func init
	// initialize instance
	if(isdef("Name"))
		this.setfield('instance', this.codename)
	else
		this.setfield('instance', code(this.props("Name").value))
	end

	// defines level
	this.level = isdef("AccessModifier") ? '' : lower(this.props("AccessModifier").value) + ' '

	// defines type
	this.type = code(this.props("Type").value)
	this.typecode = sys.type_code(this.type)

	// defines value
	this.val = sys.get_typed_field('', 'Value', this.typecode)

	// set a block of the element
	this.setfield('_blk', block.reggen())._blk.inc().inc()

	// defines comments
	if(not isdef("Comment"))
		arr = this.props("Comment").value
		for(i = 0; i < arr.size(); i++)
			this._blk.println('/// ', code(arr.get(i)))
		end
	end

	// defines attributes
	if(not isdef("Attributes"))
		arr = this.props("Attributes").value
		attr = code(arr.join(','))
		this._blk.println('[', attr, ']')
	end

	// declares constant
	if(len(this.val))
		this._blk.println(this.level, 'const ', this.type, ' ', this.instance, ' = ', this.val, ';')
	end

	// cleanup
	arr.clear()
end

func Const
	return(sub(this.instance, this.typecode))
end

func Constant
	return(sub(code(this.parent.get_parent_sdk().cName) + '.' + this.instance, this.typecode))
end