gistfile1.txt

[aaron@higgins ~]$ irb
irb(main):001:0> File.write('hello.rb', 'class Foo; def bar; 1 + 1; end end')
=> 34
irb(main):002:0> RubyVM::InstructionSequence.compile_file 'hello.rb'
=> <RubyVM::InstructionSequence:<main>@hello.rb>
irb(main):003:0> puts _.disasm
== disasm: <RubyVM::InstructionSequence:<main>@hello.rb>================
0000 trace            1                                               (   1)
0002 putspecialobject 3
0004 putnil           
0005 defineclass      :Foo, <class:Foo>, 3
0009 leave            
== disasm: <RubyVM::InstructionSequence:<class:Foo>@hello.rb>===========
0000 trace            2                                               (   1)
0002 trace            1
0004 putspecialobject 1
0006 putspecialobject 2
0008 putobject        :bar
0010 putiseq          bar
0012 send             :"core#define_method", 3, nil, 0, <ic:0>
0018 trace            4
0020 leave            
== disasm: <RubyVM::InstructionSequence:bar@hello.rb>===================
0000 trace            8                                               (   1)
0002 trace            1
0004 putobject        1
0006 putobject        1
0008 opt_plus         <ic:1>
0010 trace            16
0012 leave            
=> nil
irb(main):004:0>