1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/vm/ci/ciMetadata.hpp Wed Apr 27 01:25:04 2016 +0800
1.3 @@ -0,0 +1,121 @@
1.4 +/*
1.5 + * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + *
1.26 + */
1.27 +
1.28 +#ifndef SHARE_VM_CI_CIMETADATA_HPP
1.29 +#define SHARE_VM_CI_CIMETADATA_HPP
1.30 +
1.31 +#include "ci/ciBaseObject.hpp"
1.32 +#include "ci/ciClassList.hpp"
1.33 +#include "memory/allocation.hpp"
1.34 +#include "runtime/handles.hpp"
1.35 +#include "runtime/jniHandles.hpp"
1.36 +
1.37 +// ciMetadata
1.38 +//
1.39 +// Compiler interface to metadata object in the VM, not Java object.
1.40 +
1.41 +class ciMetadata: public ciBaseObject {
1.42 + CI_PACKAGE_ACCESS
1.43 + friend class ciEnv;
1.44 +
1.45 + protected:
1.46 + Metadata* _metadata;
1.47 +
1.48 + ciMetadata(): _metadata(NULL) {}
1.49 + ciMetadata(Metadata* o): _metadata(o) {}
1.50 +
1.51 + virtual bool is_classless() const { return false; }
1.52 + public:
1.53 + bool is_loaded() const { return _metadata != NULL || is_classless(); }
1.54 +
1.55 + virtual bool is_metadata() const { return true; }
1.56 +
1.57 + virtual bool is_type() const { return false; }
1.58 + virtual bool is_cpcache() const { return false; }
1.59 + virtual bool is_return_address() const { return false; }
1.60 + virtual bool is_method() const { return false; }
1.61 + virtual bool is_method_data() const { return false; }
1.62 + virtual bool is_klass() const { return false; }
1.63 + virtual bool is_instance_klass() const { return false; }
1.64 + virtual bool is_array_klass() const { return false; }
1.65 + virtual bool is_obj_array_klass() const { return false; }
1.66 + virtual bool is_type_array_klass() const { return false; }
1.67 + virtual void dump_replay_data(outputStream* st) { /* do nothing */ }
1.68 +
1.69 + ciMethod* as_method() {
1.70 + assert(is_method(), "bad cast");
1.71 + return (ciMethod*)this;
1.72 + }
1.73 + ciMethodData* as_method_data() {
1.74 + assert(is_method_data(), "bad cast");
1.75 + return (ciMethodData*)this;
1.76 + }
1.77 + ciSymbol* as_symbol() {
1.78 + assert(is_symbol(), "bad cast");
1.79 + return (ciSymbol*)this;
1.80 + }
1.81 + ciType* as_type() {
1.82 + assert(is_type(), "bad cast");
1.83 + return (ciType*)this;
1.84 + }
1.85 + ciReturnAddress* as_return_address() {
1.86 + assert(is_return_address(), "bad cast");
1.87 + return (ciReturnAddress*)this;
1.88 + }
1.89 + ciKlass* as_klass() {
1.90 + assert(is_klass(), "bad cast");
1.91 + return (ciKlass*)this;
1.92 + }
1.93 + ciInstanceKlass* as_instance_klass() {
1.94 + assert(is_instance_klass(), "bad cast");
1.95 + return (ciInstanceKlass*)this;
1.96 + }
1.97 + ciArrayKlass* as_array_klass() {
1.98 + assert(is_array_klass(), "bad cast");
1.99 + return (ciArrayKlass*)this;
1.100 + }
1.101 + ciObjArrayKlass* as_obj_array_klass() {
1.102 + assert(is_obj_array_klass(), "bad cast");
1.103 + return (ciObjArrayKlass*)this;
1.104 + }
1.105 + ciTypeArrayKlass* as_type_array_klass() {
1.106 + assert(is_type_array_klass(), "bad cast");
1.107 + return (ciTypeArrayKlass*)this;
1.108 + }
1.109 +
1.110 + Metadata* constant_encoding() { return _metadata; }
1.111 +
1.112 + bool equals(ciMetadata* obj) const { return (this == obj); }
1.113 +
1.114 + int hash() { return ident() * 31; } // ???
1.115 +
1.116 + void print(outputStream* st);
1.117 + virtual void print_impl(outputStream* st) {}
1.118 + virtual const char* type_string() { return "ciMetadata"; }
1.119 +
1.120 + void print() { print(tty); }
1.121 + void print_metadata(outputStream* st = tty);
1.122 +
1.123 +};
1.124 +#endif // SHARE_VM_CI_CIMETADATA_HPP
