src/share/vm/ci/ciInstance.hpp

Tue, 08 Aug 2017 15:57:29 +0800

author
aoqi
date
Tue, 08 Aug 2017 15:57:29 +0800
changeset 6876
710a3c8b516e
parent 2658
c7f3d0b4570f
parent 0
f90c822e73f8
permissions
-rw-r--r--

merge

aoqi@0 1 /*
aoqi@0 2 * Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved.
aoqi@0 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0 4 *
aoqi@0 5 * This code is free software; you can redistribute it and/or modify it
aoqi@0 6 * under the terms of the GNU General Public License version 2 only, as
aoqi@0 7 * published by the Free Software Foundation.
aoqi@0 8 *
aoqi@0 9 * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0 12 * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0 13 * accompanied this code).
aoqi@0 14 *
aoqi@0 15 * You should have received a copy of the GNU General Public License version
aoqi@0 16 * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0 18 *
aoqi@0 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0 20 * or visit www.oracle.com if you need additional information or have any
aoqi@0 21 * questions.
aoqi@0 22 *
aoqi@0 23 */
aoqi@0 24
aoqi@0 25 #ifndef SHARE_VM_CI_CIINSTANCE_HPP
aoqi@0 26 #define SHARE_VM_CI_CIINSTANCE_HPP
aoqi@0 27
aoqi@0 28 #include "ci/ciObject.hpp"
aoqi@0 29 #include "oops/instanceOop.hpp"
aoqi@0 30
aoqi@0 31 // ciInstance
aoqi@0 32 //
aoqi@0 33 // This class represents an instanceOop in the HotSpot virtual
aoqi@0 34 // machine. This is an oop which corresponds to a non-array
aoqi@0 35 // instance of java.lang.Object.
aoqi@0 36 class ciInstance : public ciObject {
aoqi@0 37 CI_PACKAGE_ACCESS
aoqi@0 38
aoqi@0 39 protected:
aoqi@0 40 ciInstance(instanceHandle h_i) : ciObject(h_i) {
aoqi@0 41 assert(h_i()->is_instance(), "wrong type");
aoqi@0 42 }
aoqi@0 43
aoqi@0 44 ciInstance(ciKlass* klass) : ciObject(klass) {}
aoqi@0 45
aoqi@0 46 instanceOop get_instanceOop() { return (instanceOop)get_oop(); }
aoqi@0 47
aoqi@0 48 const char* type_string() { return "ciInstance"; }
aoqi@0 49
aoqi@0 50 void print_impl(outputStream* st);
aoqi@0 51
aoqi@0 52 public:
aoqi@0 53 // If this object is a java mirror, return the corresponding type.
aoqi@0 54 // Otherwise, return NULL.
aoqi@0 55 // (Remember that a java mirror is an instance of java.lang.Class.)
aoqi@0 56 ciType* java_mirror_type();
aoqi@0 57
aoqi@0 58 // What kind of ciObject is this?
aoqi@0 59 bool is_instance() { return true; }
aoqi@0 60 bool is_java_object() { return true; }
aoqi@0 61
aoqi@0 62 // Constant value of a field.
aoqi@0 63 ciConstant field_value(ciField* field);
aoqi@0 64
aoqi@0 65 // Constant value of a field at the specified offset.
aoqi@0 66 ciConstant field_value_by_offset(int field_offset);
aoqi@0 67
aoqi@0 68 ciKlass* java_lang_Class_klass();
aoqi@0 69 };
aoqi@0 70
aoqi@0 71 #endif // SHARE_VM_CI_CIINSTANCE_HPP

mercurial