Mercurial > hg > truffle

comparison src/share/vm/runtime/fieldType.hpp @ 0:a61af66fc99e jdk7-b24

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Initial load
author duke
date Sat, 01 Dec 2007 00:00:00 +0000
parents
children c18cbe5936b8
comparison
equal deleted inserted replaced
-1:000000000000 0:a61af66fc99e
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 };