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Instance Method Summary collapse

Instance Method Details

#write_node_types(list) ⇒ Object 



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# File 'ext/rubinius/code/melbourne/node_types.rb', line 122

def write_node_types(list)
  File.open("node_types.cpp", "wb") do |f|
    f.puts <<EOF
/* This file is generated by node_types.rb. Do not edit. */

#include "namespace.h"
#include "node_types.hpp"

#include <stdio.h>

namespace MELBOURNE {
  static const char node_types[] = {
EOF

    indexes = [0]
    list.each do |type|
      f.puts("    \"#{type}\\0\"")
      indexes.push indexes.last + type.size + 1
    end

    f.puts("  };")
    f.puts

    f.puts("  static const unsigned short node_types_offsets[] = {")

    f.puts indexes.map { |i| "    #{i}" }.join(",\n")

    f.puts <<EOF
  };

  const char *get_node_type_string(enum node_type node) {
    if(node < #{list.size}) {
      return node_types + node_types_offsets[node];
    } else {
#define NODE_STRING_MESSAGE_LEN 20
      static char msg[NODE_STRING_MESSAGE_LEN];
      snprintf(msg, NODE_STRING_MESSAGE_LEN, "unknown node type: %d", node);
      return msg;
    }
  }
};
EOF
  end

  File.open("node_types.hpp", "wb") do |f|
    f.puts <<EOF
#ifndef MEL_NODE_TYPES_HPP
#define MEL_NODE_TYPES_HPP
/* This file is generated by node_types.rb. Do not edit. */

namespace MELBOURNE {
  enum node_type {
EOF

  f.puts list.map { |x| "    NODE_#{x.upcase}" }.join(",\n")

  f.puts <<EOF
  };

  const char *get_node_type_string(enum node_type nt);

};

#endif
EOF
  end
end