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comparison src/share/vm/ci/ciSymbol.cpp @ 0:a61af66fc99e jdk7-b24

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author duke
date Sat, 01 Dec 2007 00:00:00 +0000
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children dd57230ba8fe
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-1:000000000000 0:a61af66fc99e
1 /*
2 * Copyright 1999-2007 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 #include "incls/_precompiled.incl"
26 #include "incls/_ciSymbol.cpp.incl"
27
28 // ------------------------------------------------------------------
29 // ciSymbol::ciSymbol
30 //
31 // Preallocated handle variant. Used with handles from vmSymboHandles.
32 ciSymbol::ciSymbol(symbolHandle h_s) : ciObject(h_s) {
33 }
34
35 // ciSymbol
36 //
37 // This class represents a symbolOop in the HotSpot virtual
38 // machine.
39
40 // ------------------------------------------------------------------
41 // ciSymbol::as_utf8
42 //
43 // The text of the symbol as a null-terminated C string.
44 const char* ciSymbol::as_utf8() {
45 VM_QUICK_ENTRY_MARK;
46 symbolOop s = get_symbolOop();
47 return s->as_utf8();
48 }
49
50 // ------------------------------------------------------------------
51 // ciSymbol::base
52 jbyte* ciSymbol::base() {
53 GUARDED_VM_ENTRY(return get_symbolOop()->base();)
54 }
55
56 // ------------------------------------------------------------------
57 // ciSymbol::byte_at
58 int ciSymbol::byte_at(int i) {
59 GUARDED_VM_ENTRY(return get_symbolOop()->byte_at(i);)
60 }
61
62 // ------------------------------------------------------------------
63 // ciSymbol::utf8_length
64 int ciSymbol::utf8_length() {
65 GUARDED_VM_ENTRY(return get_symbolOop()->utf8_length();)
66 }
67
68 // ------------------------------------------------------------------
69 // ciSymbol::print_impl
70 //
71 // Implementation of the print method
72 void ciSymbol::print_impl(outputStream* st) {
73 st->print(" value=");
74 print_symbol_on(st);
75 }
76
77 // ------------------------------------------------------------------
78 // ciSymbol::print_symbol_on
79 //
80 // Print the value of this symbol on an outputStream
81 void ciSymbol::print_symbol_on(outputStream *st) {
82 GUARDED_VM_ENTRY(get_symbolOop()->print_symbol_on(st);)
83 }
84
85 // ------------------------------------------------------------------
86 // ciSymbol::make_impl
87 //
88 // Make a ciSymbol from a C string (implementation).
89 ciSymbol* ciSymbol::make_impl(const char* s) {
90 EXCEPTION_CONTEXT;
91 // For some reason, oopFactory::new_symbol doesn't declare its
92 // char* argument as const.
93 symbolOop sym = oopFactory::new_symbol((char*)s, (int)strlen(s), THREAD);
94 if (HAS_PENDING_EXCEPTION) {
95 CLEAR_PENDING_EXCEPTION;
96 CURRENT_THREAD_ENV->record_out_of_memory_failure();
97 return ciEnv::_unloaded_cisymbol;
98 }
99 return CURRENT_THREAD_ENV->get_object(sym)->as_symbol();
100 }
101
102 // ------------------------------------------------------------------
103 // ciSymbol::make
104 //
105 // Make a ciSymbol from a C string.
106 ciSymbol* ciSymbol::make(const char* s) {
107 GUARDED_VM_ENTRY(return make_impl(s);)
108 }