aoqi@0: /*
aoqi@0:  * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  *
aoqi@0:  */
aoqi@0: 
aoqi@0: #ifndef SHARE_VM_CI_CIMETADATA_HPP
aoqi@0: #define SHARE_VM_CI_CIMETADATA_HPP
aoqi@0: 
aoqi@0: #include "ci/ciBaseObject.hpp"
aoqi@0: #include "ci/ciClassList.hpp"
aoqi@0: #include "memory/allocation.hpp"
aoqi@0: #include "runtime/handles.hpp"
aoqi@0: #include "runtime/jniHandles.hpp"
aoqi@0: 
aoqi@0: // ciMetadata
aoqi@0: //
aoqi@0: // Compiler interface to metadata object in the VM, not Java object.
aoqi@0: 
aoqi@0: class ciMetadata: public ciBaseObject {
aoqi@0:   CI_PACKAGE_ACCESS
aoqi@0:   friend class ciEnv;
aoqi@0: 
aoqi@0:  protected:
aoqi@0:   Metadata* _metadata;
aoqi@0: 
aoqi@0:   ciMetadata(): _metadata(NULL) {}
aoqi@0:   ciMetadata(Metadata* o): _metadata(o) {}
aoqi@0: 
aoqi@0:   virtual bool is_classless() const         { return false; }
aoqi@0:  public:
aoqi@0:   bool is_loaded() const { return _metadata != NULL || is_classless(); }
aoqi@0: 
aoqi@0:   virtual bool is_metadata() const          { return true; }
aoqi@0: 
aoqi@0:   virtual bool is_type() const              { return false; }
aoqi@0:   virtual bool is_cpcache() const           { return false; }
aoqi@0:   virtual bool is_return_address() const    { return false; }
aoqi@0:   virtual bool is_method() const            { return false; }
aoqi@0:   virtual bool is_method_data() const       { return false; }
aoqi@0:   virtual bool is_klass() const             { return false; }
aoqi@0:   virtual bool is_instance_klass() const    { return false; }
aoqi@0:   virtual bool is_array_klass() const       { return false; }
aoqi@0:   virtual bool is_obj_array_klass() const   { return false; }
aoqi@0:   virtual bool is_type_array_klass() const  { return false; }
aoqi@0:   virtual void dump_replay_data(outputStream* st) { /* do nothing */ }
aoqi@0: 
aoqi@0:   ciMethod*                as_method() {
aoqi@0:     assert(is_method(), "bad cast");
aoqi@0:     return (ciMethod*)this;
aoqi@0:   }
aoqi@0:   ciMethodData*            as_method_data() {
aoqi@0:     assert(is_method_data(), "bad cast");
aoqi@0:     return (ciMethodData*)this;
aoqi@0:   }
aoqi@0:   ciSymbol*                as_symbol() {
aoqi@0:     assert(is_symbol(), "bad cast");
aoqi@0:     return (ciSymbol*)this;
aoqi@0:   }
aoqi@0:   ciType*                  as_type() {
aoqi@0:     assert(is_type(), "bad cast");
aoqi@0:     return (ciType*)this;
aoqi@0:   }
aoqi@0:   ciReturnAddress*         as_return_address() {
aoqi@0:     assert(is_return_address(), "bad cast");
aoqi@0:     return (ciReturnAddress*)this;
aoqi@0:   }
aoqi@0:   ciKlass*                 as_klass() {
aoqi@0:     assert(is_klass(), "bad cast");
aoqi@0:     return (ciKlass*)this;
aoqi@0:   }
aoqi@0:   ciInstanceKlass*         as_instance_klass() {
aoqi@0:     assert(is_instance_klass(), "bad cast");
aoqi@0:     return (ciInstanceKlass*)this;
aoqi@0:   }
aoqi@0:   ciArrayKlass*            as_array_klass() {
aoqi@0:     assert(is_array_klass(), "bad cast");
aoqi@0:     return (ciArrayKlass*)this;
aoqi@0:   }
aoqi@0:   ciObjArrayKlass*         as_obj_array_klass() {
aoqi@0:     assert(is_obj_array_klass(), "bad cast");
aoqi@0:     return (ciObjArrayKlass*)this;
aoqi@0:   }
aoqi@0:   ciTypeArrayKlass*        as_type_array_klass() {
aoqi@0:     assert(is_type_array_klass(), "bad cast");
aoqi@0:     return (ciTypeArrayKlass*)this;
aoqi@0:   }
aoqi@0: 
aoqi@0:   Metadata* constant_encoding() { return _metadata; }
aoqi@0: 
aoqi@0:   bool equals(ciMetadata* obj) const { return (this == obj); }
aoqi@0: 
aoqi@0:   int hash() { return ident() * 31; } // ???
aoqi@0: 
aoqi@0:   void print(outputStream* st);
aoqi@0:   virtual void print_impl(outputStream* st) {}
aoqi@0:   virtual const char* type_string() { return "ciMetadata"; }
aoqi@0: 
aoqi@0:   void print()  { print(tty); }
aoqi@0:   void print_metadata(outputStream* st = tty);
aoqi@0: 
aoqi@0: };
aoqi@0: #endif // SHARE_VM_CI_CIMETADATA_HPP