gistfile1.txt

irb(main):009:0> puts RubyVM::InstructionSequence.new("class Person;def to_s;'bob';end;end;person=Person.new;person.to_s").disassemble
== disasm: <RubyVM::InstructionSequence:<compiled>@<compiled>>==========
local table (size: 2, argc: 0 [opts: 0, rest: -1, post: 0, block: -1] s1)
[ 2] person     
0000 trace            1                                               (   1)
0002 putspecialobject 3
0004 putnil           
0005 defineclass      :Person, <class:Person>, 0
0009 pop              
0010 trace            1
0012 getinlinecache   19, <ic:0>
0015 getconstant      :Person
0017 setinlinecache   <ic:0>
0019 send             :new, 0, nil, 0, <ic:1>
0025 setlocal         person
0027 trace            1
0029 getlocal         person
0031 send             :to_s, 0, nil, 0, <ic:2>
0037 leave            
== disasm: <RubyVM::InstructionSequence:<class:Person>@<compiled>>======
0000 trace            2                                               (   1)
0002 trace            1
0004 putspecialobject 1
0006 putspecialobject 2
0008 putobject        :to_s
0010 putiseq          to_s
0012 send             :"core#define_method", 3, nil, 0, <ic:0>
0018 trace            4
0020 leave            
== disasm: <RubyVM::InstructionSequence:to_s@<compiled>>================
0000 trace            8                                               (   1)
0002 trace            1
0004 putstring        "bob"
0006 trace            16
0008 leave