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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 java.util.ArrayList;
   8 import java.util.Arrays;
   9 import java.util.Comparator;
  10 import java.util.List;
  11 import java.util.StringTokenizer;
  12 import java.util.jar.Attributes.Name;
  13
  14 import net.sourceforge.phpdt.core.Flags;
  15 import net.sourceforge.phpdt.core.IBuffer;
  16 import net.sourceforge.phpdt.core.ICodeFormatter;
  17 import net.sourceforge.phpdt.core.ICompilationUnit;
  18 import net.sourceforge.phpdt.core.IJavaElement;
  19 import net.sourceforge.phpdt.core.IJavaProject;
  20 import net.sourceforge.phpdt.core.IMethod;
  21 import net.sourceforge.phpdt.core.IPackageFragment;
  22 import net.sourceforge.phpdt.core.IType;
  23 import net.sourceforge.phpdt.core.JavaCore;
  24 import net.sourceforge.phpdt.core.JavaModelException;
  25 import net.sourceforge.phpdt.core.Signature;
  26 import net.sourceforge.phpdt.core.ToolFactory;
  27 import net.sourceforge.phpdt.internal.corext.template.php.CodeTemplateContext;
  28 import net.sourceforge.phpdt.internal.corext.template.php.CodeTemplateContextType;
  29 import net.sourceforge.phpdt.internal.corext.util.JavaModelUtil;
  30 import net.sourceforge.phpdt.internal.corext.util.Strings;
  31 import net.sourceforge.phpdt.internal.ui.PHPUIStatus;
  32 import net.sourceforge.phpeclipse.PHPeclipsePlugin;
  33
  34 import org.eclipse.core.runtime.CoreException;
  35 import org.eclipse.core.runtime.IStatus;
  36 import org.eclipse.core.runtime.Status;
  37 import org.eclipse.jface.text.BadLocationException;
  38 import org.eclipse.jface.text.Document;
  39 import org.eclipse.jface.text.IDocument;
  40 import org.eclipse.jface.text.IRegion;
  41 import org.eclipse.jface.text.templates.Template;
  42 import org.eclipse.jface.text.templates.TemplateBuffer;
  43 import org.eclipse.jface.text.templates.TemplateException;
  44 import org.eclipse.jface.text.templates.TemplateVariable;
  45 import org.eclipse.swt.SWT;
  46
  47 public class StubUtility {
  48
  49
  50         public static class GenStubSettings extends CodeGenerationSettings {
  51
  52                         public boolean callSuper;
  53                         public boolean methodOverwrites;
  54                         public boolean noBody;
  55                         public int methodModifiers;
  56
  57                         public GenStubSettings(CodeGenerationSettings settings) {
  58                                 settings.setSettings(this);
  59                                 methodModifiers= -1;
  60                         }
  61
  62                 }
  63
  64                 private static final String[] EMPTY= new String[0];
  65
  66                 /**
  67                  * Generates a method stub including the method comment. Given a template
  68                  * method, a stub with the same signature will be constructed so it can be
  69                  * added to a type. The method body will be empty or contain a return or
  70                  * super call.
  71                  * @param destTypeName The name of the type to which the method will be
  72                  * added to
  73                  * @param method A method template (method belongs to different type than the parent)
  74                  * @param definingType The type that defines the method.
  75                  * @param settings Options as defined above (<code>GenStubSettings</code>)
  76                  * @param imports Imports required by the stub are added to the imports structure. If imports structure is <code>null</code>
  77                  * all type names are qualified.
  78                  * @throws JavaModelException
  79                  */
  80                 public static String genStub(ICompilationUnit cu, String destTypeName, IMethod method, IType definingType, GenStubSettings settings) throws CoreException {
  81                   //IImportsStructure imports) throws CoreException {
  82                         String methName= method.getElementName();
  83                         String[] paramNames= suggestArgumentNames(method.getJavaProject(), method.getParameterNames());
  84                         String returnType= method.isConstructor() ? null : method.getReturnType();
  85                         String lineDelimiter= String.valueOf('\n'); // reformatting required
  86
  87
  88                         StringBuffer buf= new StringBuffer();
  89                         // add method comment
  90                         if (settings.createComments && cu != null) {
  91                                 IMethod overridden= null;
  92                                 if (settings.methodOverwrites && returnType != null) {
  93                                         overridden= JavaModelUtil.findMethod(methName, method.getParameterTypes(), false, definingType.getMethods());
  94                                 }
  95                                 String comment= getMethodComment(cu, destTypeName, methName, paramNames, method.getExceptionTypes(), returnType, overridden, lineDelimiter);
  96                                 if (comment != null) {
  97                                         buf.append(comment);
  98                                 } else {
  99                                         buf.append("/**").append(lineDelimiter); //$NON-NLS-1$
 100                                         buf.append(" *").append(lineDelimiter); //$NON-NLS-1$
 101                                         buf.append(" */").append(lineDelimiter); //$NON-NLS-1$
 102                                 }
 103                                 buf.append(lineDelimiter);
 104                         }
 105                         // add method declaration
 106                         String bodyContent= null;
 107                         if (!settings.noBody) {
 108                                 String bodyStatement= getDefaultMethodBodyStatement(methName, paramNames, returnType, settings.callSuper);
 109                                 bodyContent= getMethodBodyContent(returnType == null, method.getJavaProject(), destTypeName, methName, bodyStatement, lineDelimiter);
 110                                 if (bodyContent == null) {
 111                                         bodyContent= ""; //$NON-NLS-1$
 112                                 }
 113                         }
 114                         int flags= settings.methodModifiers;
 115                         if (flags == -1) {
 116                                 flags= method.getFlags();
 117                         }
 118
 119                         genMethodDeclaration(destTypeName, method, flags, bodyContent, buf); // imports, buf);
 120                         return buf.toString();
 121                 }
 122
 123                 /**
 124                  * Generates a method stub not including the method comment. Given a
 125                  * template method and the body content, a stub with the same signature will
 126                  * be constructed so it can be added to a type.
 127                  * @param destTypeName The name of the type to which the method will be
 128                  * added to
 129                  * @param method A method template (method belongs to different type than the parent)
 130                  * @param bodyContent Content of the body
 131                  * @param imports Imports required by the stub are added to the imports
 132                  * structure. If imports structure is <code>null</code> all type names are
 133                  * qualified.
 134                  * @param buf The buffer to append the gerenated code.
 135                  * @throws JavaModelException
 136                  */
 137                 public static void genMethodDeclaration(String destTypeName, IMethod method, String bodyContent, StringBuffer buf) throws CoreException { // IImportsStructure imports, StringBuffer buf) throws CoreException {
 138                         genMethodDeclaration(destTypeName, method, method.getFlags(), bodyContent, buf);
 139                 }
 140
 141                 /**
 142                  * Generates a method stub not including the method comment. Given a
 143                  * template method and the body content, a stub with the same signature will
 144                  * be constructed so it can be added to a type.
 145                  * @param destTypeName The name of the type to which the method will be
 146                  * added to
 147                  * @param method A method template (method belongs to different type than the parent)
 148                  * @param bodyContent Content of the body
 149                  * @param imports Imports required by the stub are added to the imports
 150                  * structure. If imports structure is <code>null</code> all type names are
 151                  * qualified.
 152                  * @param buf The buffer to append the gerenated code.
 153                  * @throws JavaModelException
 154                  */
 155                 public static void genMethodDeclaration(String destTypeName, IMethod method, int flags, String bodyContent, StringBuffer buf) throws CoreException {
 156                   //IImportsStructure imports, StringBuffer buf) throws CoreException {
 157                         IType parentType= method.getDeclaringType();
 158                         String methodName= method.getElementName();
 159                         String[] paramTypes= method.getParameterTypes();
 160                         String[] paramNames= suggestArgumentNames(parentType.getJavaProject(), method.getParameterNames());
 161
 162                         String[] excTypes= method.getExceptionTypes();
 163
 164                         boolean isConstructor= method.isConstructor();
 165                         String retTypeSig= isConstructor ? null : method.getReturnType();
 166
 167                         int lastParam= paramTypes.length -1;
 168
 169                         if (Flags.isPublic(flags) || (parentType.isInterface() && bodyContent != null)) {
 170                                 buf.append("public "); //$NON-NLS-1$
 171                         } else if (Flags.isProtected(flags)) {
 172                                 buf.append("protected "); //$NON-NLS-1$
 173                         } else if (Flags.isPrivate(flags)) {
 174                                 buf.append("private "); //$NON-NLS-1$
 175                         }
 176 //                      if (Flags.isSynchronized(flags)) {
 177 //                              buf.append("synchronized "); //$NON-NLS-1$
 178 //                      }
 179 //                      if (Flags.isVolatile(flags)) {
 180 //                              buf.append("volatile "); //$NON-NLS-1$
 181 //                      }
 182 //                      if (Flags.isStrictfp(flags)) {
 183 //                              buf.append("strictfp "); //$NON-NLS-1$
 184 //                      }
 185                         if (Flags.isStatic(flags)) {
 186                                 buf.append("static "); //$NON-NLS-1$
 187                         }
 188
 189                         if (isConstructor) {
 190                                 buf.append(destTypeName);
 191                         } else {
 192                                 String retTypeFrm;
 193                                 if (!isPrimitiveType(retTypeSig)) {
 194                                         retTypeFrm= resolveAndAdd(retTypeSig, parentType);
 195                                 } else {
 196                                         retTypeFrm= Signature.toString(retTypeSig);
 197                                 }
 198                                 buf.append(retTypeFrm);
 199                                 buf.append(' ');
 200                                 buf.append(methodName);
 201                         }
 202                         buf.append('(');
 203                         for (int i= 0; i <= lastParam; i++) {
 204                                 String paramTypeSig= paramTypes[i];
 205                                 String paramTypeFrm;
 206
 207                                 if (!isPrimitiveType(paramTypeSig)) {
 208                                         paramTypeFrm= resolveAndAdd(paramTypeSig, parentType);
 209                                 } else {
 210                                         paramTypeFrm= Signature.toString(paramTypeSig);
 211                                 }
 212                                 buf.append(paramTypeFrm);
 213                                 buf.append(' ');
 214                                 buf.append(paramNames[i]);
 215                                 if (i < lastParam) {
 216                                         buf.append(", "); //$NON-NLS-1$
 217                                 }
 218                         }
 219                         buf.append(')');
 220
 221                         int lastExc= excTypes.length - 1;
 222                         if (lastExc >= 0) {
 223                                 buf.append(" throws "); //$NON-NLS-1$
 224                                 for (int i= 0; i <= lastExc; i++) {
 225                                         String excTypeSig= excTypes[i];
 226                                         String excTypeFrm= resolveAndAdd(excTypeSig, parentType);
 227                                         buf.append(excTypeFrm);
 228                                         if (i < lastExc) {
 229                                                 buf.append(", "); //$NON-NLS-1$
 230                                         }
 231                                 }
 232                         }
 233                         if (bodyContent == null) {
 234                                 buf.append(";\n\n"); //$NON-NLS-1$
 235                         } else {
 236                                 buf.append(" {\n\t"); //$NON-NLS-1$
 237                                 if ((bodyContent != null) && (bodyContent.length() > 0)) {
 238                                         buf.append(bodyContent);
 239                                         buf.append('\n');
 240                                 }
 241                                 buf.append("}\n");                       //$NON-NLS-1$
 242                         }
 243                 }
 244
 245                 public static String getDefaultMethodBodyStatement(String methodName, String[] paramNames, String retTypeSig, boolean callSuper) {
 246                         StringBuffer buf= new StringBuffer();
 247                         if (callSuper) {
 248                                 if (retTypeSig != null) {
 249                                         if (!Signature.SIG_VOID.equals(retTypeSig)) {
 250                                                 buf.append("return "); //$NON-NLS-1$
 251                                         }
 252                                         buf.append("super."); //$NON-NLS-1$
 253                                         buf.append(methodName);
 254                                 } else {
 255                                         buf.append("super"); //$NON-NLS-1$
 256                                 }
 257                                 buf.append('(');
 258                                 for (int i= 0; i < paramNames.length; i++) {
 259                                         if (i > 0) {
 260                                                 buf.append(", "); //$NON-NLS-1$
 261                                         }
 262                                         buf.append(paramNames[i]);
 263                                 }
 264                                 buf.append(");"); //$NON-NLS-1$
 265                         } else {
 266                                 if (retTypeSig != null && !retTypeSig.equals(Signature.SIG_VOID)) {
 267                                         if (!isPrimitiveType(retTypeSig) || Signature.getArrayCount(retTypeSig) > 0) {
 268                                                 buf.append("return null;"); //$NON-NLS-1$
 269                                         } else if (retTypeSig.equals(Signature.SIG_BOOLEAN)) {
 270                                                 buf.append("return false;"); //$NON-NLS-1$
 271                                         } else {
 272                                                 buf.append("return 0;"); //$NON-NLS-1$
 273                                         }
 274                                 }
 275                         }
 276                         return buf.toString();
 277                 }
 278
 279                 public static String getMethodBodyContent(boolean isConstructor, IJavaProject project, String destTypeName, String methodName, String bodyStatement, String lineDelimiter) throws CoreException {
 280                         String templateName= isConstructor ? CodeTemplateContextType.CONSTRUCTORSTUB : CodeTemplateContextType.METHODSTUB;
 281                         Template template= PHPeclipsePlugin.getDefault().getCodeTemplateStore().findTemplate(templateName);
 282                         if (template == null) {
 283                                 return bodyStatement;
 284                         }
 285                         CodeTemplateContext context= new CodeTemplateContext(template.getContextTypeId(), project, lineDelimiter);
 286                         context.setVariable(CodeTemplateContextType.ENCLOSING_METHOD, methodName);
 287                         context.setVariable(CodeTemplateContextType.ENCLOSING_TYPE, destTypeName);
 288                         context.setVariable(CodeTemplateContextType.BODY_STATEMENT, bodyStatement);
 289                         String str= evaluateTemplate(context, template);
 290                         if (str == null && !Strings.containsOnlyWhitespaces(bodyStatement)) {
 291                                 return bodyStatement;
 292                         }
 293                         return str;
 294                 }
 295
 296                 public static String getGetterMethodBodyContent(IJavaProject project, String destTypeName, String methodName, String fieldName, String lineDelimiter) throws CoreException {
 297                         String templateName= CodeTemplateContextType.GETTERSTUB;
 298                         Template template= PHPeclipsePlugin.getDefault().getCodeTemplateStore().findTemplate(templateName);
 299                         if (template == null) {
 300                                 return null;
 301                         }
 302                         CodeTemplateContext context= new CodeTemplateContext(template.getContextTypeId(), project, lineDelimiter);
 303                         context.setVariable(CodeTemplateContextType.ENCLOSING_METHOD, methodName);
 304                         context.setVariable(CodeTemplateContextType.ENCLOSING_TYPE, destTypeName);
 305                         context.setVariable(CodeTemplateContextType.FIELD, fieldName);
 306
 307                         return evaluateTemplate(context, template);
 308                 }
 309
 310                 public static String getSetterMethodBodyContent(IJavaProject project, String destTypeName, String methodName, String fieldName, String paramName, String lineDelimiter) throws CoreException {
 311                         String templateName= CodeTemplateContextType.SETTERSTUB;
 312                         Template template= PHPeclipsePlugin.getDefault().getCodeTemplateStore().findTemplate(templateName);
 313                         if (template == null) {
 314                                 return null;
 315                         }
 316                         CodeTemplateContext context= new CodeTemplateContext(template.getContextTypeId(), project, lineDelimiter);
 317                         context.setVariable(CodeTemplateContextType.ENCLOSING_METHOD, methodName);
 318                         context.setVariable(CodeTemplateContextType.ENCLOSING_TYPE, destTypeName);
 319                         context.setVariable(CodeTemplateContextType.FIELD, fieldName);
 320                         context.setVariable(CodeTemplateContextType.FIELD_TYPE, fieldName);
 321                         context.setVariable(CodeTemplateContextType.PARAM, paramName);
 322
 323                         return evaluateTemplate(context, template);
 324                 }
 325
 326                 public static String getCatchBodyContent(ICompilationUnit cu, String exceptionType, String variableName, String lineDelimiter) throws CoreException {
 327                         Template template= PHPeclipsePlugin.getDefault().getCodeTemplateStore().findTemplate(CodeTemplateContextType.CATCHBLOCK);
 328                         if (template == null) {
 329                                 return null;
 330                         }
 331
 332                         CodeTemplateContext context= new CodeTemplateContext(template.getContextTypeId(), cu.getJavaProject(), lineDelimiter);
 333                         context.setVariable(CodeTemplateContextType.EXCEPTION_TYPE, exceptionType);
 334                         context.setVariable(CodeTemplateContextType.EXCEPTION_VAR, variableName); //$NON-NLS-1$
 335                         return evaluateTemplate(context, template);
 336                 }
 337
 338                 /**
 339                  * @see net.sourceforge.phpdt.ui.CodeGeneration#getTypeComment(ICompilationUnit, String, String)
 340                  */
 341                 public static String getCompilationUnitContent(ICompilationUnit cu, String typeComment, String typeContent, String lineDelimiter) throws CoreException {
 342                         IPackageFragment pack= (IPackageFragment) cu.getParent();
 343                         String packDecl= pack.isDefaultPackage() ? "" : "package " + pack.getElementName() + ';'; //$NON-NLS-1$ //$NON-NLS-2$
 344
 345                         Template template= PHPeclipsePlugin.getDefault().getCodeTemplateStore().findTemplate(CodeTemplateContextType.NEWTYPE);
 346                         if (template == null) {
 347                                 return null;
 348                         }
 349
 350                         IJavaProject project= cu.getJavaProject();
 351                         CodeTemplateContext context= new CodeTemplateContext(template.getContextTypeId(), project, lineDelimiter);
 352                         context.setCompilationUnitVariables(cu);
 353                         context.setVariable(CodeTemplateContextType.PACKAGE_DECLARATION, packDecl);
 354                         context.setVariable(CodeTemplateContextType.TYPE_COMMENT, typeComment != null ? typeComment : ""); //$NON-NLS-1$
 355                         context.setVariable(CodeTemplateContextType.TYPE_DECLARATION, typeContent);
 356                         context.setVariable(CodeTemplateContextType.TYPENAME, Signature.getQualifier(cu.getElementName()));
 357                         return evaluateTemplate(context, template);
 358                 }
 359
 360                 /*
 361                  * @see net.sourceforge.phpdt.ui.CodeGeneration#getTypeComment(ICompilationUnit, String, String)
 362                  */
 363                 public static String getTypeComment(ICompilationUnit cu, String typeQualifiedName, String lineDelim) throws CoreException {
 364                         Template template= PHPeclipsePlugin.getDefault().getCodeTemplateStore().findTemplate(CodeTemplateContextType.TYPECOMMENT);
 365                         if (template == null) {
 366                                 return null;
 367                         }
 368                         CodeTemplateContext context= new CodeTemplateContext(template.getContextTypeId(), cu.getJavaProject(), lineDelim);
 369                         context.setCompilationUnitVariables(cu);
 370                         context.setVariable(CodeTemplateContextType.ENCLOSING_TYPE, Signature.getQualifier(typeQualifiedName));
 371                         context.setVariable(CodeTemplateContextType.TYPENAME, Signature.getSimpleName(typeQualifiedName));
 372                         return evaluateTemplate(context, template);
 373                 }
 374
 375 //              private static String[] getParameterTypesQualifiedNames(IMethodBinding binding) {
 376 //                      ITypeBinding[] typeBindings= binding.getParameterTypes();
 377 //                      String[] result= new String[typeBindings.length];
 378 //                      for (int i= 0; i < result.length; i++) {
 379 //                              result[i]= typeBindings[i].getQualifiedName();
 380 //                      }
 381 //                      return result;
 382 //              }
 383
 384                 private static String getSeeTag(String declaringClassQualifiedName, String methodName, String[] parameterTypesQualifiedNames) {
 385                         StringBuffer buf= new StringBuffer();
 386                         buf.append("@see "); //$NON-NLS-1$
 387                         buf.append(declaringClassQualifiedName);
 388                         buf.append('#');
 389                         buf.append(methodName);
 390                         buf.append('(');
 391                         for (int i= 0; i < parameterTypesQualifiedNames.length; i++) {
 392                                 if (i > 0) {
 393                                         buf.append(", "); //$NON-NLS-1$
 394                                 }
 395                                 buf.append(parameterTypesQualifiedNames[i]);
 396                         }
 397                         buf.append(')');
 398                         return buf.toString();
 399                 }
 400
 401                 private static String getSeeTag(IMethod overridden) throws JavaModelException {
 402                         IType declaringType= overridden.getDeclaringType();
 403                         StringBuffer buf= new StringBuffer();
 404                         buf.append("@see "); //$NON-NLS-1$
 405                         buf.append(declaringType.getFullyQualifiedName('.'));
 406                         buf.append('#');
 407                         buf.append(overridden.getElementName());
 408                         buf.append('(');
 409                         String[] paramTypes= overridden.getParameterTypes();
 410                         for (int i= 0; i < paramTypes.length; i++) {
 411                                 if (i > 0) {
 412                                         buf.append(", "); //$NON-NLS-1$
 413                                 }
 414                                 String curr= paramTypes[i];
 415                                 buf.append(JavaModelUtil.getResolvedTypeName(curr, declaringType));
 416                                 int arrayCount= Signature.getArrayCount(curr);
 417                                 while (arrayCount > 0) {
 418                                         buf.append("[]"); //$NON-NLS-1$
 419                                         arrayCount--;
 420                                 }
 421                         }
 422                         buf.append(')');
 423                         return buf.toString();
 424                 }
 425
 426                 /**
 427                  * @see net.sourceforge.phpdt.ui.CodeGeneration#getMethodComment(IMethod,IMethod,String)
 428                  */
 429                 public static String getMethodComment(IMethod method, IMethod overridden, String lineDelimiter) throws CoreException {
 430                         String retType= method.isConstructor() ? null : method.getReturnType();
 431                         String[] paramNames= method.getParameterNames();
 432
 433                         return getMethodComment(method.getCompilationUnit(), method.getDeclaringType().getElementName(),
 434                                 method.getElementName(), paramNames, method.getExceptionTypes(), retType, overridden, lineDelimiter);
 435                 }
 436
 437                 /**
 438                  * @see net.sourceforge.phpdt.ui.CodeGeneration#getMethodComment(ICompilationUnit, String, String, String[], String[], String, IMethod, String)
 439                  */
 440                 public static String getMethodComment(ICompilationUnit cu, String typeName, String methodName, String[] paramNames, String[] excTypeSig, String retTypeSig, IMethod overridden, String lineDelimiter) throws CoreException {
 441                         String templateName= CodeTemplateContextType.METHODCOMMENT;
 442                         if (retTypeSig == null) {
 443                                 templateName= CodeTemplateContextType.CONSTRUCTORCOMMENT;
 444                         } else if (overridden != null) {
 445                                 templateName= CodeTemplateContextType.OVERRIDECOMMENT;
 446                         }
 447                         Template template= PHPeclipsePlugin.getDefault().getCodeTemplateStore().findTemplate(templateName);
 448                         if (template == null) {
 449                                 return null;
 450                         }
 451                         CodeTemplateContext context= new CodeTemplateContext(template.getContextTypeId(), cu.getJavaProject(), lineDelimiter);
 452                         context.setCompilationUnitVariables(cu);
 453                         context.setVariable(CodeTemplateContextType.ENCLOSING_TYPE, typeName);
 454                         context.setVariable(CodeTemplateContextType.ENCLOSING_METHOD, methodName);
 455
 456                         if (retTypeSig != null) {
 457                                 context.setVariable(CodeTemplateContextType.RETURN_TYPE, Signature.toString(retTypeSig));
 458                         }
 459                         if (overridden != null) {
 460                                 context.setVariable(CodeTemplateContextType.SEE_TAG, getSeeTag(overridden));
 461                         }
 462                         TemplateBuffer buffer;
 463                         try {
 464                                 buffer= context.evaluate(template);
 465                         } catch (BadLocationException e) {
 466                                 throw new CoreException(Status.CANCEL_STATUS);
 467                         } catch (TemplateException e) {
 468                                 throw new CoreException(Status.CANCEL_STATUS);
 469                         }
 470                         if (buffer == null) {
 471                                 return null;
 472                         }
 473
 474                         String str= buffer.getString();
 475                         if (Strings.containsOnlyWhitespaces(str)) {
 476                                 return null;
 477                         }
 478                         TemplateVariable position= findTagVariable(buffer); // look if Javadoc tags have to be added
 479                         if (position == null) {
 480                                 return str;
 481                         }
 482
 483                         IDocument textBuffer= new Document(str);
 484                         String[] exceptionNames= new String[excTypeSig.length];
 485                         for (int i= 0; i < excTypeSig.length; i++) {
 486                                 exceptionNames[i]= Signature.toString(excTypeSig[i]);
 487                         }
 488                         String returnType= retTypeSig != null ? Signature.toString(retTypeSig) : null;
 489                         int[] tagOffsets= position.getOffsets();
 490                         for (int i= tagOffsets.length - 1; i >= 0; i--) { // from last to first
 491                                 try {
 492                                         insertTag(textBuffer, tagOffsets[i], position.getLength(), paramNames, exceptionNames, returnType, false, lineDelimiter);
 493                                 } catch (BadLocationException e) {
 494                                         throw new CoreException(PHPUIStatus.createError(IStatus.ERROR, e));
 495                                 }
 496                         }
 497                         return textBuffer.get();
 498                 }
 499
 500                 public static String getFieldComment(ICompilationUnit cu, String typeName, String fieldName, String lineDelimiter) throws CoreException {
 501                         Template template= PHPeclipsePlugin.getDefault().getCodeTemplateStore().findTemplate(CodeTemplateContextType.FIELDCOMMENT);
 502                         if (template == null) {
 503                                 return null;
 504                         }
 505                         CodeTemplateContext context= new CodeTemplateContext(template.getContextTypeId(), cu.getJavaProject(), lineDelimiter);
 506                         context.setCompilationUnitVariables(cu);
 507                         context.setVariable(CodeTemplateContextType.FIELD_TYPE, typeName);
 508                         context.setVariable(CodeTemplateContextType.FIELD, fieldName);
 509
 510                         return evaluateTemplate(context, template);
 511                 }
 512
 513
 514                 /**
 515                  * @see net.sourceforge.phpdt.ui.CodeGeneration#getSetterComment(ICompilationUnit, String, String, String, String, String, String, String)
 516                  */
 517                 public static String getSetterComment(ICompilationUnit cu, String typeName, String methodName, String fieldName, String fieldType, String paramName, String bareFieldName, String lineDelimiter) throws CoreException {
 518                         String templateName= CodeTemplateContextType.SETTERCOMMENT;
 519                         Template template= PHPeclipsePlugin.getDefault().getCodeTemplateStore().findTemplate(templateName);
 520                         if (template == null) {
 521                                 return null;
 522                         }
 523
 524                         CodeTemplateContext context= new CodeTemplateContext(template.getContextTypeId(), cu.getJavaProject(), lineDelimiter);
 525                         context.setCompilationUnitVariables(cu);
 526                         context.setVariable(CodeTemplateContextType.ENCLOSING_TYPE, typeName);
 527                         context.setVariable(CodeTemplateContextType.ENCLOSING_METHOD, methodName);
 528                         context.setVariable(CodeTemplateContextType.FIELD, fieldName);
 529                         context.setVariable(CodeTemplateContextType.FIELD_TYPE, fieldType);
 530                         context.setVariable(CodeTemplateContextType.BARE_FIELD_NAME, bareFieldName);
 531                         context.setVariable(CodeTemplateContextType.PARAM, paramName);
 532
 533                         return evaluateTemplate(context, template);
 534                 }
 535
 536                 /**
 537                  * @see net.sourceforge.phpdt.ui.CodeGeneration#getGetterComment(ICompilationUnit, String, String, String, String, String, String)
 538                  */
 539                 public static String getGetterComment(ICompilationUnit cu, String typeName, String methodName, String fieldName, String fieldType, String bareFieldName, String lineDelimiter) throws CoreException {
 540                         String templateName= CodeTemplateContextType.GETTERCOMMENT;
 541                         Template template= PHPeclipsePlugin.getDefault().getCodeTemplateStore().findTemplate(templateName);
 542                         if (template == null) {
 543                                 return null;
 544                         }
 545                         CodeTemplateContext context= new CodeTemplateContext(template.getContextTypeId(), cu.getJavaProject(), lineDelimiter);
 546                         context.setCompilationUnitVariables(cu);
 547                         context.setVariable(CodeTemplateContextType.ENCLOSING_TYPE, typeName);
 548                         context.setVariable(CodeTemplateContextType.ENCLOSING_METHOD, methodName);
 549                         context.setVariable(CodeTemplateContextType.FIELD, fieldName);
 550                         context.setVariable(CodeTemplateContextType.FIELD_TYPE, fieldType);
 551                         context.setVariable(CodeTemplateContextType.BARE_FIELD_NAME, bareFieldName);
 552
 553                         return evaluateTemplate(context, template);
 554                 }
 555
 556                 public static String evaluateTemplate(CodeTemplateContext context, Template template) throws CoreException {
 557                         TemplateBuffer buffer;
 558                         try {
 559                                 buffer= context.evaluate(template);
 560                         } catch (BadLocationException e) {
 561                                 throw new CoreException(Status.CANCEL_STATUS);
 562                         } catch (TemplateException e) {
 563                                 throw new CoreException(Status.CANCEL_STATUS);
 564                         }
 565                         if (buffer == null)
 566                                 return null;
 567                         String str= buffer.getString();
 568                         if (Strings.containsOnlyWhitespaces(str)) {
 569                                 return null;
 570                         }
 571                         return str;
 572                 }
 573
 574                 /**
 575                  * @see net.sourceforge.phpdt.ui.CodeGeneration#getMethodComment(ICompilationUnit, String, MethodDeclaration, IMethodBinding, String)
 576                  */
 577 //              public static String getMethodComment(ICompilationUnit cu, String typeName, IMethodBinding overridden, String lineDelimiter) throws CoreException {
 578 //                      if (overridden != null) {
 579 //                              String declaringClassQualifiedName= overridden.getDeclaringClass().getQualifiedName();
 580 //                              String[] parameterTypesQualifiedNames= getParameterTypesQualifiedNames(overridden);
 581 //                              return getMethodComment(cu, typeName, decl, true, overridden.isDeprecated(), declaringClassQualifiedName, parameterTypesQualifiedNames, lineDelimiter);
 582 //                      } else {
 583 //                              return getMethodComment(cu, typeName, decl, false, false, null, null, lineDelimiter);
 584 //                      }
 585 //              }
 586
 587                 /**
 588                  * Returns the comment for a method using the comment code templates.
 589                  * <code>null</code> is returned if the template is empty.
 590                  * @param cu The compilation unit to which the method belongs
 591                  * @param typeName Name of the type to which the method belongs.
 592                  * @param decl The AST MethodDeclaration node that will be added as new
 593                  * method.
 594                  * @param isOverridden <code>true</code> iff decl overrides another method
 595                  * @param isDeprecated <code>true</code> iff the method that decl overrides is deprecated.
 596                  * Note: it must not be <code>true</code> if isOverridden is <code>false</code>.
 597                  * @param declaringClassQualifiedName Fully qualified name of the type in which the overriddden
 598                  * method (if any exists) in declared. If isOverridden is <code>false</code>, this is ignored.
 599                  * @param parameterTypesQualifiedNames Fully qualified names of parameter types of the type in which the overriddden
 600                  * method (if any exists) in declared. If isOverridden is <code>false</code>, this is ignored.
 601                  * @return String Returns the method comment or <code>null</code> if the
 602                  * configured template is empty.
 603                  * (formatting required)
 604                  * @throws CoreException
 605                  */
 606 //              public static String getMethodComment(ICompilationUnit cu, String typeName, MethodDeclaration decl, boolean isOverridden, boolean isDeprecated, String declaringClassQualifiedName, String[] parameterTypesQualifiedNames, String lineDelimiter) throws CoreException {
 607 //                      String templateName= CodeTemplateContextType.METHODCOMMENT;
 608 //                      if (decl.isConstructor()) {
 609 //                              templateName= CodeTemplateContextType.CONSTRUCTORCOMMENT;
 610 //                      } else if (isOverridden) {
 611 //                              templateName= CodeTemplateContextType.OVERRIDECOMMENT;
 612 //                      }
 613 //                      Template template= PHPeclipsePlugin.getDefault().getCodeTemplateStore().findTemplate(templateName);
 614 //                      if (template == null) {
 615 //                              return null;
 616 //                      }
 617 //                      CodeTemplateContext context= new CodeTemplateContext(template.getContextTypeId(), cu.getJavaProject(), lineDelimiter);
 618 //                      context.setCompilationUnitVariables(cu);
 619 //                      context.setVariable(CodeTemplateContextType.ENCLOSING_TYPE, typeName);
 620 //                      context.setVariable(CodeTemplateContextType.ENCLOSING_METHOD, decl.getName().getIdentifier());
 621 //                      if (!decl.isConstructor()) {
 622 //                              context.setVariable(CodeTemplateContextType.RETURN_TYPE, ASTNodes.asString(decl.getReturnType()));
 623 //                      }
 624 //                      if (isOverridden) {
 625 //                              String methodName= decl.getName().getIdentifier();
 626 //                              context.setVariable(CodeTemplateContextType.SEE_TAG, getSeeTag(declaringClassQualifiedName, methodName, parameterTypesQualifiedNames));
 627 //                      }
 628 //
 629 //                      TemplateBuffer buffer;
 630 //                      try {
 631 //                              buffer= context.evaluate(template);
 632 //                      } catch (BadLocationException e) {
 633 //                              throw new CoreException(Status.CANCEL_STATUS);
 634 //                      } catch (TemplateException e) {
 635 //                              throw new CoreException(Status.CANCEL_STATUS);
 636 //                      }
 637 //                      if (buffer == null)
 638 //                              return null;
 639 //                      String str= buffer.getString();
 640 //                      if (Strings.containsOnlyWhitespaces(str)) {
 641 //                              return null;
 642 //                      }
 643 //                      TemplateVariable position= findTagVariable(buffer);  // look if Javadoc tags have to be added
 644 //                      if (position == null) {
 645 //                              return str;
 646 //                      }
 647 //
 648 //                      IDocument textBuffer= new Document(str);
 649 //                      List params= decl.parameters();
 650 //                      String[] paramNames= new String[params.size()];
 651 //                      for (int i= 0; i < params.size(); i++) {
 652 //                              SingleVariableDeclaration elem= (SingleVariableDeclaration) params.get(i);
 653 //                              paramNames[i]= elem.getName().getIdentifier();
 654 //                      }
 655 //                      List exceptions= decl.thrownExceptions();
 656 //                      String[] exceptionNames= new String[exceptions.size()];
 657 //                      for (int i= 0; i < exceptions.size(); i++) {
 658 //                              exceptionNames[i]= ASTNodes.getSimpleNameIdentifier((Name) exceptions.get(i));
 659 //                      }
 660 //                      String returnType= !decl.isConstructor() ? ASTNodes.asString(decl.getReturnType()) : null;
 661 //                      int[] tagOffsets= position.getOffsets();
 662 //                      for (int i= tagOffsets.length - 1; i >= 0; i--) { // from last to first
 663 //                              try {
 664 //                                      insertTag(textBuffer, tagOffsets[i], position.getLength(), paramNames, exceptionNames, returnType, isDeprecated, lineDelimiter);
 665 //                              } catch (BadLocationException e) {
 666 //                                      throw new CoreException(PHPUIStatus.createError(IStatus.ERROR, e));
 667 //                              }
 668 //                      }
 669 //                      return textBuffer.get();
 670 //              }
 671
 672                 private static TemplateVariable findTagVariable(TemplateBuffer buffer) {
 673                         TemplateVariable[] positions= buffer.getVariables();
 674                         for (int i= 0; i < positions.length; i++) {
 675                                 TemplateVariable curr= positions[i];
 676                                 if (CodeTemplateContextType.TAGS.equals(curr.getType())) {
 677                                         return curr;
 678                                 }
 679                         }
 680                         return null;
 681                 }
 682
 683                 private static void insertTag(IDocument textBuffer, int offset, int length, String[] paramNames, String[] exceptionNames, String returnType, boolean isDeprecated, String lineDelimiter) throws BadLocationException {
 684                         IRegion region= textBuffer.getLineInformationOfOffset(offset);
 685                         if (region == null) {
 686                                 return;
 687                         }
 688                         String lineStart= textBuffer.get(region.getOffset(), offset - region.getOffset());
 689
 690                         StringBuffer buf= new StringBuffer();
 691                         for (int i= 0; i < paramNames.length; i++) {
 692                                 if (buf.length() > 0) {
 693                                         buf.append(lineDelimiter); buf.append(lineStart);
 694                                 }
 695                                 buf.append("@param "); buf.append(paramNames[i]); //$NON-NLS-1$
 696                         }
 697                         if (returnType != null && !returnType.equals("void")) { //$NON-NLS-1$
 698                                 if (buf.length() > 0) {
 699                                         buf.append(lineDelimiter); buf.append(lineStart);
 700                                 }
 701                                 buf.append("@return"); //$NON-NLS-1$
 702                         }
 703                         if (exceptionNames != null) {
 704                                 for (int i= 0; i < exceptionNames.length; i++) {
 705                                         if (buf.length() > 0) {
 706                                                 buf.append(lineDelimiter); buf.append(lineStart);
 707                                         }
 708                                         buf.append("@throws "); buf.append(exceptionNames[i]); //$NON-NLS-1$
 709                                 }
 710                         }
 711                         if (isDeprecated) {
 712                                 if (buf.length() > 0) {
 713                                         buf.append(lineDelimiter); buf.append(lineStart);
 714                                 }
 715                                 buf.append("@deprecated"); //$NON-NLS-1$
 716                         }
 717                         textBuffer.replace(offset, length, buf.toString());
 718                 }
 719
 720                 private static boolean isPrimitiveType(String typeName) {
 721                         char first= Signature.getElementType(typeName).charAt(0);
 722                         return (first != Signature.C_RESOLVED && first != Signature.C_UNRESOLVED);
 723                 }
 724
 725                 private static String resolveAndAdd(String refTypeSig, IType declaringType) throws JavaModelException {//, IImportsStructure imports) throws JavaModelException {
 726                         String resolvedTypeName= JavaModelUtil.getResolvedTypeName(refTypeSig, declaringType);
 727                         if (resolvedTypeName != null) {
 728                                 StringBuffer buf= new StringBuffer();
 729 //                              if (imports != null) {
 730 //                                      buf.append(imports.addImport(resolvedTypeName));
 731 //                              } else {
 732                                         buf.append(resolvedTypeName);
 733 //                              }
 734                                 int arrayCount= Signature.getArrayCount(refTypeSig);
 735                                 for (int i= 0; i < arrayCount; i++) {
 736                                         buf.append("[]"); //$NON-NLS-1$
 737                                 }
 738                                 return buf.toString();
 739                         }
 740                         return Signature.toString(refTypeSig);
 741                 }
 742
 743                 /**
 744                  * Finds a method in a list of methods.
 745                  * @return The found method or null, if nothing found
 746                  */
 747                 private static IMethod findMethod(IMethod method, List allMethods) throws JavaModelException {
 748                         String name= method.getElementName();
 749                         String[] paramTypes= method.getParameterTypes();
 750                         boolean isConstructor= method.isConstructor();
 751
 752                         for (int i= allMethods.size() - 1; i >= 0; i--) {
 753                                 IMethod curr= (IMethod) allMethods.get(i);
 754                                 if (JavaModelUtil.isSameMethodSignature(name, paramTypes, isConstructor, curr)) {
 755                                         return curr;
 756                                 }
 757                         }
 758                         return null;
 759                 }
 760
 761                 /**
 762                  * Creates needed constructors for a type.
 763                  * @param type The type to create constructors for
 764                  * @param supertype The type's super type
 765                  * @param settings Options for comment generation
 766                  * @param imports Required imports are added to the import structure. Structure can be <code>null</code>, types are qualified then.
 767                  * @return Returns the generated stubs or <code>null</code> if the creation has been canceled
 768                  */
 769 //              public static String[] evalConstructors(IType type, IType supertype, IImportsStructure imports) throws CoreException {
 770 //                      IMethod[] superMethods= supertype.getMethods();
 771 //                      String typeName= type.getElementName();
 772 //                      ICompilationUnit cu= type.getCompilationUnit();
 773 //                      IMethod[] methods= type.getMethods();
 774 //                      GenStubSettings genStubSettings= new GenStubSettings(settings);
 775 //                      genStubSettings.callSuper= true;
 776 //
 777 //                      ArrayList newMethods= new ArrayList(superMethods.length);
 778 //                      for (int i= 0; i < superMethods.length; i++) {
 779 //                              IMethod curr= superMethods[i];
 780 //                              if (curr.isConstructor() && (JavaModelUtil.isVisibleInHierarchy(curr, type.getPackageFragment()))) {
 781 //                                      if (JavaModelUtil.findMethod(typeName, curr.getParameterTypes(), true, methods) == null) {
 782 //                                              genStubSettings.methodModifiers= Flags.AccPublic | JdtFlags.clearAccessModifiers(curr.getFlags());
 783 //                                              String newStub= genStub(cu, typeName, curr, curr.getDeclaringType(), genStubSettings, imports);
 784 //                                              newMethods.add(newStub);
 785 //                                      }
 786 //                              }
 787 //                      }
 788 //                      return (String[]) newMethods.toArray(new String[newMethods.size()]);
 789 //              }
 790
 791                 /**
 792                  * Returns all unimplemented constructors of a type including root type default
 793                  * constructors if there are no other superclass constructors unimplemented.
 794                  * @param type The type to create constructors for
 795                  * @return Returns the generated stubs or <code>null</code> if the creation has been canceled
 796                  */
 797 //              public static IMethod[] getOverridableConstructors(IType type) throws CoreException {
 798 //                      List constructorMethods= new ArrayList();
 799 //                      ITypeHierarchy hierarchy= type.newSupertypeHierarchy(null);
 800 //                      IType supertype= hierarchy.getSuperclass(type);
 801 //                      if (supertype == null)
 802 //                              return (new IMethod[0]);
 803 //
 804 //                      IMethod[] superMethods= supertype.getMethods();
 805 //                      boolean constuctorFound= false;
 806 //                      String typeName= type.getElementName();
 807 //                      IMethod[] methods= type.getMethods();
 808 //                      for (int i= 0; i < superMethods.length; i++) {
 809 //                                      IMethod curr= superMethods[i];
 810 //                                      if (curr.isConstructor())  {
 811 //                                              constuctorFound= true;
 812 //                                              if (JavaModelUtil.isVisibleInHierarchy(curr, type.getPackageFragment()))
 813 //                                                      if (JavaModelUtil.findMethod(typeName, curr.getParameterTypes(), true, methods) == null)
 814 //                                                              constructorMethods.add(curr);
 815 //
 816 //                                      }
 817 //                      }
 818 //
 819 //                      // http://bugs.eclipse.org/bugs/show_bug.cgi?id=38487
 820 //                      if (!constuctorFound)  {
 821 //                              IType objectType= type.getJavaProject().findType("java.lang.Object"); //$NON-NLS-1$
 822 //                              IMethod curr= objectType.getMethod("Object", EMPTY);  //$NON-NLS-1$
 823 //                              if (JavaModelUtil.findMethod(typeName, curr.getParameterTypes(), true, methods) == null) {
 824 //                                      constructorMethods.add(curr);
 825 //                              }
 826 //                      }
 827 //                      return (IMethod[]) constructorMethods.toArray(new IMethod[constructorMethods.size()]);
 828 //              }
 829
 830                 /**
 831                  * Returns all overridable methods of a type
 832                  * @param type The type to search the overridable methods for
 833                  * @param hierarchy The type hierarchy of the type
 834                  * @param isSubType If set, the result can include methods of the passed type, if not only methods from super
 835                  * types are considered
 836                  * @return Returns the all methods that can be overridden
 837                  */
 838 //              public static IMethod[] getOverridableMethods(IType type, ITypeHierarchy hierarchy, boolean isSubType) throws JavaModelException {
 839 //                      List allMethods= new ArrayList();
 840 //
 841 //                      IMethod[] typeMethods= type.getMethods();
 842 //                      for (int i= 0; i < typeMethods.length; i++) {
 843 //                              IMethod curr= typeMethods[i];
 844 //                              if (!curr.isConstructor() && !Flags.isStatic(curr.getFlags()) && !Flags.isPrivate(curr.getFlags())) {
 845 //                                      allMethods.add(curr);
 846 //                              }
 847 //                      }
 848 //
 849 //                      IType[] superTypes= hierarchy.getAllSuperclasses(type);
 850 //                      for (int i= 0; i < superTypes.length; i++) {
 851 //                              IMethod[] methods= superTypes[i].getMethods();
 852 //                              for (int k= 0; k < methods.length; k++) {
 853 //                                      IMethod curr= methods[k];
 854 //                                      if (!curr.isConstructor() && !Flags.isStatic(curr.getFlags()) && !Flags.isPrivate(curr.getFlags())) {
 855 //                                              if (findMethod(curr, allMethods) == null) {
 856 //                                                      allMethods.add(curr);
 857 //                                              }
 858 //                                      }
 859 //                              }
 860 //                      }
 861 //
 862 //                      IType[] superInterfaces= hierarchy.getAllSuperInterfaces(type);
 863 //                      for (int i= 0; i < superInterfaces.length; i++) {
 864 //                              IMethod[] methods= superInterfaces[i].getMethods();
 865 //                              for (int k= 0; k < methods.length; k++) {
 866 //                                      IMethod curr= methods[k];
 867 //
 868 //                                      // binary interfaces can contain static initializers (variable intializations)
 869 //                                      // 1G4CKUS
 870 //                                      if (!Flags.isStatic(curr.getFlags())) {
 871 //                                              IMethod impl= findMethod(curr, allMethods);
 872 //                                              if (impl == null || !JavaModelUtil.isVisibleInHierarchy(impl, type.getPackageFragment()) || prefereInterfaceMethod(hierarchy, curr, impl)) {
 873 //                                                      if (impl != null) {
 874 //                                                              allMethods.remove(impl);
 875 //                                                      }
 876 //                                                      // implement an interface method when it does not exist in the hierarchy
 877 //                                                      // or when it throws less exceptions that the implemented
 878 //                                                      allMethods.add(curr);
 879 //                                              }
 880 //                                      }
 881 //                              }
 882 //                      }
 883 //                      if (!isSubType) {
 884 //                              allMethods.removeAll(Arrays.asList(typeMethods));
 885 //                      }
 886 //                      // remove finals
 887 //                      for (int i= allMethods.size() - 1; i >= 0; i--) {
 888 //                              IMethod curr= (IMethod) allMethods.get(i);
 889 //                              if (Flags.isFinal(curr.getFlags())) {
 890 //                                      allMethods.remove(i);
 891 //                              }
 892 //                      }
 893 //                      return (IMethod[]) allMethods.toArray(new IMethod[allMethods.size()]);
 894 //              }
 895
 896 //              private static boolean prefereInterfaceMethod(ITypeHierarchy hierarchy, IMethod interfaceMethod, IMethod curr) throws JavaModelException {
 897 //                      if (Flags.isFinal(curr.getFlags())) {
 898 //                              return false;
 899 //                      }
 900 //                      IType interfaceType= interfaceMethod.getDeclaringType();
 901 //                      IType[] interfaces= hierarchy.getAllSuperInterfaces(curr.getDeclaringType());
 902 //                      for (int i= 0; i < interfaces.length; i++) {
 903 //                              if (interfaces[i] == interfaceType) {
 904 //                                      return false;
 905 //                              }
 906 //                      }
 907 //                      return curr.getExceptionTypes().length > interfaceMethod.getExceptionTypes().length;
 908 //              }
 909
 910                 /**
 911                  * Generate method stubs for methods to overrride
 912                  * @param type The type to search the overridable methods for
 913                  * @param hierarchy The type hierarchy of the type
 914                  * @param methodsToImplement Methods to override or implement
 915                  * @param settings Options for comment generation
 916                  * @param imports Required imports are added to the import structure. Structure can be <code>null</code>, types are qualified then.
 917                  * @return Returns the generated stubs
 918                  */
 919 //              public static String[] genOverrideStubs(IMethod[] methodsToImplement, IType type, ITypeHierarchy hierarchy, CodeGenerationSettings settings, IImportsStructure imports) throws CoreException {
 920 //                      GenStubSettings genStubSettings= new GenStubSettings(settings);
 921 //                      genStubSettings.methodOverwrites= true;
 922 //                      ICompilationUnit cu= type.getCompilationUnit();
 923 //                      String[] result= new String[methodsToImplement.length];
 924 //                      for (int i= 0; i < methodsToImplement.length; i++) {
 925 //                              IMethod curr= methodsToImplement[i];
 926 //                              IMethod overrides= JavaModelUtil.findMethodImplementationInHierarchy(hierarchy, type, curr.getElementName(), curr.getParameterTypes(), curr.isConstructor());
 927 //                              if (overrides != null) {
 928 //                                      genStubSettings.callSuper= true;
 929 //                                      curr= overrides;
 930 //                              }
 931 //                              genStubSettings.methodModifiers= curr.getFlags();
 932 //                              IMethod desc= JavaModelUtil.findMethodDeclarationInHierarchy(hierarchy, type, curr.getElementName(), curr.getParameterTypes(), curr.isConstructor());
 933 //                              if (desc == null) {
 934 //                                      desc= curr;
 935 //                              }
 936 //                              result[i]= genStub(cu, type.getElementName(), curr, desc.getDeclaringType(), genStubSettings, imports);
 937 //                      }
 938 //                      return result;
 939 //              }
 940                 /**
 941                  * Searches for unimplemented methods of a type.
 942                  * @param isSubType If set, the evaluation is for a subtype of the given type. If not set, the
 943                  * evaluation is for the type itself.
 944                  * @param settings Options for comment generation
 945                  * @param imports Required imports are added to the import structure. Structure can be <code>null</code>, types are qualified then.
 946                  * @return Returns the generated stubs or <code>null</code> if the creation has been canceled
 947                  */
 948 //              public static String[] evalUnimplementedMethods(IType type, ITypeHierarchy hierarchy, boolean isSubType, CodeGenerationSettings settings,
 949 //                              IImportsStructure imports) throws CoreException {
 950 //
 951 //                      IMethod[] inheritedMethods= getOverridableMethods(type, hierarchy, isSubType);
 952 //
 953 //                      List toImplement= new ArrayList();
 954 //                      for (int i= 0; i < inheritedMethods.length; i++) {
 955 //                              IMethod curr= inheritedMethods[i];
 956 //                              if (JdtFlags.isAbstract(curr)) {
 957 //                                      toImplement.add(curr);
 958 //                              }
 959 //                      }
 960 //                      IMethod[] toImplementArray= (IMethod[]) toImplement.toArray(new IMethod[toImplement.size()]);
 961 //                      return genOverrideStubs(toImplementArray, type, hierarchy, settings, imports);
 962 //              }
 963
 964                 /**
 965                  * Examines a string and returns the first line delimiter found.
 966                  */
 967                 public static String getLineDelimiterUsed(IJavaElement elem) throws JavaModelException {
 968                         ICompilationUnit cu= (ICompilationUnit) elem.getAncestor(IJavaElement.COMPILATION_UNIT);
 969                         if (cu != null && cu.exists()) {
 970                                 IBuffer buf= cu.getBuffer();
 971                                 int length= buf.getLength();
 972                                 for (int i= 0; i < length; i++) {
 973                                         char ch= buf.getChar(i);
 974                                         if (ch == SWT.CR) {
 975                                                 if (i + 1 < length) {
 976                                                         if (buf.getChar(i + 1) == SWT.LF) {
 977                                                                 return "\r\n"; //$NON-NLS-1$
 978                                                         }
 979                                                 }
 980                                                 return "\r"; //$NON-NLS-1$
 981                                         } else if (ch == SWT.LF) {
 982                                                 return "\n"; //$NON-NLS-1$
 983                                         }
 984                                 }
 985                         }
 986                         return System.getProperty("line.separator", "\n"); //$NON-NLS-1$ //$NON-NLS-2$
 987                 }
 988
 989
 990         /**
 991          * Embodies the policy which line delimiter to use when inserting into
 992          * a document.
 993          */
 994         public static String getLineDelimiterFor(IDocument doc) {
 995                 // new for: 1GF5UU0: ITPJUI:WIN2000 - "Organize Imports" in php editor inserts lines in wrong format
 996                 String lineDelim= null;
 997                 try {
 998                         lineDelim= doc.getLineDelimiter(0);
 999                 } catch (BadLocationException e) {
1000                 }
1001                 if (lineDelim == null) {
1002                         String systemDelimiter= System.getProperty("line.separator", "\n"); //$NON-NLS-1$ //$NON-NLS-2$
1003                         String[] lineDelims= doc.getLegalLineDelimiters();
1004                         for (int i= 0; i < lineDelims.length; i++) {
1005                                 if (lineDelims[i].equals(systemDelimiter)) {
1006                                         lineDelim= systemDelimiter;
1007                                         break;
1008                                 }
1009                         }
1010                         if (lineDelim == null) {
1011                                 lineDelim= lineDelims.length > 0 ? lineDelims[0] : systemDelimiter;
1012                         }
1013                 }
1014                 return lineDelim;
1015         }
1016
1017
1018         /**
1019          * Evaluates the indention used by a Java element. (in tabulators)
1020          */
1021 //      public static int getIndentUsed(IJavaElement elem) throws JavaModelException {
1022 //              if (elem instanceof ISourceReference) {
1023 //                      ICompilationUnit cu= (ICompilationUnit) elem.getAncestor(IJavaElement.COMPILATION_UNIT);
1024 //                      if (cu != null) {
1025 //                              IBuffer buf= cu.getBuffer();
1026 //                              int offset= ((ISourceReference)elem).getSourceRange().getOffset();
1027 //                              int i= offset;
1028 //                              // find beginning of line
1029 //                              while (i > 0 && !Strings.isLineDelimiterChar(buf.getChar(i - 1)) ){
1030 //                                      i--;
1031 //                              }
1032 //                              return Strings.computeIndent(buf.getText(i, offset - i), CodeFormatterUtil.getTabWidth());
1033 //                      }
1034 //              }
1035 //              return 0;
1036 //      }
1037
1038         public static String codeFormat(String sourceString, int initialIndentationLevel, String lineDelim) {
1039                 ICodeFormatter formatter= ToolFactory.createDefaultCodeFormatter(null);
1040                 return formatter.format(sourceString, initialIndentationLevel, null, lineDelim);
1041         }
1042
1043         /**
1044          * Returns the element after the give element.
1045          */
1046 //      public static IJavaElement findNextSibling(IJavaElement member) throws JavaModelException {
1047 //              IJavaElement parent= member.getParent();
1048 //              if (parent instanceof IParent) {
1049 //                      IJavaElement[] elements= ((IParent)parent).getChildren();
1050 //                      for (int i= elements.length - 2; i >= 0 ; i--) {
1051 //                              if (member.equals(elements[i])) {
1052 //                                      return elements[i+1];
1053 //                              }
1054 //                      }
1055 //              }
1056 //              return null;
1057 //      }
1058 //
1059         public static String getTodoTaskTag(IJavaProject project) {
1060                 String markers= null;
1061                 if (project == null) {
1062                         markers= JavaCore.getOption(JavaCore.COMPILER_TASK_TAGS);
1063                 } else {
1064                         markers= project.getOption(JavaCore.COMPILER_TASK_TAGS, true);
1065                 }
1066
1067                 if (markers != null && markers.length() > 0) {
1068                         int idx= markers.indexOf(',');
1069                         if (idx == -1) {
1070                                 return markers;
1071                         } else {
1072                                 return markers.substring(0, idx);
1073                         }
1074                 }
1075                 return null;
1076         }
1077         /*
1078          * Workarounds for bug 38111
1079          */
1080 //      public static String[] getArgumentNameSuggestions(IJavaProject project, String baseName, int dimensions, String[] excluded) {
1081 //              String name= workaround38111(baseName);
1082 //              String[] res= NamingConventions.suggestArgumentNames(project, "", name, dimensions, excluded); //$NON-NLS-1$
1083 //              return sortByLength(res); // longest first
1084 //      }
1085 //
1086 //      public static String[] getFieldNameSuggestions(IJavaProject project, String baseName, int dimensions, int modifiers, String[] excluded) {
1087 //              String name= workaround38111(baseName);
1088 //              String[] res= NamingConventions.suggestFieldNames(project, "", name, dimensions, modifiers, excluded); //$NON-NLS-1$
1089 //              return sortByLength(res); // longest first
1090 //      }
1091 //
1092 //      public static String[] getLocalNameSuggestions(IJavaProject project, String baseName, int dimensions, String[] excluded) {
1093 //              String name= workaround38111(baseName);
1094 //              String[] res= NamingConventions.suggestLocalVariableNames(project, "", name, dimensions, excluded); //$NON-NLS-1$
1095 //              return sortByLength(res); // longest first
1096 //      }
1097
1098         private static String[] sortByLength(String[] proposals) {
1099                 Arrays.sort(proposals, new Comparator() {
1100                         public int compare(Object o1, Object o2) {
1101                                 return ((String) o2).length() - ((String) o1).length();
1102                         }
1103                 });
1104                 return proposals;
1105         }
1106
1107         private static String workaround38111(String baseName) {
1108                 if (BASE_TYPES.contains(baseName))
1109                         return baseName;
1110                 return Character.toUpperCase(baseName.charAt(0)) + baseName.substring(1);
1111         }
1112
1113         private static final List BASE_TYPES= Arrays.asList(
1114                         new String[] {"boolean", "byte", "char", "double", "float", "int", "long", "short"});  //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$
1115
1116         public static String suggestArgumentName(IJavaProject project, String baseName, String[] excluded) {
1117 //              String[] argnames= getArgumentNameSuggestions(project, baseName, 0, excluded);
1118 //              if (argnames.length > 0) {
1119 //                      return argnames[0];
1120 //              }
1121                 return baseName;
1122         }
1123
1124         public static String[] suggestArgumentNames(IJavaProject project, String[] paramNames) {
1125                 String prefixes= project.getOption(JavaCore.CODEASSIST_ARGUMENT_PREFIXES, true);
1126                 String suffixes= project.getOption(JavaCore.CODEASSIST_ARGUMENT_SUFFIXES, true);
1127                 if (prefixes.length() + suffixes.length() == 0) {
1128                         return paramNames;
1129                 }
1130
1131                 String[] newNames= new String[paramNames.length];
1132                 // Ensure that the codegeneration preferences are respected
1133                 for (int i= 0; i < paramNames.length; i++) {
1134                         String curr= paramNames[i];
1135                         if (!hasPrefixOrSuffix(prefixes, suffixes, curr)) {
1136                                 newNames[i]= suggestArgumentName(project, paramNames[i], null);
1137                         } else {
1138                                 newNames[i]= curr;
1139                         }
1140                 }
1141                 return newNames;
1142         }
1143
1144         public static boolean hasFieldName(IJavaProject project, String name) {
1145                 String prefixes= project.getOption(JavaCore.CODEASSIST_FIELD_PREFIXES, true);
1146                 String suffixes= project.getOption(JavaCore.CODEASSIST_FIELD_SUFFIXES, true);
1147                 String staticPrefixes= project.getOption(JavaCore.CODEASSIST_STATIC_FIELD_PREFIXES, true);
1148                 String staticSuffixes= project.getOption(JavaCore.CODEASSIST_STATIC_FIELD_SUFFIXES, true);
1149
1150
1151                 return hasPrefixOrSuffix(prefixes, suffixes, name)
1152                         || hasPrefixOrSuffix(staticPrefixes, staticSuffixes, name);
1153         }
1154
1155         public static boolean hasParameterName(IJavaProject project, String name) {
1156                 String prefixes= project.getOption(JavaCore.CODEASSIST_ARGUMENT_PREFIXES, true);
1157                 String suffixes= project.getOption(JavaCore.CODEASSIST_ARGUMENT_SUFFIXES, true);
1158                 return hasPrefixOrSuffix(prefixes, suffixes, name);
1159         }
1160
1161         public static boolean hasLocalVariableName(IJavaProject project, String name) {
1162                 String prefixes= project.getOption(JavaCore.CODEASSIST_LOCAL_PREFIXES, true);
1163                 String suffixes= project.getOption(JavaCore.CODEASSIST_LOCAL_SUFFIXES, true);
1164                 return hasPrefixOrSuffix(prefixes, suffixes, name);
1165         }
1166
1167         public static boolean hasConstantName(String name) {
1168                 return Character.isUpperCase(name.charAt(0));
1169         }
1170
1171
1172         private static boolean hasPrefixOrSuffix(String prefixes, String suffixes, String name) {
1173                 final String listSeparartor= ","; //$NON-NLS-1$
1174
1175                 StringTokenizer tok= new StringTokenizer(prefixes, listSeparartor);
1176                 while (tok.hasMoreTokens()) {
1177                         String curr= tok.nextToken();
1178                         if (name.startsWith(curr)) {
1179                                 return true;
1180                         }
1181                 }
1182
1183                 tok= new StringTokenizer(suffixes, listSeparartor);
1184                 while (tok.hasMoreTokens()) {
1185                         String curr= tok.nextToken();
1186                         if (name.endsWith(curr)) {
1187                                 return true;
1188                         }
1189                 }
1190                 return false;
1191         }
1192 }