locales args.atOrUndefined(isolate, 2), // options JSDateTimeFormat::RequiredOption::kTime, // required JSDateTimeFormat::DefaultsOption::kTime, // defaults method)); // method } #endif // V8_INTL_SUPPORT // ES6 section 20.3.4.43 Date.prototype.toUTCString ( ) BUILTIN(DatePrototypeToUTCString) { HandleScope scope(isolate); CHECK_RECEIVER(JSDate, date, "Date.prototype.toUTCString"); double const time_val = date->value().Number(); if (std::isnan(time_val)) { return *isolate->factory()->NewStringFromAsciiChecked("Invalid Date"); } char buffer[128]; int64_t time_ms = static_cast<int64_t>(time_val); int year, month, day, weekday, hour, min, sec, ms; isolate->date_cache()->BreakDownTime(time_ms, &year, &month, &day, &weekday, &hour, &min, &sec, &ms); SNPrintF(ArrayVector(buffer), (year < 0) ? "%s, %02d %s %05d %02d:%02d:%02d GMT" : "%s, %02d %s %04d %02d:%02d:%02d GMT", kShortWeekDays[weekday], day, kShortMonths[month], year, hour, min, sec); return *isolate->factory()->NewStringFromAsciiChecked(buffer); } // ES6 section B.2.4.1 Date.prototype.getYear ( ) BUILTIN(DatePrototypeGetYear) { HandleScope scope(isolate); CHECK_RECEIVER(JSDate, date, "Date.prototype.getYear"); double time_val = date->value().Number(); if (std::isnan(time_val)) return date->value(); int64_t time_ms = static_cast<int64_t>(time_val); int64_t local_time_ms = isolate->date_cache()->ToLocal(time_ms); int days = isolate->date_cache()->DaysFromTime(local_time_ms); int year, month, day; isolate->date_cache()->YearMonthDayFromDays(days, &year, &month, &day); return Smi::FromInt(year - 1900); } // ES6 section B.2.4.2 Date.prototype.setYear ( year ) BUILTIN(DatePrototypeSetYear) { HandleScope scope(isolate); CHECK_RECEIVER(JSDate, date, "Date.prototype.setYear"); Handle<Object> year = args.atOrUndefined(isolate, 1); ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, year, Object::ToNumber(isolate, year)); double m = 0.0, dt = 1.0, y = year->Number(); if (!std::isnan(y)) { double y_int = DoubleToInteger(y); if (0.0 <= y_int && y_int <= 99.0) { y = 1900.0 + y_int; } } int time_within_day = 0; if (!std::isnan(date->value().Number())) { int64_t const time_ms = static_cast<int64_t>(date->value().Number()); int64_t local_time_ms = isolate->date_cache()->ToLocal(time_ms); int const days = isolate->date_cache()->DaysFromTime(local_time_ms); time_within_day = isolate->date_cache()->TimeInDay(local_time_ms, days); int year, month, day; isolate->date_cache()->YearMonthDayFromDays(days, &year, &month, &day); m = month; dt = day; } double time_val = MakeDate(MakeDay(y, m, dt), time_within_day); return SetLocalDateValue(isolate, date, time_val); } // ES6 section 20.3.4.37 Date.prototype.toJSON ( key ) BUILTIN(DatePrototypeToJson) { HandleScope scope(isolate); Handle<Object> receiver = args.atOrUndefined(isolate, 0); Handle<JSReceiver> receiver_obj; ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, receiver_obj, Object::ToObject(isolate, receiver)); Handle<Object> primitive; ASSIGN_RETURN_FAILURE_ON_EXCEPTION( isolate, primitive, Object::ToPrimitive(receiver_obj, ToPrimitiveHint::kNumber)); if (primitive->IsNumber() && !std::isfinite(primitive->Number())) { return ReadOnlyRoots(isolate).null_value(); } else { Handle<String> name = isolate->factory()->NewStringFromAsciiChecked("toISOString"); Handle<Object> function; ASSIGN_RETURN_FAILURE_ON_EXCEPTION( isolate, function, Object::GetProperty(isolate, receiver_obj, name)); if (!function->IsCallable()) { THROW_NEW_ERROR_RETURN_FAILURE( isolate, NewTypeError(MessageTemplate::kCalledNonCallable, name)); } RETURN_RESULT_OR_FAILURE( isolate, Execution::Call(isolate, function, receiver_obj, 0, nullptr)); } } } // namespace internal } // namespace v8