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|
package goja
import (
"math"
"reflect"
"time"
)
const (
dateTimeLayout = "Mon Jan 02 2006 15:04:05 GMT-0700 (MST)"
utcDateTimeLayout = "Mon, 02 Jan 2006 15:04:05 GMT"
isoDateTimeLayout = "2006-01-02T15:04:05.000Z"
dateLayout = "Mon Jan 02 2006"
timeLayout = "15:04:05 GMT-0700 (MST)"
datetimeLayout_en_GB = "01/02/2006, 15:04:05"
dateLayout_en_GB = "01/02/2006"
timeLayout_en_GB = "15:04:05"
maxTime = 8.64e15
timeUnset = math.MinInt64
)
type dateObject struct {
baseObject
msec int64
}
func dateParse(date string) (t time.Time, ok bool) {
d, ok := parseDateISOString(date)
if !ok {
d, ok = parseDateOtherString(date)
}
if !ok {
return
}
if d.month > 12 ||
d.day > 31 ||
d.hour > 24 ||
d.min > 59 ||
d.sec > 59 ||
// special case 24:00:00.000
(d.hour == 24 && (d.min != 0 || d.sec != 0 || d.msec != 0)) {
ok = false
return
}
var loc *time.Location
if d.isLocal {
loc = time.Local
} else {
loc = time.FixedZone("", d.timeZoneOffset*60)
}
t = time.Date(d.year, time.Month(d.month), d.day, d.hour, d.min, d.sec, d.msec*1e6, loc)
unixMilli := t.UnixMilli()
ok = unixMilli >= -maxTime && unixMilli <= maxTime
return
}
func (r *Runtime) newDateObject(t time.Time, isSet bool, proto *Object) *Object {
v := &Object{runtime: r}
d := &dateObject{}
v.self = d
d.val = v
d.class = classDate
d.prototype = proto
d.extensible = true
d.init()
if isSet {
d.msec = timeToMsec(t)
} else {
d.msec = timeUnset
}
return v
}
func dateFormat(t time.Time) string {
return t.Local().Format(dateTimeLayout)
}
func timeFromMsec(msec int64) time.Time {
sec := msec / 1000
nsec := (msec % 1000) * 1e6
return time.Unix(sec, nsec)
}
func timeToMsec(t time.Time) int64 {
return t.Unix()*1000 + int64(t.Nanosecond())/1e6
}
func (d *dateObject) exportType() reflect.Type {
return typeTime
}
func (d *dateObject) export(*objectExportCtx) interface{} {
if d.isSet() {
return d.time()
}
return nil
}
func (d *dateObject) setTimeMs(ms int64) Value {
if ms >= 0 && ms <= maxTime || ms < 0 && ms >= -maxTime {
d.msec = ms
return intToValue(ms)
}
d.unset()
return _NaN
}
func (d *dateObject) isSet() bool {
return d.msec != timeUnset
}
func (d *dateObject) unset() {
d.msec = timeUnset
}
func (d *dateObject) time() time.Time {
return timeFromMsec(d.msec)
}
func (d *dateObject) timeUTC() time.Time {
return timeFromMsec(d.msec).In(time.UTC)
}
|
