// Copyright 2018 The go-python Authors. All rights reserved.

// Use of this source code is governed by a BSD-style

// license that can be found in the LICENSE file.

// Property object

package py

// A python Property object

type Property struct {

Fget func(self Object) (Object, error)

Fset func(self, value Object) error

Fdel func(self Object) error

Doc string

}

var PropertyType = NewType("property", "property object")

// Type of this object

func (o *Property) Type() *Type {

return PropertyType

}

func (p *Property) M__get__(instance, owner Object) (Object, error) {

if p.Fget == nil {

return nil, ExceptionNewf(AttributeError, "can't get attribute")

}

return p.Fget(instance)

}

func (p *Property) M__set__(instance, value Object) (Object, error) {

if p.Fset == nil {

return nil, ExceptionNewf(AttributeError, "can't set attribute")

}

return None, p.Fset(instance, value)

}

func (p *Property) M__delete__(instance Object) (Object, error) {

if p.Fdel == nil {

return nil, ExceptionNewf(AttributeError, "can't delete attribute")

}

return None, p.Fdel(instance)

}

// Interfaces

var _ I__get__ = (*Property)(nil)

var _ I__set__ = (*Property)(nil)

var _ I__delete__ = (*Property)(nil)