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annotate truffle/com.oracle.truffle.api.dsl.test/src/com/oracle/truffle/api/dsl/test/processor/Compile.java @ 21951:9c8c0937da41

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Moving all sources into truffle subdirectory
author Jaroslav Tulach <jaroslav.tulach@oracle.com>
date Wed, 17 Jun 2015 10:58:08 +0200
parents graal/com.oracle.truffle.api.dsl.test/src/com/oracle/truffle/api/dsl/test/processor/Compile.java@b1530a6cce8c
children dc83cc1f94f2
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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.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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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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21 * questions.
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22 */
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23 package com.oracle.truffle.api.dsl.test.processor;
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24
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25 import static org.junit.Assert.*;
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27 import java.io.*;
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28 import java.net.*;
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29 import java.util.*;
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31 import javax.tools.*;
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32 import javax.tools.JavaFileObject.Kind;
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33
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34 final class Compile implements DiagnosticListener<JavaFileObject> {
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35 private final List<Diagnostic<? extends JavaFileObject>> errors = new ArrayList<>();
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36 private final Map<String, byte[]> classes;
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37 private final String sourceLevel;
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38
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39 private Compile(Class<?> processor, String code, String sl) {
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40 this.sourceLevel = sl;
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41 classes = compile(processor, code);
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42 }
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43
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44 /**
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45 * Performs compilation of given HTML page and associated Java code.
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46 */
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47 public static Compile create(Class<?> processor, String code) {
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48 return new Compile(processor, code, "1.7");
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49 }
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50
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51 /** Checks for given class among compiled resources. */
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52 public byte[] get(String res) {
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53 return classes.get(res);
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54 }
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55
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56 /**
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57 * Obtains errors created during compilation.
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58 */
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59 public List<Diagnostic<? extends JavaFileObject>> getErrors() {
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60 List<Diagnostic<? extends JavaFileObject>> err;
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61 err = new ArrayList<>();
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62 for (Diagnostic<? extends JavaFileObject> diagnostic : errors) {
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63 if (diagnostic.getKind() == Diagnostic.Kind.ERROR) {
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64 err.add(diagnostic);
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65 }
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66 }
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67 return err;
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68 }
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69
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70 private Map<String, byte[]> compile(Class<?> processor, final String code) {
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71 StandardJavaFileManager sjfm = ToolProvider.getSystemJavaCompiler().getStandardFileManager(this, null, null);
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72
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73 final Map<String, ByteArrayOutputStream> class2BAOS;
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74 class2BAOS = new HashMap<>();
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75
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76 JavaFileObject file = new SimpleJavaFileObject(URI.create("mem://mem"), Kind.SOURCE) {
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77 @Override
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78 public CharSequence getCharContent(boolean ignoreEncodingErrors) {
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79 return code;
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80 }
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81 };
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82
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83 JavaFileManager jfm = new ForwardingJavaFileManager<JavaFileManager>(sjfm) {
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84 @Override
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85 public JavaFileObject getJavaFileForOutput(Location location, String className, Kind kind, FileObject sibling) throws IOException {
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86 if (kind == Kind.CLASS) {
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87 final ByteArrayOutputStream buffer = new ByteArrayOutputStream();
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88
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89 class2BAOS.put(className.replace('.', '/') + ".class", buffer);
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90 return new SimpleJavaFileObject(sibling.toUri(), kind) {
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91 @Override
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92 public OutputStream openOutputStream() {
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93 return buffer;
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94 }
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95 };
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96 }
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97
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98 if (kind == Kind.SOURCE) {
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99 final String n = className.replace('.', '/') + ".java";
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100 final URI un;
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101 try {
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102 un = new URI("mem://" + n);
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103 } catch (URISyntaxException ex) {
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104 throw new IOException(ex);
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105 }
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106 return new VirtFO(un/* sibling.toUri() */, kind, n);
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107 }
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108
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109 throw new IllegalStateException();
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110 }
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111
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112 @Override
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113 public boolean isSameFile(FileObject a, FileObject b) {
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114 if (a instanceof VirtFO && b instanceof VirtFO) {
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115 return ((VirtFO) a).getName().equals(((VirtFO) b).getName());
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116 }
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117
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118 return super.isSameFile(a, b);
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119 }
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120
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121 class VirtFO extends SimpleJavaFileObject {
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122
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123 private final String n;
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124
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125 public VirtFO(URI uri, Kind kind, String n) {
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126 super(uri, kind);
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127 this.n = n;
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128 }
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129
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130 private final ByteArrayOutputStream data = new ByteArrayOutputStream();
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131
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132 @Override
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133 public OutputStream openOutputStream() {
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134 return data;
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135 }
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136
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137 @Override
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138 public String getName() {
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139 return n;
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140 }
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141
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142 @Override
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143 public CharSequence getCharContent(boolean ignoreEncodingErrors) throws IOException {
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144 data.close();
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145 return new String(data.toByteArray());
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146 }
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147 }
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148 };
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149 List<String> args = Arrays.asList("-source", sourceLevel, "-target", "1.7", //
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150 "-processor", processor.getName());
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151
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152 ToolProvider.getSystemJavaCompiler().getTask(null, jfm, this, args, null, Arrays.asList(file)).call();
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153
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154 Map<String, byte[]> result = new HashMap<>();
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155
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156 for (Map.Entry<String, ByteArrayOutputStream> e : class2BAOS.entrySet()) {
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157 result.put(e.getKey(), e.getValue().toByteArray());
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158 }
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159
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160 return result;
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161 }
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162
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163 @Override
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164 public void report(Diagnostic<? extends JavaFileObject> diagnostic) {
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165 errors.add(diagnostic);
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166 }
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167
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168 void assertErrors() {
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169 assertFalse("There are supposed to be some errors", getErrors().isEmpty());
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170 }
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171
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172 void assertNoErrors() {
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173 assertTrue("There are supposed to be no errors: " + getErrors(), getErrors().isEmpty());
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174 }
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175
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176 void assertError(String expMsg) {
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177 StringBuilder sb = new StringBuilder();
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178 sb.append("Can't find ").append(expMsg).append(" among:");
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179 for (Diagnostic<? extends JavaFileObject> e : errors) {
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180 String msg = e.getMessage(Locale.US);
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181 if (msg.contains(expMsg)) {
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182 return;
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183 }
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184 sb.append("\n");
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185 sb.append(msg);
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186 }
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187 fail(sb.toString());
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188 }
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189 }