miduo_client/Assets/ManagedResources/~Lua/class.lua

113 lines
2.7 KiB
Lua

-- class.lua
-- Compatible with Lua 5.1 (not 5.0).
function Class(base, _ctor)
local c = { }
return xClass(c, base, _ctor);
end
function xClass(c, base, _ctor)
-- a new class instance
if not _ctor and type(base) == 'function' then
_ctor = base
base = nil
elseif type(base) == 'table' then
-- our new class is a shallow copy of the base class!
for i, v in pairs(base) do
c[i] = v
end
c._base = base
end
-- the class will be the metatable for all its objects,
-- and they will look up their methods in it.clcl
c.__index = c
-- expose a constructor which can be called by <classname>(<args>)
local mt = { }
mt.__call = function(class_tbl, ...)
local obj = { }
setmetatable(obj, c)
if _ctor then
_ctor(obj, ...)
end
return obj
end
c._ctor = _ctor
c.is_a = function(self, klass)
local m = getmetatable(self)
while m do
if m == klass then return true end
m = m._base
end
return false
end
setmetatable(c, mt)
return c
end
function quick_class(classname, super)
local superType = type(super)
local cls
if superType ~= "function" and superType ~= "table" then
superType = nil
super = nil
end
if superType == "function" or (super and super.__ctype == 1) then
-- inherited from native C++ Object
cls = {}
if superType == "table" then
-- copy fields from super
for k,v in pairs(super) do cls[k] = v end
cls.__create = super.__create
cls.super = super
else
cls.__create = super
cls.ctor = function() end
end
cls.__cname = classname
cls.__ctype = 1
function cls.new(...)
local instance = cls.__create(...)
-- copy fields from class to native object
for k,v in pairs(cls) do instance[k] = v end
instance.class = cls
instance:ctor(...)
return instance
end
else
-- inherited from Lua Object
if super then
cls = {}
setmetatable(cls, {__index = super})
cls.super = super
else
cls = {ctor = function() end}
end
cls.__cname = classname
cls.__ctype = 2 -- lua
cls.__index = cls
function cls.new(...)
local instance = setmetatable({}, cls)
instance.class = cls
instance:ctor(...)
return instance
end
--扩展create方法
function cls.create(...)
return cls.new(...)
end
end
return cls
end