If i understand what you mean, you may profit of $^P as described in perlvar 
    $^P= 0x100;

    # x100
    # Provide informative "file" names for evals based on the place th
+ey were compiled.

perl -wlE "BEGIN{$^P= 0x100}eval '1+1; 1'; eval qq(\n;1+1;2)"

Useless use of a constant (2) in void context at (eval 1)[-e:1] line 1
+.
Useless use of a constant (2) in void context at (eval 2)[-e:1] line 2
+.

[download]

L*

There are no rules, there are no thumbs..
Reinvent the wheel, then learn The Wheel; may be one day you reinvent one of THE WHEELS.

In reply to Re: Changing "filename" of eval-ed code by Discipulus
in thread Changing "filename" of eval-ed code by perlancar

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