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1 | package subs; |
2 | |
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3 | our $VERSION = '1.00'; |
4 | |
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5 | =head1 NAME |
6 | |
7 | subs - Perl pragma to predeclare sub names |
8 | |
9 | =head1 SYNOPSIS |
10 | |
11 | use subs qw(frob); |
12 | frob 3..10; |
13 | |
14 | =head1 DESCRIPTION |
15 | |
16 | This will predeclare all the subroutine whose names are |
17 | in the list, allowing you to use them without parentheses |
18 | even before they're declared. |
19 | |
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20 | Unlike pragmas that affect the C<$^H> hints variable, the C<use vars> and |
21 | C<use subs> declarations are not BLOCK-scoped. They are thus effective |
22 | for the entire file in which they appear. You may not rescind such |
23 | declarations with C<no vars> or C<no subs>. |
24 | |
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25 | See L<perlmodlib/Pragmatic Modules> and L<strict/strict subs>. |
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26 | |
27 | =cut |
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28 | |
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29 | require 5.000; |
30 | |
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31 | sub import { |
32 | my $callpack = caller; |
33 | my $pack = shift; |
34 | my @imports = @_; |
35 | foreach $sym (@imports) { |
36 | *{"${callpack}::$sym"} = \&{"${callpack}::$sym"}; |
37 | } |
38 | }; |
39 | |
40 | 1; |