65 lines
1.2 KiB
Go
65 lines
1.2 KiB
Go
package objects
|
|
|
|
import (
|
|
"github.com/d5/tengo/compiler/token"
|
|
)
|
|
|
|
// Bool represents a boolean value.
|
|
type Bool struct {
|
|
// this is intentionally non-public to force using objects.TrueValue and FalseValue always
|
|
value bool
|
|
}
|
|
|
|
func (o *Bool) String() string {
|
|
if o.value {
|
|
return "true"
|
|
}
|
|
|
|
return "false"
|
|
}
|
|
|
|
// TypeName returns the name of the type.
|
|
func (o *Bool) TypeName() string {
|
|
return "bool"
|
|
}
|
|
|
|
// BinaryOp returns another object that is the result of
|
|
// a given binary operator and a right-hand side object.
|
|
func (o *Bool) BinaryOp(op token.Token, rhs Object) (Object, error) {
|
|
return nil, ErrInvalidOperator
|
|
}
|
|
|
|
// Copy returns a copy of the type.
|
|
func (o *Bool) Copy() Object {
|
|
return o
|
|
}
|
|
|
|
// IsFalsy returns true if the value of the type is falsy.
|
|
func (o *Bool) IsFalsy() bool {
|
|
return !o.value
|
|
}
|
|
|
|
// Equals returns true if the value of the type
|
|
// is equal to the value of another object.
|
|
func (o *Bool) Equals(x Object) bool {
|
|
return o == x
|
|
}
|
|
|
|
// GobDecode decodes bool value from input bytes.
|
|
func (o *Bool) GobDecode(b []byte) (err error) {
|
|
o.value = b[0] == 1
|
|
|
|
return
|
|
}
|
|
|
|
// GobEncode encodes bool values into bytes.
|
|
func (o *Bool) GobEncode() (b []byte, err error) {
|
|
if o.value {
|
|
b = []byte{1}
|
|
} else {
|
|
b = []byte{0}
|
|
}
|
|
|
|
return
|
|
}
|