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+%# -*- mode:c; style:ruby; coding: utf-8; indent-tabs-mode: nil -*-
+%# 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.
+CONSTFUNC(MAYBE_UNUSED(static int insn_len(VALUE insn)));
+
+int
+insn_len(VALUE i)
+{
+ static const char t[] = {
+% RubyVM::Instructions.each_slice 16 do |a|
+ <%= a.map(&:width).join(', ') -%>,
+% end
+ };
+
+ return t[i];
+}