I don't think it's possible without some XS code, but the information appears to be present. 

>perl -MDevel::Peek -e"sub X() { time } Dump \&X"
  SV = PVCV(0x182647c) at 0x1831628
    FLAGS = (POK,pPOK)

>perl -MDevel::Peek -e"sub X() { 1    } Dump \&X"
  SV = PVCV(0x1833acc) at 0x1831688
    FLAGS = (POK,pPOK,CONST)

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(Irrelevant bits filtered out)

In reply to Re^5: list all subs in a package by ikegami
in thread list all subs in a package by sflitman

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