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annotate graal/com.oracle.truffle.api/src/com/oracle/truffle/api/instrument/ExecutionEvents.java @ 16859:1051d6e4b61b

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truffle api: update comments
author Bernhard Urban <bernhard.urban@jku.at>
date Tue, 19 Aug 2014 13:51:14 +0200
parents 0c6d8a08e31b
children
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1 /*
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2 * Copyright (c) 2013, 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.api.instrument;
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26
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27 import com.oracle.truffle.api.frame.*;
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28 import com.oracle.truffle.api.nodes.*;
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29
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30 /**
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31 * Normal events at each Truffle AST {@link Node} that occur during guest language execution, and
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32 * which the {@link Probe} associated with that node, if any, reports to every {@link Instrument}
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33 * attached to the {@link Probe}.
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34 * <p>
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35 * <strong>Disclaimer:</strong> experimental interface under development.
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36 */
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37 public interface ExecutionEvents {
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38
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39 /**
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40 * Notifies that an AST node's execute method has just been entered. Callers should assure that
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41 * a matching call to {@link #leave(Node, VirtualFrame, Object)} always follows.
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42 *
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43 * @param astNode The AST node on which the execute method is being called
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44 * @param frame The frame being passed to the execute method
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45 */
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46 void enter(Node astNode, VirtualFrame frame);
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47
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48 /**
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49 * Notifies that an AST Node's void-valued execute method is about to exit.
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50 * <p>
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51 * Callers should assure (via {@code try/finally}) that a matching call to this method always
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52 * follows a call to {@link #enter(Node, VirtualFrame)}.
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53 *
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54 * @param astNode The AST node on which the execute method is being called
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55 * @param frame The frame that was passed to the execute method
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56 */
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57 void leave(Node astNode, VirtualFrame frame);
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58
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59 /**
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60 * Notifies that an AST Node's boolean-valued execute method is about to exit.
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61 * <p>
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62 * Callers should assure (via {@code try/finally}) that a matching call to this method always
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63 * follows a call to {@link #enter(Node, VirtualFrame)}.
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64 *
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65 * @param astNode The AST node on which the execute method is being called
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66 * @param frame The frame that was passed to the execute method
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67 * @param result The result of the call to the execute method.
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68 */
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69 void leave(Node astNode, VirtualFrame frame, boolean result);
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70
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71 /**
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72 * Notifies that an AST Node's byte-valued execute method is about to exit.
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73 * <p>
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74 * Callers should assure (via {@code try/finally}) that a matching call to this method always
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75 * follows a call to {@link #enter(Node, VirtualFrame)}.
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76 *
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77 * @param astNode The AST node on which the execute method is being called
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78 * @param frame The frame that was passed to the execute method
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79 * @param result The result of the call to the execute method.
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80 */
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81 void leave(Node astNode, VirtualFrame frame, byte result);
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82
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83 /**
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84 * Notifies that an AST Node's short-valued execute method is about to exit.
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85 * <p>
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86 * Callers should assure (via {@code try/finally}) that a matching call to this method always
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87 * follows a call to {@link #enter(Node, VirtualFrame)}.
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88 *
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89 * @param astNode The AST node on which the execute method is being called
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90 * @param frame The frame that was passed to the execute method
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91 * @param result The result of the call to the execute method.
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92 */
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93 void leave(Node astNode, VirtualFrame frame, short result);
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94
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95 /**
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96 * Notifies that an AST Node's integer-valued execute method is about to exit.
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97 * <p>
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98 * Callers should assure (via {@code try/finally}) that a matching call to this method always
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99 * follows a call to {@link #enter(Node, VirtualFrame)}.
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100 *
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101 * @param astNode The AST node on which the execute method is being called
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102 * @param frame The frame that was passed to the execute method
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103 * @param result The result of the call to the execute method.
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104 */
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105 void leave(Node astNode, VirtualFrame frame, int result);
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106
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107 /**
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108 * Notifies that an AST Node's long-valued execute method is about to exit.
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109 * <p>
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110 * Callers should assure (via {@code try/finally}) that a matching call to this method always
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111 * follows a call to {@link #enter(Node, VirtualFrame)}.
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112 *
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113 * @param astNode The AST node on which the execute method is being called
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114 * @param frame The frame that was passed to the execute method
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115 * @param result The result of the call to the execute method.
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116 */
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117 void leave(Node astNode, VirtualFrame frame, long result);
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118
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119 /**
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120 * Notifies that an AST Node's float-valued execute method is about to exit.
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121 * <p>
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122 * Callers should assure (via {@code try/finally}) that a matching call to this method always
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123 * follows a call to {@link #enter(Node, VirtualFrame)}.
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124 *
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125 * @param astNode The AST node on which the execute method is being called
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126 * @param frame The frame that was passed to the execute method
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127 * @param result The result of the call to the execute method.
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128 */
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129 void leave(Node astNode, VirtualFrame frame, float result);
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130
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131 /**
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132 * Notifies that an AST Node's double-valued execute method is about to exit.
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133 * <p>
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134 * Callers should assure (via {@code try/finally}) that a matching call to this method always
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135 * follows a call to {@link #enter(Node, VirtualFrame)}.
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136 *
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137 * @param astNode The AST node on which the execute method is being called
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138 * @param frame The frame that was passed to the execute method
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139 * @param result The result of the call to the execute method.
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140 */
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141 void leave(Node astNode, VirtualFrame frame, double result);
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142
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143 /**
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144 * Notifies that an AST Node's char-valued execute method is about to exit.
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145 * <p>
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146 * Callers should assure (via {@code try/finally}) that a matching call to this method always
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147 * follows a call to {@link #enter(Node, VirtualFrame)}.
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148 *
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149 * @param astNode The AST node on which the execute method is being called
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150 * @param frame The frame that was passed to the execute method
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151 * @param result The result of the call to the execute method.
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152 */
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153 void leave(Node astNode, VirtualFrame frame, char result);
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154
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155 /**
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156 * Notifies that an AST Node's object-valued execute method is about to exit.
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157 * <p>
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158 * Callers should assure (via {@code try/finally}) that a matching call to this method always
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159 * follows a call to {@link #enter(Node, VirtualFrame)}.
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160 *
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161 * @param astNode The AST node on which the execute method is being called
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162 * @param frame The frame that was passed to the execute method
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163 * @param result The result of the call to the execute method.
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164 */
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165 void leave(Node astNode, VirtualFrame frame, Object result);
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166
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167 /**
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168 * Notifies that an AST Node's execute method is about to leave under exceptional conditions,
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169 * returning no value.
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170 * <p>
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171 * Callers should assure (via {@code try/finally}) that a matching call to this method always
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172 * follows a call to {@link #enter(Node, VirtualFrame)}.
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173 *
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174 * @param astNode The AST node on which the execute method is being called
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175 * @param frame The frame that was passed to the execute method
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176 * @param e the exception associated with the unusual return
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177 */
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178 void leaveExceptional(Node astNode, VirtualFrame frame, Exception e);
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179
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180 }