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annotate truffle/com.oracle.truffle.api.dsl.test/src/com/oracle/truffle/api/dsl/test/examples/ExampleNode.java @ 21951:9c8c0937da41

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Moving all sources into truffle subdirectory
author Jaroslav Tulach <jaroslav.tulach@oracle.com>
date Wed, 17 Jun 2015 10:58:08 +0200
parents graal/com.oracle.truffle.api.dsl.test/src/com/oracle/truffle/api/dsl/test/examples/ExampleNode.java@a79a3e467245
children 5bc7f7b867ab
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1 /*
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2 * Copyright (c) 2015, 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.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.oracle.truffle.api.dsl.test.examples;
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24
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25 import com.oracle.truffle.api.*;
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26 import com.oracle.truffle.api.dsl.*;
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27 import com.oracle.truffle.api.dsl.internal.*;
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28 import com.oracle.truffle.api.frame.*;
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29 import com.oracle.truffle.api.nodes.*;
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30
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31 @TypeSystemReference(ExampleTypes.class)
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32 @NodeChild(value = "args", type = ExampleNode[].class)
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33 public abstract class ExampleNode extends Node {
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34
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35 public Object execute(@SuppressWarnings("unused") VirtualFrame frame) {
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36 // will get implemented by the DSL.
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37 throw new UnsupportedOperationException();
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38 }
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39
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40 @Override
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41 public String toString() {
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42 if (this instanceof SpecializedNode) {
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43 return ((SpecializedNode) this).getSpecializationNode().toString();
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44 } else {
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45 return super.toString();
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46 }
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47 }
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48
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49 public static CallTarget createTarget(ExampleNode node) {
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50 return Truffle.getRuntime().createCallTarget(new ExampleRootNode(node));
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51 }
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52
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53 @SuppressWarnings("unchecked")
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54 public static <T> T getNode(CallTarget target) {
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55 return (T) ((ExampleRootNode) ((RootCallTarget) target).getRootNode()).child;
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56 }
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57
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58 public static ExampleNode[] createArguments(int count) {
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59 ExampleNode[] nodes = new ExampleNode[count];
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60 for (int i = 0; i < count; i++) {
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61 nodes[i] = new ExampleArgumentNode(i);
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62 }
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63 return nodes;
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64 }
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65
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66 private static class ExampleRootNode extends RootNode {
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67
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68 @Child ExampleNode child;
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69
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70 public ExampleRootNode(ExampleNode child) {
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71 this.child = child;
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72 }
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73
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74 @Override
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75 public Object execute(VirtualFrame frame) {
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76 return child.execute(frame);
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77 }
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78
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79 }
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80
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81 private static class ExampleArgumentNode extends ExampleNode {
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82
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83 private final int index;
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84
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85 public ExampleArgumentNode(int index) {
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86 this.index = index;
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87 }
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88
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89 @Override
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90 public Object execute(VirtualFrame frame) {
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91 Object[] arguments = frame.getArguments();
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92 if (index < arguments.length) {
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93 return arguments[index];
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94 }
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95 return null;
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96 }
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97 }
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98
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99 public static CallTarget createDummyTarget(int argumentIndex) {
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100 return Truffle.getRuntime().createCallTarget(new DummyCallRootNode(argumentIndex));
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101 }
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102
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103 private static class DummyCallRootNode extends RootNode {
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104
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105 private final int argumentIndex;
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106
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107 public DummyCallRootNode(int argumentIndex) {
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108 this.argumentIndex = argumentIndex;
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109 }
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110
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111 @Override
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112 public Object execute(VirtualFrame frame) {
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113 return frame.getArguments()[argumentIndex];
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114 }
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115
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116 @Override
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117 public String toString() {
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118 return "DummyRootNode[arg = " + argumentIndex + "]";
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119 }
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120
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121 }
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122
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123 }