48 lines
1.3 KiB
Lua
48 lines
1.3 KiB
Lua
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XReadOnlyTable = XReadOnlyTable or {}
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local NeedSetReadonly = CS.XLuaEngine.LuaReadonlyTableMode ~= CS.XMode.Release
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XReadOnlyTable.HotLoad = false
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XReadOnlyTable.Create = function(t)
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if not NeedSetReadonly or XReadOnlyTable.HotLoad then
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-- release 模式运行
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return t
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end
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for x, y in pairs(t) do
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if type(x) == "table" then
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if type(y) == "table" then
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t[XReadOnlyTable.Create(x)] = XReadOnlyTable.Create(y)
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else
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t[XReadOnlyTable.Create(x)] = y
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end
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elseif type(y) == "table" then
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t[x] = XReadOnlyTable.Create(y)
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end
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end
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local mt = {
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__metatable = "readonly table",
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__index = t,
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__newindex = function(t,k,v)
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if XReadOnlyTable.HotLoad then
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rawset(t,k,v)
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else
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XLog.Error("attempt to update a readonly table")
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end
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end,
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__len = function()
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return #t
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end,
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__pairs = function()
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local function stateless_iter(tbl, k)
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local nk, nv = next(tbl, k)
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if nk then return nk, nv end
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end
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return stateless_iter, t, nil
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end
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}
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return setmetatable({}, mt)
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end
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