From: Adam Strzelecki <ono@...>
Date: 2008-06-05T23:50:10+09:00
Subject: [ruby-core:17123] Re: Bytecode handling (compilation) extensions to Ruby 1.9

Just wanted to say thanks again, it works like a charm. I've reenabled  
rb_define_singleton_method(rb_cISeq, "load", iseq_s_load, -1) and it  
rocks:

--- test_vm_save_restore.rb ----------------------------
#!/usr/bin/env ruby-1.9
require 'zlib'

code = VM::InstructionSequence.compile_file 'sample.rb'

File.open "simple.rbvm", "w" do |file|
   file << Zlib::Deflate.deflate(Marshal.dump(code.to_a))
end

code = nil # Make sure we don't work with old code anymore

File.open "simple.rbvm", "r" do |file|
   code = VM::InstructionSequence.load  
Marshal.restore(Zlib::Inflate.inflate(file.read))
end

code.eval
--------------------------------------------------------

So iseq_load checking magic, version1, version2, format_type and  
rasing exception if they don't match would be enough validation to  
reenable VM::InstructionSequence.load in official repository?

Cheers,
-- 
Adam Strzelecki |: nanoant.com :|