coleenp@4037: /*
coleenp@4037:  * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved.
coleenp@4037:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
coleenp@4037:  *
coleenp@4037:  * This code is free software; you can redistribute it and/or modify it
coleenp@4037:  * under the terms of the GNU General Public License version 2 only, as
coleenp@4037:  * published by the Free Software Foundation.
coleenp@4037:  *
coleenp@4037:  * This code is distributed in the hope that it will be useful, but WITHOUT
coleenp@4037:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
coleenp@4037:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
coleenp@4037:  * version 2 for more details (a copy is included in the LICENSE file that
coleenp@4037:  * accompanied this code).
coleenp@4037:  *
coleenp@4037:  * You should have received a copy of the GNU General Public License version
coleenp@4037:  * 2 along with this work; if not, write to the Free Software Foundation,
coleenp@4037:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
coleenp@4037:  *
coleenp@4037:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
coleenp@4037:  * or visit www.oracle.com if you need additional information or have any
coleenp@4037:  * questions.
coleenp@4037:  *
coleenp@4037:  */
coleenp@4037: 
coleenp@4037: #ifndef SHARE_VM_CI_CIMETADATA_HPP
coleenp@4037: #define SHARE_VM_CI_CIMETADATA_HPP
coleenp@4037: 
coleenp@4037: #include "ci/ciBaseObject.hpp"
coleenp@4037: #include "ci/ciClassList.hpp"
coleenp@4037: #include "memory/allocation.hpp"
coleenp@4037: #include "runtime/handles.hpp"
coleenp@4037: #include "runtime/jniHandles.hpp"
coleenp@4037: 
coleenp@4037: // ciMetadata
coleenp@4037: //
coleenp@4037: // Compiler interface to metadata object in the VM, not Java object.
coleenp@4037: 
coleenp@4037: class ciMetadata: public ciBaseObject {
coleenp@4037:   CI_PACKAGE_ACCESS
coleenp@4037:   friend class ciEnv;
coleenp@4037: 
coleenp@4037:  protected:
coleenp@4037:   Metadata* _metadata;
coleenp@4037: 
coleenp@4037:   ciMetadata(): _metadata(NULL) {}
coleenp@4037:   ciMetadata(Metadata* o): _metadata(o) {}
coleenp@4037: 
coleenp@4037:   virtual bool is_classless() const         { return false; }
coleenp@4037:  public:
coleenp@4037:   bool is_loaded() const { return _metadata != NULL || is_classless(); }
coleenp@4037: 
coleenp@4037:   virtual bool is_metadata() const          { return true; }
coleenp@4037: 
coleenp@4037:   virtual bool is_type() const              { return false; }
coleenp@4037:   virtual bool is_cpcache() const           { return false; }
coleenp@4037:   virtual bool is_return_address() const    { return false; }
coleenp@4037:   virtual bool is_method() const            { return false; }
coleenp@4037:   virtual bool is_method_data() const       { return false; }
coleenp@4037:   virtual bool is_klass() const             { return false; }
coleenp@4037:   virtual bool is_instance_klass() const    { return false; }
coleenp@4037:   virtual bool is_array_klass() const       { return false; }
coleenp@4037:   virtual bool is_obj_array_klass() const   { return false; }
coleenp@4037:   virtual bool is_type_array_klass() const  { return false; }
minqi@4267:   virtual void dump_replay_data(outputStream* st) { /* do nothing */ }
coleenp@4037: 
coleenp@4037:   ciMethod*                as_method() {
coleenp@4037:     assert(is_method(), "bad cast");
coleenp@4037:     return (ciMethod*)this;
coleenp@4037:   }
coleenp@4037:   ciMethodData*            as_method_data() {
coleenp@4037:     assert(is_method_data(), "bad cast");
coleenp@4037:     return (ciMethodData*)this;
coleenp@4037:   }
coleenp@4037:   ciSymbol*                as_symbol() {
coleenp@4037:     assert(is_symbol(), "bad cast");
coleenp@4037:     return (ciSymbol*)this;
coleenp@4037:   }
coleenp@4037:   ciType*                  as_type() {
coleenp@4037:     assert(is_type(), "bad cast");
coleenp@4037:     return (ciType*)this;
coleenp@4037:   }
coleenp@4037:   ciReturnAddress*         as_return_address() {
coleenp@4037:     assert(is_return_address(), "bad cast");
coleenp@4037:     return (ciReturnAddress*)this;
coleenp@4037:   }
coleenp@4037:   ciKlass*                 as_klass() {
coleenp@4037:     assert(is_klass(), "bad cast");
coleenp@4037:     return (ciKlass*)this;
coleenp@4037:   }
coleenp@4037:   ciInstanceKlass*         as_instance_klass() {
coleenp@4037:     assert(is_instance_klass(), "bad cast");
coleenp@4037:     return (ciInstanceKlass*)this;
coleenp@4037:   }
coleenp@4037:   ciArrayKlass*            as_array_klass() {
coleenp@4037:     assert(is_array_klass(), "bad cast");
coleenp@4037:     return (ciArrayKlass*)this;
coleenp@4037:   }
coleenp@4037:   ciObjArrayKlass*         as_obj_array_klass() {
coleenp@4037:     assert(is_obj_array_klass(), "bad cast");
coleenp@4037:     return (ciObjArrayKlass*)this;
coleenp@4037:   }
coleenp@4037:   ciTypeArrayKlass*        as_type_array_klass() {
coleenp@4037:     assert(is_type_array_klass(), "bad cast");
coleenp@4037:     return (ciTypeArrayKlass*)this;
coleenp@4037:   }
coleenp@4037: 
coleenp@4037:   Metadata* constant_encoding() { return _metadata; }
coleenp@4037: 
coleenp@4037:   bool equals(ciMetadata* obj) const { return (this == obj); }
coleenp@4037: 
coleenp@4037:   int hash() { return ident() * 31; } // ???
coleenp@4037: 
coleenp@4037:   void print(outputStream* st);
coleenp@4037:   virtual void print_impl(outputStream* st) {}
coleenp@4037:   virtual const char* type_string() { return "ciMetadata"; }
coleenp@4037: 
coleenp@4037:   void print()  { print(tty); }
coleenp@4037:   void print_metadata(outputStream* st = tty);
coleenp@4037: 
coleenp@4037: };
coleenp@4037: #endif // SHARE_VM_CI_CIMETADATA_HPP