sub --> macro optimization

Introduction:

while discussing fortranesque three-way comparative operators,
I imagined what I believe may be a workable syntax for differentiating
an in-place replacement from a callable subrouting, for Perl.

Idea:

Instead of introducing a new keyword, have any sub consisting of
only one expression get replaced in the op tree with that expression,
instead of a subroutine-calling mechanism.  Complex in-place-expandables
could be implemented with

	sub foo{ do {
		...
	}};

Possible problem:

redefinition of routines. The inline-expanded routine name could either 
maintain a list of everywhere it appears in the op tree, for
rereplacement, or the in-place replacement optimization could only happen
when we are certain that *foo isn't going to get assigned to from
any coderefs.





-- 
                                           David Nicol 816.235.1187
free Dmitry Skylarov

• sub --> macro optimization by David L. Nicol
• Re: sub --> macro optimization by Michael G Schwern
• Re: sub --> macro optimization by Mark-Jason Dominus
• Re: sub --> macro optimization by Michael G Schwern
• Re: sub --> macro optimization by Dan Sugalski
• Re: sub --> macro optimization by David L. Nicol
• Re: sub --> macro optimization by Arthur Bergman