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1   /*
2    * Copyright (c) 2001, Oracle and/or its affiliates. All rights reserved.
3    * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4    *
5    * This code is free software; you can redistribute it and/or modify it
6    * under the terms of the GNU General Public License version 2 only, as
7    * published by the Free Software Foundation.
8    *
9    * This code is distributed in the hope that it will be useful, but WITHOUT
10   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11   * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12   * version 2 for more details (a copy is included in the LICENSE file that
13   * accompanied this code).
14   *
15   * You should have received a copy of the GNU General Public License version
16   * 2 along with this work; if not, write to the Free Software Foundation,
17   * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18   *
19   * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20   * or visit www.oracle.com if you need additional information or have any
21   * questions.
22   *
23   */
24  
25  package sun.jvm.hotspot.runtime;
26  
27  import sun.jvm.hotspot.oops.*;
28  
29  public abstract class SignatureInfo extends SignatureIterator {
30    protected boolean hasIterated; // need this because iterate cannot be called in constructor (set is virtual!)
31    protected int     size;
32    protected int     type;        // BasicType
33  
34    protected void lazyIterate() {
35      if (!hasIterated) {
36        iterate();
37        hasIterated = true;
38      }
39    }
40  
41    protected abstract void set(int size, int /*BasicType*/ type);
42  
43    public void doBool()                     { set(BasicTypeSize.getTBooleanSize(), BasicType.getTBoolean()); }
44    public void doChar()                     { set(BasicTypeSize.getTCharSize(),    BasicType.getTChar());    }
45    public void doFloat()                    { set(BasicTypeSize.getTFloatSize(),   BasicType.getTFloat());   }
46    public void doDouble()                   { set(BasicTypeSize.getTDoubleSize(),  BasicType.getTDouble());  }
47    public void doByte()                     { set(BasicTypeSize.getTByteSize(),    BasicType.getTByte());    }
48    public void doShort()                    { set(BasicTypeSize.getTShortSize(),   BasicType.getTShort());   }
49    public void doInt()                      { set(BasicTypeSize.getTIntSize(),     BasicType.getTInt());     }
50    public void doLong()                     { set(BasicTypeSize.getTLongSize(),    BasicType.getTLong());    }
51    public void doVoid()                     { set(BasicTypeSize.getTVoidSize(),    BasicType.getTVoid());    }
52    public void doObject(int begin, int end) { set(BasicTypeSize.getTObjectSize(),  BasicType.getTObject());  }
53    public void doArray(int begin, int end)  { set(BasicTypeSize.getTArraySize(),   BasicType.getTArray());   }
54  
55    public SignatureInfo(Symbol signature) {
56      super(signature);
57  
58      type = BasicType.getTIllegal();
59    }
60  
61    public int size() { lazyIterate(); return size; }
62    public int type() { lazyIterate(); return type; }
63  }