Re: FFI enums are now always boxed
- From: Daurnimator <quae@xxxxxxxxxxxxxxx>
- To: luajit@xxxxxxxxxxxxx
- Date: Fri, 20 Jul 2012 14:58:35 +1000
On 18 July 2012 07:08, Mike Pall <mike-1207@xxxxxxxxxx> wrote:
> This change may break compatibility with existing programs using
> the FFI, if you pass an enum to a non-FFI function. Hopefully this
> is not very common. You may need to explicitly convert the enum to
> a plain Lua number with tonumber(). Or better declare the field or
> return value as an integer, if it's usually treated like a number.
>
Thought I should note here that I hit an issue with this:
You can't use a boxed enum as a table index.
I had a callback that received an enum; and it was indexing a table to
dispatch to correct function.
(Now I just wrapped it in tonumber)
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