Mercurial > hg > graal-compiler
annotate graal/com.oracle.truffle.api.test/src/com/oracle/truffle/api/test/ReturnTypeSpecializationTest.java @ 15018:db4254246f9a
Remove Constant.forObject and Constant.asObject to improve compiler/VM separation
author | Christian Wimmer <christian.wimmer@oracle.com> |
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date | Mon, 07 Apr 2014 16:09:17 -0700 |
parents | a08b8694f556 |
children | 94f16a759646 |
rev | line source |
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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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1 /* |
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2 * Copyright (c) 2012, 2013, 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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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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4 * |
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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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5 * This code is free software; you can redistribute it and/or modify it |
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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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6 * under the terms of the GNU General Public License version 2 only, as |
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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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7 * published by the Free Software Foundation. |
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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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8 * |
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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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13 * accompanied this code). |
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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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14 * |
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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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15 * You should have received a copy of the GNU General Public License version |
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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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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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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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21 * questions. |
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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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22 */ |
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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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23 package com.oracle.truffle.api.test; |
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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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24 |
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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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25 import org.junit.*; |
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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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26 |
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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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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.nodes.*; |
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30 |
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31 /** |
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32 * <h3>Specializing Return Types</h3> |
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33 * |
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34 * <p> |
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35 * In order to avoid boxing and/or type casts on the return value of a node, the return value the |
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36 * method for executing a node can have a specific type and need not be of type |
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37 * {@link java.lang.Object}. For dynamically typed languages, this return type is something that |
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38 * should be speculated on. When the speculation fails and the child node cannot return the |
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39 * appropriate type of value, it can use an {@link UnexpectedResultException} to still pass the |
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40 * result to the caller. In such a case, the caller must rewrite itself to a more general version in |
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41 * order to avoid future failures of this kind. |
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42 * </p> |
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43 */ |
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44 public class ReturnTypeSpecializationTest { |
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45 |
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46 @Test |
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47 public void test() { |
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48 TruffleRuntime runtime = Truffle.getRuntime(); |
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49 FrameDescriptor frameDescriptor = new FrameDescriptor(); |
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50 FrameSlot slot = frameDescriptor.addFrameSlot("localVar", FrameSlotKind.Int); |
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51 TestRootNode rootNode = new TestRootNode(frameDescriptor, new IntAssignLocal(slot, new StringTestChildNode()), new IntReadLocal(slot)); |
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52 CallTarget target = runtime.createCallTarget(rootNode); |
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53 Assert.assertEquals(FrameSlotKind.Int, slot.getKind()); |
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54 Object result = target.call(); |
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55 Assert.assertEquals("42", result); |
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56 Assert.assertEquals(FrameSlotKind.Object, slot.getKind()); |
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57 } |
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58 |
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59 class TestRootNode extends RootNode { |
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60 |
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61 @Child TestChildNode left; |
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62 @Child TestChildNode right; |
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63 |
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64 public TestRootNode(FrameDescriptor descriptor, TestChildNode left, TestChildNode right) { |
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65 super(null, descriptor); |
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66 this.left = left; |
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67 this.right = right; |
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68 } |
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69 |
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70 @Override |
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71 public Object execute(VirtualFrame frame) { |
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72 left.execute(frame); |
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73 return right.execute(frame); |
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74 } |
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75 } |
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77 abstract class TestChildNode extends Node { |
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78 |
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79 public TestChildNode() { |
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80 super(null); |
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81 } |
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82 |
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83 abstract Object execute(VirtualFrame frame); |
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84 |
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85 int executeInt(VirtualFrame frame) throws UnexpectedResultException { |
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86 Object result = execute(frame); |
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87 if (result instanceof Integer) { |
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88 return (Integer) result; |
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89 } |
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90 throw new UnexpectedResultException(result); |
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91 } |
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92 } |
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93 |
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94 abstract class FrameSlotNode extends TestChildNode { |
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95 |
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96 protected final FrameSlot slot; |
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97 |
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98 public FrameSlotNode(FrameSlot slot) { |
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99 this.slot = slot; |
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100 } |
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101 } |
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102 |
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103 class StringTestChildNode extends TestChildNode { |
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104 |
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105 @Override |
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106 Object execute(VirtualFrame frame) { |
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107 return "42"; |
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108 } |
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109 |
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110 } |
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111 |
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112 class IntAssignLocal extends FrameSlotNode { |
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113 |
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114 @Child private TestChildNode value; |
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115 |
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116 IntAssignLocal(FrameSlot slot, TestChildNode value) { |
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117 super(slot); |
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118 this.value = value; |
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119 } |
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120 |
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121 @Override |
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122 Object execute(VirtualFrame frame) { |
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123 try { |
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124 int result = value.executeInt(frame); |
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125 frame.setInt(slot, result); |
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126 } catch (UnexpectedResultException e) { |
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127 frame.setObject(slot, e.getResult()); |
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128 replace(new ObjectAssignLocal(slot, value)); |
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129 } |
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130 return null; |
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131 } |
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132 } |
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133 |
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134 class ObjectAssignLocal extends FrameSlotNode { |
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135 |
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136 @Child private TestChildNode value; |
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137 |
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138 ObjectAssignLocal(FrameSlot slot, TestChildNode value) { |
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139 super(slot); |
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140 this.value = value; |
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141 } |
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142 |
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143 @Override |
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144 Object execute(VirtualFrame frame) { |
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145 Object o = value.execute(frame); |
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146 frame.setObject(slot, o); |
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147 return null; |
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148 } |
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149 } |
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150 |
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151 class IntReadLocal extends FrameSlotNode { |
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152 |
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153 IntReadLocal(FrameSlot slot) { |
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154 super(slot); |
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155 } |
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156 |
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157 @Override |
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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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158 Object execute(VirtualFrame frame) { |
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159 try { |
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160 return frame.getInt(slot); |
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161 } catch (FrameSlotTypeException e) { |
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162 return replace(new ObjectReadLocal(slot)).execute(frame); |
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163 } |
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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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164 } |
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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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165 |
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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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166 @Override |
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167 int executeInt(VirtualFrame frame) throws UnexpectedResultException { |
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168 try { |
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169 return frame.getInt(slot); |
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170 } catch (FrameSlotTypeException e) { |
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171 return replace(new ObjectReadLocal(slot)).executeInt(frame); |
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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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172 } |
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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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173 } |
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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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174 } |
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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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175 |
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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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176 class ObjectReadLocal extends FrameSlotNode { |
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177 |
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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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178 ObjectReadLocal(FrameSlot slot) { |
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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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179 super(slot); |
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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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180 } |
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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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181 |
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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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182 @Override |
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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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183 Object execute(VirtualFrame frame) { |
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184 try { |
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185 return frame.getObject(slot); |
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186 } catch (FrameSlotTypeException e) { |
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187 throw new IllegalStateException(e); |
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188 } |
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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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189 } |
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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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190 } |
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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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191 } |