VerifyErroneousAnnotationsAttributed.java revision 2244:c1c20e618930
1/* 2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24/* 25 * @test 26 * @bug 8029161 8029376 27 */ 28 29import com.sun.source.tree.CompilationUnitTree; 30import com.sun.source.tree.IdentifierTree; 31import com.sun.source.tree.MemberSelectTree; 32import com.sun.source.util.JavacTask; 33import com.sun.source.util.TreePathScanner; 34import com.sun.source.util.Trees; 35import com.sun.tools.javac.api.JavacTool; 36import java.io.IOException; 37import java.net.URI; 38import java.net.URISyntaxException; 39import java.util.ArrayList; 40import java.util.Arrays; 41import java.util.List; 42import javax.lang.model.element.Element; 43import javax.lang.model.element.ElementKind; 44import javax.lang.model.type.TypeKind; 45import javax.tools.Diagnostic; 46import javax.tools.DiagnosticListener; 47import javax.tools.JavaFileObject; 48import javax.tools.SimpleJavaFileObject; 49 50public class VerifyErroneousAnnotationsAttributed { 51 public static void main(String... args) throws IOException, URISyntaxException { 52 new VerifyErroneousAnnotationsAttributed().run(); 53 } 54 55 void run() { 56 int failCount = 0; 57 for (String ann : generateAnnotations()) { 58 String code = PATTERN.replace("PLACEHOLDER", ann); 59 try { 60 validate(code); 61 } catch (Throwable t) { 62 System.out.println("Failed for: "); 63 System.out.println(code); 64 t.printStackTrace(System.out); 65 failCount++; 66 } 67 } 68 69 if (failCount > 0) { 70 throw new IllegalStateException("failed sub-tests: " + failCount); 71 } 72 } 73 74 List<String> generateAnnotations() { 75 List<String> result = new ArrayList<>(); 76 77 result.addAll(Kind.ANNOTATION.generateValue(2, true)); 78 result.addAll(Kind.ANNOTATION.generateValue(2, false)); 79 80 return result; 81 } 82 83 enum Kind { 84 INT("i", "ValueInt") { 85 @Override public List<String> generateValue(int depth, boolean valid) { 86 if (valid) { 87 return Arrays.asList("INT_VALUE"); 88 } else { 89 return Arrays.asList("BROKEN_INT_VALUE"); 90 } 91 } 92 }, 93 ANNOTATION("a", "ValueAnnotation") { 94 @Override public List<String> generateValue(int depth, boolean valid) { 95 String ad = "@Annotation" + depth + (valid ? "" : "Unknown"); 96 97 if (depth <= 0) { 98 return Arrays.asList(ad); 99 } 100 101 List<String> result = new ArrayList<>(); 102 final Kind[][] generateKindCombinations = new Kind[][] { 103 new Kind[] {Kind.INT}, 104 new Kind[] {Kind.ANNOTATION}, 105 new Kind[] {Kind.INT, Kind.ANNOTATION} 106 }; 107 108 for (boolean generateAssignment : new boolean[] {false, true}) { 109 for (boolean generateValid : new boolean[] {false, true}) { 110 for (Kind[] generateKinds : generateKindCombinations) { 111 if (generateKinds.length > 1 && generateValid && !generateAssignment) { 112 //skip: the same code is generated for generateValid == false. 113 continue; 114 } 115 List<String> attributes = generateAttributes(generateAssignment, 116 generateValid, depth, generateKinds); 117 String annotation; 118 if (generateAssignment) { 119 annotation = ad; 120 } else { 121 annotation = ad + generateKinds[0].annotationWithValueSuffix; 122 } 123 for (String attr : attributes) { 124 result.add(annotation + "(" + attr + ")"); 125 } 126 } 127 } 128 } 129 130 return result; 131 } 132 133 List<String> generateAttributes(boolean generateAssignment, boolean valid, int depth, 134 Kind... kinds) { 135 List<List<String>> combinations = new ArrayList<>(); 136 137 for (boolean subValid : new boolean[] {false, true}) { 138 for (Kind k : kinds) { 139 String prefix; 140 141 if (generateAssignment) { 142 if (valid) { 143 prefix = k.validAttributeName + "="; 144 } else { 145 prefix = "invalid" + k.validAttributeName + "="; 146 } 147 } else { 148 prefix = ""; 149 } 150 151 List<String> combination = new ArrayList<>(); 152 153 combinations.add(combination); 154 155 for (String val : k.generateValue(depth - 1, subValid)) { 156 combination.add(prefix + val); 157 } 158 } 159 } 160 161 List<String> result = new ArrayList<>(); 162 163 combine(combinations, new StringBuilder(), result); 164 165 return result; 166 } 167 168 void combine(List<List<String>> combinations, StringBuilder current, List<String> to) { 169 if (combinations.isEmpty()) { 170 to.add(current.toString()); 171 return ; 172 } 173 174 int currLen = current.length(); 175 176 for (String str : combinations.get(0)) { 177 if (current.length() > 0) current.append(", "); 178 current.append(str); 179 180 combine(combinations.subList(1, combinations.size()), current, to); 181 182 current.delete(currLen, current.length()); 183 } 184 } 185 }; 186 String validAttributeName; 187 String annotationWithValueSuffix; 188 189 private Kind(String validAttributeName, String annotationWithValueSuffix) { 190 this.validAttributeName = validAttributeName; 191 this.annotationWithValueSuffix = annotationWithValueSuffix; 192 } 193 194 public abstract List<String> generateValue(int depth, boolean valid); 195 196 } 197 198 private static final String PATTERN = 199 "public class Test {\n" + 200 " public static final int INT_VALUE = 1;\n" + 201 " @interface Annotation0 {}\n" + 202 " @interface Annotation1 {int i() default 0; Annotation0 a() default @Annotation0; }\n" + 203 " @interface Annotation2 {int i() default 0; Annotation1 a() default @Annotation1; }\n" + 204 " @interface Annotation1ValueInt {int value() default 0; }\n" + 205 " @interface Annotation2ValueInt {int value() default 0; }\n" + 206 " @interface Annotation1ValueAnnotation {Annotation0 a() default @Annotation0; }\n" + 207 " @interface Annotation2ValueAnnotation {Annotation1 a() default @Annotation1; }\n" + 208 " PLACEHOLDER\n" + 209 " private void test() { }\n" + 210 "}"; 211 212 static final class TestCase { 213 final String code; 214 final boolean valid; 215 216 public TestCase(String code, boolean valid) { 217 this.code = code; 218 this.valid = valid; 219 } 220 221 } 222 223 final JavacTool tool = JavacTool.create(); 224 final DiagnosticListener<JavaFileObject> devNull = new DiagnosticListener<JavaFileObject>() { 225 @Override public void report(Diagnostic<? extends JavaFileObject> diagnostic) {} 226 }; 227 228 void validate(String code) throws IOException, URISyntaxException { 229 JavacTask task = tool.getTask(null, 230 null, 231 devNull, 232 Arrays.asList("-XDshouldStopPolicy=FLOW"), 233 null, 234 Arrays.asList(new MyFileObject(code))); 235 236 final Trees trees = Trees.instance(task); 237 final CompilationUnitTree cut = task.parse().iterator().next(); 238 task.analyze(); 239 240 //ensure all the annotation attributes are annotated meaningfully 241 //all the attributes in the test file should contain either an identifier 242 //or a select, so only checking those for a reasonable Element/Symbol. 243 new TreePathScanner<Void, Void>() { 244 @Override 245 public Void visitIdentifier(IdentifierTree node, Void p) { 246 verifyAttributedMeaningfully(); 247 return super.visitIdentifier(node, p); 248 } 249 @Override 250 public Void visitMemberSelect(MemberSelectTree node, Void p) { 251 verifyAttributedMeaningfully(); 252 return super.visitMemberSelect(node, p); 253 } 254 private void verifyAttributedMeaningfully() { 255 Element el = trees.getElement(getCurrentPath()); 256 257 if (el == null || el.getKind() == ElementKind.OTHER || 258 el.asType().getKind() == TypeKind.OTHER) { 259 throw new IllegalStateException("Not attributed properly: " + 260 getCurrentPath().getParentPath().getLeaf()); 261 } 262 } 263 }.scan(cut, null); 264 } 265 static class MyFileObject extends SimpleJavaFileObject { 266 private final String text; 267 public MyFileObject(String text) { 268 super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE); 269 this.text = text; 270 } 271 @Override 272 public CharSequence getCharContent(boolean ignoreEncodingErrors) { 273 return text; 274 } 275 } 276} 277