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use int64 type to prevent year 2038 problem on 32bit machines #4

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use int64 type to prevent year 2038 problem on 32bit machines #4

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26 changes: 16 additions & 10 deletions duration.go
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Original file line number Diff line number Diff line change
Expand Up @@ -15,14 +15,20 @@ import (
// Duration represents an ISO8601 Duration
// https://en.wikipedia.org/wiki/ISO_8601#Durations
type Duration struct {
Y int
M int
W int
D int
// Time Component
TH int
TM int
TS int
// Y is the year designator that follows the value for the number of calendar years.
Y int64
// M is the month designator that follows the value for the number of calendar months.
M int64
// W is the week designator that follows the value for the number of weeks.
W int64
// D is the day designator that follows the value for the number of calendar days.
D int64
// TH is the hour designator that follows the value for the number of hours.
TH int64
// TM is the minute designator that follows the value for the number of minutes.
TM int64
// TS is the second designator that follows the value for the number of seconds.
TS int64
}

var pattern = regexp.MustCompile(`^P((?P<year>\d+)Y)?((?P<month>\d+)M)?((?P<week>\d+)W)?((?P<day>\d+)D)?(T((?P<hour>\d+)H)?((?P<minute>\d+)M)?((?P<second>\d+)S)?)?$`)
Expand All @@ -44,7 +50,7 @@ func ParseISO8601(from string) (Duration, error) {
continue
}

val, err := strconv.Atoi(part)
val, err := strconv.ParseInt(part, 10, 64)
if err != nil {
return d, err
}
Expand Down Expand Up @@ -92,7 +98,7 @@ func (d Duration) HasTimePart() bool {
func (d Duration) Shift(t time.Time) time.Time {
if d.Y != 0 || d.M != 0 || d.W != 0 || d.D != 0 {
days := d.W*7 + d.D
t = t.AddDate(d.Y, d.M, days)
t = t.AddDate(int(d.Y), int(d.M), int(days))
}
t = t.Add(d.timeDuration())
return t
Expand Down