ruby--ruby/tool/ruby_vm/views/_insn_len_info.erb

%# -*- C -*-
%# 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 23 do |a|
        <%= a.map(&:width).join(', ') -%>,
% end
    };

    ASSERT_VM_INSTRUCTION_SIZE(t);
    return t[i];
}