1/*
2 * Copyright (c) 1999, 2019, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25#include "precompiled.hpp"
26#include "ci/ciSymbol.hpp"
27#include "ci/ciUtilities.inline.hpp"
28#include "classfile/symbolTable.hpp"
29#include "memory/oopFactory.hpp"
30
31// ------------------------------------------------------------------
32// ciSymbol::ciSymbol
33//
34// Preallocated symbol variant. Used with symbols from vmSymbols.
35ciSymbol::ciSymbol(Symbol* s, vmSymbols::SID sid)
36 : _symbol(s), _sid(sid)
37{
38 assert(_symbol != NULL, "adding null symbol");
39 _symbol->increment_refcount(); // increment ref count
40 assert(sid_ok(), "must be in vmSymbols");
41}
42
43// Normal case for non-famous symbols.
44ciSymbol::ciSymbol(Symbol* s)
45 : _symbol(s), _sid(vmSymbols::NO_SID)
46{
47 assert(_symbol != NULL, "adding null symbol");
48 _symbol->increment_refcount(); // increment ref count
49 assert(sid_ok(), "must not be in vmSymbols");
50}
51
52// ciSymbol
53//
54// This class represents a Symbol* in the HotSpot virtual
55// machine.
56
57// ------------------------------------------------------------------
58// ciSymbol::as_utf8
59//
60// The text of the symbol as a null-terminated C string.
61const char* ciSymbol::as_utf8() {
62 GUARDED_VM_QUICK_ENTRY(return get_symbol()->as_utf8();)
63}
64
65// The text of the symbol as a null-terminated C string.
66const char* ciSymbol::as_quoted_ascii() {
67 GUARDED_VM_QUICK_ENTRY(return get_symbol()->as_quoted_ascii();)
68}
69
70// ------------------------------------------------------------------
71// ciSymbol::base
72const u1* ciSymbol::base() {
73 GUARDED_VM_ENTRY(return get_symbol()->base();)
74}
75
76// ------------------------------------------------------------------
77// ciSymbol::char_at
78char ciSymbol::char_at(int i) {
79 GUARDED_VM_ENTRY(return get_symbol()->char_at(i);)
80}
81
82// ------------------------------------------------------------------
83// ciSymbol::starts_with
84//
85// Tests if the symbol starts with the given prefix.
86bool ciSymbol::starts_with(const char* prefix, int len) const {
87 GUARDED_VM_ENTRY(return get_symbol()->starts_with(prefix, len);)
88}
89
90bool ciSymbol::is_signature_polymorphic_name() const {
91 GUARDED_VM_ENTRY(return MethodHandles::is_signature_polymorphic_name(get_symbol());)
92}
93
94// ------------------------------------------------------------------
95// ciSymbol::index_of
96//
97// Determines where the symbol contains the given substring.
98int ciSymbol::index_of_at(int i, const char* str, int len) const {
99 GUARDED_VM_ENTRY(return get_symbol()->index_of_at(i, str, len);)
100}
101
102// ------------------------------------------------------------------
103// ciSymbol::utf8_length
104int ciSymbol::utf8_length() {
105 GUARDED_VM_ENTRY(return get_symbol()->utf8_length();)
106}
107
108// ------------------------------------------------------------------
109// ciSymbol::print_impl
110//
111// Implementation of the print method
112void ciSymbol::print_impl(outputStream* st) {
113 st->print(" value=");
114 print_symbol_on(st);
115}
116
117// ------------------------------------------------------------------
118// ciSymbol::print_symbol_on
119//
120// Print the value of this symbol on an outputStream
121void ciSymbol::print_symbol_on(outputStream *st) {
122 GUARDED_VM_ENTRY(get_symbol()->print_symbol_on(st);)
123}
124
125const char* ciSymbol::as_klass_external_name() const {
126 GUARDED_VM_ENTRY(return get_symbol()->as_klass_external_name(););
127}
128
129// ------------------------------------------------------------------
130// ciSymbol::make_impl
131//
132// Make a ciSymbol from a C string (implementation).
133ciSymbol* ciSymbol::make_impl(const char* s) {
134 EXCEPTION_CONTEXT;
135 TempNewSymbol sym = SymbolTable::new_symbol(s);
136 return CURRENT_THREAD_ENV->get_symbol(sym);
137}
138
139// ------------------------------------------------------------------
140// ciSymbol::make
141//
142// Make a ciSymbol from a C string.
143ciSymbol* ciSymbol::make(const char* s) {
144 GUARDED_VM_ENTRY(return make_impl(s);)
145}
146