Mercurial > hg > truffle
annotate truffle/com.oracle.truffle.api/src/com/oracle/truffle/api/instrument/impl/DefaultASTPrinter.java @ 22157:dc83cc1f94f2
Using fully qualified imports
author | Jaroslav Tulach <jaroslav.tulach@oracle.com> |
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date | Wed, 16 Sep 2015 11:33:22 +0200 |
parents | b2d1c8ff592a |
children | c896a8e70777 |
rev | line source |
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1 /* |
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2 * Copyright (c) 2014, 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. 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.impl; |
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26 |
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27 import com.oracle.truffle.api.instrument.ASTPrinter; |
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28 import com.oracle.truffle.api.instrument.InstrumentationNode; |
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29 import com.oracle.truffle.api.instrument.ProbeNode.WrapperNode; |
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30 import com.oracle.truffle.api.nodes.Node; |
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31 import com.oracle.truffle.api.nodes.NodeClass; |
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32 import com.oracle.truffle.api.nodes.NodeFieldAccessor; |
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33 import com.oracle.truffle.api.nodes.NodeFieldAccessor.NodeFieldKind; |
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34 import com.oracle.truffle.api.nodes.NodeUtil; |
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35 import com.oracle.truffle.api.source.SourceSection; |
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36 import java.io.PrintWriter; |
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37 import java.io.StringWriter; |
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38 import java.util.ArrayList; |
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39 |
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40 /** |
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41 * A language-agnostic for printing out various pieces of a Truffle AST. |
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42 */ |
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43 public class DefaultASTPrinter implements ASTPrinter { |
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44 |
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45 public DefaultASTPrinter() { |
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46 } |
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47 |
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48 public void printTree(PrintWriter p, Node node, int maxDepth, Node markNode) { |
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49 printTree(p, node, maxDepth, markNode, 1); |
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50 p.println(); |
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51 p.flush(); |
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52 } |
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53 |
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54 public String printTreeToString(Node node, int maxDepth, Node markNode) { |
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55 StringWriter out = new StringWriter(); |
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56 printTree(new PrintWriter(out), node, maxDepth, markNode); |
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57 return out.toString(); |
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58 } |
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59 |
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60 public String printTreeToString(Node node, int maxDepth) { |
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61 return printTreeToString(node, maxDepth, null); |
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62 } |
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63 |
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64 public String printNodeWithInstrumentation(Node node) { |
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65 if (node == null) { |
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66 return "null"; |
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67 } |
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68 final StringBuilder sb = new StringBuilder(); |
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69 sb.append(nodeName(node)); |
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70 sb.append("("); |
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71 if (node instanceof InstrumentationNode) { |
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72 sb.append(instrumentInfo((InstrumentationNode) node)); |
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73 } |
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74 sb.append(sourceInfo(node)); |
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75 sb.append(NodeUtil.printSyntaxTags(node)); |
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76 sb.append(")"); |
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77 final Node parent = node.getParent(); |
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78 if (parent instanceof WrapperNode) { |
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79 final WrapperNode wrapper = (WrapperNode) parent; |
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80 sb.append(" Probed"); |
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81 sb.append(NodeUtil.printSyntaxTags(wrapper)); |
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82 } |
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83 return sb.toString(); |
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84 } |
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85 |
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86 protected void printTree(PrintWriter p, Node node, int maxDepth, Node markNode, int level) { |
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87 if (node == null) { |
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88 p.print("null"); |
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89 return; |
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90 } |
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91 |
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92 p.print(nodeName(node)); |
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93 |
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94 p.print("("); |
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95 |
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96 if (node instanceof InstrumentationNode) { |
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97 p.print(instrumentInfo((InstrumentationNode) node)); |
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98 } |
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99 |
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100 p.print(sourceInfo(node)); |
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101 |
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102 p.print(NodeUtil.printSyntaxTags(node)); |
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103 |
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104 ArrayList<NodeFieldAccessor> childFields = new ArrayList<>(); |
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105 |
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106 for (NodeFieldAccessor field : NodeClass.get(node).getFields()) { |
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107 if (field.getKind() == NodeFieldKind.CHILD || field.getKind() == NodeFieldKind.CHILDREN) { |
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108 childFields.add(field); |
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109 } else if (field.getKind() == NodeFieldKind.DATA) { |
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110 // p.print(sep); |
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111 // sep = ", "; |
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112 // |
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113 // final String fieldName = field.getName(); |
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114 // switch (fieldName) { |
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115 // |
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116 // } |
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117 // p.print(fieldName); |
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118 // p.print(" = "); |
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119 // p.print(field.loadValue(node)); |
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120 } |
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121 } |
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122 p.print(")"); |
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123 |
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124 if (level <= maxDepth) { |
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125 |
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126 if (childFields.size() != 0) { |
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127 p.print(" {"); |
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128 for (NodeFieldAccessor field : childFields) { |
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129 |
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130 Object value = field.loadValue(node); |
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131 if (value == null) { |
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132 printNewLine(p, level); |
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133 p.print(field.getName()); |
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134 p.print(" = null "); |
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135 } else if (field.getKind() == NodeFieldKind.CHILD) { |
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136 printChild(p, maxDepth, markNode, level, field, value); |
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137 } else if (field.getKind() == NodeFieldKind.CHILDREN) { |
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138 printChildren(p, maxDepth, markNode, level, field, value); |
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139 } else { |
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140 printNewLine(p, level); |
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141 p.print(field.getName()); |
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142 } |
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143 } |
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144 printNewLine(p, level - 1); |
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145 p.print("}"); |
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146 } |
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147 } |
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148 } |
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149 |
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150 protected void printChildren(PrintWriter p, int maxDepth, Node markNode, int level, NodeFieldAccessor field, Object value) { |
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151 printNewLine(p, level); |
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152 p.print(field.getName()); |
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153 Node[] children = (Node[]) value; |
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154 p.print(" = ["); |
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155 String sep = ""; |
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156 for (Node child : children) { |
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157 p.print(sep); |
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158 sep = ", "; |
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159 printTree(p, child, maxDepth, markNode, level + 1); |
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160 } |
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161 p.print("]"); |
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162 } |
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163 |
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164 protected void printChild(PrintWriter p, int maxDepth, Node markNode, int level, NodeFieldAccessor field, Object value) { |
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165 final Node valueNode = (Node) value; |
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166 printNewLine(p, level, valueNode == markNode); |
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167 p.print(field.getName()); |
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168 p.print(" = "); |
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169 printTree(p, valueNode, maxDepth, markNode, level + 1); |
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170 } |
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171 |
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172 protected static void printNewLine(PrintWriter p, int level, boolean mark) { |
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173 p.println(); |
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174 for (int i = 0; i < level; i++) { |
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175 if (mark && i == 0) { |
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176 p.print(" -->"); |
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177 } else { |
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178 p.print(" "); |
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179 } |
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180 } |
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181 } |
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182 |
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183 protected static void printNewLine(PrintWriter p, int level) { |
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184 printNewLine(p, level, false); |
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185 } |
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186 |
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187 protected static String nodeName(Node node) { |
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188 return node.getClass().getSimpleName(); |
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189 } |
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190 |
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191 protected static String sourceInfo(Node node) { |
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192 final SourceSection src = node.getSourceSection(); |
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193 if (src != null) { |
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194 if (src.getSource() == null) { |
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195 return src.getShortDescription(); |
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196 } else { |
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197 return src.getSource().getName() + ":" + src.getStartLine(); |
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198 } |
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199 } |
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200 return ""; |
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201 } |
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202 |
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203 protected static String instrumentInfo(InstrumentationNode node) { |
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204 final String info = node.instrumentationInfo(); |
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205 return info == null ? "" : info; |
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206 } |
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207 |
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208 } |