Careful before saying that no such facility exists in Exporter. There are, in fact, at least 3 ways to do this while using Exporter.
  1. Use the export_to_level method.
  2. Do like Carp does and have flags listed in @EXPORT_FAIL and processed in an export_fail function.
  3. Write a custom import that looks like this: 
    sub import {
  my $self = shift;
  my @out;
  foreach (@_) {
    if (ref($_)) {
      # Do one thing
    }
    else {
      push @out, $_;
    }
  }
  @_ = ($self, @out);
  goto &Exporter::import;
}

    [download]

UPDATE
Two quick notes. First of all I had put the case of Exporter wrong. Oops. Secondly the point here is that you can preprocess the list of arguments being imported in any way you please before Exporter sees them. (eg Take references out of the list and do something useful with them.)

In reply to Re (tilly) 1: Passing parameters to a module's import function by tilly
in thread Passing parameters to a module's import function by rrwo

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