Re: intercept settable_event

[云风 Cloud Wu <cloudwu@...>]

hz <hz@fiosoftware.com>于2017年1月18日周三 上午11:45写道：

is there a way to intercept the settable_event?

want to implement kind of getter/setter observer for a table (similar to the KVO in Cocoa). Is there a way to do this in pure lua?

local realobj = {}

local obj = setmetatable({}, { 

  __index = realobj, 

  __newindex = function(self, k, v)

    -- it's settable event for obj

    realobj[k]=v

 end,

})