| /* |
| * Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| |
| package org.graalvm.compiler.nodes.memory; |
| |
| /** |
| * Encapsulates properties of a node describing how it accesses the heap. |
| */ |
| public interface HeapAccess { |
| |
| /** |
| * The types of (write/read) barriers attached to stores. |
| */ |
| enum BarrierType { |
| /** |
| * Primitive stores which do not necessitate barriers. |
| */ |
| NONE, |
| /** |
| * Array object stores which necessitate precise barriers. |
| */ |
| PRECISE, |
| /** |
| * Field object stores which necessitate imprecise barriers. |
| */ |
| IMPRECISE |
| } |
| |
| /** |
| * Gets the write barrier type for that particular access. |
| */ |
| BarrierType getBarrierType(); |
| } |