Re^2: Why no warnings for 1 in void context?

[tlm]

in reply to Re: Why no warnings for 1 in void context?
in thread Why no warnings for 1 in void context?

1 while ....

That makes sense. Thanks.

NB - the 1 in a require isn't evaluated in a void context...

It is if, as I wrote, you syntax-check I did not write about the normal situation in which a module is require-ed; I referred to the case when one syntax-checks the module's file with perl -wc, e.g.:

% echo 1 > Foo.pm
% perl -wc Foo.pm
Foo.pm syntax OK
% echo 2 > Foo.pm
% perl -wc Foo.pm 
Useless use of a constant in void context at Foo.pm line 1.
Foo.pm syntax OK

(Hey, I did say it was a tortured rationale!)

But yes, normally, when a module is require'd the 1 (or whatever) is not evaluated in a void context.

Update: I fixed the wording, in response to ikegami's reply. The question of whether doing a syntax check on a module with perl -wc somehow turns it into a script is too metaphysical even for me.

[ikegami]

It is if, as I wrote, you syntax-check the module's file with perl -wc, e.g.:

Then it's no longer a module, it's just a script. The parent poster did say "in a require".

>echo 2 > Foo.pm

>perl -we "use Foo;"

>perl -cwe "use Foo;"
-e syntax OK