Re: yield across metamethod/C-call boundary

[Stefan Brantschen <sbr@...>]

On 16 Aug 2006, at 23:00, Mike Pall wrote:

> A C hook function is called without creating a Lua stack frame.
> This of course means it's not visible in the stack trace.

Yes, right, I should have thought of that. Thanks.

What works, though, is resuming in a hook (and yielding to it), like so

local function proxy()
 for i = 1, 2 do
  print(debug.traceback())
  coroutine.yield()
 end
end
local pr = coroutine.create(proxy)

local function hook(event, line)
 print(debug.traceback())
 coroutine.resume(pr)
end

local mp = assert(loadfile("test.lua"))
local cr = coroutine.create(mp)
debug.sethook(cr, hook, "clr")

print(coroutine.resume(cr))

(The resume in 'hook' will try to resume the dead coroutine 'pr' a  
few times after it has terminated in this simple example.)

Thanks for your support.
- Stefan