Mercurial > hg > graal-jvmci-8
annotate graal/com.oracle.truffle.api/src/com/oracle/truffle/api/impl/DefaultTruffleRuntime.java @ 18870:c65f549c4015
DefaultTruffleRuntime fields can be final
author | Andreas Woess <andreas.woess@jku.at> |
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date | Thu, 15 Jan 2015 06:34:53 +0100 |
parents | e3c95cbbb50c |
children | afa70d3e8159 |
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, 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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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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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 * 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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12 * 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.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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13 * 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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14 * 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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15 * 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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16 * |
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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 * 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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18 * 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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19 * 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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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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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 package com.oracle.truffle.api.impl; |
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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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27 import java.util.*; |
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28 |
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29 import com.oracle.truffle.api.*; |
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30 import com.oracle.truffle.api.frame.*; |
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31 import com.oracle.truffle.api.nodes.*; |
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32 |
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33 /** |
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34 * Default implementation of the Truffle runtime if the virtual machine does not provide a better |
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35 * performing alternative. |
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36 * <p> |
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37 * This is an implementation-specific class. Do not use or instantiate it. Instead, use |
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38 * {@link Truffle#getRuntime()} to retrieve the current {@link TruffleRuntime}. |
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39 */ |
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40 public final class DefaultTruffleRuntime implements TruffleRuntime { |
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41 |
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42 private final ThreadLocal<LinkedList<FrameInstance>> stackTraces = new ThreadLocal<>(); |
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43 private final ThreadLocal<FrameInstance> currentFrames = new ThreadLocal<>(); |
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44 private final Map<RootCallTarget, Void> callTargets = Collections.synchronizedMap(new WeakHashMap<RootCallTarget, Void>()); |
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45 |
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46 public DefaultTruffleRuntime() { |
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47 if (Truffle.getRuntime() != null) { |
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48 throw new IllegalArgumentException("Cannot instantiate DefaultTruffleRuntime. Use Truffle.getRuntime() instead."); |
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49 } |
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50 } |
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51 |
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52 @Override |
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53 public String getName() { |
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54 return "Default Truffle Runtime"; |
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55 } |
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56 |
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57 @Override |
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58 public RootCallTarget createCallTarget(RootNode rootNode) { |
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59 DefaultCallTarget target = new DefaultCallTarget(rootNode); |
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60 callTargets.put(target, null); |
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61 return target; |
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62 } |
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63 |
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64 public DirectCallNode createDirectCallNode(CallTarget target) { |
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65 return new DefaultDirectCallNode(target); |
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66 } |
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67 |
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68 public IndirectCallNode createIndirectCallNode() { |
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69 return new DefaultIndirectCallNode(); |
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70 } |
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71 |
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72 @Override |
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73 public VirtualFrame createVirtualFrame(Object[] arguments, FrameDescriptor frameDescriptor) { |
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74 return new DefaultVirtualFrame(frameDescriptor, arguments); |
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75 } |
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76 |
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77 @Override |
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78 public MaterializedFrame createMaterializedFrame(Object[] arguments) { |
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79 return createMaterializedFrame(arguments, new FrameDescriptor()); |
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80 } |
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81 |
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82 @Override |
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83 public MaterializedFrame createMaterializedFrame(Object[] arguments, FrameDescriptor frameDescriptor) { |
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84 return new DefaultMaterializedFrame(new DefaultVirtualFrame(frameDescriptor, arguments)); |
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85 } |
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86 |
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87 @Override |
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88 public CompilerOptions createCompilerOptions() { |
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89 return new DefaultCompilerOptions(); |
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90 } |
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91 |
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92 @Override |
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93 public Assumption createAssumption() { |
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94 return createAssumption(null); |
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95 } |
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96 |
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97 @Override |
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98 public Assumption createAssumption(String name) { |
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99 return new DefaultAssumption(name); |
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100 } |
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101 |
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102 private LinkedList<FrameInstance> getThreadLocalStackTrace() { |
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103 LinkedList<FrameInstance> result = stackTraces.get(); |
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104 if (result == null) { |
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105 result = new LinkedList<>(); |
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106 stackTraces.set(result); |
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107 } |
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108 return result; |
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109 } |
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110 |
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111 public FrameInstance setCurrentFrame(FrameInstance newValue) { |
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112 FrameInstance oldValue = currentFrames.get(); |
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113 currentFrames.set(newValue); |
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114 return oldValue; |
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115 } |
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116 |
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117 public void pushFrame(FrameInstance frame) { |
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118 getThreadLocalStackTrace().addFirst(frame); |
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119 } |
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120 |
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121 public void popFrame() { |
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122 getThreadLocalStackTrace().removeFirst(); |
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123 } |
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124 |
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125 @Override |
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126 public <T> T iterateFrames(FrameInstanceVisitor<T> visitor) { |
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127 T result = null; |
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128 for (FrameInstance frameInstance : getThreadLocalStackTrace()) { |
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129 result = visitor.visitFrame(frameInstance); |
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130 if (result != null) { |
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131 return result; |
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132 } |
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133 } |
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134 return result; |
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135 } |
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136 |
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137 @Override |
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138 public FrameInstance getCallerFrame() { |
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139 return getThreadLocalStackTrace().peekFirst(); |
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140 } |
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141 |
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142 @Override |
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143 public Collection<RootCallTarget> getCallTargets() { |
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144 return Collections.unmodifiableSet(callTargets.keySet()); |
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145 } |
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146 |
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147 @Override |
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148 public FrameInstance getCurrentFrame() { |
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149 return currentFrames.get(); |
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150 } |
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151 |
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152 public <T> T getCapability(Class<T> capability) { |
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153 return null; |
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154 } |
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155 |
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156 public void notifyTransferToInterpreter() { |
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157 } |
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158 |
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159 public LoopNode createLoopNode(RepeatingNode repeating) { |
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160 if (!(repeating instanceof Node)) { |
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161 throw new IllegalArgumentException("Repeating node must be of type Node."); |
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162 } |
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163 return new DefaultLoopNode(repeating); |
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164 } |
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Truffle Instrumentation: major API revision, based around the Probe and Instrument classes; add Instrumentable API for language implementors, with most details automated; reimplemented to handle AST splitting automatically; more JUnit tests.
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165 |
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166 } |