In [Playing with TclOO], [Richard Suchenwirth] provided a method to dump the class and variables of an object:
 define oo::object method dump {{pat *}} {
    set res [list class [info object class [self]]]
    foreach i [info object vars [self] $pat] {
        my variable $i
        lappend res $i [set $i]
    }
    set res
 }

This page should explore ways to serialize/unserialize [TclOO] objects.

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