Mercurial > hg > graal-jvmci-8
annotate graal/com.oracle.truffle.api/src/com/oracle/truffle/api/instrument/impl/DefaultASTPrinter.java @ 15779:8c34e2cc4add
Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
author | Michael Van De Vanter <michael.van.de.vanter@oracle.com> |
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date | Mon, 19 May 2014 17:14:36 -0700 |
parents | 0c6d8a08e31b |
children | 915ebb306fcc |
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1 /* |
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2 * Copyright (c) 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.impl; |
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26 |
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27 import java.io.*; |
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28 import java.util.*; |
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29 |
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30 import com.oracle.truffle.api.*; |
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31 import com.oracle.truffle.api.instrument.*; |
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32 import com.oracle.truffle.api.nodes.*; |
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33 import com.oracle.truffle.api.nodes.NodeUtil.NodeClass; |
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34 import com.oracle.truffle.api.nodes.NodeUtil.NodeField; |
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35 import com.oracle.truffle.api.nodes.NodeUtil.NodeFieldKind; |
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36 |
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37 /** |
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38 * A language-agnostic for printing out various pieces of a Truffle AST. |
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39 */ |
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40 public class DefaultASTPrinter implements ASTPrinter { |
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41 |
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42 public DefaultASTPrinter() { |
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43 } |
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44 |
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45 public void printTree(PrintWriter p, Node node, int maxDepth, Node markNode) { |
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46 printTree(p, node, maxDepth, markNode, 1); |
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47 p.println(); |
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48 p.flush(); |
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49 } |
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50 |
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51 public String printTreeToString(Node node, int maxDepth, Node markNode) { |
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52 StringWriter out = new StringWriter(); |
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53 printTree(new PrintWriter(out), node, maxDepth, markNode); |
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54 return out.toString(); |
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55 } |
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56 |
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57 public String printTreeToString(Node node, int maxDepth) { |
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58 return printTreeToString(node, maxDepth, null); |
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59 } |
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60 |
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61 private static void printTree(PrintWriter p, Node node, int maxDepth, Node markNode, int level) { |
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62 if (node == null) { |
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63 p.print("null"); |
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64 return; |
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65 } |
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66 |
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67 p.print(nodeName(node)); |
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68 |
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69 String sep = ""; |
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70 p.print("("); |
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71 |
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72 final SourceSection src = node.getSourceSection(); |
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73 if (src != null) { |
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74 if (!(src instanceof NullSourceSection)) { |
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75 p.print(src.getSource().getName() + ":" + src.getStartLine()); |
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76 } |
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77 } |
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78 if (node instanceof PhylumTagged) { |
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79 final PhylumTagged taggedNode = (PhylumTagged) node; |
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80 p.print("["); |
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81 String prefix = ""; |
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82 for (PhylumTag tag : taggedNode.getPhylumTags()) { |
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83 p.print(prefix); |
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84 prefix = ","; |
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85 p.print(tag.toString()); |
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86 } |
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87 p.print("]"); |
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88 } |
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89 |
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90 ArrayList<NodeField> childFields = new ArrayList<>(); |
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91 |
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92 for (NodeField field : NodeClass.get(node.getClass()).getFields()) { |
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93 if (field.getKind() == NodeFieldKind.CHILD || field.getKind() == NodeFieldKind.CHILDREN) { |
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94 childFields.add(field); |
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95 } else if (field.getKind() == NodeFieldKind.DATA) { |
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96 // p.print(sep); |
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97 // sep = ", "; |
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98 // |
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99 // final String fieldName = field.getName(); |
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100 // switch (fieldName) { |
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101 // |
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102 // } |
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103 // p.print(fieldName); |
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104 // p.print(" = "); |
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105 // p.print(field.loadValue(node)); |
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106 } |
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107 } |
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108 p.print(")"); |
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109 |
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110 if (level <= maxDepth) { |
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111 |
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112 if (childFields.size() != 0) { |
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113 p.print(" {"); |
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114 for (NodeField field : childFields) { |
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115 |
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116 Object value = field.loadValue(node); |
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117 if (value == null) { |
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118 printNewLine(p, level); |
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119 p.print(field.getName()); |
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120 p.print(" = null "); |
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121 } else if (field.getKind() == NodeFieldKind.CHILD) { |
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122 final Node valueNode = (Node) value; |
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123 printNewLine(p, level, valueNode == markNode); |
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124 p.print(field.getName()); |
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125 p.print(" = "); |
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126 printTree(p, valueNode, maxDepth, markNode, level + 1); |
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127 } else if (field.getKind() == NodeFieldKind.CHILDREN) { |
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128 printNewLine(p, level); |
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129 p.print(field.getName()); |
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130 Node[] children = (Node[]) value; |
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131 p.print(" = ["); |
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132 sep = ""; |
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133 for (Node child : children) { |
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134 p.print(sep); |
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135 sep = ", "; |
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136 printTree(p, child, maxDepth, markNode, level + 1); |
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137 } |
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138 p.print("]"); |
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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 private static void printNewLine(PrintWriter p, int level, boolean mark) { |
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151 p.println(); |
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152 for (int i = 0; i < level; i++) { |
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153 if (mark && i == 0) { |
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154 p.print(" -->"); |
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155 } else { |
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156 p.print(" "); |
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157 } |
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158 } |
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159 } |
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160 |
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161 private static void printNewLine(PrintWriter p, int level) { |
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162 printNewLine(p, level, false); |
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163 } |
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164 |
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165 private static String nodeName(Node node) { |
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166 return node.getClass().getSimpleName(); |
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167 } |
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168 |
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169 } |