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function class(classname, ...)
local cls = {__cname = classname}
local supers = {...}
for _, super in ipairs(supers) do
local superType = type(super)
assert(superType == "nil" or superType == "table" or superType == "function",
string.format("class() - create class \"%s\" with invalid super class type \"%s\"",
classname, superType))
if superType == "function" then
assert(cls.__create == nil,
string.format("class() - create class \"%s\" with more than one creating function",
classname));
-- if super is function, set it to __create
cls.__create = super
elseif superType == "table" then
if super[".isclass"] then
-- super is native class
assert(cls.__create == nil,
string.format("class() - create class \"%s\" with more than one creating function or native class",
classname));
cls.__create = function() return super:create() end
else
-- super is pure lua class
cls.__supers = cls.__supers or {}
cls.__supers[#cls.__supers + 1] = super
if not cls.super then
-- set first super pure lua class as class.super
cls.super = super
end
end
else
error(string.format("class() - create class \"%s\" with invalid super type",
classname), 0)
end
end
cls.__index = cls
if not cls.__supers or #cls.__supers == 1 then
setmetatable(cls, {__index = cls.super})
else
setmetatable(cls, {__index = function(_, key)
local supers = cls.__supers
for i = 1, #supers do
local super = supers[i]
if super[key] then return super[key] end
end
end})
end
if not cls.ctor then
-- add default constructor
cls.ctor = function() end
end
cls.new = function(...)
local instance
if cls.__create then
instance = cls.__create(...)
else
instance = {}
end
setmetatableindex(instance, cls)
instance.class = cls
instance:ctor(...)
return instance
end
cls.create = function(_, ...)
return cls.new(...)
end
return cls
end
local baseClass = class("base")
function baseClass:ctor()
self.baseNum = 1
end
function baseClass:baseFunc()
print("base Func " .. self.baseNum)
end
return baseClass
local levelTwo = class("two",require("res.Role.tt.hhh.baseClass"):create())
function levelTwo:ctor()
self.twoNum = 100
end
function levelTwo:twoFunc()
print("two Func , base num :" .. self.baseNum)
print("two Func , two num : " .. self.twoNum)
end
return levelTwo
local baseObj = require("res.Role.tt.hhh.baseClass"):create()
baseObj:baseFunc()
local twoObj = require("res.Role.tt.hhh.levelTwo"):create()
twoObj:baseFunc()
twoObj:twoFunc()
local levelOne = class("one",function()
return require("res.Role.tt.hhh.baseClass"):create()
end)
function levelOne:ctor()
self.oneNum = 10
end
function levelOne:oneFunc()
print("one Func , base num :" .. self.baseNum)
print("one Func , one num : " .. self.oneNum)
end
return levelOne