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Restrict Lua controller interrupt IDs (#534)

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* Deprecate non-string IIDs
* Restrict tabular IIDs to proper trees
Fixes crash on recursive interrupt ID (#473)
This commit is contained in:
Vitaliy
2020-09-21 22:32:25 +03:00
committed by GitHub
parent 3202bf6786
commit 6921909100
2 changed files with 54 additions and 14 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