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   1 /*
   2  * (c) Copyright IBM Corp. 2000, 2001.
   3  * All Rights Reserved.
   4  */
   5 package net.sourceforge.phpdt.internal.corext.codemanipulation;
   6
   7 import net.sourceforge.phpdt.core.ICodeFormatter;
   8 import net.sourceforge.phpdt.core.ToolFactory;
   9
  10 import org.eclipse.jface.text.BadLocationException;
  11 import org.eclipse.jface.text.IDocument;
  12
  13 public class StubUtility {
  14
  15
  16 //      public static class GenStubSettings extends CodeGenerationSettings {
  17 //
  18 //              public boolean callSuper;
  19 //              public boolean methodOverwrites;
  20 //              public boolean noBody;
  21 //
  22 //              public GenStubSettings(CodeGenerationSettings settings) {
  23 //                      settings.setSettings(this);
  24 //              }
  25 //
  26 //              public GenStubSettings() {
  27 //              }
  28 //
  29 //      }
  30 //
  31 //
  32 //      /**
  33 //       * Generates a stub. Given a template method, a stub with the same signature
  34 //       * will be constructed so it can be added to a type.
  35 //       * @param destTypeName The name of the type to which the method will be added to (Used for the constructor)
  36 //       * @param method A method template (method belongs to different type than the parent)
  37 //       * @param options Options as defined above (<code>GenStubSettings</code>)
  38 //       * @param imports Imports required by the stub are added to the imports structure. If imports structure is <code>null</code>
  39 //       * all type names are qualified.
  40 //       * @throws JavaModelException
  41 //       */
  42 //      public static String genStub(String destTypeName, IMethod method, GenStubSettings settings, IImportsStructure imports) throws JavaModelException {
  43 //              IType declaringtype= method.getDeclaringType();
  44 //              StringBuffer buf= new StringBuffer();
  45 //              String methodName= method.getElementName();
  46 //              String[] paramTypes= method.getParameterTypes();
  47 //              String[] paramNames= method.getParameterNames();
  48 //              String[] excTypes= method.getExceptionTypes();
  49 //              String retTypeSig= method.getReturnType();
  50 //              int flags= method.getFlags();
  51 //              boolean isConstructor= method.isConstructor();
  52 //
  53 //              int lastParam= paramTypes.length -1;
  54 //
  55 //
  56 //              if (settings.createComments) {
  57 //                      if (isConstructor) {
  58 //                              String desc= "Constructor for " + destTypeName; //$NON-NLS-1$
  59 //                              genJavaDocStub(desc, paramNames, Signature.SIG_VOID, excTypes, buf);
  60 //                      } else {
  61 //                              // php doc
  62 //                              if (settings.methodOverwrites) {
  63 //                                      boolean isDeprecated= Flags.isDeprecated(flags);
  64 //                                      genJavaDocSeeTag(declaringtype, methodName, paramTypes, settings.createNonJavadocComments, isDeprecated, buf);
  65 //                              } else {
  66 //                                      // generate a default php doc comment
  67 //                                      String desc= "Method " + methodName; //$NON-NLS-1$
  68 //                                      genJavaDocStub(desc, paramNames, retTypeSig, excTypes, buf);
  69 //                              }
  70 //                      }
  71 //                      buf.append('\n');
  72 //              }
  73 //
  74 //              if (Flags.isPublic(flags) || isConstructor || (declaringtype.isInterface() && !settings.noBody)) {
  75 //                      buf.append("public "); //$NON-NLS-1$
  76 //              } else if (Flags.isProtected(flags)) {
  77 //                      buf.append("protected "); //$NON-NLS-1$
  78 //              } else if (Flags.isPrivate(flags)) {
  79 //                      buf.append("private "); //$NON-NLS-1$
  80 //              }
  81 //              if (Flags.isSynchronized(flags)) {
  82 //                      buf.append("synchronized "); //$NON-NLS-1$
  83 //              }
  84 //              if (Flags.isVolatile(flags)) {
  85 //                      buf.append("volatile "); //$NON-NLS-1$
  86 //              }
  87 //              if (Flags.isStrictfp(flags)) {
  88 //                      buf.append("strictfp "); //$NON-NLS-1$
  89 //              }
  90 //              if (Flags.isStatic(flags)) {
  91 //                      buf.append("static "); //$NON-NLS-1$
  92 //              }
  93 //
  94 //              if (isConstructor) {
  95 //                      buf.append(destTypeName);
  96 //              } else {
  97 //                      String retTypeFrm;
  98 //                      if (!isPrimitiveType(retTypeSig)) {
  99 //                              retTypeFrm= resolveAndAdd(retTypeSig, declaringtype, imports);
 100 //                      } else {
 101 //                              retTypeFrm= Signature.toString(retTypeSig);
 102 //                      }
 103 //                      buf.append(retTypeFrm);
 104 //                      buf.append(' ');
 105 //                      buf.append(methodName);
 106 //              }
 107 //              buf.append('(');
 108 //              for (int i= 0; i <= lastParam; i++) {
 109 //                      String paramTypeSig= paramTypes[i];
 110 //                      String paramTypeFrm;
 111 //
 112 //                      if (!isPrimitiveType(paramTypeSig)) {
 113 //                              paramTypeFrm= resolveAndAdd(paramTypeSig, declaringtype, imports);
 114 //                      } else {
 115 //                              paramTypeFrm= Signature.toString(paramTypeSig);
 116 //                      }
 117 //                      buf.append(paramTypeFrm);
 118 //                      buf.append(' ');
 119 //                      buf.append(paramNames[i]);
 120 //                      if (i < lastParam) {
 121 //                              buf.append(", "); //$NON-NLS-1$
 122 //                      }
 123 //              }
 124 //              buf.append(')');
 125 //
 126 //              int lastExc= excTypes.length - 1;
 127 //              if (lastExc >= 0) {
 128 //                      buf.append(" throws "); //$NON-NLS-1$
 129 //                      for (int i= 0; i <= lastExc; i++) {
 130 //                              String excTypeSig= excTypes[i];
 131 //                              String excTypeFrm= resolveAndAdd(excTypeSig, declaringtype, imports);
 132 //                              buf.append(excTypeFrm);
 133 //                              if (i < lastExc) {
 134 //                                      buf.append(", "); //$NON-NLS-1$
 135 //                              }
 136 //                      }
 137 //              }
 138 //              if (settings.noBody) {
 139 //                      buf.append(";\n\n"); //$NON-NLS-1$
 140 //              } else {
 141 //                      buf.append(" {\n\t"); //$NON-NLS-1$
 142 //                      if (!settings.callSuper) {
 143 //                              if (retTypeSig != null && !retTypeSig.equals(Signature.SIG_VOID)) {
 144 //                                      buf.append('\t');
 145 //                                      if (!isPrimitiveType(retTypeSig) || Signature.getArrayCount(retTypeSig) > 0) {
 146 //                                              buf.append("return null;\n\t"); //$NON-NLS-1$
 147 //                                      } else if (retTypeSig.equals(Signature.SIG_BOOLEAN)) {
 148 //                                              buf.append("return false;\n\t"); //$NON-NLS-1$
 149 //                                      } else {
 150 //                                              buf.append("return 0;\n\t"); //$NON-NLS-1$
 151 //                                      }
 152 //                              }
 153 //                      } else {
 154 //                              buf.append('\t');
 155 //                              if (!isConstructor) {
 156 //                                      if (!Signature.SIG_VOID.equals(retTypeSig)) {
 157 //                                              buf.append("return "); //$NON-NLS-1$
 158 //                                      }
 159 //                                      buf.append("super."); //$NON-NLS-1$
 160 //                                      buf.append(methodName);
 161 //                              } else {
 162 //                                      buf.append("super"); //$NON-NLS-1$
 163 //                              }
 164 //                              buf.append('(');
 165 //                              for (int i= 0; i <= lastParam; i++) {
 166 //                                      buf.append(paramNames[i]);
 167 //                                      if (i < lastParam) {
 168 //                                              buf.append(", "); //$NON-NLS-1$
 169 //                                      }
 170 //                              }
 171 //                              buf.append(");\n\t"); //$NON-NLS-1$
 172 //                      }
 173 //                      buf.append("}\n");                       //$NON-NLS-1$
 174 //              }
 175 //              return buf.toString();
 176 //      }
 177 //
 178 //      private static boolean isSet(int options, int flag) {
 179 //              return (options & flag) != 0;
 180 //      }
 181 //
 182 //      private static boolean isPrimitiveType(String typeName) {
 183 //              char first= Signature.getElementType(typeName).charAt(0);
 184 //              return (first != Signature.C_RESOLVED && first != Signature.C_UNRESOLVED);
 185 //      }
 186 //
 187 //      private static String resolveAndAdd(String refTypeSig, IType declaringType, IImportsStructure imports) throws JavaModelException {
 188 //              String resolvedTypeName= JavaModelUtil.getResolvedTypeName(refTypeSig, declaringType);
 189 //              if (resolvedTypeName != null) {
 190 //                      StringBuffer buf= new StringBuffer();
 191 //                      if (imports != null) {
 192 //                              buf.append(imports.addImport(resolvedTypeName));
 193 //                      } else {
 194 //                              buf.append(resolvedTypeName);
 195 //                      }
 196 //                      int arrayCount= Signature.getArrayCount(refTypeSig);
 197 //                      for (int i= 0; i < arrayCount; i++) {
 198 //                              buf.append("[]"); //$NON-NLS-1$
 199 //                      }
 200 //                      return buf.toString();
 201 //              }
 202 //              return Signature.toString(refTypeSig);
 203 //      }
 204 //
 205 //      /**
 206 //       * Generates a default JavaDoc comment stub for a method.
 207 //       */
 208 //      public static void genJavaDocStub(String descr, String[] paramNames, String retTypeSig, String[] excTypeSigs, StringBuffer buf) {
 209 //              buf.append("/**\n"); //$NON-NLS-1$
 210 //              buf.append(" * "); buf.append(descr); buf.append(".\n"); //$NON-NLS-2$ //$NON-NLS-1$
 211 //              for (int i= 0; i < paramNames.length; i++) {
 212 //                      buf.append(" * @param "); buf.append(paramNames[i]); buf.append('\n'); //$NON-NLS-1$
 213 //              }
 214 //              if (retTypeSig != null && !retTypeSig.equals(Signature.SIG_VOID)) {
 215 //                      String simpleName= Signature.getSimpleName(Signature.toString(retTypeSig));
 216 //                      buf.append(" * @return "); buf.append(simpleName); buf.append('\n'); //$NON-NLS-1$
 217 //              }
 218 //              if (excTypeSigs != null) {
 219 //                      for (int i= 0; i < excTypeSigs.length; i++) {
 220 //                              String simpleName= Signature.getSimpleName(Signature.toString(excTypeSigs[i]));
 221 //                              buf.append(" * @throws "); buf.append(simpleName); buf.append('\n'); //$NON-NLS-1$
 222 //                      }
 223 //              }
 224 //              buf.append(" */"); //$NON-NLS-1$
 225 //      }
 226 //
 227 //      /**
 228 //       * Generates a '@see' tag to the defined method.
 229 //       */
 230 //      public static void genJavaDocSeeTag(IType declaringType, String methodName, String[] paramTypes, boolean nonJavaDocComment, boolean isDeprecated, StringBuffer buf) throws JavaModelException {
 231 //              String[] fullParamNames= new String[paramTypes.length];
 232 //              for (int i= 0; i < paramTypes.length; i++) {
 233 //                      fullParamNames[i]= JavaModelUtil.getResolvedTypeName(paramTypes[i], declaringType);
 234 //              }
 235 //              String fullTypeName= JavaModelUtil.getFullyQualifiedName(declaringType);
 236 //
 237 //              genJavaDocSeeTag(fullTypeName, methodName, fullParamNames, nonJavaDocComment, isDeprecated, buf);
 238 //      }
 239 //
 240 //      /**
 241 //       * Generates a '@see' tag to the defined method.
 242 //       */
 243 //      public static void genJavaDocSeeTag(String fullyQualifiedTypeName, String methodName, String[] fullParamTypeNames, boolean nonJavaDocComment, boolean isDeprecated, StringBuffer buf) throws JavaModelException {
 244 //              // create a @see link
 245 //              buf.append("/*"); //$NON-NLS-1$
 246 //              if (!nonJavaDocComment) {
 247 //                      buf.append('*');
 248 //              } else {
 249 //                      buf.append(" (non-Javadoc)"); //$NON-NLS-1$
 250 //              }
 251 //              buf.append("\n * @see "); //$NON-NLS-1$
 252 //              buf.append(fullyQualifiedTypeName);
 253 //              buf.append('#');
 254 //              buf.append(methodName);
 255 //              buf.append('(');
 256 //              for (int i= 0; i < fullParamTypeNames.length; i++) {
 257 //                      if (i > 0) {
 258 //                              buf.append(", "); //$NON-NLS-1$
 259 //                      }
 260 //                      buf.append(fullParamTypeNames[i]);
 261 //              }
 262 //              buf.append(")\n"); //$NON-NLS-1$
 263 //              if (isDeprecated) {
 264 //                      buf.append(" * @deprecated\n"); //$NON-NLS-1$
 265 //              }
 266 //              buf.append(" */"); //$NON-NLS-1$
 267 //      }
 268 //
 269 //
 270 //
 271 //      /**
 272 //       * Finds a method in a list of methods.
 273 //       * @return The found method or null, if nothing found
 274 //       */
 275 //      private static IMethod findMethod(IMethod method, List allMethods) throws JavaModelException {
 276 //              String name= method.getElementName();
 277 //              String[] paramTypes= method.getParameterTypes();
 278 //              boolean isConstructor= method.isConstructor();
 279 //
 280 //              for (int i= allMethods.size() - 1; i >= 0; i--) {
 281 //                      IMethod curr= (IMethod) allMethods.get(i);
 282 //                      if (JavaModelUtil.isSameMethodSignature(name, paramTypes, isConstructor, curr)) {
 283 //                              return curr;
 284 //                      }
 285 //              }
 286 //              return null;
 287 //      }
 288
 289
 290         /**
 291          * Creates needed constructors for a type.
 292          * @param type The type to create constructors for
 293          * @param supertype The type's super type
 294          * @param settings Options for comment generation
 295          * @param imports Required imports are added to the import structure. Structure can be <code>null</code>, types are qualified then.
 296          * @return Returns the generated stubs or <code>null</code> if the creation has been canceled
 297          */
 298 //      public static String[] evalConstructors(IType type, IType supertype, CodeGenerationSettings settings, IImportsStructure imports) throws JavaModelException {
 299 //              IMethod[] superMethods= supertype.getMethods();
 300 //              String typeName= type.getElementName();
 301 //              IMethod[] methods= type.getMethods();
 302 //              GenStubSettings genStubSettings= new GenStubSettings(settings);
 303 //              genStubSettings.callSuper= true;
 304 //              ArrayList newMethods= new ArrayList(superMethods.length);
 305 //              for (int i= 0; i < superMethods.length; i++) {
 306 //                      IMethod curr= superMethods[i];
 307 //                      if (curr.isConstructor() && (JavaModelUtil.isVisible(curr, type.getPackageFragment()) || Flags.isProtected(curr.getFlags()))) {
 308 //                              if (JavaModelUtil.findMethod(typeName, curr.getParameterTypes(), true, methods) == null) {
 309 //                                      String newStub= genStub(typeName, superMethods[i], genStubSettings, imports);
 310 //                                      newMethods.add(newStub);
 311 //                              }
 312 //                      }
 313 //              }
 314 //              return (String[]) newMethods.toArray(new String[newMethods.size()]);
 315 //      }
 316 //
 317 //      /**
 318 //       * Searches for unimplemented methods of a type.
 319 //       * @param isSubType If set, the evaluation is for a subtype of the given type. If not set, the
 320 //       * evaluation is for the type itself.
 321 //       * @param settings Options for comment generation
 322 //       * @param selectionQuery If not null will select the methods to implement.
 323 //       * @param imports Required imports are added to the import structure. Structure can be <code>null</code>, types are qualified then.
 324 //       * @return Returns the generated stubs or <code>null</code> if the creation has been canceled
 325 //       */
 326 //      public static String[] evalUnimplementedMethods(IType type, ITypeHierarchy hierarchy, boolean isSubType, CodeGenerationSettings settings,
 327 //                              IOverrideMethodQuery selectionQuery, IImportsStructure imports) throws JavaModelException {
 328 //              List allMethods= new ArrayList();
 329 //              List toImplement= new ArrayList();
 330 //
 331 //              IMethod[] typeMethods= type.getMethods();
 332 //              for (int i= 0; i < typeMethods.length; i++) {
 333 //                      IMethod curr= typeMethods[i];
 334 //                      if (!curr.isConstructor() && !Flags.isStatic(curr.getFlags()) && !Flags.isPrivate(curr.getFlags())) {
 335 //                              allMethods.add(curr);
 336 //                      }
 337 //              }
 338 //
 339 //              IType[] superTypes= hierarchy.getAllSuperclasses(type);
 340 //              for (int i= 0; i < superTypes.length; i++) {
 341 //                      IMethod[] methods= superTypes[i].getMethods();
 342 //                      for (int k= 0; k < methods.length; k++) {
 343 //                              IMethod curr= methods[k];
 344 //                              if (!curr.isConstructor() && !Flags.isStatic(curr.getFlags()) && !Flags.isPrivate(curr.getFlags())) {
 345 //                                      if (findMethod(curr, allMethods) == null) {
 346 //                                              allMethods.add(curr);
 347 //                                      }
 348 //                              }
 349 //                      }
 350 //              }
 351 //
 352 //              // do not call super
 353 //              for (int i= 0; i < allMethods.size(); i++) {
 354 //                      IMethod curr= (IMethod) allMethods.get(i);
 355 //                      if ((Flags.isAbstract(curr.getFlags()) || curr.getDeclaringType().isInterface()) && (isSubType || !type.equals(curr.getDeclaringType()))) {
 356 //                              // implement all abstract methods
 357 //                              toImplement.add(curr);
 358 //                      }
 359 //              }
 360 //
 361 //              IType[] superInterfaces= hierarchy.getAllSuperInterfaces(type);
 362 //              for (int i= 0; i < superInterfaces.length; i++) {
 363 //                      IMethod[] methods= superInterfaces[i].getMethods();
 364 //                      for (int k= 0; k < methods.length; k++) {
 365 //                              IMethod curr= methods[k];
 366 //
 367 //                              // binary interfaces can contain static initializers (variable intializations)
 368 //                              // 1G4CKUS
 369 //                              if (!Flags.isStatic(curr.getFlags())) {
 370 //                                      IMethod impl= findMethod(curr, allMethods);
 371 //                                      if (impl == null || ((curr.getExceptionTypes().length < impl.getExceptionTypes().length) && !Flags.isFinal(impl.getFlags()))) {
 372 //                                              if (impl != null) {
 373 //                                                      allMethods.remove(impl);
 374 //                                              }
 375 //                                              // implement an interface method when it does not exist in the hierarchy
 376 //                                              // or when it throws less exceptions that the implemented
 377 //                                              toImplement.add(curr);
 378 //                                              allMethods.add(curr);
 379 //                                      }
 380 //                              }
 381 //                      }
 382 //              }
 383 //              IMethod[] toImplementArray= (IMethod[]) toImplement.toArray(new IMethod[toImplement.size()]);
 384 //              if (selectionQuery != null) {
 385 //                      if (!isSubType) {
 386 //                              allMethods.removeAll(Arrays.asList(typeMethods));
 387 //                      }
 388 //                      // remove finals
 389 //                      for (int i= allMethods.size() - 1; i >= 0; i--) {
 390 //                              IMethod curr= (IMethod) allMethods.get(i);
 391 //                              if (Flags.isFinal(curr.getFlags())) {
 392 //                                      allMethods.remove(i);
 393 //                              }
 394 //                      }
 395 //                      IMethod[] choice= (IMethod[]) allMethods.toArray(new IMethod[allMethods.size()]);
 396 //                      toImplementArray= selectionQuery.select(choice, toImplementArray, hierarchy);
 397 //                      if (toImplementArray == null) {
 398 //                              //cancel pressed
 399 //                              return null;
 400 //                      }
 401 //              }
 402 //              GenStubSettings genStubSettings= new GenStubSettings(settings);
 403 //              genStubSettings.methodOverwrites= true;
 404 //              String[] result= new String[toImplementArray.length];
 405 //              for (int i= 0; i < toImplementArray.length; i++) {
 406 //                      IMethod curr= toImplementArray[i];
 407 //                      IMethod overrides= JavaModelUtil.findMethodImplementationInHierarchy(hierarchy, type, curr.getElementName(), curr.getParameterTypes(), curr.isConstructor());
 408 //                      genStubSettings.callSuper= (overrides != null);
 409 //
 410 //                      IMethod desc= JavaModelUtil.findMethodDeclarationInHierarchy(hierarchy, type, curr.getElementName(), curr.getParameterTypes(), curr.isConstructor());
 411 //                      if (desc != null) {
 412 //                              curr= desc;
 413 //                      }
 414 //                      result[i]= genStub(type.getElementName(), curr, genStubSettings, imports);
 415 //              }
 416 //              return result;
 417 //      }
 418
 419         /**
 420          * Examines a string and returns the first line delimiter found.
 421          */
 422 //      public static String getLineDelimiterUsed(IJavaElement elem) throws JavaModelException {
 423 //              ICompilationUnit cu= (ICompilationUnit) elem.getAncestor(IJavaElement.COMPILATION_UNIT);
 424 //              if (cu != null && cu.exists()) {
 425 //                      IBuffer buf= cu.getBuffer();
 426 //                      int length= buf.getLength();
 427 //                      for (int i= 0; i < length; i++) {
 428 //                              char ch= buf.getChar(i);
 429 //                              if (ch == SWT.CR) {
 430 //                                      if (i + 1 < length) {
 431 //                                              if (buf.getChar(i + 1) == SWT.LF) {
 432 //                                                      return "\r\n"; //$NON-NLS-1$
 433 //                                              }
 434 //                                      }
 435 //                                      return "\r"; //$NON-NLS-1$
 436 //                              } else if (ch == SWT.LF) {
 437 //                                      return "\n"; //$NON-NLS-1$
 438 //                              }
 439 //                      }
 440 //              }
 441 //              return System.getProperty("line.separator", "\n"); //$NON-NLS-1$ //$NON-NLS-2$
 442 //      }
 443
 444         /**
 445          * Embodies the policy which line delimiter to use when inserting into
 446          * a document.
 447          */
 448         public static String getLineDelimiterFor(IDocument doc) {
 449                 // new for: 1GF5UU0: ITPJUI:WIN2000 - "Organize Imports" in php editor inserts lines in wrong format
 450                 String lineDelim= null;
 451                 try {
 452                         lineDelim= doc.getLineDelimiter(0);
 453                 } catch (BadLocationException e) {
 454                 }
 455                 if (lineDelim == null) {
 456                         String systemDelimiter= System.getProperty("line.separator", "\n"); //$NON-NLS-1$ //$NON-NLS-2$
 457                         String[] lineDelims= doc.getLegalLineDelimiters();
 458                         for (int i= 0; i < lineDelims.length; i++) {
 459                                 if (lineDelims[i].equals(systemDelimiter)) {
 460                                         lineDelim= systemDelimiter;
 461                                         break;
 462                                 }
 463                         }
 464                         if (lineDelim == null) {
 465                                 lineDelim= lineDelims.length > 0 ? lineDelims[0] : systemDelimiter;
 466                         }
 467                 }
 468                 return lineDelim;
 469         }
 470
 471
 472         /**
 473          * Evaluates the indention used by a Java element. (in tabulators)
 474          */
 475 //      public static int getIndentUsed(IJavaElement elem) throws JavaModelException {
 476 //              if (elem instanceof ISourceReference) {
 477 //                      ICompilationUnit cu= (ICompilationUnit) elem.getAncestor(IJavaElement.COMPILATION_UNIT);
 478 //                      if (cu != null) {
 479 //                              IBuffer buf= cu.getBuffer();
 480 //                              int offset= ((ISourceReference)elem).getSourceRange().getOffset();
 481 //                              int i= offset;
 482 //                              // find beginning of line
 483 //                              while (i > 0 && !Strings.isLineDelimiterChar(buf.getChar(i - 1)) ){
 484 //                                      i--;
 485 //                              }
 486 //                              return Strings.computeIndent(buf.getText(i, offset - i), CodeFormatterUtil.getTabWidth());
 487 //                      }
 488 //              }
 489 //              return 0;
 490 //      }
 491
 492         public static String codeFormat(String sourceString, int initialIndentationLevel, String lineDelim) {
 493                 ICodeFormatter formatter= ToolFactory.createDefaultCodeFormatter(null);
 494                 return formatter.format(sourceString, initialIndentationLevel, null, lineDelim);
 495         }
 496
 497         /**
 498          * Returns the element after the give element.
 499          */
 500 //      public static IJavaElement findNextSibling(IJavaElement member) throws JavaModelException {
 501 //              IJavaElement parent= member.getParent();
 502 //              if (parent instanceof IParent) {
 503 //                      IJavaElement[] elements= ((IParent)parent).getChildren();
 504 //                      for (int i= elements.length - 2; i >= 0 ; i--) {
 505 //                              if (member.equals(elements[i])) {
 506 //                                      return elements[i+1];
 507 //                              }
 508 //                      }
 509 //              }
 510 //              return null;
 511 //      }
 512 //
 513 //      public static String getTodoTaskTag(IJavaProject project) {
 514 //              String markers= null;
 515 //              if (project == null) {
 516 //                      markers= JavaCore.getOption(JavaCore.COMPILER_TASK_TAGS);
 517 //              } else {
 518 //                      markers= project.getOption(JavaCore.COMPILER_TASK_TAGS, true);
 519 //              }
 520 //
 521 //              if (markers != null && markers.length() > 0) {
 522 //                      int idx= markers.indexOf(',');
 523 //                      if (idx == -1) {
 524 //                              return markers;
 525 //                      } else {
 526 //                              return markers.substring(0, idx);
 527 //                      }
 528 //              }
 529 //              return null;
 530 //      }
 531
 532 }