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duration.go
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duration.go
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package goptionals
import "time"
// Duration returns a pointer to the time.Duration in.
func Duration(v time.Duration) *time.Duration {
return &v
}
// DurationValue returns the value of the time.Duration pointer passed in or time.Duration(0) if the pointer is nil.
func DurationValue(v *time.Duration) time.Duration {
if v != nil {
return *v
}
return time.Duration(0)
}
// DurationSlice converts a slice of time.Duration values into a slice of time.Duration pointers
func DurationSlice(src []time.Duration) []*time.Duration {
dst := make([]*time.Duration, len(src))
for i := 0; i < len(src); i++ {
dst[i] = &(src[i])
}
return dst
}
// DurationValueSlice converts a slice of time.Duration pointers into a slice of time.Duration values
func DurationValueSlice(src []*time.Duration) []time.Duration {
dst := make([]time.Duration, len(src))
for i := 0; i < len(src); i++ {
if src[i] != nil {
dst[i] = *(src[i])
}
}
return dst
}
// DurationMap converts a string map of time.Duration values into a string
// map of time.Duration pointers
func DurationMap(src map[string]time.Duration) map[string]*time.Duration {
dst := make(map[string]*time.Duration, len(src))
for k, val := range src {
v := val
dst[k] = &v
}
return dst
}
// DurationValueMap converts a string map of time.Duration pointers into a string
// map of time.Duration values
func DurationValueMap(src map[string]*time.Duration) map[string]time.Duration {
dst := make(map[string]time.Duration, len(src))
for k, val := range src {
if val != nil {
dst[k] = *val
}
}
return dst
}