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utils_casting.go
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/
utils_casting.go
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package glog
import "time"
// castTime tries to cast the given value as a time.Time value.
func castTime(value interface{}) (ok bool, v time.Time) {
ok = false
v = time.Now()
switch t := value.(type) {
case time.Time:
v = t
ok = true
}
return
}
// castTimeSlice tries to cast the given value as a time.Time slice.
func castTimeSlice(value interface{}) (ok bool, v []time.Time) {
ok = false
v = []time.Time{}
switch t := value.(type) {
case []time.Time:
v = t
ok = true
}
return
}
// castDuration tries to cast the given value as a time.Duration value.
func castDuration(value interface{}) (ok bool, v time.Duration) {
ok = false
v = time.Duration(0)
switch t := value.(type) {
case time.Duration:
v = t
ok = true
}
return
}
// castDurationSlice tries to cast the given value as a time.Duration slice.
func castDurationSlice(value interface{}) (ok bool, v []time.Duration) {
ok = false
v = []time.Duration{}
switch t := value.(type) {
case []time.Duration:
v = t
ok = true
}
return
}
// castString tries to cast the given value as a string.
func castString(value interface{}) (ok bool, v string) {
ok = false
v = ""
switch t := value.(type) {
case string:
v = t
ok = true
}
return
}
// castStringSlice tries to cast the given value as a string slice.
func castStringSlice(value interface{}) (ok bool, v []string) {
ok = false
v = []string{}
switch t := value.(type) {
case []string:
v = t
ok = true
}
return
}
// castInterfaceSlice tries to cast the given value as a interface{} slice.
func castInterfaceSlice(value interface{}) (ok bool, v []interface{}) {
ok = false
v = []interface{}{}
switch t := value.(type) {
case []interface{}:
v = t
ok = true
}
return
}
// castBool tries to cast the given value as a boolean.
func castBool(value interface{}) (ok bool, v bool) {
ok = false
v = false
switch t := value.(type) {
case bool:
v = t
ok = true
}
return
}
// castBoolSlice tries to cast the given value as a bool slice.
func castBoolSlice(value interface{}) (ok bool, v []bool) {
ok = false
v = []bool{}
switch t := value.(type) {
case []bool:
v = t
ok = true
}
return
}
// castInt tries to cast the given value as an integer.
func castInt(value interface{}) (ok bool, v int64) {
ok = false
v = int64(0)
switch t := value.(type) {
case int:
v = int64(t)
ok = true
case int8:
v = int64(t)
ok = true
case int16:
v = int64(t)
ok = true
case int32:
v = int64(t)
ok = true
case int64:
v = t
ok = true
}
return
}
// castToInt64Slice consolidates the given values in an int64 slice.
func castToInt64Slice[I IntOrInterface](v ...I) []int64 {
res := []int64{}
for _, v := range v {
_, vc := castInt(v)
res = append(res, vc)
}
return res
}
// castIntSlice tries to cast the given value to a int64 slice.
func castIntSlice(value interface{}) (ok bool, v []int64) {
ok = false
v = []int64{}
switch t := value.(type) {
case []int:
v = castToInt64Slice(t...)
ok = true
case []int8:
v = castToInt64Slice(t...)
ok = true
case []int16:
v = castToInt64Slice(t...)
ok = true
case []int32:
v = castToInt64Slice(t...)
ok = true
case []int64:
v = t
ok = true
}
return
}
// castUint tries to cast the given value as an unsigned integer.
func castUint(value interface{}) (ok bool, v uint64) {
ok = false
v = uint64(0)
switch t := value.(type) {
case uint:
v = uint64(t)
ok = true
case uint8:
v = uint64(t)
ok = true
case uint16:
v = uint64(t)
ok = true
case uint32:
v = uint64(t)
ok = true
case uint64:
v = uint64(t)
ok = true
}
return
}
// castToUint64Slice consolidates the given values in an uint64 slice.
func castToUint64Slice[U UintOrInterface](v ...U) []uint64 {
res := []uint64{}
for _, v := range v {
_, vc := castUint(v)
res = append(res, vc)
}
return res
}
// castUintSlice tries to cast the given value to a uint64 slice.
func castUintSlice(value interface{}) (ok bool, v []uint64) {
ok = false
v = []uint64{}
switch t := value.(type) {
case []uint:
v = castToUint64Slice(t...)
ok = true
case []uint8:
v = castToUint64Slice(t...)
ok = true
case []uint16:
v = castToUint64Slice(t...)
ok = true
case []uint32:
v = castToUint64Slice(t...)
ok = true
case []uint64:
v = t
ok = true
}
return
}
// castFloat tries to cast the given value as a float.
func castFloat(value interface{}) (ok bool, normalized bool, v float64) {
ok = false
v = float64(0)
switch t := value.(type) {
case float32:
v = float64(t)
ok = true
case float64:
v = t
ok = true
}
normalized = ok && v >= -1.0 && v <= 1.0
return
}
// castToFloat64Slice consolidates the given values in a float64 slice.
func castToFloat64Slice[F FloatOrInterface](v ...F) []float64 {
res := []float64{}
for _, v := range v {
_, _, vc := castFloat(v)
res = append(res, vc)
}
return res
}
// castFloatSlice tries to cast the given value to a float64 slice.
func castFloatSlice(value interface{}) (ok bool, v []float64) {
ok = false
v = []float64{}
switch t := value.(type) {
case []float32:
v = castToFloat64Slice(t...)
ok = true
case []float64:
v = t
ok = true
}
return
}