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Ruby's "yield" and "blocks" are not coroutines

by LanX (Chancellor)
on Apr 23, 2013 at 14:51 UTC ( #1030165=note: print w/replies, xml ) Need Help??


in reply to Re: RFC: Simulating Ruby's "yield" and "blocks" in Perl
in thread RFC: Simulating Ruby's "yield" and "blocks" in Perl

Sorry I'm tired of repeating it, but even if Rubyistas claim it, yield / blocks are not coroutines, they are syntactic sugar for callbacks.

And I think Matz is to blame for choosing the misleading term "yield" in this context.

(Like Larry is to blame for some misleading "List" <-> "Array" terminology)

And BTW Perl5 has coroutines, passing parameters is just ugly to implement and I'm not sure about the performance gain.

Go take a look at the goto &sub syntax.

Cheers Rolf

( addicted to the Perl Programming Language)

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[Discipulus]: who make the invitation? the program?!?
[choroba]: it's historical
[erix]: pull requests
[choroba]: originally, you sent a pull request to someone by email, i.e. you asked them to pull from your repo
[Discipulus]: if is the author of a patch, is more like a 'request to push' into rather than a pull request..
[choroba]: as it's considered unpolite to push to someone else's repo
[choroba]: and in fact, you don't push into the target repo, you push into your branch of your fork
[choroba]: the maintainer of the upstream repo than "merges" the pull request, i.e. they pull from your fork into the upstream
[Discipulus]: ' i.e. you asked them to pull from your repo' =~ I (subj) want to push
[Discipulus]: chorobayour words are reasonable

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