library-mirrors/sandbox.lua
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made sandbox survive if debug lib is not present

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kikito 2013-09-14 12:49:46 +02:00
parent 66a82c06ce
commit 48ae2844e9
1 changed files with 7 additions and 2 deletions
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sandbox.lua
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@ -104,8 +104,13 @@ local function merge(dest, source)
return dest
end
local function sethook(f, key, quota)
if type(debug) ~= 'table' or type(debug.sethook) ~= 'function' then return end
debug.sethook(f, key, quota)
end
local function cleanup()
debug.sethook()
sethook()
string.rep = string_rep
end
@ -127,7 +132,7 @@ function sandbox.protect(f, options)
error('Quota exceeded: ' .. tostring(quota))
end
debug.sethook(timeout, "", quota)
sethook(timeout, "", quota)
string.rep = nil
local ok, result = pcall(f, ...)