That was nice food for thought.
package deprecated;
use constant EVAL_CODE => <<'END_CODE';
sub %1$s::INIT {
my $overridden = \&%2$s;
*%2$s = sub {
require Carp;
Carp::carp('%2$s() is deprecated');
*%2$s = $overridden;
goto &$overridden;
};
}
END_CODE
sub import {
my $class = shift;
my $pkg = caller;
eval join '', map sprintf(EVAL_CODE, $pkg, "$pkg\::$_"), @_;
}
1;
It should be obvious what is happening here, if not just change the eval to a print.
Makeshifts last the longest.
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