Re^5: How to enforce void context in Reply?

But doesn't just calling foo() in void context
foo();
enforce void context upon the invocation of foo()? What need for anything else?

Is it ever possible to get a value directly returned from a subroutine invoked in void context, whether "enforced" or "natural" (as in the example above)? (Of course, it's always possible to indirectly return values from subroutines invoked in void context.)

Give a man a fish: <%-(-(-(-<

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Re^6: How to enforce void context in Reply? by Anonymous Monk on May 19, 2015 at 14:55 UTC
What need for anything else? True, but it can still happen by accident that a sub is executed in non-void context when the programmer wanted it in void context, as shown above in `sub calls_it_1`. Also docdurdee mentioned a REPL, so my guess would be that the REPL puts every line entered at the prompt into some non-void context.	[reply] [d/l]
Re^7: How to enforce void context in Reply? by AnomalousMonk (Archbishop) on May 19, 2015 at 15:25 UTC
All the more reason to avoid implicit return statements. `sub Sa { foo(); # implicit return: foo() called in Sa() invocation context +. } sub Sb { return foo(); # explicit return: foo() called in Sb() invocation +context. } sub Sc { foo(); # foo() called in void context. no question. return; }` [download] IMHO, the `Sa()` form should always be avoided. And also IMH (but very emphatic!) O, one should certainly avoid weird "implicit return of 1" statements which are no more than maintainence pitfalls. Give a man a fish: `<%-(-(-(-<`	[reply] [d/l] [select]
Re^8: How to enforce void context in Reply? by ikegami (Patriarch) on May 21, 2015 at 14:11 UTC
IMHO, the Sa() form should always be avoided. Why? I can't think of a single problem that solves.	[reply]
Re^9: How to enforce void context in Reply? by AnomalousMonk (Archbishop) on May 21, 2015 at 14:42 UTC
Re^10: How to enforce void context in Reply? by ikegami (Patriarch) on May 21, 2015 at 17:53 UTC
Re^8: How to enforce void context in Reply? by Anonymous Monk on May 19, 2015 at 21:17 UTC
I agree, and so does Perl::Critic::Policy::Subroutines::RequireFinalReturn.	[reply]
Re^8: How to enforce void context in Reply? ( 1; is shorter than return; ) by Anonymous Monk on May 20, 2015 at 01:00 UTC
:) I missed it too but Reply is reply - read, eval, print, loop, yay! 1; is shorter than return;	[reply]