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101 lines
3.8 KiB
Ruby
101 lines
3.8 KiB
Ruby
#! /your/favourite/path/to/ruby
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# -*- Ruby -*-
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# -*- frozen_string_literal: true; -*-
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# -*- warn_indent: true; -*-
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#
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# Copyright (c) 2017 Urabe, Shyouhei. All rights reserved.
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#
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# This file is a part of the programming language Ruby. Permission is hereby
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# granted, to either redistribute and/or modify this file, provided that the
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# conditions mentioned in the file COPYING are met. Consult the file for
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# details.
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require 'optparse'
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require_relative '../controllers/application_controller.rb'
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module RubyVM::Insns2VM
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def self.router argv
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options = { destdir: nil, basedir: nil }
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targets = generate_parser(options).parse argv
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return targets.map do |i|
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next ApplicationController.new.generate i, options[:destdir], options[:basedir]
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end
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end
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def self.generate_parser(options)
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OptionParser.new do |this|
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this.on "-I", "--srcdir=DIR", <<-'end'
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Historically this option has been passed to the script. This is
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supposedly because at the beginning the script was placed
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outside of the ruby source tree. Decades passed since the merge
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of YARV, now I can safely assume this feature is obsolescent.
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Just ignore the passed value here.
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end
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this.on "-L", "--vpath=SPEC", <<-'end'
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Likewise, this option is no longer supported.
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end
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this.on "--path-separator=SEP", /\A(?:\W\z|\.(\W).+)/, <<-'end'
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Old script says this option is a "separator for vpath". I am
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confident we no longer need this option.
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end
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this.on "-Dname", "--enable=name[,name...]", Array, <<-'end'
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This option was used to override VM option that is defined in
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vm_opts.h. Now it is officially unsupported because vm_opts.h to
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remain mismatched with this option must break things. Just edit
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vm_opts.h directly.
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end
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this.on "-Uname", "--disable=name[,name...]", Array, <<-'end'
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This option was used to override VM option that is defined in
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vm_opts.h. Now it is officially unsupported because vm_opts.h to
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remain mismatched with this option must break things. Just edit
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vm_opts.h directly.
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end
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this.on "-i", "--insnsdef=FILE", "--instructions-def", <<-'end'
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This option was used to specify alternative path to insns.def. For
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the same reason to ignore -I, we no longer support this.
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end
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this.on "-o", "--opt-operanddef=FILE", "--opt-operand-def", <<-'end'
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This option was used to specify alternative path to opt_operand.def.
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For the same reason to ignore -I, we no longer support this.
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end
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this.on "-u", "--opt-insnunifdef=FILE", "--opt-insn-unif-def", <<-'end'
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This option was used to specify alternative path to
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opt_insn_unif.def. For the same reason to ignore -I, we no
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longer support this.
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end
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this.on "-C", "--[no-]use-const", <<-'end'
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We use const whenever possible now so this option is ignored.
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The author believes that C compilers can constant-fold.
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end
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this.on "-d", "--destdir", "--output-directory=DIR", <<-'begin' do |dir|
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THIS IS THE ONLY OPTION THAT WORKS today. Change destination
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directory from the current working directory to the given path.
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begin
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raise "directory was not found in '#{dir}'" unless Dir.exist?(dir)
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options[:destdir] = dir
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end
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this.on "--basedir=DIR", <<-'begin' do |dir|
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Change the base directory from the current working directory
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to the given path. Used for searching the source template.
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begin
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raise "directory was not found in '#{dir}'" unless Dir.exist?(dir)
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options[:basedir] = dir
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end
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this.on "-V", "--[no-]verbose", <<-'end'
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Please let us ignore this and be modest.
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end
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end
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end
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private_class_method :generate_parser
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end
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