NAME

       "Devel::MAT::Tool::Inrefs" - annotate which SVs are referred to by others

DESCRIPTION

       This "Devel::MAT" tool annotates each SV with back-references from other SVs that refer to
       it. It follows the "outrefs" method of every heap SV and annotates the referred SVs with
       back-references pointing back to the SVs that refer to them.

SV METHODS

       This tool adds the following SV methods.

   inrefs
          @refs = $sv->inrefs

       Returns a list of Reference objects for each of the SVs that refer to this one. This is
       formed by the inverse mapping along the SV graph from "outrefs".

   inrefs_strong
   inrefs_weak
   inrefs_direct
   inrefs_indirect
   inrefs_inferred
          @refs = $sv->inrefs_strong

          @refs = $sv->inrefs_weak

          @refs = $sv->inrefs_direct

          @refs = $sv->inrefs_indirect

          @refs = $sv->inrefs_inferred

       Returns lists of Reference objects filtered by type, analogous to the various "outrefs_*"
       methods.

COMANDS

   inrefs
          pmat> inrefs defstash
          s  the hash  GLOB(%*) at 0x556e47243e40

       Shows the incoming references that refer to a given SV.

       Takes the following named options:

       --weak
           Include weak direct references in the output (by default only strong direct ones will
           be included).

       --all
           Include both weak and indirect references in the output.

AUTHOR

       Paul Evans <leonerd@leonerd.org.uk>