func init
	// defines attributes
	if(not isdef("Attributes"))
		arr = this.props("Attributes").value
		this.attr = code(arr.join(','))
	end

	// defines comments
	if(not isdef("Comment"))
		arr = this.props("Comment").value
	end

	// define constructor body
	sys.blocks_store()
	event("onDestructor")

	// initialize destructor
	ini = block.reg("init").inc().inc()
	inits.add(ini)
	this.class = code(this.parent.get_parent_sdk().props("ClassName").value)
	if(arr.size())
		for(i=0; i<arr.size(); i++)
			ini.println('/// ', code(arr.get(i)))
		end
	end
	isdef("Attributes") ? '' : ini.println('[', this.attr, ']')
	ini.println('~', this.class, '()')
	.println('{').inc()
		if(not blk_lvars.empty())
			ini.copyhere(blk_lvars)
		end
		ini.copyhere(blk)
	.dec().println('}')

	sys.blocks_restore()
end