Files
aux-addon-ClassicAPI/libs/green_t.lua
T
Manuel Simon Hirsig 8be659f4b4 backup
2016-09-04 01:29:57 +02:00

92 lines
2.8 KiB
Lua

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