Hi vim-dev list and Bram.
I found a problem and a future concern on if_lua. And I wrote an
attached patch to fix those. Please check it.
Procedure to reproduce the problem is like this:
> let x = { 'v': 123 }
> echo x
> => {'v': 123 }
>
> lua x1 = vim.eval('x')
> lua print(x1.v)
> => 123
>
> lua x1.v = 999
>
> echo x
> => {'v': 123}
>
> lua x2 = vim.eval('x')
> lua print(x2.v)
> => 999
Last printed '999' is not expected, it must be '123'.
A future concern is LUA_ENVIRONINDEX. LUA_ENVIRONINDEX is removed from
Lua 5.2 entirely. To support Lua 5.2 we must stop to use
LUA_ENVIRONINDEX.
Fortunately, a cause of the problem is confused references in
LUA_ENVIRONINDEX. So in my patch, I subsititute LUA_REGISTRYINDEX for
LUA_ENVIRONINDEX, and separate some tables depend on its usage in
LUA_REGISTRYINDEX.
Thanks.
--
MURAOKA Taro <koron.kaor...@gmail.com>
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patch-lua_fix_confused_references.diff
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