hotspot/src/share/vm/ci/ciInstance.hpp
author twisti
Wed, 25 Aug 2010 05:27:54 -0700
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permissions -rw-r--r--
6978355: renaming for 6961697 Summary: This is the renaming part of 6961697 to keep the actual changes small for review. Reviewed-by: kvn, never
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/*
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 * Copyright (c) 1999, 2005, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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// ciInstance
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//
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// This class represents an instanceOop in the HotSpot virtual
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// machine.  This is an oop which corresponds to a non-array
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// instance of java.lang.Object.
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class ciInstance : public ciObject {
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  CI_PACKAGE_ACCESS
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protected:
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  ciInstance(instanceHandle h_i) : ciObject(h_i) {
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    assert(h_i()->is_instance(), "wrong type");
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  }
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  ciInstance(ciKlass* klass) : ciObject(klass) {}
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  instanceOop get_instanceOop() { return (instanceOop)get_oop(); }
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  const char* type_string() { return "ciInstance"; }
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  void print_impl(outputStream* st);
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public:
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  // If this object is a java mirror, return the corresponding type.
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  // Otherwise, return NULL.
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  // (Remember that a java mirror is an instance of java.lang.Class.)
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  ciType* java_mirror_type();
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  // What kind of ciObject is this?
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  bool is_instance()     { return true; }
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  bool is_java_object()  { return true; }
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  // Constant value of a field.
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  ciConstant field_value(ciField* field);
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  // Constant value of a field at the specified offset.
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  ciConstant field_value_by_offset(int field_offset);
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};