rum-goggles/vendor/github.com/robertkrimen/otto/value_boolean.go
2024-02-23 11:39:16 -05:00

41 lines
754 B
Go

package otto
import (
"fmt"
"math"
"reflect"
"unicode/utf16"
)
func (v Value) bool() bool {
if v.kind == valueBoolean {
return v.value.(bool)
}
if v.IsUndefined() || v.IsNull() {
return false
}
switch value := v.value.(type) {
case bool:
return value
case int, int8, int16, int32, int64:
return reflect.ValueOf(value).Int() != 0
case uint, uint8, uint16, uint32, uint64:
return reflect.ValueOf(value).Uint() != 0
case float32:
return value != 0
case float64:
if math.IsNaN(value) || value == 0 {
return false
}
return true
case string:
return len(value) != 0
case []uint16:
return len(utf16.Decode(value)) != 0
}
if v.IsObject() {
return true
}
panic(fmt.Sprintf("unexpected boolean type %T", v.value))
}