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Re^3: {Perl6} Macros and native compilation

by rg0now (Chaplain)
on Apr 11, 2005 at 12:42 UTC ( #446581=note: print w/replies, xml ) Need Help??

in reply to Re^2: {Perl6} Macros and native compilation
in thread {Perl6} Macros and native compilation

In my understanding, you absolutely can do this with Perl 6 macros. If you want $foo to be avaluated at compile time, you just return a string as you did. Contrariwise, if you return a closure (maybe using the simple my macro this { self{$foo} } syntax?), you get "a generic routine that is to be immediately inlined, treating the closure as a template", such that "any variable not referring back to a parameter is left alone, so that your template can declare its own lexical variables, or refer to a package variable". This way, $foo will be evaluated at runtime...

But, as always with Perl 6, don't take my words for granted...:-)


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[1nickt]: Corion I assume you are talking about Retry? Attempt doesn;t offer callbacks and has a much simpler interface. (Also written by someone I trust...)
[perldigious]: I train for long portaging/rowing trips by carrying my kayak to the river about a half mile from my house 2-3 times a week depending on weather... but due to a lingering winter, I haven't had long to train this year.

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