Re: lua_load modifies the stack

[Marc Balmer <marc@...>]

Am 22.04.11 15:35, schrieb Peter Cawley:
> On Fri, Apr 22, 2011 at 2:33 PM, Marc Balmer <marc@msys.ch> wrote:
>> I have a table on the stack, then I call lua_load() to load a function.
>>  After lua_load() completes without an error, I have a function on top
>> of the stack.  But my table, which should now be at position -2, is
>> gone.  There is a nil value there.
>>
>> Hwo can that happen?  Is that some memory corruption in my lua_Reader
>> function or are there situations where lua_load() modifies the stack in
>> such a way?
> 
> What is your reader function doing? It shares the view of the stack
> with the caller of lua_load, it doesn't get its own stack frame.

The lua_Reader function does not touch the stack, it merely returns Lua
source code piece by piece from a static buffer.