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Make mesecon.cmpAny symmetrical

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numzero 2020-09-12 20:59:27 +03:00
parent 9fda51b650
commit 4d4d42cd0a
1 changed files with 10 additions and 1 deletions
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11
mesecons/util.lua
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@ -193,14 +193,23 @@ function mesecon.tablecopy(obj) -- deep copy
return obj
end
-- Returns whether two values are equal.
-- In tables, keys are compared for identity but values are compared recursively.
-- There is no protection from infinite recursion.
function mesecon.cmpAny(t1, t2)
if type(t1) ~= type(t2) then return false end
if type(t1) ~= "table" and type(t2) ~= "table" then return t1 == t2 end
if type(t1) ~= "table" then return t1 == t2 end
-- Check that for each key of `t1` both tables have the same value
for i, e in pairs(t1) do
if not mesecon.cmpAny(e, t2[i]) then return false end
end
-- Check that all keys of `t2` are also keys of `t1` so were checked in the previous loop
for i, _ in pairs(t2) do
if t1[i] == nil then return false end
end
return true
end