132 lines
2 KiB
Go
132 lines
2 KiB
Go
package objects
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import (
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"strconv"
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)
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// ToString will try to convert object o to string value.
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func ToString(o Object) (v string, ok bool) {
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if _, isUndefined := o.(*Undefined); isUndefined {
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//ok = false
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return
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}
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ok = true
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if str, isStr := o.(*String); isStr {
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v = str.Value
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} else {
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v = o.String()
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}
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return
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}
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// ToInt will try to convert object o to int value.
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func ToInt(o Object) (v int, ok bool) {
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switch o := o.(type) {
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case *Int:
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v = int(o.Value)
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ok = true
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case *Float:
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v = int(o.Value)
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ok = true
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case *Char:
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v = int(o.Value)
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ok = true
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case *Bool:
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if o.Value {
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v = 1
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}
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ok = true
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case *String:
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c, err := strconv.ParseInt(o.Value, 10, 64)
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if err == nil {
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v = int(c)
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ok = true
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}
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}
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//ok = false
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return
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}
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// ToInt64 will try to convert object o to int64 value.
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func ToInt64(o Object) (v int64, ok bool) {
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switch o := o.(type) {
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case *Int:
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v = o.Value
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ok = true
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case *Float:
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v = int64(o.Value)
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ok = true
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case *Char:
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v = int64(o.Value)
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ok = true
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case *Bool:
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if o.Value {
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v = 1
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}
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ok = true
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case *String:
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c, err := strconv.ParseInt(o.Value, 10, 64)
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if err == nil {
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v = c
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ok = true
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}
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}
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//ok = false
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return
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}
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// ToFloat64 will try to convert object o to float64 value.
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func ToFloat64(o Object) (v float64, ok bool) {
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switch o := o.(type) {
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case *Int:
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v = float64(o.Value)
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ok = true
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case *Float:
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v = o.Value
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ok = true
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case *String:
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c, err := strconv.ParseFloat(o.Value, 64)
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if err == nil {
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v = c
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ok = true
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}
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}
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//ok = false
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return
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}
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// ToBool will try to convert object o to bool value.
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func ToBool(o Object) (v bool, ok bool) {
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ok = true
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v = !o.IsFalsy()
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return
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}
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// ToRune will try to convert object o to rune value.
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func ToRune(o Object) (v rune, ok bool) {
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switch o := o.(type) {
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case *Int:
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v = rune(o.Value)
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ok = true
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case *Char:
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v = rune(o.Value)
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ok = true
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case *String:
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rs := []rune(o.Value)
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switch len(rs) {
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case 1:
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v = rs[0]
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ok = true
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}
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}
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//ok = false
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return
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}
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