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lua如何构造类
1 function class(super, autoConstructSuper) 2 local classType = {}; 3 classType.autoConstructSuper = autoConstructSuper or (autoConstructSuper == nil); 4 5 if super then 6 classType.super = super; 7 local mt = getmetatable(super); 8 setmetatable(classType, { __index = super; __newindex = mt and mt.__newindex;}); 9 else10 classType.setDelegate = function(self,delegate)11 self.m_delegate = delegate;12 end13 end14 15 return classType;16 end17 18 19 function new(classType, ...)20 local obj = {};21 local mt = getmetatable(classType);22 setmetatable(obj, { __index = classType; __newindex = mt and mt.__newindex;});23 do24 local create;25 create =26 function(c, ...)27 if c.super and c.autoConstructSuper then28 create(c.super, ...);29 end30 if rawget(c,"ctor") then31 obj.currentSuper = c.super;32 c.ctor(obj, ...);33 end34 end35 36 create(classType, ...);37 end38 obj.currentSuper = nil;39 return obj;40 end41 42 43 function delete(obj)44 do45 local destory =46 function(c)47 while c do48 if rawget(c,"dtor") then49 c.dtor(obj);50 end51 52 c = getmetatable(c);53 c = c and c.__index; 54 end55 end56 destory(obj);57 end58 end
lua如何构造类
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