Mon, 28 Feb 2011 11:48:53 +0000
7015430: Incorrect thrown type determined for unchecked invocations
Summary: Thrown types do not get updated after 15.12.2.8, and do not get erased as per 15.12.2.6
Reviewed-by: jjg, dlsmith
jjg@451 | 1 | /* |
ksrini@826 | 2 | * Copyright (c) 2009, 2011 Oracle and/or its affiliates. All rights reserved. |
jjg@451 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
jjg@451 | 4 | * |
jjg@451 | 5 | * This code is free software; you can redistribute it and/or modify it |
jjg@451 | 6 | * under the terms of the GNU General Public License version 2 only, as |
ohair@554 | 7 | * published by the Free Software Foundation. Oracle designates this |
jjg@451 | 8 | * particular file as subject to the "Classpath" exception as provided |
ohair@554 | 9 | * by Oracle in the LICENSE file that accompanied this code. |
jjg@451 | 10 | * |
jjg@451 | 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
jjg@451 | 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
jjg@451 | 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
jjg@451 | 14 | * version 2 for more details (a copy is included in the LICENSE file that |
jjg@451 | 15 | * accompanied this code). |
jjg@451 | 16 | * |
jjg@451 | 17 | * You should have received a copy of the GNU General Public License version |
jjg@451 | 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
jjg@451 | 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
jjg@451 | 20 | * |
ohair@554 | 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
ohair@554 | 22 | * or visit www.oracle.com if you need additional information or have any |
ohair@554 | 23 | * questions. |
jjg@451 | 24 | */ |
jjg@451 | 25 | package com.sun.tools.classfile; |
jjg@451 | 26 | |
jjg@451 | 27 | import java.util.Deque; |
jjg@451 | 28 | import java.util.HashMap; |
jjg@451 | 29 | import java.util.HashSet; |
jjg@451 | 30 | import java.util.LinkedList; |
jjg@451 | 31 | import java.util.List; |
jjg@451 | 32 | import java.util.Map; |
jjg@451 | 33 | import java.util.Set; |
jjg@451 | 34 | import java.util.regex.Pattern; |
jjg@451 | 35 | |
jjg@451 | 36 | import com.sun.tools.classfile.Dependency.Finder; |
jjg@451 | 37 | import com.sun.tools.classfile.Dependency.Filter; |
jjg@451 | 38 | import com.sun.tools.classfile.Dependency.Location; |
jjg@451 | 39 | import com.sun.tools.classfile.Type.ArrayType; |
jjg@451 | 40 | import com.sun.tools.classfile.Type.ClassSigType; |
jjg@451 | 41 | import com.sun.tools.classfile.Type.ClassType; |
jjg@451 | 42 | import com.sun.tools.classfile.Type.MethodType; |
jjg@451 | 43 | import com.sun.tools.classfile.Type.SimpleType; |
jjg@451 | 44 | import com.sun.tools.classfile.Type.TypeParamType; |
jjg@451 | 45 | import com.sun.tools.classfile.Type.WildcardType; |
jjg@451 | 46 | |
jjg@451 | 47 | import static com.sun.tools.classfile.ConstantPool.*; |
jjg@451 | 48 | |
jjg@451 | 49 | /** |
jjg@451 | 50 | * A framework for determining {@link Dependency dependencies} between class files. |
jjg@451 | 51 | * |
jjg@451 | 52 | * A {@link Dependency.Finder finder} is used to identify the dependencies of |
jjg@451 | 53 | * individual classes. Some finders may return subtypes of {@code Dependency} to |
jjg@451 | 54 | * further characterize the type of dependency, such as a dependency on a |
jjg@451 | 55 | * method within a class. |
jjg@451 | 56 | * |
jjg@451 | 57 | * A {@link Dependency.Filter filter} may be used to restrict the set of |
jjg@451 | 58 | * dependencies found by a finder. |
jjg@451 | 59 | * |
jjg@451 | 60 | * Dependencies that are found may be passed to a {@link Dependencies.Recorder |
jjg@451 | 61 | * recorder} so that the dependencies can be stored in a custom data structure. |
jjg@451 | 62 | */ |
jjg@451 | 63 | public class Dependencies { |
jjg@451 | 64 | /** |
jjg@451 | 65 | * Thrown when a class file cannot be found. |
jjg@451 | 66 | */ |
jjg@451 | 67 | public static class ClassFileNotFoundException extends Exception { |
jjg@451 | 68 | private static final long serialVersionUID = 3632265927794475048L; |
jjg@451 | 69 | |
jjg@451 | 70 | public ClassFileNotFoundException(String className) { |
jjg@451 | 71 | super(className); |
jjg@451 | 72 | this.className = className; |
jjg@451 | 73 | } |
jjg@451 | 74 | |
jjg@451 | 75 | public ClassFileNotFoundException(String className, Throwable cause) { |
jjg@451 | 76 | this(className); |
jjg@451 | 77 | initCause(cause); |
jjg@451 | 78 | } |
jjg@451 | 79 | |
jjg@451 | 80 | public final String className; |
jjg@451 | 81 | } |
jjg@451 | 82 | |
jjg@451 | 83 | /** |
jjg@451 | 84 | * Thrown when an exception is found processing a class file. |
jjg@451 | 85 | */ |
jjg@451 | 86 | public static class ClassFileError extends Error { |
jjg@451 | 87 | private static final long serialVersionUID = 4111110813961313203L; |
jjg@451 | 88 | |
jjg@451 | 89 | public ClassFileError(Throwable cause) { |
jjg@451 | 90 | initCause(cause); |
jjg@451 | 91 | } |
jjg@451 | 92 | } |
jjg@451 | 93 | |
jjg@451 | 94 | /** |
jjg@451 | 95 | * Service provider interface to locate and read class files. |
jjg@451 | 96 | */ |
jjg@451 | 97 | public interface ClassFileReader { |
jjg@451 | 98 | /** |
jjg@451 | 99 | * Get the ClassFile object for a specified class. |
jjg@451 | 100 | * @param className the name of the class to be returned. |
jjg@451 | 101 | * @return the ClassFile for the given class |
jjg@451 | 102 | * @throws Dependencies#ClassFileNotFoundException if the classfile cannot be |
jjg@451 | 103 | * found |
jjg@451 | 104 | */ |
jjg@451 | 105 | public ClassFile getClassFile(String className) |
jjg@451 | 106 | throws ClassFileNotFoundException; |
jjg@451 | 107 | } |
jjg@451 | 108 | |
jjg@451 | 109 | /** |
jjg@451 | 110 | * Service provide interface to handle results. |
jjg@451 | 111 | */ |
jjg@451 | 112 | public interface Recorder { |
jjg@451 | 113 | /** |
jjg@451 | 114 | * Record a dependency that has been found. |
jjg@451 | 115 | * @param d |
jjg@451 | 116 | */ |
jjg@451 | 117 | public void addDependency(Dependency d); |
jjg@451 | 118 | } |
jjg@451 | 119 | |
jjg@451 | 120 | /** |
jjg@451 | 121 | * Get the default finder used to locate the dependencies for a class. |
jjg@451 | 122 | * @return the default finder |
jjg@451 | 123 | */ |
jjg@451 | 124 | public static Finder getDefaultFinder() { |
jjg@451 | 125 | return new APIDependencyFinder(AccessFlags.ACC_PRIVATE); |
jjg@451 | 126 | } |
jjg@451 | 127 | |
jjg@451 | 128 | /** |
jjg@451 | 129 | * Get a finder used to locate the API dependencies for a class. |
jjg@451 | 130 | * These include the superclass, superinterfaces, and classes referenced in |
jjg@451 | 131 | * the declarations of fields and methods. The fields and methods that |
jjg@451 | 132 | * are checked can be limited according to a specified access. |
jjg@451 | 133 | * The access parameter must be one of {@link AccessFlags#ACC_PUBLIC ACC_PUBLIC}, |
jjg@451 | 134 | * {@link AccessFlags#ACC_PRIVATE ACC_PRIVATE}, |
jjg@451 | 135 | * {@link AccessFlags#ACC_PROTECTED ACC_PROTECTED}, or 0 for |
jjg@451 | 136 | * package private access. Members with greater than or equal accessibility |
jjg@451 | 137 | * to that specified will be searched for dependencies. |
jjg@451 | 138 | * @param access the access of members to be checked |
jjg@451 | 139 | * @return an API finder |
jjg@451 | 140 | */ |
jjg@451 | 141 | public static Finder getAPIFinder(int access) { |
jjg@451 | 142 | return new APIDependencyFinder(access); |
jjg@451 | 143 | } |
jjg@451 | 144 | |
jjg@451 | 145 | /** |
jjg@451 | 146 | * Get the finder used to locate the dependencies for a class. |
jjg@451 | 147 | * @return the finder |
jjg@451 | 148 | */ |
jjg@451 | 149 | public Finder getFinder() { |
jjg@451 | 150 | if (finder == null) |
jjg@451 | 151 | finder = getDefaultFinder(); |
jjg@451 | 152 | return finder; |
jjg@451 | 153 | } |
jjg@451 | 154 | |
jjg@451 | 155 | /** |
jjg@451 | 156 | * Set the finder used to locate the dependencies for a class. |
jjg@451 | 157 | * @param f the finder |
jjg@451 | 158 | */ |
jjg@451 | 159 | public void setFinder(Finder f) { |
jjg@451 | 160 | f.getClass(); // null check |
jjg@451 | 161 | finder = f; |
jjg@451 | 162 | } |
jjg@451 | 163 | |
jjg@451 | 164 | /** |
jjg@451 | 165 | * Get the default filter used to determine included when searching |
jjg@451 | 166 | * the transitive closure of all the dependencies. |
jjg@451 | 167 | * Unless overridden, the default filter accepts all dependencies. |
jjg@451 | 168 | * @return the default filter. |
jjg@451 | 169 | */ |
jjg@451 | 170 | public static Filter getDefaultFilter() { |
jjg@451 | 171 | return DefaultFilter.instance(); |
jjg@451 | 172 | } |
jjg@451 | 173 | |
jjg@451 | 174 | /** |
jjg@451 | 175 | * Get a filter which uses a regular expression on the target's class name |
jjg@451 | 176 | * to determine if a dependency is of interest. |
jjg@451 | 177 | * @param pattern the pattern used to match the target's class name |
jjg@451 | 178 | * @return a filter for matching the target class name with a regular expression |
jjg@451 | 179 | */ |
jjg@451 | 180 | public static Filter getRegexFilter(Pattern pattern) { |
jjg@451 | 181 | return new TargetRegexFilter(pattern); |
jjg@451 | 182 | } |
jjg@451 | 183 | |
jjg@451 | 184 | /** |
jjg@451 | 185 | * Get a filter which checks the package of a target's class name |
jjg@451 | 186 | * to determine if a dependency is of interest. The filter checks if the |
jjg@451 | 187 | * package of the target's class matches any of a set of given package |
jjg@451 | 188 | * names. The match may optionally match subpackages of the given names as well. |
jjg@451 | 189 | * @param packageNames the package names used to match the target's class name |
jjg@451 | 190 | * @param matchSubpackages whether or not to match subpackages as well |
jjg@451 | 191 | * @return a filter for checking the target package name against a list of package names |
jjg@451 | 192 | */ |
jjg@451 | 193 | public static Filter getPackageFilter(Set<String> packageNames, boolean matchSubpackages) { |
jjg@451 | 194 | return new TargetPackageFilter(packageNames, matchSubpackages); |
jjg@451 | 195 | } |
jjg@451 | 196 | |
jjg@451 | 197 | /** |
jjg@451 | 198 | * Get the filter used to determine the dependencies included when searching |
jjg@451 | 199 | * the transitive closure of all the dependencies. |
jjg@451 | 200 | * Unless overridden, the default filter accepts all dependencies. |
jjg@451 | 201 | * @return the filter |
jjg@451 | 202 | */ |
jjg@451 | 203 | public Filter getFilter() { |
jjg@451 | 204 | if (filter == null) |
jjg@451 | 205 | filter = getDefaultFilter(); |
jjg@451 | 206 | return filter; |
jjg@451 | 207 | } |
jjg@451 | 208 | |
jjg@451 | 209 | /** |
jjg@451 | 210 | * Set the filter used to determine the dependencies included when searching |
jjg@451 | 211 | * the transitive closure of all the dependencies. |
jjg@451 | 212 | * @param f the filter |
jjg@451 | 213 | */ |
jjg@451 | 214 | public void setFilter(Filter f) { |
jjg@451 | 215 | f.getClass(); // null check |
jjg@451 | 216 | filter = f; |
jjg@451 | 217 | } |
jjg@451 | 218 | |
jjg@451 | 219 | /** |
jjg@451 | 220 | * Find the dependencies of a class, using the current |
jjg@451 | 221 | * {@link Dependencies#getFinder finder} and |
jjg@451 | 222 | * {@link Dependencies#getFilter filter}. |
jjg@451 | 223 | * The search may optionally include the transitive closure of all the |
jjg@451 | 224 | * filtered dependencies, by also searching in the classes named in those |
jjg@451 | 225 | * dependencies. |
jjg@451 | 226 | * @param classFinder a finder to locate class files |
jjg@451 | 227 | * @param rootClassNames the names of the root classes from which to begin |
jjg@451 | 228 | * searching |
jjg@451 | 229 | * @param transitiveClosure whether or not to also search those classes |
jjg@451 | 230 | * named in any filtered dependencies that are found. |
jjg@451 | 231 | * @return the set of dependencies that were found |
jjg@451 | 232 | * @throws ClassFileNotFoundException if a required class file cannot be found |
jjg@451 | 233 | * @throws ClassFileError if an error occurs while processing a class file, |
jjg@451 | 234 | * such as an error in the internal class file structure. |
jjg@451 | 235 | */ |
jjg@451 | 236 | public Set<Dependency> findAllDependencies( |
jjg@451 | 237 | ClassFileReader classFinder, Set<String> rootClassNames, |
jjg@451 | 238 | boolean transitiveClosure) |
jjg@451 | 239 | throws ClassFileNotFoundException { |
jjg@451 | 240 | final Set<Dependency> results = new HashSet<Dependency>(); |
jjg@451 | 241 | Recorder r = new Recorder() { |
jjg@451 | 242 | public void addDependency(Dependency d) { |
jjg@451 | 243 | results.add(d); |
jjg@451 | 244 | } |
jjg@451 | 245 | }; |
jjg@451 | 246 | findAllDependencies(classFinder, rootClassNames, transitiveClosure, r); |
jjg@451 | 247 | return results; |
jjg@451 | 248 | } |
jjg@451 | 249 | |
jjg@451 | 250 | |
jjg@451 | 251 | |
jjg@451 | 252 | /** |
jjg@451 | 253 | * Find the dependencies of a class, using the current |
jjg@451 | 254 | * {@link Dependencies#getFinder finder} and |
jjg@451 | 255 | * {@link Dependencies#getFilter filter}. |
jjg@451 | 256 | * The search may optionally include the transitive closure of all the |
jjg@451 | 257 | * filtered dependencies, by also searching in the classes named in those |
jjg@451 | 258 | * dependencies. |
jjg@451 | 259 | * @param classFinder a finder to locate class files |
jjg@451 | 260 | * @param rootClassNames the names of the root classes from which to begin |
jjg@451 | 261 | * searching |
jjg@451 | 262 | * @param transitiveClosure whether or not to also search those classes |
jjg@451 | 263 | * named in any filtered dependencies that are found. |
jjg@451 | 264 | * @param recorder a recorder for handling the results |
jjg@451 | 265 | * @throws ClassFileNotFoundException if a required class file cannot be found |
jjg@451 | 266 | * @throws ClassFileError if an error occurs while processing a class file, |
jjg@451 | 267 | * such as an error in the internal class file structure. |
jjg@451 | 268 | */ |
jjg@451 | 269 | public void findAllDependencies( |
jjg@451 | 270 | ClassFileReader classFinder, Set<String> rootClassNames, |
jjg@451 | 271 | boolean transitiveClosure, Recorder recorder) |
jjg@451 | 272 | throws ClassFileNotFoundException { |
jjg@451 | 273 | Set<String> doneClasses = new HashSet<String>(); |
jjg@451 | 274 | |
jjg@451 | 275 | getFinder(); // ensure initialized |
jjg@451 | 276 | getFilter(); // ensure initialized |
jjg@451 | 277 | |
jjg@451 | 278 | // Work queue of names of classfiles to be searched. |
jjg@451 | 279 | // Entries will be unique, and for classes that do not yet have |
jjg@451 | 280 | // dependencies in the results map. |
jjg@451 | 281 | Deque<String> deque = new LinkedList<String>(rootClassNames); |
jjg@451 | 282 | |
jjg@451 | 283 | String className; |
jjg@451 | 284 | while ((className = deque.poll()) != null) { |
jjg@451 | 285 | assert (!doneClasses.contains(className)); |
jjg@451 | 286 | doneClasses.add(className); |
jjg@451 | 287 | |
jjg@451 | 288 | ClassFile cf = classFinder.getClassFile(className); |
jjg@451 | 289 | |
jjg@451 | 290 | // The following code just applies the filter to the dependencies |
jjg@451 | 291 | // followed for the transitive closure. |
jjg@451 | 292 | for (Dependency d: finder.findDependencies(cf)) { |
jjg@451 | 293 | recorder.addDependency(d); |
jjg@451 | 294 | if (transitiveClosure && filter.accepts(d)) { |
jjg@451 | 295 | String cn = d.getTarget().getClassName(); |
jjg@451 | 296 | if (!doneClasses.contains(cn)) |
jjg@451 | 297 | deque.add(cn); |
jjg@451 | 298 | } |
jjg@451 | 299 | } |
jjg@451 | 300 | } |
jjg@451 | 301 | } |
jjg@451 | 302 | |
jjg@451 | 303 | private Filter filter; |
jjg@451 | 304 | private Finder finder; |
jjg@451 | 305 | |
jjg@451 | 306 | /** |
jjg@451 | 307 | * A location identifying a class. |
jjg@451 | 308 | */ |
jjg@451 | 309 | static class SimpleLocation implements Location { |
jjg@451 | 310 | public SimpleLocation(String className) { |
jjg@451 | 311 | this.className = className; |
jjg@451 | 312 | } |
jjg@451 | 313 | |
jjg@451 | 314 | /** |
jjg@451 | 315 | * Get the name of the class being depended on. This name will be used to |
jjg@451 | 316 | * locate the class file for transitive dependency analysis. |
jjg@451 | 317 | * @return the name of the class being depended on |
jjg@451 | 318 | */ |
jjg@451 | 319 | public String getClassName() { |
jjg@451 | 320 | return className; |
jjg@451 | 321 | } |
jjg@451 | 322 | |
jjg@451 | 323 | @Override |
jjg@451 | 324 | public boolean equals(Object other) { |
jjg@451 | 325 | if (this == other) |
jjg@451 | 326 | return true; |
jjg@451 | 327 | if (!(other instanceof SimpleLocation)) |
jjg@451 | 328 | return false; |
jjg@451 | 329 | return (className.equals(((SimpleLocation) other).className)); |
jjg@451 | 330 | } |
jjg@451 | 331 | |
jjg@451 | 332 | @Override |
jjg@451 | 333 | public int hashCode() { |
jjg@451 | 334 | return className.hashCode(); |
jjg@451 | 335 | } |
jjg@451 | 336 | |
jjg@451 | 337 | @Override |
jjg@451 | 338 | public String toString() { |
jjg@451 | 339 | return className; |
jjg@451 | 340 | } |
jjg@451 | 341 | |
jjg@451 | 342 | private String className; |
jjg@451 | 343 | } |
jjg@451 | 344 | |
jjg@451 | 345 | /** |
jjg@451 | 346 | * A dependency of one class on another. |
jjg@451 | 347 | */ |
jjg@451 | 348 | static class SimpleDependency implements Dependency { |
jjg@451 | 349 | public SimpleDependency(Location origin, Location target) { |
jjg@451 | 350 | this.origin = origin; |
jjg@451 | 351 | this.target = target; |
jjg@451 | 352 | } |
jjg@451 | 353 | |
jjg@451 | 354 | public Location getOrigin() { |
jjg@451 | 355 | return origin; |
jjg@451 | 356 | } |
jjg@451 | 357 | |
jjg@451 | 358 | public Location getTarget() { |
jjg@451 | 359 | return target; |
jjg@451 | 360 | } |
jjg@451 | 361 | |
jjg@451 | 362 | @Override |
jjg@451 | 363 | public boolean equals(Object other) { |
jjg@451 | 364 | if (this == other) |
jjg@451 | 365 | return true; |
jjg@451 | 366 | if (!(other instanceof SimpleDependency)) |
jjg@451 | 367 | return false; |
jjg@451 | 368 | SimpleDependency o = (SimpleDependency) other; |
jjg@451 | 369 | return (origin.equals(o.origin) && target.equals(o.target)); |
jjg@451 | 370 | } |
jjg@451 | 371 | |
jjg@451 | 372 | @Override |
jjg@451 | 373 | public int hashCode() { |
jjg@451 | 374 | return origin.hashCode() * 31 + target.hashCode(); |
jjg@451 | 375 | } |
jjg@451 | 376 | |
jjg@451 | 377 | @Override |
jjg@451 | 378 | public String toString() { |
jjg@451 | 379 | return origin + ":" + target; |
jjg@451 | 380 | } |
jjg@451 | 381 | |
jjg@451 | 382 | private Location origin; |
jjg@451 | 383 | private Location target; |
jjg@451 | 384 | } |
jjg@451 | 385 | |
jjg@451 | 386 | |
jjg@451 | 387 | /** |
jjg@451 | 388 | * This class accepts all dependencies. |
jjg@451 | 389 | */ |
jjg@451 | 390 | static class DefaultFilter implements Filter { |
jjg@451 | 391 | private static DefaultFilter instance; |
jjg@451 | 392 | |
jjg@451 | 393 | static DefaultFilter instance() { |
jjg@451 | 394 | if (instance == null) |
jjg@451 | 395 | instance = new DefaultFilter(); |
jjg@451 | 396 | return instance; |
jjg@451 | 397 | } |
jjg@451 | 398 | |
jjg@451 | 399 | public boolean accepts(Dependency dependency) { |
jjg@451 | 400 | return true; |
jjg@451 | 401 | } |
jjg@451 | 402 | } |
jjg@451 | 403 | |
jjg@451 | 404 | /** |
jjg@451 | 405 | * This class accepts those dependencies whose target's class name matches a |
jjg@451 | 406 | * regular expression. |
jjg@451 | 407 | */ |
jjg@451 | 408 | static class TargetRegexFilter implements Filter { |
jjg@451 | 409 | TargetRegexFilter(Pattern pattern) { |
jjg@451 | 410 | this.pattern = pattern; |
jjg@451 | 411 | } |
jjg@451 | 412 | |
jjg@451 | 413 | public boolean accepts(Dependency dependency) { |
jjg@451 | 414 | return pattern.matcher(dependency.getTarget().getClassName()).matches(); |
jjg@451 | 415 | } |
jjg@451 | 416 | |
jjg@452 | 417 | private final Pattern pattern; |
jjg@451 | 418 | } |
jjg@451 | 419 | |
jjg@451 | 420 | /** |
jjg@451 | 421 | * This class accepts those dependencies whose class name is in a given |
jjg@451 | 422 | * package. |
jjg@451 | 423 | */ |
jjg@451 | 424 | static class TargetPackageFilter implements Filter { |
jjg@451 | 425 | TargetPackageFilter(Set<String> packageNames, boolean matchSubpackages) { |
jjg@451 | 426 | for (String pn: packageNames) { |
jjg@451 | 427 | if (pn.length() == 0) // implies null check as well |
jjg@451 | 428 | throw new IllegalArgumentException(); |
jjg@451 | 429 | } |
jjg@451 | 430 | this.packageNames = packageNames; |
jjg@451 | 431 | this.matchSubpackages = matchSubpackages; |
jjg@451 | 432 | } |
jjg@451 | 433 | |
jjg@451 | 434 | public boolean accepts(Dependency dependency) { |
jjg@451 | 435 | String cn = dependency.getTarget().getClassName(); |
jjg@451 | 436 | int lastSep = cn.lastIndexOf("/"); |
jjg@451 | 437 | String pn = (lastSep == -1 ? "" : cn.substring(0, lastSep)); |
jjg@451 | 438 | if (packageNames.contains(pn)) |
jjg@451 | 439 | return true; |
jjg@451 | 440 | |
jjg@451 | 441 | if (matchSubpackages) { |
jjg@451 | 442 | for (String n: packageNames) { |
jjg@451 | 443 | if (pn.startsWith(n + ".")) |
jjg@451 | 444 | return true; |
jjg@451 | 445 | } |
jjg@451 | 446 | } |
jjg@451 | 447 | |
jjg@451 | 448 | return false; |
jjg@451 | 449 | } |
jjg@451 | 450 | |
jjg@452 | 451 | private final Set<String> packageNames; |
jjg@452 | 452 | private final boolean matchSubpackages; |
jjg@451 | 453 | } |
jjg@451 | 454 | |
jjg@451 | 455 | |
jjg@451 | 456 | |
jjg@451 | 457 | /** |
jjg@451 | 458 | * This class identifies class names directly or indirectly in the constant pool. |
jjg@451 | 459 | */ |
jjg@451 | 460 | static class ClassDependencyFinder extends BasicDependencyFinder { |
jjg@451 | 461 | public Iterable<? extends Dependency> findDependencies(ClassFile classfile) { |
jjg@451 | 462 | Visitor v = new Visitor(classfile); |
jjg@451 | 463 | for (CPInfo cpInfo: classfile.constant_pool.entries()) { |
jjg@451 | 464 | v.scan(cpInfo); |
jjg@451 | 465 | } |
jjg@451 | 466 | return v.deps; |
jjg@451 | 467 | } |
jjg@451 | 468 | } |
jjg@451 | 469 | |
jjg@451 | 470 | /** |
jjg@451 | 471 | * This class identifies class names in the signatures of classes, fields, |
jjg@451 | 472 | * and methods in a class. |
jjg@451 | 473 | */ |
jjg@451 | 474 | static class APIDependencyFinder extends BasicDependencyFinder { |
jjg@451 | 475 | APIDependencyFinder(int access) { |
jjg@451 | 476 | switch (access) { |
jjg@451 | 477 | case AccessFlags.ACC_PUBLIC: |
jjg@451 | 478 | case AccessFlags.ACC_PROTECTED: |
jjg@451 | 479 | case AccessFlags.ACC_PRIVATE: |
jjg@451 | 480 | case 0: |
jjg@451 | 481 | showAccess = access; |
jjg@451 | 482 | break; |
jjg@451 | 483 | default: |
jjg@451 | 484 | throw new IllegalArgumentException("invalid access 0x" |
jjg@451 | 485 | + Integer.toHexString(access)); |
jjg@451 | 486 | } |
jjg@451 | 487 | } |
jjg@451 | 488 | |
jjg@451 | 489 | public Iterable<? extends Dependency> findDependencies(ClassFile classfile) { |
jjg@451 | 490 | try { |
jjg@451 | 491 | Visitor v = new Visitor(classfile); |
jjg@451 | 492 | v.addClass(classfile.super_class); |
jjg@451 | 493 | v.addClasses(classfile.interfaces); |
jjg@451 | 494 | // inner classes? |
jjg@451 | 495 | for (Field f : classfile.fields) { |
jjg@451 | 496 | if (checkAccess(f.access_flags)) |
jjg@451 | 497 | v.scan(f.descriptor, f.attributes); |
jjg@451 | 498 | } |
jjg@451 | 499 | for (Method m : classfile.methods) { |
jjg@451 | 500 | if (checkAccess(m.access_flags)) { |
jjg@451 | 501 | v.scan(m.descriptor, m.attributes); |
jjg@451 | 502 | Exceptions_attribute e = |
jjg@451 | 503 | (Exceptions_attribute) m.attributes.get(Attribute.Exceptions); |
jjg@451 | 504 | if (e != null) |
jjg@451 | 505 | v.addClasses(e.exception_index_table); |
jjg@451 | 506 | } |
jjg@451 | 507 | } |
jjg@451 | 508 | return v.deps; |
jjg@451 | 509 | } catch (ConstantPoolException e) { |
jjg@451 | 510 | throw new ClassFileError(e); |
jjg@451 | 511 | } |
jjg@451 | 512 | } |
jjg@451 | 513 | |
jjg@451 | 514 | boolean checkAccess(AccessFlags flags) { |
jjg@451 | 515 | // code copied from javap.Options.checkAccess |
jjg@451 | 516 | boolean isPublic = flags.is(AccessFlags.ACC_PUBLIC); |
jjg@451 | 517 | boolean isProtected = flags.is(AccessFlags.ACC_PROTECTED); |
jjg@451 | 518 | boolean isPrivate = flags.is(AccessFlags.ACC_PRIVATE); |
jjg@451 | 519 | boolean isPackage = !(isPublic || isProtected || isPrivate); |
jjg@451 | 520 | |
jjg@451 | 521 | if ((showAccess == AccessFlags.ACC_PUBLIC) && (isProtected || isPrivate || isPackage)) |
jjg@451 | 522 | return false; |
jjg@451 | 523 | else if ((showAccess == AccessFlags.ACC_PROTECTED) && (isPrivate || isPackage)) |
jjg@451 | 524 | return false; |
jjg@451 | 525 | else if ((showAccess == 0) && (isPrivate)) |
jjg@451 | 526 | return false; |
jjg@451 | 527 | else |
jjg@451 | 528 | return true; |
jjg@451 | 529 | } |
jjg@451 | 530 | |
jjg@451 | 531 | private int showAccess; |
jjg@451 | 532 | } |
jjg@451 | 533 | |
jjg@451 | 534 | static abstract class BasicDependencyFinder implements Finder { |
jjg@451 | 535 | private Map<String,Location> locations = new HashMap<String,Location>(); |
jjg@451 | 536 | |
jjg@451 | 537 | Location getLocation(String className) { |
jjg@451 | 538 | Location l = locations.get(className); |
jjg@451 | 539 | if (l == null) |
jjg@451 | 540 | locations.put(className, l = new SimpleLocation(className)); |
jjg@451 | 541 | return l; |
jjg@451 | 542 | } |
jjg@451 | 543 | |
jjg@451 | 544 | class Visitor implements ConstantPool.Visitor<Void,Void>, Type.Visitor<Void, Void> { |
jjg@451 | 545 | private ConstantPool constant_pool; |
jjg@451 | 546 | private Location origin; |
jjg@452 | 547 | Set<Dependency> deps; |
jjg@451 | 548 | |
jjg@451 | 549 | Visitor(ClassFile classFile) { |
jjg@451 | 550 | try { |
jjg@451 | 551 | constant_pool = classFile.constant_pool; |
jjg@451 | 552 | origin = getLocation(classFile.getName()); |
jjg@451 | 553 | deps = new HashSet<Dependency>(); |
jjg@451 | 554 | } catch (ConstantPoolException e) { |
jjg@451 | 555 | throw new ClassFileError(e); |
jjg@451 | 556 | } |
jjg@451 | 557 | } |
jjg@451 | 558 | |
jjg@451 | 559 | void scan(Descriptor d, Attributes attrs) { |
jjg@451 | 560 | try { |
jjg@451 | 561 | scan(new Signature(d.index).getType(constant_pool)); |
jjg@451 | 562 | Signature_attribute sa = (Signature_attribute) attrs.get(Attribute.Signature); |
jjg@451 | 563 | if (sa != null) |
jjg@451 | 564 | scan(new Signature(sa.signature_index).getType(constant_pool)); |
jjg@451 | 565 | } catch (ConstantPoolException e) { |
jjg@451 | 566 | throw new ClassFileError(e); |
jjg@451 | 567 | } |
jjg@451 | 568 | } |
jjg@451 | 569 | |
jjg@451 | 570 | void scan(CPInfo cpInfo) { |
jjg@451 | 571 | cpInfo.accept(this, null); |
jjg@451 | 572 | } |
jjg@451 | 573 | |
jjg@451 | 574 | void scan(Type t) { |
jjg@451 | 575 | t.accept(this, null); |
jjg@451 | 576 | } |
jjg@451 | 577 | |
jjg@451 | 578 | void addClass(int index) throws ConstantPoolException { |
jjg@451 | 579 | if (index != 0) { |
jjg@451 | 580 | String name = constant_pool.getClassInfo(index).getBaseName(); |
jjg@451 | 581 | if (name != null) |
jjg@451 | 582 | addDependency(name); |
jjg@451 | 583 | } |
jjg@451 | 584 | } |
jjg@451 | 585 | |
jjg@451 | 586 | void addClasses(int[] indices) throws ConstantPoolException { |
jjg@451 | 587 | for (int i: indices) |
jjg@451 | 588 | addClass(i); |
jjg@451 | 589 | } |
jjg@451 | 590 | |
jjg@451 | 591 | private void addDependency(String name) { |
jjg@451 | 592 | deps.add(new SimpleDependency(origin, getLocation(name))); |
jjg@451 | 593 | } |
jjg@451 | 594 | |
jjg@451 | 595 | // ConstantPool.Visitor methods |
jjg@451 | 596 | |
jjg@451 | 597 | public Void visitClass(CONSTANT_Class_info info, Void p) { |
jjg@451 | 598 | try { |
jjg@451 | 599 | if (info.getName().startsWith("[")) |
jjg@451 | 600 | new Signature(info.name_index).getType(constant_pool).accept(this, null); |
jjg@451 | 601 | else |
jjg@451 | 602 | addDependency(info.getBaseName()); |
jjg@451 | 603 | return null; |
jjg@451 | 604 | } catch (ConstantPoolException e) { |
jjg@451 | 605 | throw new ClassFileError(e); |
jjg@451 | 606 | } |
jjg@451 | 607 | } |
jjg@451 | 608 | |
jjg@451 | 609 | public Void visitDouble(CONSTANT_Double_info info, Void p) { |
jjg@451 | 610 | return null; |
jjg@451 | 611 | } |
jjg@451 | 612 | |
jjg@451 | 613 | public Void visitFieldref(CONSTANT_Fieldref_info info, Void p) { |
jjg@451 | 614 | return visitRef(info, p); |
jjg@451 | 615 | } |
jjg@451 | 616 | |
jjg@451 | 617 | public Void visitFloat(CONSTANT_Float_info info, Void p) { |
jjg@451 | 618 | return null; |
jjg@451 | 619 | } |
jjg@451 | 620 | |
jjg@451 | 621 | public Void visitInteger(CONSTANT_Integer_info info, Void p) { |
jjg@451 | 622 | return null; |
jjg@451 | 623 | } |
jjg@451 | 624 | |
jjg@451 | 625 | public Void visitInterfaceMethodref(CONSTANT_InterfaceMethodref_info info, Void p) { |
jjg@451 | 626 | return visitRef(info, p); |
jjg@451 | 627 | } |
jjg@451 | 628 | |
ksrini@826 | 629 | public Void visitInvokeDynamic(CONSTANT_InvokeDynamic_info info, Void p) { |
ksrini@826 | 630 | return null; |
ksrini@826 | 631 | } |
ksrini@826 | 632 | |
jjg@451 | 633 | public Void visitLong(CONSTANT_Long_info info, Void p) { |
jjg@451 | 634 | return null; |
jjg@451 | 635 | } |
jjg@451 | 636 | |
ksrini@826 | 637 | public Void visitMethodHandle(CONSTANT_MethodHandle_info info, Void p) { |
ksrini@826 | 638 | return null; |
ksrini@826 | 639 | } |
ksrini@826 | 640 | |
ksrini@826 | 641 | public Void visitMethodType(CONSTANT_MethodType_info info, Void p) { |
ksrini@826 | 642 | return null; |
ksrini@826 | 643 | } |
ksrini@826 | 644 | |
ksrini@826 | 645 | public Void visitMethodref(CONSTANT_Methodref_info info, Void p) { |
ksrini@826 | 646 | return visitRef(info, p); |
ksrini@826 | 647 | } |
ksrini@826 | 648 | |
jjg@451 | 649 | public Void visitNameAndType(CONSTANT_NameAndType_info info, Void p) { |
jjg@451 | 650 | try { |
jjg@451 | 651 | new Signature(info.type_index).getType(constant_pool).accept(this, null); |
jjg@451 | 652 | return null; |
jjg@451 | 653 | } catch (ConstantPoolException e) { |
jjg@451 | 654 | throw new ClassFileError(e); |
jjg@451 | 655 | } |
jjg@451 | 656 | } |
jjg@451 | 657 | |
jjg@451 | 658 | public Void visitString(CONSTANT_String_info info, Void p) { |
jjg@451 | 659 | return null; |
jjg@451 | 660 | } |
jjg@451 | 661 | |
jjg@451 | 662 | public Void visitUtf8(CONSTANT_Utf8_info info, Void p) { |
jjg@451 | 663 | return null; |
jjg@451 | 664 | } |
jjg@451 | 665 | |
jjg@451 | 666 | private Void visitRef(CPRefInfo info, Void p) { |
jjg@451 | 667 | try { |
jjg@451 | 668 | visitClass(info.getClassInfo(), p); |
jjg@451 | 669 | return null; |
jjg@451 | 670 | } catch (ConstantPoolException e) { |
jjg@451 | 671 | throw new ClassFileError(e); |
jjg@451 | 672 | } |
jjg@451 | 673 | } |
jjg@451 | 674 | |
jjg@451 | 675 | // Type.Visitor methods |
jjg@451 | 676 | |
jjg@451 | 677 | private void findDependencies(Type t) { |
jjg@451 | 678 | if (t != null) |
jjg@451 | 679 | t.accept(this, null); |
jjg@451 | 680 | } |
jjg@451 | 681 | |
jjg@451 | 682 | private void findDependencies(List<? extends Type> ts) { |
jjg@451 | 683 | if (ts != null) { |
jjg@451 | 684 | for (Type t: ts) |
jjg@451 | 685 | t.accept(this, null); |
jjg@451 | 686 | } |
jjg@451 | 687 | } |
jjg@451 | 688 | |
jjg@451 | 689 | public Void visitSimpleType(SimpleType type, Void p) { |
jjg@451 | 690 | return null; |
jjg@451 | 691 | } |
jjg@451 | 692 | |
jjg@451 | 693 | public Void visitArrayType(ArrayType type, Void p) { |
jjg@451 | 694 | findDependencies(type.elemType); |
jjg@451 | 695 | return null; |
jjg@451 | 696 | } |
jjg@451 | 697 | |
jjg@451 | 698 | public Void visitMethodType(MethodType type, Void p) { |
jjg@451 | 699 | findDependencies(type.paramTypes); |
jjg@451 | 700 | findDependencies(type.returnType); |
jjg@451 | 701 | findDependencies(type.throwsTypes); |
jjg@451 | 702 | return null; |
jjg@451 | 703 | } |
jjg@451 | 704 | |
jjg@451 | 705 | public Void visitClassSigType(ClassSigType type, Void p) { |
jjg@451 | 706 | findDependencies(type.superclassType); |
jjg@451 | 707 | findDependencies(type.superinterfaceTypes); |
jjg@451 | 708 | return null; |
jjg@451 | 709 | } |
jjg@451 | 710 | |
jjg@451 | 711 | public Void visitClassType(ClassType type, Void p) { |
jjg@451 | 712 | findDependencies(type.outerType); |
jjg@451 | 713 | addDependency(type.name); |
jjg@451 | 714 | findDependencies(type.typeArgs); |
jjg@451 | 715 | return null; |
jjg@451 | 716 | } |
jjg@451 | 717 | |
jjg@451 | 718 | public Void visitTypeParamType(TypeParamType type, Void p) { |
jjg@451 | 719 | findDependencies(type.classBound); |
jjg@451 | 720 | findDependencies(type.interfaceBounds); |
jjg@451 | 721 | return null; |
jjg@451 | 722 | } |
jjg@451 | 723 | |
jjg@451 | 724 | public Void visitWildcardType(WildcardType type, Void p) { |
jjg@451 | 725 | findDependencies(type.boundType); |
jjg@451 | 726 | return null; |
jjg@451 | 727 | } |
jjg@451 | 728 | } |
jjg@451 | 729 | } |
jjg@451 | 730 | } |