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annotate graal/com.oracle.truffle.interop/src/com/oracle/truffle/interop/node/ObjectAccessNode.java @ 21329:6a32034ace1b

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LinearScan: make opIdToIndex private.
author Josef Eisl <josef.eisl@jku.at>
date Tue, 12 May 2015 13:08:43 +0200
parents 556b6a4b36b2
children b1530a6cce8c
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21013
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1 /*
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2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation. Oracle designates this
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8 * particular file as subject to the "Classpath" exception as provided
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9 * by Oracle in the LICENSE file that accompanied this code.
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10 *
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11 * This code is distributed in the hope that it will be useful, but WITHOUT
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 * version 2 for more details (a copy is included in the LICENSE file that
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15 * accompanied this code).
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16 *
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17 * You should have received a copy of the GNU General Public License version
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18 * 2 along with this work; if not, write to the Free Software Foundation,
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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20 *
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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22 * or visit www.oracle.com if you need additional information or have any
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23 * questions.
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24 */
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25 package com.oracle.truffle.interop.node;
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26
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27 import com.oracle.truffle.api.*;
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28 import com.oracle.truffle.api.frame.*;
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29 import com.oracle.truffle.api.interop.*;
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30 import com.oracle.truffle.api.interop.InteropPredicate;
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31 import com.oracle.truffle.api.interop.messages.*;
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32 import com.oracle.truffle.api.nodes.*;
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33 import com.oracle.truffle.interop.*;
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34
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35 abstract class ObjectAccessNode extends Node {
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36
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37 public abstract Object executeWith(VirtualFrame frame, TruffleObject receiver, Object[] arguments);
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38
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39 }
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40
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41 class UnresolvedObjectAccessNode extends ObjectAccessNode {
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42
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43 private static final int CACHE_SIZE = 8;
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44 private int cacheLength = 1;
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45
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46 @Override
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47 public Object executeWith(VirtualFrame frame, TruffleObject receiver, Object[] arguments) {
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48 CompilerDirectives.transferToInterpreterAndInvalidate();
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49 ForeignObjectAccessHeadNode nthParent = (ForeignObjectAccessHeadNode) NodeUtil.getNthParent(this, cacheLength);
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50 ObjectAccessNode first = nthParent.getFirst();
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51 if (cacheLength < CACHE_SIZE) {
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52 cacheLength++;
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53 CachedObjectAccessNode createCachedAccess = createCachedAccess(receiver, nthParent.getAccessTree(), first);
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54 return first.replace(createCachedAccess).executeWith(frame, receiver, arguments);
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55 } else {
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56 return first.replace(createGenericAccess(nthParent.getAccessTree())).executeWith(frame, receiver, arguments);
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57 }
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58 }
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59
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60 private static CachedObjectAccessNode createCachedAccess(TruffleObject receiver, Message accessTree, ObjectAccessNode next) {
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61 ForeignAccessFactory accessFactory = receiver.getForeignAccessFactory();
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62 return new CachedObjectAccessNode(Truffle.getRuntime().createDirectCallNode(accessFactory.getAccess(accessTree)), next, accessFactory.getLanguageCheck());
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63 }
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64
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65 private static GenericObjectAccessNode createGenericAccess(Message access) {
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66 return new GenericObjectAccessNode(access);
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67 }
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68 }
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69
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70 class GenericObjectAccessNode extends ObjectAccessNode {
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71
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72 private final Message access;
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73 @Child private IndirectCallNode indirectCallNode;
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74
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75 public GenericObjectAccessNode(Message access) {
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76 this.access = access;
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77 indirectCallNode = Truffle.getRuntime().createIndirectCallNode();
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78 }
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79
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80 public GenericObjectAccessNode(GenericObjectAccessNode prev) {
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81 this(prev.access);
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82 }
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83
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84 @Override
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85 public Object executeWith(VirtualFrame frame, TruffleObject truffleObject, Object[] arguments) {
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86 return indirectCallNode.call(frame, truffleObject.getForeignAccessFactory().getAccess(access), ForeignAccessArguments.create(truffleObject, arguments));
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87 }
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88 }
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89
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90 class CachedObjectAccessNode extends ObjectAccessNode {
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91 @Child private DirectCallNode callTarget;
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92 @Child private ObjectAccessNode next;
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93
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94 private final InteropPredicate languageCheck;
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95
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96 protected CachedObjectAccessNode(DirectCallNode callTarget, ObjectAccessNode next, InteropPredicate languageCheck) {
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97 this.callTarget = callTarget;
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98 this.next = next;
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99 this.languageCheck = languageCheck;
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100 this.callTarget.forceInlining();
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101 }
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102
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103 protected CachedObjectAccessNode(CachedObjectAccessNode prev) {
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104 this(prev.callTarget, prev.next, prev.languageCheck);
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105 }
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106
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107 @Override
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108 public Object executeWith(VirtualFrame frame, TruffleObject receiver, Object[] arguments) {
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109 return doAccess(frame, receiver, arguments);
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110 }
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111
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112 private Object doAccess(VirtualFrame frame, TruffleObject receiver, Object[] arguments) {
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113 if (languageCheck.test(receiver)) {
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114 return callTarget.call(frame, ForeignAccessArguments.create(receiver, arguments));
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115 } else {
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116 return doNext(frame, receiver, arguments);
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117 }
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118 }
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119
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120 private Object doNext(VirtualFrame frame, TruffleObject receiver, Object[] arguments) {
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121 return next.executeWith(frame, receiver, arguments);
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122 }
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123 }