Mercurial > hg > graal-compiler
annotate src/share/vm/runtime/fieldType.cpp @ 2162:ccfcb502af3f
6566340: Restore use of stillborn flag to signify a thread that was stopped before it started
Summary: Restore use of stillborn flag
Reviewed-by: acorn, alanb
author | dholmes |
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date | Tue, 25 Jan 2011 00:14:21 -0500 |
parents | f95d63e2154a |
children | 3582bf76420e |
rev | line source |
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0 | 1 /* |
1972 | 2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
1552
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "classfile/systemDictionary.hpp" | |
27 #include "memory/oopFactory.hpp" | |
28 #include "oops/oop.inline.hpp" | |
29 #include "oops/typeArrayKlass.hpp" | |
30 #include "runtime/fieldType.hpp" | |
31 #include "runtime/signature.hpp" | |
0 | 32 |
33 void FieldType::skip_optional_size(symbolOop signature, int* index) { | |
34 jchar c = signature->byte_at(*index); | |
35 while (c >= '0' && c <= '9') { | |
36 *index = *index + 1; | |
37 c = signature->byte_at(*index); | |
38 } | |
39 } | |
40 | |
41 BasicType FieldType::basic_type(symbolOop signature) { | |
42 return char2type(signature->byte_at(0)); | |
43 } | |
44 | |
45 // Check if it is a valid array signature | |
46 bool FieldType::is_valid_array_signature(symbolOop sig) { | |
47 assert(sig->utf8_length() > 1, "this should already have been checked"); | |
48 assert(sig->byte_at(0) == '[', "this should already have been checked"); | |
49 // The first character is already checked | |
50 int i = 1; | |
51 int len = sig->utf8_length(); | |
52 // First skip all '['s | |
53 while(i < len - 1 && sig->byte_at(i) == '[') i++; | |
54 | |
55 // Check type | |
56 switch(sig->byte_at(i)) { | |
57 case 'B': // T_BYTE | |
58 case 'C': // T_CHAR | |
59 case 'D': // T_DOUBLE | |
60 case 'F': // T_FLOAT | |
61 case 'I': // T_INT | |
62 case 'J': // T_LONG | |
63 case 'S': // T_SHORT | |
64 case 'Z': // T_BOOLEAN | |
65 // If it is an array, the type is the last character | |
66 return (i + 1 == len); | |
67 case 'L': | |
68 // If it is an object, the last character must be a ';' | |
69 return sig->byte_at(len - 1) == ';'; | |
70 } | |
71 | |
72 return false; | |
73 } | |
74 | |
75 | |
76 BasicType FieldType::get_array_info(symbolOop signature, jint* dimension, symbolOop* object_key, TRAPS) { | |
77 assert(basic_type(signature) == T_ARRAY, "must be array"); | |
78 int index = 1; | |
79 int dim = 1; | |
80 skip_optional_size(signature, &index); | |
81 while (signature->byte_at(index) == '[') { | |
82 index++; | |
83 dim++; | |
84 skip_optional_size(signature, &index); | |
85 } | |
86 ResourceMark rm; | |
87 symbolOop element = oopFactory::new_symbol(signature->as_C_string() + index, CHECK_(T_BYTE)); | |
88 BasicType element_type = FieldType::basic_type(element); | |
89 if (element_type == T_OBJECT) { | |
90 char* object_type = element->as_C_string(); | |
91 object_type[element->utf8_length() - 1] = '\0'; | |
92 *object_key = oopFactory::new_symbol(object_type + 1, CHECK_(T_BYTE)); | |
93 } | |
94 // Pass dimension back to caller | |
95 *dimension = dim; | |
96 return element_type; | |
97 } |