/*

 * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 *

 */

package sun.jvm.hotspot.runtime;

import sun.jvm.hotspot.oops.*;

public class SignatureConverter extends SignatureIterator {

    private StringBuffer buf;

    private boolean first = true;

    public SignatureConverter(Symbol sig, StringBuffer buf) {

      super(sig);

      this.buf = buf;

    }

    public void doBool  () { appendComma(); buf.append("boolean"); }

    public void doChar  () { appendComma(); buf.append("char");    }

    public void doFloat () { appendComma(); buf.append("float");   }

    public void doDouble() { appendComma(); buf.append("double");  }

    public void doByte  () { appendComma(); buf.append("byte");    }

    public void doShort () { appendComma(); buf.append("short");   }

    public void doInt   () { appendComma(); buf.append("int");     }

    public void doLong  () { appendComma(); buf.append("long");    }

    public void doVoid  () {

       if(isReturnType()) {

          appendComma(); buf.append("void");

       } else {

          throw new RuntimeException("Should not reach here");

       }

    }

    public void doObject(int begin, int end) { doObject(begin, end, true); }

    public void doArray (int begin, int end) {

      appendComma();

      int inner = arrayInnerBegin(begin);

      switch (_signature.getByteAt(inner)) {

      case 'B': buf.append("byte"); break;

      case 'C': buf.append("char"); break;

      case 'D': buf.append("double"); break;

      case 'F': buf.append("float"); break;

      case 'I': buf.append("int"); break;

      case 'J': buf.append("long"); break;

      case 'S': buf.append("short"); break;

      case 'Z': buf.append("boolean"); break;

      case 'L': doObject(inner + 1, end, false); break;

      default: break;

      }

      for (int i = 0; i < inner - begin + 1; i++) {

        buf.append("[]");

      }

    }

    public void appendComma() {

      if (!first) {

        buf.append(", ");

      }

      first = false;

    }

    private void doObject(int begin, int end, boolean comma) {

      if (comma) {

        appendComma();

      }

      appendSubstring(begin, end - 1);

    }

    private void appendSubstring(int begin, int end) {

      for (int i = begin; i < end; i++) {

        buf.append((char) (_signature.getByteAt(i) & 0xFF));

      }

    }

    private int arrayInnerBegin(int begin) {

      while (_signature.getByteAt(begin) == '[') {

        ++begin;

      }

      return begin;

    }

}