On 15/07/2015 10:13, Gregory Ewing wrote:
Chris Angelico wrote:
I'm still interested in the explicit "replace current stack frame with
this call" operation. Calling it "goto" seems wrong, as most languages
with goto restrict it to _within_ a function,
This just suggests to me is that most language designers
are not very imaginative. :-)
A tail call *is* a goto. That's how you implement one in
assembly language -- you write a jump instruction instead
of a call instruction. The jump doesn't have to be to
the same function.
IIRC the realms of the C setjmp and longjmp. I'm just wondering out
aloud if anybody has ever tried playing with cPython using these, or
whether the code and/or Python itself is just too complex to allow this
to even be tried, let alone succeed.
--
My fellow Pythonistas, ask not what our language can do for you, ask
what you can do for our language.
Mark Lawrence
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