NAME

Devel::MAT::Tool::Reachability - analyse how SVs are reachable

DESCRIPTION

This Devel::MAT tool determines which SVs are reachable via any known roots and which are not. For reachable SVs, they are classified into several broad categories:

SVs that directly make up the symbol table.
SVs that form the padlist of functions or store the names of lexical variables.
SVs that hold the value of lexical variables.
User data stored in package globals, lexical variables, or referenced recursively via structures stored in them.
Miscellaneous other SVs that are used to implement the internals of the interpreter.

SV METHODS

This tool adds the following SV methods.

$r = $sv->reachable

Returns true if the SV is reachable from a known root.

AUTHOR

Paul Evans <leonerd@leonerd.org.uk>