1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
|
/*
* Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*
*/
#ifndef SHARE_VM_RUNTIME_FIELDTYPE_HPP
#define SHARE_VM_RUNTIME_FIELDTYPE_HPP
#include "memory/allocation.hpp"
#include "oops/symbolOop.hpp"
// Note: FieldType should be based on the SignatureIterator (or vice versa).
// In any case, this structure should be re-thought at some point.
// A FieldType is used to determine the type of a field from a signature string.
class FieldType: public AllStatic {
private:
static void skip_optional_size(symbolOop signature, int* index);
static bool is_valid_array_signature(symbolOop signature);
public:
// Return basic type
static BasicType basic_type(symbolOop signature);
// Testing
static bool is_array(symbolOop signature) { return signature->utf8_length() > 1 && signature->byte_at(0) == '[' && is_valid_array_signature(signature); }
static bool is_obj(symbolOop signature) {
int sig_length = signature->utf8_length();
// Must start with 'L' and end with ';'
return (sig_length >= 2 &&
(signature->byte_at(0) == 'L') &&
(signature->byte_at(sig_length - 1) == ';'));
}
// Parse field and extract array information. Works for T_ARRAY only.
static BasicType get_array_info(symbolOop signature, jint* dimension, symbolOop *object_key, TRAPS);
};
#endif // SHARE_VM_RUNTIME_FIELDTYPE_HPP
|
