Mercurial > hg > truffle
annotate truffle/com.oracle.truffle.api.dsl.test/src/com/oracle/truffle/api/dsl/test/processor/Compile.java @ 22157:dc83cc1f94f2
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author | Jaroslav Tulach <jaroslav.tulach@oracle.com> |
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date | Wed, 16 Sep 2015 11:33:22 +0200 |
parents | 9c8c0937da41 |
children | 5309cc9668e3 |
rev | line source |
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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 java.io.ByteArrayOutputStream; |
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26 import java.io.IOException; |
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27 import java.io.OutputStream; |
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28 import java.net.URI; |
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29 import java.net.URISyntaxException; |
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30 import java.util.ArrayList; |
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31 import java.util.Arrays; |
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32 import java.util.HashMap; |
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33 import java.util.List; |
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34 import java.util.Locale; |
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35 import java.util.Map; |
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36 import javax.tools.Diagnostic; |
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37 import javax.tools.DiagnosticListener; |
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38 import javax.tools.FileObject; |
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39 import javax.tools.ForwardingJavaFileManager; |
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40 import javax.tools.JavaFileManager; |
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41 import javax.tools.JavaFileObject; |
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42 import javax.tools.JavaFileObject.Kind; |
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43 import javax.tools.SimpleJavaFileObject; |
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44 import javax.tools.StandardJavaFileManager; |
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45 import javax.tools.ToolProvider; |
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46 import static org.junit.Assert.assertFalse; |
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47 import static org.junit.Assert.assertTrue; |
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48 import static org.junit.Assert.fail; |
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49 |
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50 final class Compile implements DiagnosticListener<JavaFileObject> { |
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51 private final List<Diagnostic<? extends JavaFileObject>> errors = new ArrayList<>(); |
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52 private final Map<String, byte[]> classes; |
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53 private final String sourceLevel; |
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54 |
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55 private Compile(Class<?> processor, String code, String sl) { |
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56 this.sourceLevel = sl; |
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57 classes = compile(processor, code); |
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58 } |
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59 |
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60 /** |
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61 * Performs compilation of given HTML page and associated Java code. |
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62 */ |
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63 public static Compile create(Class<?> processor, String code) { |
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64 return new Compile(processor, code, "1.7"); |
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65 } |
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66 |
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67 /** Checks for given class among compiled resources. */ |
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68 public byte[] get(String res) { |
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69 return classes.get(res); |
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70 } |
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71 |
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72 /** |
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73 * Obtains errors created during compilation. |
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74 */ |
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75 public List<Diagnostic<? extends JavaFileObject>> getErrors() { |
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76 List<Diagnostic<? extends JavaFileObject>> err; |
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77 err = new ArrayList<>(); |
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78 for (Diagnostic<? extends JavaFileObject> diagnostic : errors) { |
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79 if (diagnostic.getKind() == Diagnostic.Kind.ERROR) { |
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80 err.add(diagnostic); |
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81 } |
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82 } |
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83 return err; |
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84 } |
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85 |
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86 private Map<String, byte[]> compile(Class<?> processor, final String code) { |
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87 StandardJavaFileManager sjfm = ToolProvider.getSystemJavaCompiler().getStandardFileManager(this, null, null); |
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88 |
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89 final Map<String, ByteArrayOutputStream> class2BAOS; |
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90 class2BAOS = new HashMap<>(); |
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91 |
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92 JavaFileObject file = new SimpleJavaFileObject(URI.create("mem://mem"), Kind.SOURCE) { |
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93 @Override |
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94 public CharSequence getCharContent(boolean ignoreEncodingErrors) { |
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95 return code; |
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96 } |
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97 }; |
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98 |
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99 JavaFileManager jfm = new ForwardingJavaFileManager<JavaFileManager>(sjfm) { |
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100 @Override |
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101 public JavaFileObject getJavaFileForOutput(Location location, String className, Kind kind, FileObject sibling) throws IOException { |
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102 if (kind == Kind.CLASS) { |
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103 final ByteArrayOutputStream buffer = new ByteArrayOutputStream(); |
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104 |
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105 class2BAOS.put(className.replace('.', '/') + ".class", buffer); |
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106 return new SimpleJavaFileObject(sibling.toUri(), kind) { |
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107 @Override |
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108 public OutputStream openOutputStream() { |
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109 return buffer; |
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110 } |
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111 }; |
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112 } |
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113 |
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114 if (kind == Kind.SOURCE) { |
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115 final String n = className.replace('.', '/') + ".java"; |
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116 final URI un; |
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117 try { |
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118 un = new URI("mem://" + n); |
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119 } catch (URISyntaxException ex) { |
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120 throw new IOException(ex); |
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121 } |
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122 return new VirtFO(un/* sibling.toUri() */, kind, n); |
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123 } |
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124 |
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125 throw new IllegalStateException(); |
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126 } |
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127 |
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128 @Override |
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129 public boolean isSameFile(FileObject a, FileObject b) { |
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130 if (a instanceof VirtFO && b instanceof VirtFO) { |
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131 return ((VirtFO) a).getName().equals(((VirtFO) b).getName()); |
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132 } |
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133 |
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134 return super.isSameFile(a, b); |
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135 } |
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136 |
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137 class VirtFO extends SimpleJavaFileObject { |
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138 |
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139 private final String n; |
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140 |
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141 public VirtFO(URI uri, Kind kind, String n) { |
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142 super(uri, kind); |
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143 this.n = n; |
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144 } |
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145 |
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146 private final ByteArrayOutputStream data = new ByteArrayOutputStream(); |
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147 |
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148 @Override |
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149 public OutputStream openOutputStream() { |
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150 return data; |
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151 } |
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152 |
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153 @Override |
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154 public String getName() { |
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155 return n; |
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156 } |
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157 |
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158 @Override |
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159 public CharSequence getCharContent(boolean ignoreEncodingErrors) throws IOException { |
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160 data.close(); |
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161 return new String(data.toByteArray()); |
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162 } |
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163 } |
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164 }; |
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165 List<String> args = Arrays.asList("-source", sourceLevel, "-target", "1.7", // |
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166 "-processor", processor.getName()); |
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167 |
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168 ToolProvider.getSystemJavaCompiler().getTask(null, jfm, this, args, null, Arrays.asList(file)).call(); |
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169 |
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170 Map<String, byte[]> result = new HashMap<>(); |
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171 |
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172 for (Map.Entry<String, ByteArrayOutputStream> e : class2BAOS.entrySet()) { |
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173 result.put(e.getKey(), e.getValue().toByteArray()); |
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174 } |
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175 |
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176 return result; |
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177 } |
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178 |
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179 @Override |
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180 public void report(Diagnostic<? extends JavaFileObject> diagnostic) { |
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181 errors.add(diagnostic); |
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182 } |
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183 |
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184 void assertErrors() { |
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185 assertFalse("There are supposed to be some errors", getErrors().isEmpty()); |
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186 } |
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187 |
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188 void assertNoErrors() { |
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189 assertTrue("There are supposed to be no errors: " + getErrors(), getErrors().isEmpty()); |
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190 } |
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191 |
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192 void assertError(String expMsg) { |
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193 StringBuilder sb = new StringBuilder(); |
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194 sb.append("Can't find ").append(expMsg).append(" among:"); |
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195 for (Diagnostic<? extends JavaFileObject> e : errors) { |
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196 String msg = e.getMessage(Locale.US); |
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197 if (msg.contains(expMsg)) { |
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198 return; |
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199 } |
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200 sb.append("\n"); |
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201 sb.append(msg); |
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202 } |
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203 fail(sb.toString()); |
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204 } |
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205 } |