Manuel Simon Hirsig
91 lines
2.9 KiB
Lua
91 lines
2.9 KiB
Lua
green_t = module
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local next, setn, type, setmetatable = next, table.setn, type, setmetatable
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local wipe, recycle, table, temp_table
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local pool, pool_size, overflow_pool, tmp = {}, 0, setmetatable({}, {__mode='k'}), {}
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CreateFrame('Frame'):SetScript('OnUpdate', function()
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for t in tmp do recycle(t) end; wipe(tmp)
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end)
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function wipe(t)
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setmetatable(t, nil); setn(t, 0)
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for k in t do t[k] = nil end
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t.reset, t.reset = nil, 1
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end
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public.wipe = wipe
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function recycle(t)
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wipe(t); tmp[wipe(t)] = nil
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if pool_size < 50 then
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pool_size = pool_size + 1
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pool[pool_size] = t
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else
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overflow_pool[t] = true
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end
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end
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public.recycle = recycle
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function table()
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if pool_size > 0 then
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pool_size = pool_size - 1
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return pool[pool_size + 1]
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end
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local t = next(overflow_pool)
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if t then overflow_pool[t] = nil; return t end
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return {}
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end
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public.t.get = table
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function temp_table() local t = table(); tmp[t] = true; return t end
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public.tt.get = temp_table
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do local mt = {__metatable=false, __newindex=error}
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function public.empty.get() return setmetatable(temp_table, mt) end
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end
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do local f, mt
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f = function(_, v) if type(v) == 'table' then tmp[v] = true end return v end
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mt = {__metatable=false, __call=f, __sub=f}
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public.temp {get=function() return setmetatable(temp_table(), mt) end, set=function(t) tmp[t] = true end}
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end
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do local f, mt
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f = function(_, v) if type(v) == 'table' then tmp[v] = nil end return v end
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mt = {__metatable=false, __call=f, __sub=f}
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public.perm {get=function() return setmetatable(temp_table(), mt) end, set=function(t) tmp[t] = nil end}
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end
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do
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local SET, ARRAY, ARRAY0, TABLE = 1, 2, 3, 4
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local function insert(type)
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local chunk = 'setmetatable(t, nil); local setn, error = table.setn, error; return function(t'
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for i = 1, 98 do chunk = chunk..',a'..i end
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chunk = chunk..',overflow)'
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if type == SET then
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for i = 1, 98 do
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chunk = chunk..format('if a%d == nil then return t end t[a%d] = true;', i, i)
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end
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elseif type == ARRAY then
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chunk = chunk..'setn(t, 99); if a1 == nil then return t end t[1] = a1;'
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for i = 2, 98 do
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chunk = chunk..format('if a%d == nil then setn(t, %d); return t end t[%d] = a%d;', i, i - 1, i, i)
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end
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elseif type == ARRAY0 then
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chunk = chunk..'setn(t, 99);'
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for i = 1, 98 do chunk = chunk..format('t[%d] = a%d;', i, i) end
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elseif type == TABLE then
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for i = 1, 97, 2 do
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chunk = chunk..format('if a%d == nil then return t end t[a%d] = a%d;', i, i, i + 1)
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end
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end
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chunk = chunk..'return overflow ~= nil and error("Overflow.") or t end'
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local f = loadstring(chunk); setfenv(f, M); return f()
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end
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local function getter(type)
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local mt = {__metatable=false, __newindex=error, __call=insert(type)}
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function mt:__index(t) recycle(self); return setmetatable(mt, t) end
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return function() return setmetatable(t, mt) end
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end
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public(); S, A, A0, T = {get=getter(SET)}, {get=getter(ARRAY)}, {get=getter(ARRAY0)}, {get=getter(TABLE)}
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end |