mirror of https://github.com/spf13/cast.git
Support some commonly used Float64 interfaces
This commit is contained in:
Bjørn Erik Pedersen
parent
6c5f3fcc57
commit
6e0c3abdfe
94
caste.go
94
caste.go
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@ -18,6 +18,14 @@ import (
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var errNegativeNotAllowed = errors.New("unable to cast negative value")
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type float64EProvider interface {
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Float64() (float64, error)
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}
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type float64Provider interface {
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Float64() float64
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}
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// ToTimeE casts an interface to a time.Time type.
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func ToTimeE(i interface{}) (tim time.Time, err error) {
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return ToTimeInDefaultLocationE(i, time.UTC)
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@ -77,11 +85,14 @@ func ToDurationE(i interface{}) (d time.Duration, err error) {
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d, err = time.ParseDuration(s + "ns")
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}
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return
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case json.Number:
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case float64EProvider:
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var v float64
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v, err = s.Float64()
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d = time.Duration(v)
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return
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case float64Provider:
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d = time.Duration(s.Float64())
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return
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default:
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err = fmt.Errorf("unable to cast %#v of type %T to Duration", i, i)
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return
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@ -174,12 +185,14 @@ func ToFloat64E(i interface{}) (float64, error) {
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return v, nil
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}
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return 0, fmt.Errorf("unable to cast %#v of type %T to float64", i, i)
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case json.Number:
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case float64EProvider:
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v, err := s.Float64()
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if err == nil {
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return v, nil
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}
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return 0, fmt.Errorf("unable to cast %#v of type %T to float64", i, i)
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case float64Provider:
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return s.Float64(), nil
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case bool:
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if s {
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return 1, nil
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@ -230,12 +243,14 @@ func ToFloat32E(i interface{}) (float32, error) {
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return float32(v), nil
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}
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return 0, fmt.Errorf("unable to cast %#v of type %T to float32", i, i)
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case json.Number:
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case float64EProvider:
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v, err := s.Float64()
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if err == nil {
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return float32(v), nil
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}
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return 0, fmt.Errorf("unable to cast %#v of type %T to float32", i, i)
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case float64Provider:
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return float32(s.Float64()), nil
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case bool:
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if s {
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return 1, nil
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@ -917,8 +932,8 @@ func indirectToStringerOrError(a interface{}) interface{} {
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return nil
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}
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var errorType = reflect.TypeOf((*error)(nil)).Elem()
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var fmtStringerType = reflect.TypeOf((*fmt.Stringer)(nil)).Elem()
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errorType := reflect.TypeOf((*error)(nil)).Elem()
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fmtStringerType := reflect.TypeOf((*fmt.Stringer)(nil)).Elem()
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v := reflect.ValueOf(a)
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for !v.Type().Implements(fmtStringerType) && !v.Type().Implements(errorType) && v.Kind() == reflect.Ptr && !v.IsNil() {
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@ -987,7 +1002,7 @@ func ToStringE(i interface{}) (string, error) {
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// ToStringMapStringE casts an interface to a map[string]string type.
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func ToStringMapStringE(i interface{}) (map[string]string, error) {
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var m = map[string]string{}
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m := map[string]string{}
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switch v := i.(type) {
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case map[string]string:
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@ -1017,7 +1032,7 @@ func ToStringMapStringE(i interface{}) (map[string]string, error) {
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// ToStringMapStringSliceE casts an interface to a map[string][]string type.
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func ToStringMapStringSliceE(i interface{}) (map[string][]string, error) {
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var m = map[string][]string{}
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m := map[string][]string{}
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switch v := i.(type) {
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case map[string][]string:
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@ -1081,7 +1096,7 @@ func ToStringMapStringSliceE(i interface{}) (map[string][]string, error) {
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// ToStringMapBoolE casts an interface to a map[string]bool type.
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func ToStringMapBoolE(i interface{}) (map[string]bool, error) {
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var m = map[string]bool{}
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m := map[string]bool{}
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switch v := i.(type) {
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case map[interface{}]interface{}:
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@ -1106,7 +1121,7 @@ func ToStringMapBoolE(i interface{}) (map[string]bool, error) {
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// ToStringMapE casts an interface to a map[string]interface{} type.
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func ToStringMapE(i interface{}) (map[string]interface{}, error) {
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var m = map[string]interface{}{}
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m := map[string]interface{}{}
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switch v := i.(type) {
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case map[interface{}]interface{}:
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@ -1126,7 +1141,7 @@ func ToStringMapE(i interface{}) (map[string]interface{}, error) {
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// ToStringMapIntE casts an interface to a map[string]int{} type.
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func ToStringMapIntE(i interface{}) (map[string]int, error) {
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var m = map[string]int{}
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m := map[string]int{}
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if i == nil {
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return m, fmt.Errorf("unable to cast %#v of type %T to map[string]int", i, i)
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}
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@ -1167,7 +1182,7 @@ func ToStringMapIntE(i interface{}) (map[string]int, error) {
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// ToStringMapInt64E casts an interface to a map[string]int64{} type.
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func ToStringMapInt64E(i interface{}) (map[string]int64, error) {
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var m = map[string]int64{}
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m := map[string]int64{}
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if i == nil {
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return m, fmt.Errorf("unable to cast %#v of type %T to map[string]int64", i, i)
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}
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@ -1404,38 +1419,35 @@ func (f timeFormat) hasTimezone() bool {
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return f.typ >= timeFormatNumericTimezone && f.typ <= timeFormatNumericAndNamedTimezone
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}
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var (
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timeFormats = []timeFormat{
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// Keep common formats at the top.
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{"2006-01-02", timeFormatNoTimezone},
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{time.RFC3339, timeFormatNumericTimezone},
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{"2006-01-02T15:04:05", timeFormatNoTimezone}, // iso8601 without timezone
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{time.RFC1123Z, timeFormatNumericTimezone},
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{time.RFC1123, timeFormatNamedTimezone},
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{time.RFC822Z, timeFormatNumericTimezone},
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{time.RFC822, timeFormatNamedTimezone},
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{time.RFC850, timeFormatNamedTimezone},
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{"2006-01-02 15:04:05.999999999 -0700 MST", timeFormatNumericAndNamedTimezone}, // Time.String()
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{"2006-01-02T15:04:05-0700", timeFormatNumericTimezone}, // RFC3339 without timezone hh:mm colon
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{"2006-01-02 15:04:05Z0700", timeFormatNumericTimezone}, // RFC3339 without T or timezone hh:mm colon
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{"2006-01-02 15:04:05", timeFormatNoTimezone},
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{time.ANSIC, timeFormatNoTimezone},
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{time.UnixDate, timeFormatNamedTimezone},
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{time.RubyDate, timeFormatNumericTimezone},
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{"2006-01-02 15:04:05Z07:00", timeFormatNumericTimezone},
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{"02 Jan 2006", timeFormatNoTimezone},
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{"2006-01-02 15:04:05 -07:00", timeFormatNumericTimezone},
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{"2006-01-02 15:04:05 -0700", timeFormatNumericTimezone},
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{time.Kitchen, timeFormatTimeOnly},
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{time.Stamp, timeFormatTimeOnly},
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{time.StampMilli, timeFormatTimeOnly},
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{time.StampMicro, timeFormatTimeOnly},
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{time.StampNano, timeFormatTimeOnly},
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}
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)
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var timeFormats = []timeFormat{
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// Keep common formats at the top.
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{"2006-01-02", timeFormatNoTimezone},
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{time.RFC3339, timeFormatNumericTimezone},
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{"2006-01-02T15:04:05", timeFormatNoTimezone}, // iso8601 without timezone
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{time.RFC1123Z, timeFormatNumericTimezone},
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{time.RFC1123, timeFormatNamedTimezone},
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{time.RFC822Z, timeFormatNumericTimezone},
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{time.RFC822, timeFormatNamedTimezone},
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{time.RFC850, timeFormatNamedTimezone},
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{"2006-01-02 15:04:05.999999999 -0700 MST", timeFormatNumericAndNamedTimezone}, // Time.String()
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{"2006-01-02T15:04:05-0700", timeFormatNumericTimezone}, // RFC3339 without timezone hh:mm colon
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{"2006-01-02 15:04:05Z0700", timeFormatNumericTimezone}, // RFC3339 without T or timezone hh:mm colon
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{"2006-01-02 15:04:05", timeFormatNoTimezone},
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{time.ANSIC, timeFormatNoTimezone},
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{time.UnixDate, timeFormatNamedTimezone},
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{time.RubyDate, timeFormatNumericTimezone},
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{"2006-01-02 15:04:05Z07:00", timeFormatNumericTimezone},
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{"02 Jan 2006", timeFormatNoTimezone},
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{"2006-01-02 15:04:05 -07:00", timeFormatNumericTimezone},
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{"2006-01-02 15:04:05 -0700", timeFormatNumericTimezone},
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{time.Kitchen, timeFormatTimeOnly},
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{time.Stamp, timeFormatTimeOnly},
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{time.StampMilli, timeFormatTimeOnly},
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{time.StampMicro, timeFormatTimeOnly},
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{time.StampNano, timeFormatTimeOnly},
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}
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func parseDateWith(s string, location *time.Location, formats []timeFormat) (d time.Time, e error) {
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for _, format := range formats {
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if d, e = time.Parse(format.format, s); e == nil {
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