New control structure "Do Next..."

[Benoît Minisini <benoit.minisini@xxxxxxxxxxxxxxxx>]

Hi,

I have just added a new control structure to the Gambas language:

  Do Next <statement>

It executes the statement "later", i.e. at the next run of the event loop.

To do the same thing, you had to use a Timer before. Something like that:

  hTimer = New Timer As "RunLater"
  hTimer.Trigger

  ...

  Public Sub RunLater_Timer()

    <statement>

  End

I'm not yet fully satisfied with that syntax, even if it does not 
introduce new keywords, which is always a positive thing.

But I may do something else:

  Do <statement> Next

  Do <statement> Later

Or more powerful:

  Do
    <statement 1>
    <statement 2>
    ...
  Next

Internally, the <statement> is directly compiled inside the function, 
and is run in a special context where there is no local variable.

You can't use the local variables of the function inside <statement> at 
the moment.

This is not a lambda expression, for those who know what it is.

And I think you can still do something like 'Do Next Goto ...' which 
must be forbidden too. So a work in progress...

Do not hesitate to tell what you think and give ideas.

Regards,

--
Benoît Minisini.