Package org.antlr.v4.codegen.model

Source Code of org.antlr.v4.codegen.model.SerializedATN

/*
* [The "BSD license"]
*  Copyright (c) 2012 Terence Parr
*  Copyright (c) 2012 Sam Harwell
*  All rights reserved.
*
*  Redistribution and use in source and binary forms, with or without
*  modification, are permitted provided that the following conditions
*  are met:
*
*  1. Redistributions of source code must retain the above copyright
*     notice, this list of conditions and the following disclaimer.
*  2. Redistributions in binary form must reproduce the above copyright
*     notice, this list of conditions and the following disclaimer in the
*     documentation and/or other materials provided with the distribution.
*  3. The name of the author may not be used to endorse or promote products
*     derived from this software without specific prior written permission.
*
*  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
*  IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
*  OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
*  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
*  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
*  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
*  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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package org.antlr.v4.codegen.model;

import org.antlr.v4.codegen.OutputModelFactory;
import org.antlr.v4.runtime.atn.ATN;
import org.antlr.v4.runtime.atn.ATNSerializer;
import org.antlr.v4.runtime.misc.IntegerList;

import java.util.ArrayList;
import java.util.List;

public class SerializedATN extends OutputModelObject {
  // TODO: make this into a kind of decl or multiple?
  public List<String> serialized;
  public SerializedATN(OutputModelFactory factory, ATN atn) {
    super(factory);
    IntegerList data = ATNSerializer.getSerialized(atn);
    serialized = new ArrayList<String>(data.size());
    for (int c : data.toArray()) {
      String encoded = factory.getGenerator().getTarget().encodeIntAsCharEscape(c == -1 ? Character.MAX_VALUE : c);
      serialized.add(encoded);
    }
//    System.out.println(ATNSerializer.getDecoded(factory.getGrammar(), atn));
  }

  public String[][] getSegments() {
    List<String[]> segments = new ArrayList<String[]>();
    int segmentLimit = factory.getGenerator().getTarget().getSerializedATNSegmentLimit();
    for (int i = 0; i < serialized.size(); i += segmentLimit) {
      List<String> currentSegment = serialized.subList(i, Math.min(i + segmentLimit, serialized.size()));
      segments.add(currentSegment.toArray(new String[currentSegment.size()]));
    }

    return segments.toArray(new String[segments.size()][]);
  }
}
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