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Code Issues Releases Wiki Activity

Switch Amount to contain big.Rat instead of being a typedef

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This commit is contained in:
Aaron Lindsay
2017-04-03 21:15:08 -04:00
parent 9b03829645
commit 7f5ef5751d
6 changed files with 80 additions and 90 deletions
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16
types.go
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@ -37,11 +37,12 @@ func (i Int) Equal(o Int) bool {
return i == o
}
type Amount big.Rat
type Amount struct {
big.Rat
}
func (a *Amount) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error {
var value string
var b big.Rat
err := d.DecodeElement(&value, &start)
if err != nil {
@ -54,16 +55,14 @@ func (a *Amount) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error {
// by a comma, so fix that up before attempting to parse it into big.Rat
value = strings.Replace(value, ",", ".", 1)
if _, ok := b.SetString(value); !ok {
return errors.New("Failed to parse OFX amount into big.Rat")
if _, ok := a.SetString(value); !ok {
return errors.New("Failed to parse OFX amount")
}
*a = Amount(b)
return nil
}
func (a Amount) String() string {
var b big.Rat = big.Rat(a)
return strings.TrimRight(strings.TrimRight(b.FloatString(100), "0"), ".")
return strings.TrimRight(strings.TrimRight(a.FloatString(100), "0"), ".")
}
func (a *Amount) MarshalXML(e *xml.Encoder, start xml.StartElement) error {
@ -71,8 +70,7 @@ func (a *Amount) MarshalXML(e *xml.Encoder, start xml.StartElement) error {
}
func (a Amount) Equal(o Amount) bool {
ratA := (*big.Rat)(&a)
return ratA.Cmp((*big.Rat)(&o)) == 0
return (&a).Cmp(&o.Rat) == 0
}
type Date time.Time