1 /* 2 * Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 25 package org.graalvm.compiler.nodes; 26 27 import java.util.List; 28 29 import jdk.internal.vm.compiler.collections.EconomicSet; 30 import org.graalvm.compiler.graph.NodeClass; 31 32 import jdk.vm.ci.meta.Assumptions; 33 import jdk.vm.ci.meta.ResolvedJavaField; 34 import jdk.vm.ci.meta.ResolvedJavaMethod; 35 36 /** 37 * A {@link StructuredGraph} encoded in a compact binary representation as a byte[] array. See 38 * {@link GraphEncoder} for a description of the encoding format. Use {@link GraphDecoder} for 39 * decoding. 40 */ 41 public class EncodedGraph { 42 43 private final byte[] encoding; 44 private final int startOffset; 45 protected final Object[] objects; 46 private final NodeClass<?>[] types; 47 private final Assumptions assumptions; 48 private final List<ResolvedJavaMethod> inlinedMethods; 49 private final boolean trackNodeSourcePosition; 50 private final EconomicSet<ResolvedJavaField> fields; 51 private final boolean hasUnsafeAccess; 52 53 /** 54 * The "table of contents" of the encoded graph, i.e., the mapping from orderId numbers to the 55 * offset in the encoded byte[] array. Used as a cache during decoding. 56 */ 57 protected int[] nodeStartOffsets; 58 59 public EncodedGraph(byte[] encoding, int startOffset, Object[] objects, NodeClass<?>[] types, StructuredGraph sourceGraph) { 60 this(encoding, startOffset, objects, types, sourceGraph.getAssumptions(), sourceGraph.getMethods(), sourceGraph.getFields(), sourceGraph.hasUnsafeAccess(), 61 sourceGraph.trackNodeSourcePosition()); 62 } 63 64 public EncodedGraph(byte[] encoding, int startOffset, Object[] objects, NodeClass<?>[] types, Assumptions assumptions, List<ResolvedJavaMethod> inlinedMethods, 65 EconomicSet<ResolvedJavaField> fields, boolean hasUnsafeAccess, boolean trackNodeSourcePosition) { 66 this.encoding = encoding; 67 this.startOffset = startOffset; 68 this.objects = objects; 69 this.types = types; 70 this.assumptions = assumptions; 71 this.inlinedMethods = inlinedMethods; 72 this.trackNodeSourcePosition = trackNodeSourcePosition; 73 this.fields = fields; 74 this.hasUnsafeAccess = hasUnsafeAccess; 75 } 76 77 public byte[] getEncoding() { 78 return encoding; 79 } 80 81 public int getStartOffset() { 82 return startOffset; 83 } 84 85 protected Object[] getObjects() { 86 return objects; 87 } 88 89 public int getNumObjects() { 90 return objects.length; 91 } 92 93 public Object getObject(int i) { 94 return objects[i]; 95 } 96 97 public NodeClass<?>[] getNodeClasses() { 98 return types; 99 } 100 101 public Assumptions getAssumptions() { 102 return assumptions; 103 } 104 105 public List<ResolvedJavaMethod> getInlinedMethods() { 106 return inlinedMethods; 107 } 108 109 public boolean trackNodeSourcePosition() { 110 return trackNodeSourcePosition; 111 } 112 113 public EconomicSet<ResolvedJavaField> getFields() { 114 return fields; 115 } 116 117 public boolean hasUnsafeAccess() { 118 return hasUnsafeAccess; 119 } 120 121 @SuppressWarnings("unused") 122 public boolean isCallToOriginal(ResolvedJavaMethod callTarget) { 123 return false; 124 } 125 }