|
1 /* |
|
2 * Copyright 1997-2002 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
|
20 * CA 95054 USA or visit www.sun.com if you need additional information or |
|
21 * have any questions. |
|
22 * |
|
23 */ |
|
24 |
|
25 // Note: FieldType should be based on the SignatureIterator (or vice versa). |
|
26 // In any case, this structure should be re-thought at some point. |
|
27 |
|
28 // A FieldType is used to determine the type of a field from a signature string. |
|
29 |
|
30 class FieldType: public AllStatic { |
|
31 private: |
|
32 static void skip_optional_size(symbolOop signature, int* index); |
|
33 static bool is_valid_array_signature(symbolOop signature); |
|
34 public: |
|
35 |
|
36 // Return basic type |
|
37 static BasicType basic_type(symbolOop signature); |
|
38 |
|
39 // Testing |
|
40 static bool is_array(symbolOop signature) { return signature->utf8_length() > 1 && signature->byte_at(0) == '[' && is_valid_array_signature(signature); } |
|
41 |
|
42 static bool is_obj(symbolOop signature) { |
|
43 int sig_length = signature->utf8_length(); |
|
44 // Must start with 'L' and end with ';' |
|
45 return (sig_length >= 2 && |
|
46 (signature->byte_at(0) == 'L') && |
|
47 (signature->byte_at(sig_length - 1) == ';')); |
|
48 } |
|
49 |
|
50 // Parse field and extract array information. Works for T_ARRAY only. |
|
51 static BasicType get_array_info(symbolOop signature, jint* dimension, symbolOop *object_key, TRAPS); |
|
52 }; |