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Unify lua table deepcopy into clone

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This commit is contained in:
emanuele-f 2018-01-03 16:05:57 +01:00
parent a945be904f
commit 35ca18e798
1 changed files with 3 additions and 17 deletions
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20
scripts/lua/modules/lua_utils.lua
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@ -3053,30 +3053,16 @@ function table.merge(a, b)
return merged
end
function table.clone(t, filter)
local clone = {}
local filter = filter or function (k, v) return true end
for k, v in pairs(t) do
if filter(k, v) then
clone[k] = v
end
end
return clone
end
-- TODO join the code with table.clone
function table.deepcopy(orig)
function table.clone(orig)
local orig_type = type(orig)
local copy
if orig_type == 'table' then
copy = {}
for orig_key, orig_value in next, orig, nil do
copy[table.deepcopy(orig_key)] = table.deepcopy(orig_value)
copy[table.clone(orig_key)] = table.clone(orig_value)
end
setmetatable(copy, table.deepcopy(getmetatable(orig)))
setmetatable(copy, table.clone(getmetatable(orig)))
else -- number, string, boolean, etc
copy = orig
end