A crash bug in v5.1.4
[
Date Prev][
Date Next][
Thread Prev][
Thread Next]
[
Date Index]
[
Thread Index]
- Subject: A crash bug in v5.1.4
- From: mark@...
- Date: 2009年6月27日 02:22:46 -0400 (EDT)
Hi everyone (first time posting here...),
while experimenting with adding accessor functions to Lua I discovered a
crash bug in v5.1.4 of the VM:
=== begin code===
local grandparent = {}
grandparent.__newindex = function(s,_,_) print(s) end
local parent = {}
parent.__newindex = parent
setmetatable(parent, grandparent)
local child = setmetatable({}, parent)
child.foo = _ --> CRASH!
=== end code ===
I've tracked down the cause of this bug and created a patch to fix it, you
can find it at the end of my article on accessors:
http://www.ppl-pilot.com/Lua/LuaAccessors.html
Cheers,
Mark Feldman