// 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.h"
#include "src/builtins/builtins.h"
#include "src/code-factory.h"
#include "src/code-stub-assembler.h"
#include "src/conversions.h"
#include "src/counters.h"
#include "src/dateparser-inl.h"
#include "src/objects-inl.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) + 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();
}
// ES6 section 20.3.1.15 TimeClip (time)
double TimeClip(double time) {
if (-DateCache::kMaxTimeInMs <= time && time <= DateCache::kMaxTimeInMs) {
return DoubleToInteger(time) + 0.0;
}
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(Handle<String> str) {
Isolate* const isolate = str->GetIsolate();
str = String::Flatten(str);
// TODO(bmeurer): Change DateParser to not use the FixedArray.
Handle<FixedArray> tmp =
isolate->factory()->NewFixedArray(DateParser::OUTPUT_SIZE);
DisallowHeapAllocation no_gc;
String::FlatContent str_content = str->GetFlatContent();
bool result;
if (str_content.IsOneByte()) {
result = DateParser::Parse(isolate, str_content.ToOneByteVector(), *tmp);
} else {
result = DateParser::Parse(isolate, str_content.ToUC16Vector(), *tmp);
}
if (!result) return std::numeric_limits<double>::quiet_NaN();
double const day = MakeDay(tmp->get(0)->Number(), tmp->get(1)->Number(),
tmp->get(2)->Number());
double const time = MakeTime(tmp->get(3)->Number(), tmp->get(4)->Number(),
tmp->get(5)->Number(), tmp->get(6)->Number());
double date = MakeDate(day, time);
if (tmp->get(7)->IsNull(isolate)) {
if (!std::isnan(date)) {
date = isolate->date_cache()->ToUTC(static_cast<int64_t>(date));
}
} else {
date -= tmp->get(7)->Number() * 1000.0;
}
return date;
}
enum ToDateStringMode { kDateOnly, kTimeOnly, kDateAndTime };
// ES6 section 20.3.4.41.1 ToDateString(tv)
void ToDateString(double time_val, Vector<char> str, DateCache* date_cache,
ToDateStringMode mode = kDateAndTime) {
if (std::isnan(time_val)) {
SNPrintF(str, "Invalid Date");
return;
}
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:
SNPrintF(str, "%s %s %02d %4d", kShortWeekDays[weekday],
kShortMonths[month], day, year);
return;
case kTimeOnly:
SNPrintF(str, "%02d:%02d:%02d GMT%c%02d%02d (%s)", hour, min, sec,
(timezone_offset < 0) ? '-' : '+', timezone_hour, timezone_min,
local_timezone);
return;
case kDateAndTime:
SNPrintF(str, "%s %s %02d %4d %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);
return;
}
UNREACHABLE();
}
Object* SetLocalDateValue(Handle<JSDate> date, double time_val) {
if (time_val >= -DateCache::kMaxTimeBeforeUTCInMs &&
time_val <= DateCache::kMaxTimeBeforeUTCInMs) {
Isolate* const isolate = date->GetIsolate();
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, TimeClip(time_val));
}
} // namespace
// ES6 section 20.3.2 The Date Constructor for the [[Call]] case.
BUILTIN(DateConstructor) {
HandleScope scope(isolate);
double const time_val = JSDate::CurrentTimeValue(isolate);
char buffer[128];
ToDateString(time_val, ArrayVector(buffer), isolate->date_cache());
RETURN_RESULT_OR_FAILURE(
isolate, isolate->factory()->NewStringFromUtf8(CStrVector(buffer)));
}
// ES6 section 20.3.2 The Date Constructor for the [[Construct]] case.
BUILTIN(DateConstructor_ConstructStub) {
HandleScope scope(isolate);
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(Handle<String>::cast(value));
} else {
ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, value,
Object::ToNumber(value));
time_val = value->Number();
}
}
} else {
Handle<Object> year_object;
ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, year_object,
Object::ToNumber(args.at(1)));
Handle<Object> month_object;
ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, month_object,
Object::ToNumber(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(args.at(3)));
date = date_object->Number();
if (argc >= 4) {
Handle<Object> hours_object;
ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, hours_object,
Object::ToNumber(args.at(4)));
hours = hours_object->Number();
if (argc >= 5) {
Handle<Object> minutes_object;
ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, minutes_object,
Object::ToNumber(args.at(5)));
minutes = minutes_object->Number();
if (argc >= 6) {
Handle<Object> seconds_object;
ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, seconds_object,
Object::ToNumber(args.at(6)));
seconds = seconds_object->Number();
if (argc >= 7) {
Handle<Object> ms_object;
ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, ms_object,
Object::ToNumber(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(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(args.at(1)));
year = year_object->Number();
if (argc >= 2) {
Handle<Object> month_object;
ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, month_object,
Object::ToNumber(args.at(2)));
month = month_object->Number();
if (argc >= 3) {
Handle<Object> date_object;
ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, date_object,
Object::ToNumber(args.at(3)));
date = date_object->Number();
if (argc >= 4) {
Handle<Object> hours_object;
ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, hours_object,
Object::ToNumber(args.at(4)));
hours = hours_object->Number();
if (argc >= 5) {
Handle<Object> minutes_object;
ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, minutes_object,
Object::ToNumber(args.at(5)));
minutes = minutes_object->Number();
if (argc >= 6) {
Handle<Object> seconds_object;
ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, seconds_object,
Object::ToNumber(args.at(6)));
seconds = seconds_object->Number();
if (argc >= 7) {
Handle<Object> ms_object;
ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
isolate, ms_object, Object::ToNumber(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(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(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(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(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(month));
m = month->Number();
if (argc >= 3) {
Handle<Object> date = args.at(3);
ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, date, Object::ToNumber(date));
dt = date->Number();
}
}
double time_val = MakeDate(MakeDay(y, m, dt), time_within_day);
return SetLocalDateValue(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(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(min));
m = min->Number();
if (argc >= 3) {
Handle<Object> sec = args.at(3);
ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, sec, Object::ToNumber(sec));
s = sec->Number();
if (argc >= 4) {
Handle<Object> ms = args.at(4);
ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, ms, Object::ToNumber(ms));
milli = ms->Number();
}
}
}
time_val = MakeDate(day, MakeTime(h, m, s, milli));
}
return SetLocalDateValue(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(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(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(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(sec));
s = sec->Number();
if (argc >= 3) {
Handle<Object> ms = args.at(3);
ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, ms, Object::ToNumber(ms));
milli = ms->Number();
}
}
time_val = MakeDate(day, MakeTime(h, m, s, milli));
}
return SetLocalDateValue(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(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(date));
dt = date->Number();
}
time_val = MakeDate(MakeDay(year, m, dt), time_within_day);
}
return SetLocalDateValue(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(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(ms));
milli = ms->Number();
}
time_val = MakeDate(day, MakeTime(h, m, s, milli));
}
return SetLocalDateValue(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(value));
return *JSDate::SetValue(date, 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(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, 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(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(month));
m = month->Number();
if (argc >= 3) {
Handle<Object> date = args.at(3);
ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, date, Object::ToNumber(date));
dt = date->Number();
}
}
double const time_val = MakeDate(MakeDay(y, m, dt), time_within_day);
return *JSDate::SetValue(date, 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(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(min));
m = min->Number();
if (argc >= 3) {
Handle<Object> sec = args.at(3);
ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, sec, Object::ToNumber(sec));
s = sec->Number();
if (argc >= 4) {
Handle<Object> ms = args.at(4);
ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, ms, Object::ToNumber(ms));
milli = ms->Number();
}
}
}
time_val = MakeDate(day, MakeTime(h, m, s, milli));
}
return *JSDate::SetValue(date, 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(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, 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(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(sec));
s = sec->Number();
if (argc >= 3) {
Handle<Object> ms = args.at(3);
ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, ms, Object::ToNumber(ms));
milli = ms->Number();
}
}
time_val = MakeDate(day, MakeTime(h, m, s, milli));
}
return *JSDate::SetValue(date, 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(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(date));
dt = date->Number();
}
time_val = MakeDate(MakeDay(year, m, dt), time_within_day);
}
return *JSDate::SetValue(date, 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(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(ms));
milli = ms->Number();
}
time_val = MakeDate(day, MakeTime(h, m, s, milli));
}
return *JSDate::SetValue(date, TimeClip(time_val));
}
// ES6 section 20.3.4.35 Date.prototype.toDateString ( )
BUILTIN(DatePrototypeToDateString) {
HandleScope scope(isolate);
CHECK_RECEIVER(JSDate, date, "Date.prototype.toDateString");
char buffer[128];
ToDateString(date->value()->Number(), ArrayVector(buffer),
isolate->date_cache(), kDateOnly);
RETURN_RESULT_OR_FAILURE(
isolate, isolate->factory()->NewStringFromUtf8(CStrVector(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");
char buffer[128];
ToDateString(date->value()->Number(), ArrayVector(buffer),
isolate->date_cache());
RETURN_RESULT_OR_FAILURE(
isolate, isolate->factory()->NewStringFromUtf8(CStrVector(buffer)));
}
// ES6 section 20.3.4.42 Date.prototype.toTimeString ( )
BUILTIN(DatePrototypeToTimeString) {
HandleScope scope(isolate);
CHECK_RECEIVER(JSDate, date, "Date.prototype.toTimeString");
char buffer[128];
ToDateString(date->value()->Number(), ArrayVector(buffer),
isolate->date_cache(), kTimeOnly);
RETURN_RESULT_OR_FAILURE(
isolate, isolate->factory()->NewStringFromUtf8(CStrVector(buffer)));
}
// 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), "%s, %02d %s %4d %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(year));
double m = 0.0, dt = 1.0, y = year->Number();
if (0.0 <= y && y <= 99.0) {
y = 1900.0 + DoubleToInteger(y);
}
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(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 isolate->heap()->null_value();
} else {
Handle<String> name =
isolate->factory()->NewStringFromAsciiChecked("toISOString");
Handle<Object> function;
ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, function,
Object::GetProperty(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, NULL));
}
}
namespace {
void Generate_DatePrototype_GetField(CodeStubAssembler* assembler,
int field_index) {
typedef CodeStubAssembler::Label Label;
typedef compiler::Node Node;
Node* receiver = assembler->Parameter(0);
Node* context = assembler->Parameter(3);
Label receiver_not_date(assembler, Label::kDeferred);
assembler->GotoIf(assembler->TaggedIsSmi(receiver), &receiver_not_date);
Node* receiver_instance_type = assembler->LoadInstanceType(receiver);
assembler->GotoIf(
assembler->Word32NotEqual(receiver_instance_type,
assembler->Int32Constant(JS_DATE_TYPE)),
&receiver_not_date);
// Load the specified date field, falling back to the runtime as necessary.
if (field_index == JSDate::kDateValue) {
assembler->Return(
assembler->LoadObjectField(receiver, JSDate::kValueOffset));
} else {
if (field_index < JSDate::kFirstUncachedField) {
Label stamp_mismatch(assembler, Label::kDeferred);
Node* date_cache_stamp = assembler->Load(
MachineType::AnyTagged(),
assembler->ExternalConstant(
ExternalReference::date_cache_stamp(assembler->isolate())));
Node* cache_stamp =
assembler->LoadObjectField(receiver, JSDate::kCacheStampOffset);
assembler->GotoIf(assembler->WordNotEqual(date_cache_stamp, cache_stamp),
&stamp_mismatch);
assembler->Return(assembler->LoadObjectField(
receiver, JSDate::kValueOffset + field_index * kPointerSize));
assembler->Bind(&stamp_mismatch);
}
Node* field_index_smi = assembler->SmiConstant(Smi::FromInt(field_index));
Node* function = assembler->ExternalConstant(
ExternalReference::get_date_field_function(assembler->isolate()));
Node* result = assembler->CallCFunction2(
MachineType::AnyTagged(), MachineType::AnyTagged(),
MachineType::AnyTagged(), function, receiver, field_index_smi);
assembler->Return(result);
}
// Raise a TypeError if the receiver is not a date.
assembler->Bind(&receiver_not_date);
{
assembler->CallRuntime(Runtime::kThrowNotDateError, context);
assembler->Unreachable();
}
}
} // namespace
// static
void Builtins::Generate_DatePrototypeGetDate(
compiler::CodeAssemblerState* state) {
CodeStubAssembler assembler(state);
Generate_DatePrototype_GetField(&assembler, JSDate::kDay);
}
// static
void Builtins::Generate_DatePrototypeGetDay(
compiler::CodeAssemblerState* state) {
CodeStubAssembler assembler(state);
Generate_DatePrototype_GetField(&assembler, JSDate::kWeekday);
}
// static
void Builtins::Generate_DatePrototypeGetFullYear(
compiler::CodeAssemblerState* state) {
CodeStubAssembler assembler(state);
Generate_DatePrototype_GetField(&assembler, JSDate::kYear);
}
// static
void Builtins::Generate_DatePrototypeGetHours(
compiler::CodeAssemblerState* state) {
CodeStubAssembler assembler(state);
Generate_DatePrototype_GetField(&assembler, JSDate::kHour);
}
// static
void Builtins::Generate_DatePrototypeGetMilliseconds(
compiler::CodeAssemblerState* state) {
CodeStubAssembler assembler(state);
Generate_DatePrototype_GetField(&assembler, JSDate::kMillisecond);
}
// static
void Builtins::Generate_DatePrototypeGetMinutes(
compiler::CodeAssemblerState* state) {
CodeStubAssembler assembler(state);
Generate_DatePrototype_GetField(&assembler, JSDate::kMinute);
}
// static
void Builtins::Generate_DatePrototypeGetMonth(
compiler::CodeAssemblerState* state) {
CodeStubAssembler assembler(state);
Generate_DatePrototype_GetField(&assembler, JSDate::kMonth);
}
// static
void Builtins::Generate_DatePrototypeGetSeconds(
compiler::CodeAssemblerState* state) {
CodeStubAssembler assembler(state);
Generate_DatePrototype_GetField(&assembler, JSDate::kSecond);
}
// static
void Builtins::Generate_DatePrototypeGetTime(
compiler::CodeAssemblerState* state) {
CodeStubAssembler assembler(state);
Generate_DatePrototype_GetField(&assembler, JSDate::kDateValue);
}
// static
void Builtins::Generate_DatePrototypeGetTimezoneOffset(
compiler::CodeAssemblerState* state) {
CodeStubAssembler assembler(state);
Generate_DatePrototype_GetField(&assembler, JSDate::kTimezoneOffset);
}
// static
void Builtins::Generate_DatePrototypeGetUTCDate(
compiler::CodeAssemblerState* state) {
CodeStubAssembler assembler(state);
Generate_DatePrototype_GetField(&assembler, JSDate::kDayUTC);
}
// static
void Builtins::Generate_DatePrototypeGetUTCDay(
compiler::CodeAssemblerState* state) {
CodeStubAssembler assembler(state);
Generate_DatePrototype_GetField(&assembler, JSDate::kWeekdayUTC);
}
// static
void Builtins::Generate_DatePrototypeGetUTCFullYear(
compiler::CodeAssemblerState* state) {
CodeStubAssembler assembler(state);
Generate_DatePrototype_GetField(&assembler, JSDate::kYearUTC);
}
// static
void Builtins::Generate_DatePrototypeGetUTCHours(
compiler::CodeAssemblerState* state) {
CodeStubAssembler assembler(state);
Generate_DatePrototype_GetField(&assembler, JSDate::kHourUTC);
}
// static
void Builtins::Generate_DatePrototypeGetUTCMilliseconds(
compiler::CodeAssemblerState* state) {
CodeStubAssembler assembler(state);
Generate_DatePrototype_GetField(&assembler, JSDate::kMillisecondUTC);
}
// static
void Builtins::Generate_DatePrototypeGetUTCMinutes(
compiler::CodeAssemblerState* state) {
CodeStubAssembler assembler(state);
Generate_DatePrototype_GetField(&assembler, JSDate::kMinuteUTC);
}
// static
void Builtins::Generate_DatePrototypeGetUTCMonth(
compiler::CodeAssemblerState* state) {
CodeStubAssembler assembler(state);
Generate_DatePrototype_GetField(&assembler, JSDate::kMonthUTC);
}
// static
void Builtins::Generate_DatePrototypeGetUTCSeconds(
compiler::CodeAssemblerState* state) {
CodeStubAssembler assembler(state);
Generate_DatePrototype_GetField(&assembler, JSDate::kSecondUTC);
}
// static
void Builtins::Generate_DatePrototypeValueOf(
compiler::CodeAssemblerState* state) {
CodeStubAssembler assembler(state);
Generate_DatePrototype_GetField(&assembler, JSDate::kDateValue);
}
// static
void Builtins::Generate_DatePrototypeToPrimitive(
compiler::CodeAssemblerState* state) {
CodeStubAssembler assembler(state);
typedef CodeStubAssembler::Label Label;
typedef compiler::Node Node;
Node* receiver = assembler.Parameter(0);
Node* hint = assembler.Parameter(1);
Node* context = assembler.Parameter(4);
// Check if the {receiver} is actually a JSReceiver.
Label receiver_is_invalid(&assembler, Label::kDeferred);
assembler.GotoIf(assembler.TaggedIsSmi(receiver), &receiver_is_invalid);
assembler.GotoIfNot(assembler.IsJSReceiver(receiver), &receiver_is_invalid);
// Dispatch to the appropriate OrdinaryToPrimitive builtin.
Label hint_is_number(&assembler), hint_is_string(&assembler),
hint_is_invalid(&assembler, Label::kDeferred);
// Fast cases for internalized strings.
Node* number_string = assembler.LoadRoot(Heap::knumber_stringRootIndex);
assembler.GotoIf(assembler.WordEqual(hint, number_string), &hint_is_number);
Node* default_string = assembler.LoadRoot(Heap::kdefault_stringRootIndex);
assembler.GotoIf(assembler.WordEqual(hint, default_string), &hint_is_string);
Node* string_string = assembler.LoadRoot(Heap::kstring_stringRootIndex);
assembler.GotoIf(assembler.WordEqual(hint, string_string), &hint_is_string);
// Slow-case with actual string comparisons.
Callable string_equal = CodeFactory::StringEqual(assembler.isolate());
assembler.GotoIf(assembler.TaggedIsSmi(hint), &hint_is_invalid);
assembler.GotoIfNot(assembler.IsString(hint), &hint_is_invalid);
assembler.GotoIf(assembler.WordEqual(assembler.CallStub(string_equal, context,
hint, number_string),
assembler.TrueConstant()),
&hint_is_number);
assembler.GotoIf(assembler.WordEqual(assembler.CallStub(string_equal, context,
hint, default_string),
assembler.TrueConstant()),
&hint_is_string);
assembler.GotoIf(assembler.WordEqual(assembler.CallStub(string_equal, context,
hint, string_string),
assembler.TrueConstant()),
&hint_is_string);
assembler.Goto(&hint_is_invalid);
// Use the OrdinaryToPrimitive builtin to convert to a Number.
assembler.Bind(&hint_is_number);
{
Callable callable = CodeFactory::OrdinaryToPrimitive(
assembler.isolate(), OrdinaryToPrimitiveHint::kNumber);
Node* result = assembler.CallStub(callable, context, receiver);
assembler.Return(result);
}
// Use the OrdinaryToPrimitive builtin to convert to a String.
assembler.Bind(&hint_is_string);
{
Callable callable = CodeFactory::OrdinaryToPrimitive(
assembler.isolate(), OrdinaryToPrimitiveHint::kString);
Node* result = assembler.CallStub(callable, context, receiver);
assembler.Return(result);
}
// Raise a TypeError if the {hint} is invalid.
assembler.Bind(&hint_is_invalid);
{
assembler.CallRuntime(Runtime::kThrowInvalidHint, context, hint);
assembler.Unreachable();
}
// Raise a TypeError if the {receiver} is not a JSReceiver instance.
assembler.Bind(&receiver_is_invalid);
{
assembler.CallRuntime(
Runtime::kThrowIncompatibleMethodReceiver, context,
assembler.HeapConstant(assembler.factory()->NewStringFromAsciiChecked(
"Date.prototype [ @@toPrimitive ]", TENURED)),
receiver);
assembler.Unreachable();
}
}
} // namespace internal
} // namespace v8