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Manual Reference Pages  -  DEVEL::MAT::TOOL::INREFS (3)

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NAME

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

CONTENTS

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.

AUTHOR

Paul Evans <leonerd@leonerd.org.uk>
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perl v5.20.3 DEVEL::MAT::TOOL::INREFS (3) 2016-04-03

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