Re: embedded lua in web based REPL

[Roberto Ierusalimschy <roberto@...>]

> On Sat, Mar 20, 2010 at 6:30 AM, Roberto Ierusalimschy
> <roberto@inf.puc-rio.br> wrote:
> >> As a related question, is it legal in Lua 5.2 to use coroutine.yield
> >> from within a hook callback? [...]
> >
> > This was already legal in 5.1.
> >
> > -- Roberto
> 
> Odd; I tried using it (in both 5.1.4 and 5.2 work2) yesterday, and
> coroutine.yield returned "attempt to yield across metamethod/C-call
> boundary". Here's the code I used:
> 
> ----
> co = coroutine.create(function() for i=1,100 do print(i) end end)
> debug.sethook(co, function() print("hooked") coroutine.yield() end, "", 1)
> print(coroutine.resume())
> ----
> Output:
> hooked
> false attempt to yield across metamethod/C-call boundary

I meant calling yield from the "real" hook, in C.

-- Roberto