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package objects
import (
"github.com/d5/tengo/compiler/token"
)
// Closure represents a function closure.
type Closure struct {
Fn *CompiledFunction
Free []*ObjectPtr
}
// TypeName returns the name of the type.
func (o *Closure) TypeName() string {
return "closure"
}
func (o *Closure) String() string {
return "<closure>"
}
// BinaryOp returns another object that is the result of
// a given binary operator and a right-hand side object.
func (o *Closure) BinaryOp(op token.Token, rhs Object) (Object, error) {
return nil, ErrInvalidOperator
}
// Copy returns a copy of the type.
func (o *Closure) Copy() Object {
return &Closure{
Fn: o.Fn.Copy().(*CompiledFunction),
Free: append([]*ObjectPtr{}, o.Free...), // DO NOT Copy() of elements; these are variable pointers
}
}
// IsFalsy returns true if the value of the type is falsy.
func (o *Closure) IsFalsy() bool {
return false
}
// Equals returns true if the value of the type
// is equal to the value of another object.
func (o *Closure) Equals(x Object) bool {
return false
}
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