33 lines
533 B
Go
33 lines
533 B
Go
package objects
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import "github.com/d5/tengo/token"
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var undefined = &Undefined{}
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type Undefined struct{}
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func (o Undefined) TypeName() string {
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return "undefined"
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}
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func (o Undefined) String() string {
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return "<undefined>"
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}
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func (o Undefined) BinaryOp(op token.Token, rhs Object) (Object, error) {
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return nil, ErrInvalidOperator
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}
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func (o Undefined) Copy() Object {
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return Undefined{}
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}
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func (o Undefined) IsFalsy() bool {
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return true
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}
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func (o Undefined) Equals(x Object) bool {
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_, ok := x.(*Undefined)
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return ok
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}
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