1 files changed, 70 insertions, 0 deletions
diff --git a/tool/ruby_vm/models/trace_instruction.rb b/tool/ruby_vm/models/trace_instruction.rb
new file mode 100644
index 0000000000..6a3ad53c44
--- /dev/null
+++ b/tool/ruby_vm/models/trace_instruction.rb
@@ -0,0 +1,70 @@
+# -*- Ruby -*-
+# -*- 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_instruction'
+
+class RubyVM::TraceInstruction
+  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::BareInstruction.all +
+                RubyVM::OperandsUnification.all +
+                RubyVM::InstructionsUnification.all).map {|i| new(i) }
+
+  def self.all
+    @instances
+  end
+end