A RetroSearch Logo

Home - News ( United States | United Kingdom | Italy | Germany ) - Football scores

Search Query:

Showing content from https://mail.python.org/pipermail/python-dev/2004-July/046223.html below:

[Python-Dev] Proper tail recursion

[Python-Dev] Proper tail recursion [Python-Dev] Proper tail recursionMichael Chermside mcherm at mcherm.com
Thu Jul 15 19:24:53 CEST 2004
> > Well, I think I understand Jython well enough to provide the
> > assurance: Jython is (intentionally, and for good reason) designed
> > to utilize the JVM's call stack. Thus Jython cannot support tail
> > call elimination *unless* it is run on a JVM which does tail call
> > elimination.
>
> I originally thought I'd need to use gcc's tail call optimization to
> achieve my aim (since CPython works the same way), but it
> turned out a
> simple loop would suffice.  Unless Jython's implementation is
> radically
> different (i.e. it doesn't pass frame objects to a function
> that evaluates
> them) then it should be able to be implemented similarly.

Like I said, Jython uses the JVM's call stack. So it certainly doesn't
pass frame objects to a function that evaluates them... Jython
stack frames are actual Java stack frames. This is part of why Jython
does such an incredibly good job of integrating tightly with Java --
Java any Jython functions (methods) can call each other freely because
they're practically the same thing.

-- Michael Chermside

More information about the Python-Dev mailing list

RetroSearch is an open source project built by @garambo | Open a GitHub Issue

Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo

HTML: 3.2 | Encoding: UTF-8 | Version: 0.7.4