1 files changed, 71 insertions, 0 deletions
diff --git a/tool/ruby_vm/models/trace_instructions.rb b/tool/ruby_vm/models/trace_instructions.rb
new file mode 100644
index 0000000000..a99a933ac7
--- /dev/null
+++ b/tool/ruby_vm/models/trace_instructions.rb
@@ -0,0 +1,71 @@
+#! /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_relative '../helpers/c_escape'
+require_relative 'bare_instructions'
+
+class RubyVM::TraceInstructions
+  include RubyVM::CEscape
+
+  attr_reader :name
+
+  def initialize orig:
+    @orig = orig
+    @name = as_tr_cpp "trace @ #{@orig.name}"
+  end
+
+  def pretty_name
+    return sprintf "%s(...)(...)(...)", @name
+  end
+
+  def jump_destination
+    return @orig.name
+  end
+
+  def bin
+    return sprintf "BIN(%s)", @name
+  end
+
+  def width
+    return @orig.width
+  end
+
+  def operands_info
+    return @orig.operands_info
+  end
+
+  def rets
+    return ['...']
+  end
+
+  def pops
+    return ['...']
+  end
+
+  def attributes
+    return []
+  end
+
+  def has_attribute? *;
+    return false
+  end
+
+  private
+
+  @instances = RubyVM::Instructions.map {|i| new orig: i }
+
+  def self.to_a
+    @instances
+  end
+
+  RubyVM::Instructions.push(*to_a)
+end