Class: Cfg2asm::Commands

Inherits:
Object
  • Object
show all
Defined in:
lib/cfg2asm/commands.rb

Overview

Implementations of the command-line commands that you can run in cfg2asm.

Instance Method Summary collapse

Constructor Details

#initialize(out) ⇒ Commands

Returns a new instance of Commands.



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# File 'lib/cfg2asm/commands.rb', line 7

def initialize(out)
  @out = out
end

Instance Method Details

#cfg2asm(*args) ⇒ Object 



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# File 'lib/cfg2asm/commands.rb', line 11

def cfg2asm(*args)
  case args.first
  when nil, 'help', '-h', '--help', '-help'
    args = args.drop(1)
    raise ArgumentError, "unexpected arguments #{args.join(' ')}" unless args.empty?

    @out.puts 'cfg2asm file.bgv...'
    @out.puts '            --no-comments'
    @out.puts '        --help'
    @out.puts '        --version'
  when 'version', '-v', '-version', '--version'
    args = args.drop(1)
    version(*args)
  else
    comments = true
    files = []

    until args.empty?
      arg = args.shift
      if arg.start_with?('-')
        case arg
        when '--no-comments'
          comments = false
        else
          raise ArgumentError, "unknown option #{arg}"
        end
      else
        files.push arg
      end
    end

    files.each_with_index do |file, n|
      parser = Cfg2asm::CFG::CFGParser.new(@out, file)
      parser.skip_over_cfg 'After code installation'
      nmethod = parser.read_nmethod

      disassembler = Cfg2asm::CFG::Disassembler.new(@out)
      @out.puts if n.positive?
      @out.puts "[#{file}]"
      disassembler.disassemble(nmethod, comments)
    end
  end
end

#version(*args) ⇒ Object

Prints the version.

Raises:

  • (ArgumentError) 


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# File 'lib/cfg2asm/commands.rb', line 56

def version(*args)
  raise ArgumentError, "unexpected arguments #{args.join(' ')}" unless args.empty?

  @out.puts "cfg2asm #{VERSION}"
end