如何使用RubyVM将ruby代码编译为带需求源文件的字节码?

问题描述

我有2个ruby源文件,例如:

A.rb

require "B"

foo

B.rb

 def foo()
  ..
 end

现在我使用代码将A编译为字节码(Ruby v2.3.3):

byte_code = RubyVM::InstructionSequence.compile_file "A.rb"
File.binwrite "A.byte",byte_code.to_binary

当我运行字节码时:

byte_code_in_binary = IO.binread "A.byte"
instruction_from_byte_code = RubyVM::InstructionSequence.load_from_binary byte_code_in_binary
instruction_from_byte_code.eval

当时的消息是:

   .... in `require': cannot load such file -- B (LoadError)

如果我将B.rb编译为字节码,那么A.byte如何加载B.byte?还是有另一种方式将整个ruby项目编译为字节码并运行? Jruby或某些工具可以实现它吗?谢谢。

解决方法

暂时解决的问题。答案是:创建一个“代码外壳”以加载二进制文件,看起来像:

filelist.rb

def write_code(fname,load_filename)
    str = 
'byte_code_in_binary = IO.binread("'+load_filename+'")
instruction_from_byte_code = RubyVM::InstructionSequence.load_from_binary byte_code_in_binary
instruction_from_byte_code.eval'
    f = open(fname,"wb")
    f.write(str)
    f.close()
end

$LOAD_PATH.unshift(File.dirname(__FILE__))
require "filelist"
Dir.mkdir($folder)
byte_code = RubyVM::InstructionSequence.compile_file $main_entry
File.binwrite $folder + "/some_binary_file_name",byte_code.to_binary

$required_files.each do |f|
    write_code($folder + "/" + f,some_required_binary_names)
    byte_code = RubyVM::InstructionSequence.compile_file f
    File.binwrite $folder + "/" + some_required_binary_names,byte_code.to_binary
end

现在正在编译源代码,它看起来像:

byte_code_in_binary = IO.binread("file_1_binary_name") <-- it was real compiled binary file_1.rb
instruction_from_byte_code = RubyVM::InstructionSequence.load_from_binary byte_code_in_binary
instruction_from_byte_code.eval

确定,现在需要ruby脚本文件如下:

file_1.rb

<meta name="viewport" content="width=device-width,initial-scale=1.0">

现在我们可以使用“ VM二进制模式”加载需求文件。

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