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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.interpreter;
26  
27  import sun.jvm.hotspot.oops.*;
28  import sun.jvm.hotspot.runtime.*;
29  import sun.jvm.hotspot.utilities.*;
30  
31  /** Helper class for computing oop maps for native methods */
32  
33  class MaskFillerForNative extends NativeSignatureIterator {
34    MaskFillerForNative(Method method, BitMap mask, int maskSize) {
35      super(method);
36      this.mask = mask;
37      this.size = maskSize;
38    }
39  
40    public void passInt()    { /* ignore */ }
41    public void passLong()   { /* ignore */ }
42    public void passFloat()  { /* ignore */ }
43    public void passDouble() { /* ignore */ }
44    public void passObject() { mask.atPut(offset(), true); }
45  
46    public void generate() {
47      super.iterate();
48    }
49  
50    //----------------------------------------------------------------------
51    // Internals only below this point
52    //
53    private BitMap mask;
54    private int    size;
55  }