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1   /*
2    * Copyright (c) 2002, 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 class SignatureConverter extends SignatureIterator {
30      private StringBuffer buf;
31      private boolean first = true;
32  
33      public SignatureConverter(Symbol sig, StringBuffer buf) {
34        super(sig);
35        this.buf = buf;
36      }
37  
38      public void doBool  () { appendComma(); buf.append("boolean"); }
39      public void doChar  () { appendComma(); buf.append("char");    }
40      public void doFloat () { appendComma(); buf.append("float");   }
41      public void doDouble() { appendComma(); buf.append("double");  }
42      public void doByte  () { appendComma(); buf.append("byte");    }
43      public void doShort () { appendComma(); buf.append("short");   }
44      public void doInt   () { appendComma(); buf.append("int");     }
45      public void doLong  () { appendComma(); buf.append("long");    }
46      public void doVoid  () {
47         if(isReturnType()) {
48            appendComma(); buf.append("void");
49         } else {
50            throw new RuntimeException("Should not reach here");
51         }
52      }
53  
54      public void doObject(int begin, int end) { doObject(begin, end, true); }
55      public void doArray (int begin, int end) {
56        appendComma();
57        int inner = arrayInnerBegin(begin);
58        switch (_signature.getByteAt(inner)) {
59        case 'B': buf.append("byte"); break;
60        case 'C': buf.append("char"); break;
61        case 'D': buf.append("double"); break;
62        case 'F': buf.append("float"); break;
63        case 'I': buf.append("int"); break;
64        case 'J': buf.append("long"); break;
65        case 'S': buf.append("short"); break;
66        case 'Z': buf.append("boolean"); break;
67        case 'L': doObject(inner + 1, end, false); break;
68        default: break;
69        }
70        for (int i = 0; i < inner - begin + 1; i++) {
71          buf.append("[]");
72        }
73      }
74  
75      public void appendComma() {
76        if (!first) {
77          buf.append(", ");
78        }
79        first = false;
80      }
81  
82      private void doObject(int begin, int end, boolean comma) {
83        if (comma) {
84          appendComma();
85        }
86        appendSubstring(begin, end - 1);
87      }
88  
89      private void appendSubstring(int begin, int end) {
90        for (int i = begin; i < end; i++) {
91          buf.append((char) (_signature.getByteAt(i) & 0xFF));
92        }
93      }
94  
95      private int arrayInnerBegin(int begin) {
96        while (_signature.getByteAt(begin) == '[') {
97          ++begin;
98        }
99        return begin;
100     }
101 }