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annotate src/share/vm/ci/ciMetadata.hpp @ 14518:d8041d695d19

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Merged with jdk9/dev/hotspot changeset 3812c088b945
author twisti
date Tue, 11 Mar 2014 18:45:59 -0700
parents bd7a7ce2e264
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1 /*
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2 * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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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.
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22 *
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23 */
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24
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25 #ifndef SHARE_VM_CI_CIMETADATA_HPP
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26 #define SHARE_VM_CI_CIMETADATA_HPP
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27
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28 #include "ci/ciBaseObject.hpp"
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29 #include "ci/ciClassList.hpp"
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30 #include "memory/allocation.hpp"
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31 #include "runtime/handles.hpp"
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32 #include "runtime/jniHandles.hpp"
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33
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34 // ciMetadata
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35 //
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36 // Compiler interface to metadata object in the VM, not Java object.
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37
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38 class ciMetadata: public ciBaseObject {
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39 CI_PACKAGE_ACCESS
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40 friend class ciEnv;
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41
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42 protected:
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43 Metadata* _metadata;
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44
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45 ciMetadata(): _metadata(NULL) {}
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46 ciMetadata(Metadata* o): _metadata(o) {}
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47
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48 virtual bool is_classless() const { return false; }
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49 public:
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50 bool is_loaded() const { return _metadata != NULL || is_classless(); }
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51
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52 virtual bool is_metadata() const { return true; }
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53
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54 virtual bool is_type() const { return false; }
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55 virtual bool is_cpcache() const { return false; }
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56 virtual bool is_return_address() const { return false; }
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57 virtual bool is_method() const { return false; }
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58 virtual bool is_method_data() const { return false; }
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59 virtual bool is_klass() const { return false; }
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60 virtual bool is_instance_klass() const { return false; }
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61 virtual bool is_array_klass() const { return false; }
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62 virtual bool is_obj_array_klass() const { return false; }
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63 virtual bool is_type_array_klass() const { return false; }
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64 virtual void dump_replay_data(outputStream* st) { /* do nothing */ }
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65
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66 ciMethod* as_method() {
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67 assert(is_method(), "bad cast");
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68 return (ciMethod*)this;
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69 }
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70 ciMethodData* as_method_data() {
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71 assert(is_method_data(), "bad cast");
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72 return (ciMethodData*)this;
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73 }
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74 ciSymbol* as_symbol() {
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75 assert(is_symbol(), "bad cast");
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76 return (ciSymbol*)this;
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77 }
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78 ciType* as_type() {
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79 assert(is_type(), "bad cast");
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80 return (ciType*)this;
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81 }
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82 ciReturnAddress* as_return_address() {
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83 assert(is_return_address(), "bad cast");
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84 return (ciReturnAddress*)this;
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85 }
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86 ciKlass* as_klass() {
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87 assert(is_klass(), "bad cast");
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88 return (ciKlass*)this;
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89 }
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90 ciInstanceKlass* as_instance_klass() {
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91 assert(is_instance_klass(), "bad cast");
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92 return (ciInstanceKlass*)this;
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93 }
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94 ciArrayKlass* as_array_klass() {
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95 assert(is_array_klass(), "bad cast");
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96 return (ciArrayKlass*)this;
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97 }
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98 ciObjArrayKlass* as_obj_array_klass() {
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99 assert(is_obj_array_klass(), "bad cast");
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100 return (ciObjArrayKlass*)this;
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101 }
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102 ciTypeArrayKlass* as_type_array_klass() {
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103 assert(is_type_array_klass(), "bad cast");
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104 return (ciTypeArrayKlass*)this;
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105 }
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106
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107 Metadata* constant_encoding() { return _metadata; }
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108
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109 bool equals(ciMetadata* obj) const { return (this == obj); }
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110
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111 int hash() { return ident() * 31; } // ???
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112
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113 void print(outputStream* st);
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114 virtual void print_impl(outputStream* st) {}
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115 virtual const char* type_string() { return "ciMetadata"; }
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116
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117 void print() { print(tty); }
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118 void print_metadata(outputStream* st = tty);
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119
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120 };
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121 #endif // SHARE_VM_CI_CIMETADATA_HPP