Re: LuaIDE and Lua 5.1

[Chris Marrin <chris@...>]

Roberto Ierusalimschy wrote:
> On Sat, Mar 04, 2006 at 10:57:17AM -0800, Chris Marrin wrote:
>
> > I am porting LuaIDE to Lua 5.1 and have found a function 
> > lua_getlineinfo() that was added to the 5.0 Lua interpreter included 
> > with that source. I see that 5.1 has a new 'L' flag passed to 
> > lua_getinfo() that appears to do the same thing or something similar. 
> > But I can't find any documentation of this flag in the released docs.
> >
> > Can anyone tell me what this flag is supposed to do, or if it is 
> > documented anywhere?
>
>
> Sorry; it should be in the manual:
>
> This option pushes onto the stack a table whose indices are the numbers
> of the lines that are valid on the function. (A valid line is a line
> with some associated code, that is, a line where you can put a break
> point.  Non-valid lines include empty lines and comments.)

Thanks. This is very similar to what LuaIDE is doing. But this only gets 
the line numbers for the code inside the given function. If this 
function contains other functions (as listed in the Proto::p array), you 
don't get the line numbers for those.

LuaIDE returns the line numbers doing a recursive search through the 
contained functions. This allows it to know which lines are valid to put 
breakpoints on, what the next line number is for stepping, etc.

But I was not able to find any function in Lua 5.1 which allowed access 
to the functions contained within a given function. Is there any way to 
do this in 5.1?

--
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