summaryrefslogtreecommitdiff
path: root/tool/ruby_vm/scripts/insns2vm.rb
diff options
context:
space:
mode:
Diffstat (limited to 'tool/ruby_vm/scripts/insns2vm.rb')
-rw-r--r--tool/ruby_vm/scripts/insns2vm.rb88
1 files changed, 88 insertions, 0 deletions
diff --git a/tool/ruby_vm/scripts/insns2vm.rb b/tool/ruby_vm/scripts/insns2vm.rb
new file mode 100644
index 0000000..b1c604b
--- /dev/null
+++ b/tool/ruby_vm/scripts/insns2vm.rb
@@ -0,0 +1,88 @@
+#! /your/favourite/path/to/ruby
+# -*- mode: ruby; coding: utf-8; indent-tabs-mode: nil; ruby-indent-level: 2 -*-
+# -*- frozen_string_literal: true; -*-
+# -*- warn_indent: true; -*-
+#
+# Copyright (c) 2017 Urabe, Shyouhei. All rights reserved.
+#
+# This file is a part of the programming language Ruby. Permission is hereby
+# granted, to either redistribute and/or modify this file, provided that the
+# conditions mentioned in the file COPYING are met. Consult the file for
+# details.
+
+require 'optparse'
+require_relative '../controllers/application_controller.rb'
+
+def router argv
+ targets = generate_parser.parse argv
+ return targets.map do |i|
+ next ApplicationController.new.generate i
+ end
+end
+
+def generate_parser
+ OptionParser.new do |this|
+ this.on "-I", "--srcdir=DIR", <<~'end'
+ Historically this option has been passed to the script. This is
+ supposedly because at the beginnig the script was placed outside
+ of the ruby source tree. Decades passed since the merge of
+ YARV, now I can safely assume this feature is obsolescent. Just
+ ignore the passed value here.
+ end
+
+ this.on "-L", "--vpath=SPEC", <<~'end'
+ Likewise, this option is no longer supported.
+ end
+
+ this.on "--path-separator=SEP", /\A(?:\W\z|\.(\W).+)/, <<~'end'
+ Old script says this option is a "separator for vpath". I am
+ confident we no longer need this option.
+ end
+
+ this.on "-Dname", "--enable=name[,name...]", Array, <<~'end'
+ This option used to override VM option that is defined in
+ vm_opts.h. Now it is officially unsupported because vm_opts.h to
+ remain mismatched with this option must break things. Just edit
+ vm_opts.h directly.
+ end
+
+ this.on "-Uname", "--disable=name[,name...]", Array, <<~'end'
+ This option used to override VM option that is defined in
+ vm_opts.h. Now it is officially unsupported because vm_opts.h to
+ remain mismatched with this option must break things. Just edit
+ vm_opts.h directly.
+ end
+
+ this.on "-i", "--insnsdef=FILE", "--instructions-def", <<~'end'
+ This option used to specify alternative path to insns.def. For
+ the same reason to ignore -I, we no longer support this.
+ end
+
+ this.on "-o", "--opt-operanddef=FILE", "--opt-operand-def", <<~'end'
+ This option used to specify alternative path to opt_operand.def.
+ For the same reason to ignore -I, we no longer support this.
+ end
+
+ this.on "-u", "--opt-insnunifdef=FILE", "--opt-insn-unif-def", <<~'end'
+ This option used to specify alternative path to
+ opt_insn_unif.def. For the same reason to ignore -I, we no
+ longer support this.
+ end
+
+ this.on "-C", "--[no-]use-const", <<~'end'
+ We use const whenever possible now so this option is ignored.
+ The author believes that C compilers can constant-fold.
+ end
+
+ this.on "-d", "--destdir", "--output-directory=DIR", <<~'begin' do |dir|
+ THIS IS THE ONLY OPTION THAT WORKS today. Change destination
+ directory from the current working directory to the given path.
+ begin
+ Dir.chdir dir
+ end
+
+ this.on "-V", "--[no-]verbose", <<~'end'
+ Please let us ignore this and be modest.
+ end
+ end
+end