Java Code Examples for org.eclipse.jdt.core.dom.VariableDeclarationFragment#getParent()

private static Type extractType(VariableDeclaration variableDeclaration) {
	Type returnedVariableType = null;
	if(variableDeclaration instanceof SingleVariableDeclaration) {
		SingleVariableDeclaration singleVariableDeclaration = (SingleVariableDeclaration)variableDeclaration;
		returnedVariableType = singleVariableDeclaration.getType();
	}
	else if(variableDeclaration instanceof VariableDeclarationFragment) {
		VariableDeclarationFragment fragment = (VariableDeclarationFragment)variableDeclaration;
		if(fragment.getParent() instanceof VariableDeclarationStatement) {
			VariableDeclarationStatement variableDeclarationStatement = (VariableDeclarationStatement)fragment.getParent();
			returnedVariableType = variableDeclarationStatement.getType();
		}
		else if(fragment.getParent() instanceof VariableDeclarationExpression) {
			VariableDeclarationExpression variableDeclarationExpression = (VariableDeclarationExpression)fragment.getParent();
			returnedVariableType = variableDeclarationExpression.getType();
		}
		else if(fragment.getParent() instanceof FieldDeclaration) {
			FieldDeclaration fieldDeclaration = (FieldDeclaration)fragment.getParent();
			returnedVariableType = fieldDeclaration.getType();
		}
	}
	return returnedVariableType;
}
 

private static CodeElementType extractVariableDeclarationType(org.eclipse.jdt.core.dom.VariableDeclaration variableDeclaration) {
	if(variableDeclaration instanceof SingleVariableDeclaration) {
		return CodeElementType.SINGLE_VARIABLE_DECLARATION;
	}
	else if(variableDeclaration instanceof VariableDeclarationFragment) {
		VariableDeclarationFragment fragment = (VariableDeclarationFragment)variableDeclaration;
		if(fragment.getParent() instanceof VariableDeclarationStatement) {
			return CodeElementType.VARIABLE_DECLARATION_STATEMENT;
		}
		else if(fragment.getParent() instanceof VariableDeclarationExpression) {
			return CodeElementType.VARIABLE_DECLARATION_EXPRESSION;
		}
		else if(fragment.getParent() instanceof FieldDeclaration) {
			return CodeElementType.FIELD_DECLARATION;
		}
	}
	return null;
}
 

private static Type extractType(org.eclipse.jdt.core.dom.VariableDeclaration variableDeclaration) {
	Type returnedVariableType = null;
	if(variableDeclaration instanceof SingleVariableDeclaration) {
		SingleVariableDeclaration singleVariableDeclaration = (SingleVariableDeclaration)variableDeclaration;
		returnedVariableType = singleVariableDeclaration.getType();
	}
	else if(variableDeclaration instanceof VariableDeclarationFragment) {
		VariableDeclarationFragment fragment = (VariableDeclarationFragment)variableDeclaration;
		if(fragment.getParent() instanceof VariableDeclarationStatement) {
			VariableDeclarationStatement variableDeclarationStatement = (VariableDeclarationStatement)fragment.getParent();
			returnedVariableType = variableDeclarationStatement.getType();
		}
		else if(fragment.getParent() instanceof VariableDeclarationExpression) {
			VariableDeclarationExpression variableDeclarationExpression = (VariableDeclarationExpression)fragment.getParent();
			returnedVariableType = variableDeclarationExpression.getType();
		}
		else if(fragment.getParent() instanceof FieldDeclaration) {
			FieldDeclaration fieldDeclaration = (FieldDeclaration)fragment.getParent();
			returnedVariableType = fieldDeclaration.getType();
		}
	}
	return returnedVariableType;
}
 

@Override
public boolean visit(final VariableDeclarationFragment it) {
  it.getName().accept(this);
  Expression _initializer = it.getInitializer();
  boolean _tripleNotEquals = (_initializer != null);
  if (_tripleNotEquals) {
    this.appendToBuffer("=");
    final Type type = this._aSTFlattenerUtils.findDeclaredType(it.getName());
    if ((this._aSTFlattenerUtils.needPrimitiveCast(type) && (!this.hasDimensions(it)))) {
      this.appendToBuffer("(");
      it.getInitializer().accept(this);
      StringConcatenation _builder = new StringConcatenation();
      _builder.append(") as ");
      _builder.append(type);
      this.appendToBuffer(_builder.toString());
    } else {
      it.getInitializer().accept(this);
    }
  } else {
    ASTNode _parent = it.getParent();
    if ((_parent instanceof VariableDeclarationStatement)) {
      ASTNode _parent_1 = it.getParent();
      boolean _isFinal = this._aSTFlattenerUtils.isFinal(((VariableDeclarationStatement) _parent_1).modifiers());
      if (_isFinal) {
        this.appendToBuffer("/* FIXME empty initializer for final variable is not supported */");
        this.addProblem(it, "Empty initializer for final variables is not supported.");
      }
    }
  }
  return false;
}
 

public boolean visit(VariableDeclarationFragment node) {
	if(!(node.getParent() instanceof LambdaExpression)) {
		VariableDeclaration variableDeclaration = new VariableDeclaration(cu, filePath, node);
		variableDeclarations.add(variableDeclaration);
		if(current.getUserObject() != null) {
			AnonymousClassDeclarationObject anonymous = (AnonymousClassDeclarationObject)current.getUserObject();
			anonymous.getVariableDeclarations().add(variableDeclaration);
		}
	}
	return super.visit(node);
}
 

private void modifyContext() {
	boolean typeFieldInSingleFragment = false;
	VariableDeclarationFragment fragment = typeCheckElimination.getTypeField();
	if(fragment != null) {
		FieldDeclaration fieldDeclaration = (FieldDeclaration)fragment.getParent();
		if(fieldDeclaration.fragments().size() == 1) {
			typeFieldInSingleFragment = true;
		}
	}
	if(typeFieldInSingleFragment) {
		replacePrimitiveStateField();
	}
	else {
		createStateField();
		removePrimitiveStateField();
	}
	generateSetterMethodForStateField();
	generateGetterMethodForStateField();
	replaceConditionalStructureWithPolymorphicMethodInvocation();
	
	generateGettersForAccessedFields();
	generateSettersForAssignedFields();
	setPublicModifierToStaticFields();
	setPublicModifierToAccessedMethods();
	
	addRequiredImportDeclarationsToContext();
}
 

@Override
public boolean visit(VariableDeclarationFragment node) {
	boolean result= super.visit(node);
	if (isFirstSelectedNode(node)) {
		if (node.getParent() instanceof FieldDeclaration) {
			invalidSelection(RefactoringCoreMessages.ExtractMethodAnalyzer_cannot_extract_variable_declaration_fragment_from_field, JavaStatusContext.create(fCUnit, node));
		} else {
			invalidSelection(RefactoringCoreMessages.ExtractMethodAnalyzer_cannot_extract_variable_declaration_fragment, JavaStatusContext.create(fCUnit, node));
		}
		return false;
	}
	return result;
}
 

private SingleVariableDeclaration createParameterDeclaration(String parameterName, VariableDeclarationFragment fragement, Expression arrayAccess, ForStatement statement, ImportRewrite importRewrite, ASTRewrite rewrite, TextEditGroup group, LinkedProposalPositionGroup pg, boolean makeFinal) {
	CompilationUnit compilationUnit= (CompilationUnit)arrayAccess.getRoot();
	AST ast= compilationUnit.getAST();

	SingleVariableDeclaration result= ast.newSingleVariableDeclaration();

	SimpleName name= ast.newSimpleName(parameterName);
	pg.addPosition(rewrite.track(name), true);
	result.setName(name);

	ITypeBinding arrayTypeBinding= arrayAccess.resolveTypeBinding();
	Type type= importType(arrayTypeBinding.getElementType(), statement, importRewrite, compilationUnit);
	if (arrayTypeBinding.getDimensions() != 1) {
		type= ast.newArrayType(type, arrayTypeBinding.getDimensions() - 1);
	}
	result.setType(type);

	if (fragement != null) {
		VariableDeclarationStatement declaration= (VariableDeclarationStatement)fragement.getParent();
		ModifierRewrite.create(rewrite, result).copyAllModifiers(declaration, group);
	}
	if (makeFinal && (fragement == null || ASTNodes.findModifierNode(Modifier.FINAL, ASTNodes.getModifiers(fragement)) == null)) {
		ModifierRewrite.create(rewrite, result).setModifiers(Modifier.FINAL, 0, group);
	}

	return result;
}
 

@Override
public boolean visit(VariableDeclarationFragment node) {
	boolean result = super.visit(node);
	if (isFirstSelectedNode(node)) {
		if (node.getParent() instanceof FieldDeclaration) {
			invalidSelection(RefactoringCoreMessages.ExtractMethodAnalyzer_cannot_extract_variable_declaration_fragment_from_field, JavaStatusContext.create(fCUnit, node));
		} else {
			invalidSelection(RefactoringCoreMessages.ExtractMethodAnalyzer_cannot_extract_variable_declaration_fragment, JavaStatusContext.create(fCUnit, node));
		}
		return false;
	}
	return result;
}
 

@Override
public boolean visit(VariableDeclarationFragment node) {
       String name= getFieldName(node);
       ASTNode parent= node.getParent();
       push(JavaNode.FIELD, name, parent.getStartPosition(), parent.getLength());
       return false;
   }
 

private String getFieldName(VariableDeclarationFragment node) {
    StringBuffer buffer= new StringBuffer();
    buffer.append(node.getName().toString());
    ASTNode parent= node.getParent();
    if (parent instanceof FieldDeclaration) {
        FieldDeclaration fd= (FieldDeclaration) parent;
        buffer.append(" : "); //$NON-NLS-1$
        buffer.append(getType(fd.getType()));
    }
    return buffer.toString();
}
 

/**
 * Remove the field or variable declaration including the initializer.
 * @param rewrite the AST rewriter to use
 * @param reference a reference to the variable to remove
 * @param group the text edit group to use
 */
private void removeVariableReferences(ASTRewrite rewrite, SimpleName reference, TextEditGroup group) {
	ASTNode parent= reference.getParent();
	while (parent instanceof QualifiedName) {
		parent= parent.getParent();
	}
	if (parent instanceof FieldAccess) {
		parent= parent.getParent();
	}

	int nameParentType= parent.getNodeType();
	if (nameParentType == ASTNode.ASSIGNMENT) {
		Assignment assignment= (Assignment) parent;
		Expression rightHand= assignment.getRightHandSide();

		ASTNode assignParent= assignment.getParent();
		if (assignParent.getNodeType() == ASTNode.EXPRESSION_STATEMENT && rightHand.getNodeType() != ASTNode.ASSIGNMENT) {
			removeVariableWithInitializer(rewrite, rightHand, assignParent, group);
		}	else {
			rewrite.replace(assignment, rewrite.createCopyTarget(rightHand), group);
		}
	} else if (nameParentType == ASTNode.SINGLE_VARIABLE_DECLARATION) {
		rewrite.remove(parent, group);
	} else if (nameParentType == ASTNode.VARIABLE_DECLARATION_FRAGMENT) {
		VariableDeclarationFragment frag= (VariableDeclarationFragment) parent;
		ASTNode varDecl= frag.getParent();
		List<VariableDeclarationFragment> fragments;
		if (varDecl instanceof VariableDeclarationExpression) {
			fragments= ((VariableDeclarationExpression) varDecl).fragments();
		} else if (varDecl instanceof FieldDeclaration) {
			fragments= ((FieldDeclaration) varDecl).fragments();
		} else {
			fragments= ((VariableDeclarationStatement) varDecl).fragments();
		}
		Expression initializer = frag.getInitializer();
		ArrayList<Expression> sideEffects= new ArrayList<Expression>();
		if (initializer != null) {
			initializer.accept(new SideEffectFinder(sideEffects));
		}
		boolean sideEffectInitializer= sideEffects.size() > 0;
		if (fragments.size() == fUnusedNames.length) {
			if (fForceRemove) {
				rewrite.remove(varDecl, group);
				return;
			}
			if (parent.getParent() instanceof FieldDeclaration) {
				rewrite.remove(varDecl, group);
				return;
			}
			if (sideEffectInitializer) {
				Statement[] wrapped= new Statement[sideEffects.size()];
				for (int i= 0; i < wrapped.length; i++) {
					Expression sideEffect= sideEffects.get(i);
					Expression movedInit= (Expression) rewrite.createMoveTarget(sideEffect);
					wrapped[i]= rewrite.getAST().newExpressionStatement(movedInit);
				}
				StatementRewrite statementRewrite= new StatementRewrite(rewrite, new ASTNode[] { varDecl });
				statementRewrite.replace(wrapped, group);
			} else {
				rewrite.remove(varDecl, group);
			}
		} else {
			if (fForceRemove) {
				rewrite.remove(frag, group);
				return;
			}
			//multiple declarations in one line
			ASTNode declaration = parent.getParent();
			if (declaration instanceof FieldDeclaration) {
				rewrite.remove(frag, group);
				return;
			}
			if (declaration instanceof VariableDeclarationStatement) {
				splitUpDeclarations(rewrite, group, frag, (VariableDeclarationStatement) declaration, sideEffects);
				rewrite.remove(frag, group);
				return;
			}
			if (declaration instanceof VariableDeclarationExpression) {
				//keep constructors and method invocations
				if (!sideEffectInitializer){
					rewrite.remove(frag, group);
				}
			}
		}
	} else if (nameParentType == ASTNode.POSTFIX_EXPRESSION || nameParentType == ASTNode.PREFIX_EXPRESSION) {
		Expression expression= (Expression)parent;
		ASTNode expressionParent= expression.getParent();
		if (expressionParent.getNodeType() == ASTNode.EXPRESSION_STATEMENT) {
			removeStatement(rewrite, expressionParent, group);
		} else {
			rewrite.remove(expression, group);
		}
	}
}
 

protected void generateSettersForAssignedFields() {
	AST contextAST = sourceTypeDeclaration.getAST();
	Set<VariableDeclarationFragment> assignedFields = new LinkedHashSet<VariableDeclarationFragment>();
	assignedFields.addAll(typeCheckElimination.getAssignedFields());
	assignedFields.addAll(typeCheckElimination.getSuperAssignedFields());
	for(VariableDeclarationFragment fragment : assignedFields) {
		IMethodBinding setterMethodBinding = null;
		if(typeCheckElimination.getSuperAssignedFields().contains(fragment)) {
			for(IVariableBinding fieldBinding : typeCheckElimination.getSuperAssignedFieldBindings()) {
				if(fieldBinding.isEqualTo(fragment.resolveBinding())) {
					setterMethodBinding = typeCheckElimination.getSetterMethodBindingOfSuperAssignedField(fieldBinding);
					break;
				}
			}
		}
		else {
			setterMethodBinding = findSetterMethodInContext(fragment.resolveBinding());
		}
		if(setterMethodBinding == null) {
			FieldDeclaration fieldDeclaration = (FieldDeclaration)fragment.getParent();
			if(!fragment.equals(typeCheckElimination.getTypeField())) {
				ASTRewrite sourceRewriter = ASTRewrite.create(sourceTypeDeclaration.getAST());
				MethodDeclaration newMethodDeclaration = contextAST.newMethodDeclaration();
				sourceRewriter.set(newMethodDeclaration, MethodDeclaration.RETURN_TYPE2_PROPERTY, contextAST.newPrimitiveType(PrimitiveType.VOID), null);
				ListRewrite methodDeclarationModifiersRewrite = sourceRewriter.getListRewrite(newMethodDeclaration, MethodDeclaration.MODIFIERS2_PROPERTY);
				methodDeclarationModifiersRewrite.insertLast(contextAST.newModifier(Modifier.ModifierKeyword.PUBLIC_KEYWORD), null);
				String methodName = fragment.getName().getIdentifier();
				methodName = "set" + methodName.substring(0,1).toUpperCase() + methodName.substring(1,methodName.length());
				sourceRewriter.set(newMethodDeclaration, MethodDeclaration.NAME_PROPERTY, contextAST.newSimpleName(methodName), null);
				ListRewrite methodDeclarationParametersRewrite = sourceRewriter.getListRewrite(newMethodDeclaration, MethodDeclaration.PARAMETERS_PROPERTY);
				SingleVariableDeclaration parameter = contextAST.newSingleVariableDeclaration();
				sourceRewriter.set(parameter, SingleVariableDeclaration.TYPE_PROPERTY, fieldDeclaration.getType(), null);
				sourceRewriter.set(parameter, SingleVariableDeclaration.NAME_PROPERTY, fragment.getName(), null);
				methodDeclarationParametersRewrite.insertLast(parameter, null);
				Block methodDeclarationBody = contextAST.newBlock();
				ListRewrite methodDeclarationBodyStatementsRewrite = sourceRewriter.getListRewrite(methodDeclarationBody, Block.STATEMENTS_PROPERTY);
				Assignment assignment = contextAST.newAssignment();
				sourceRewriter.set(assignment, Assignment.RIGHT_HAND_SIDE_PROPERTY, fragment.getName(), null);
				sourceRewriter.set(assignment, Assignment.OPERATOR_PROPERTY, Assignment.Operator.ASSIGN, null);
				FieldAccess fieldAccess = contextAST.newFieldAccess();
				sourceRewriter.set(fieldAccess, FieldAccess.EXPRESSION_PROPERTY, contextAST.newThisExpression(), null);
				sourceRewriter.set(fieldAccess, FieldAccess.NAME_PROPERTY, fragment.getName(), null);
				sourceRewriter.set(assignment, Assignment.LEFT_HAND_SIDE_PROPERTY, fieldAccess, null);
				ExpressionStatement expressionStatement = contextAST.newExpressionStatement(assignment);
				methodDeclarationBodyStatementsRewrite.insertLast(expressionStatement, null);
				sourceRewriter.set(newMethodDeclaration, MethodDeclaration.BODY_PROPERTY, methodDeclarationBody, null);
				ListRewrite contextBodyRewrite = sourceRewriter.getListRewrite(sourceTypeDeclaration, TypeDeclaration.BODY_DECLARATIONS_PROPERTY);
				contextBodyRewrite.insertLast(newMethodDeclaration, null);
				try {
					TextEdit sourceEdit = sourceRewriter.rewriteAST();
					ICompilationUnit sourceICompilationUnit = (ICompilationUnit)sourceCompilationUnit.getJavaElement();
					CompilationUnitChange change = compilationUnitChanges.get(sourceICompilationUnit);
					change.getEdit().addChild(sourceEdit);
					change.addTextEditGroup(new TextEditGroup("Create setter method for assigned field", new TextEdit[] {sourceEdit}));
				} catch (JavaModelException e) {
					e.printStackTrace();
				}
			}
		}
	}
}
 

protected void generateGettersForAccessedFields() {
	AST contextAST = sourceTypeDeclaration.getAST();
	Set<VariableDeclarationFragment> accessedFields = new LinkedHashSet<VariableDeclarationFragment>();
	accessedFields.addAll(typeCheckElimination.getAccessedFields());
	accessedFields.addAll(typeCheckElimination.getSuperAccessedFields());
	for(VariableDeclarationFragment fragment : accessedFields) {
		if((fragment.resolveBinding().getModifiers() & Modifier.STATIC) == 0) {
			IMethodBinding getterMethodBinding = null;
			if(typeCheckElimination.getSuperAccessedFields().contains(fragment)) {
				for(IVariableBinding fieldBinding : typeCheckElimination.getSuperAccessedFieldBindings()) {
					if(fieldBinding.isEqualTo(fragment.resolveBinding())) {
						getterMethodBinding = typeCheckElimination.getGetterMethodBindingOfSuperAccessedField(fieldBinding);
						break;
					}
				}
			}
			else {
				getterMethodBinding = findGetterMethodInContext(fragment.resolveBinding());
			}
			if(getterMethodBinding == null) {
				FieldDeclaration fieldDeclaration = (FieldDeclaration)fragment.getParent();
				int modifiers = fieldDeclaration.getModifiers();
				if(!fragment.equals(typeCheckElimination.getTypeField()) &&
						!((modifiers & Modifier.PUBLIC) != 0 && (modifiers & Modifier.STATIC) != 0)) {
					ASTRewrite sourceRewriter = ASTRewrite.create(sourceTypeDeclaration.getAST());
					MethodDeclaration newMethodDeclaration = contextAST.newMethodDeclaration();
					sourceRewriter.set(newMethodDeclaration, MethodDeclaration.RETURN_TYPE2_PROPERTY, fieldDeclaration.getType(), null);
					ListRewrite methodDeclarationModifiersRewrite = sourceRewriter.getListRewrite(newMethodDeclaration, MethodDeclaration.MODIFIERS2_PROPERTY);
					methodDeclarationModifiersRewrite.insertLast(contextAST.newModifier(Modifier.ModifierKeyword.PUBLIC_KEYWORD), null);
					String methodName = fragment.getName().getIdentifier();
					methodName = "get" + methodName.substring(0,1).toUpperCase() + methodName.substring(1,methodName.length());
					sourceRewriter.set(newMethodDeclaration, MethodDeclaration.NAME_PROPERTY, contextAST.newSimpleName(methodName), null);
					Block methodDeclarationBody = contextAST.newBlock();
					ListRewrite methodDeclarationBodyStatementsRewrite = sourceRewriter.getListRewrite(methodDeclarationBody, Block.STATEMENTS_PROPERTY);
					ReturnStatement returnStatement = contextAST.newReturnStatement();
					sourceRewriter.set(returnStatement, ReturnStatement.EXPRESSION_PROPERTY, fragment.getName(), null);
					methodDeclarationBodyStatementsRewrite.insertLast(returnStatement, null);
					sourceRewriter.set(newMethodDeclaration, MethodDeclaration.BODY_PROPERTY, methodDeclarationBody, null);
					ListRewrite contextBodyRewrite = sourceRewriter.getListRewrite(sourceTypeDeclaration, TypeDeclaration.BODY_DECLARATIONS_PROPERTY);
					contextBodyRewrite.insertLast(newMethodDeclaration, null);
					try {
						TextEdit sourceEdit = sourceRewriter.rewriteAST();
						ICompilationUnit sourceICompilationUnit = (ICompilationUnit)sourceCompilationUnit.getJavaElement();
						CompilationUnitChange change = compilationUnitChanges.get(sourceICompilationUnit);
						change.getEdit().addChild(sourceEdit);
						change.addTextEditGroup(new TextEditGroup("Create getter method for accessed field", new TextEdit[] {sourceEdit}));
					} catch (JavaModelException e) {
						e.printStackTrace();
					}
				}
			}
		}
	}
}
 

/**
 * Remove the field or variable declaration including the initializer.
 * @param rewrite the ast rewrite
 * @param reference the reference
 */
private void removeVariableReferences(ASTRewrite rewrite, SimpleName reference) {
	ASTNode parent= reference.getParent();
	while (parent instanceof QualifiedName) {
		parent= parent.getParent();
	}
	if (parent instanceof FieldAccess) {
		parent= parent.getParent();
	}

	int nameParentType= parent.getNodeType();
	if (nameParentType == ASTNode.ASSIGNMENT) {
		Assignment assignment= (Assignment) parent;
		Expression rightHand= assignment.getRightHandSide();

		ASTNode assignParent= assignment.getParent();
		if (assignParent.getNodeType() == ASTNode.EXPRESSION_STATEMENT && rightHand.getNodeType() != ASTNode.ASSIGNMENT) {
			removeVariableWithInitializer(rewrite, rightHand, assignParent);
		}	else {
			rewrite.replace(assignment, rewrite.createCopyTarget(rightHand), null);
		}
	} else if (nameParentType == ASTNode.SINGLE_VARIABLE_DECLARATION) {
		rewrite.remove(parent, null);
	} else if (nameParentType == ASTNode.VARIABLE_DECLARATION_FRAGMENT) {
		VariableDeclarationFragment frag= (VariableDeclarationFragment) parent;
		ASTNode varDecl= frag.getParent();
		List<VariableDeclarationFragment> fragments;
		if (varDecl instanceof VariableDeclarationExpression) {
			fragments= ((VariableDeclarationExpression) varDecl).fragments();
		} else if (varDecl instanceof FieldDeclaration) {
			fragments= ((FieldDeclaration) varDecl).fragments();
		} else {
			fragments= ((VariableDeclarationStatement) varDecl).fragments();
		}
		if (fragments.size() == 1) {
			rewrite.remove(varDecl, null);
		} else {
			rewrite.remove(frag, null); // don't try to preserve
		}
	}
}
 

@Override
public boolean visit(VariableDeclarationFragment node) {
	if (node.getParent() instanceof FieldDeclaration || node.getInitializer() != null)
		addWrite(node.getName(), node.resolveBinding());
	return true;
}
 

private FieldDeclaration performFieldRewrite(IType type, ParameterObjectFactory pof, RefactoringStatus status) throws CoreException {
	fBaseCURewrite= new CompilationUnitRewrite(type.getCompilationUnit());
	SimpleName name= (SimpleName) NodeFinder.perform(fBaseCURewrite.getRoot(), type.getNameRange());
	TypeDeclaration typeNode= (TypeDeclaration) ASTNodes.getParent(name, ASTNode.TYPE_DECLARATION);
	ASTRewrite rewrite= fBaseCURewrite.getASTRewrite();
	int modifier= Modifier.PRIVATE;
	TextEditGroup removeFieldGroup= fBaseCURewrite.createGroupDescription(RefactoringCoreMessages.ExtractClassRefactoring_group_remove_field);
	FieldDeclaration lastField= null;
	initializeDeclaration(typeNode);
	for (Iterator<FieldInfo> iter= fVariables.values().iterator(); iter.hasNext();) {
		FieldInfo pi= iter.next();
		if (isCreateField(pi)) {
			VariableDeclarationFragment vdf= pi.declaration;
			FieldDeclaration parent= (FieldDeclaration) vdf.getParent();
			if (lastField == null)
				lastField= parent;
			else if (lastField.getStartPosition() < parent.getStartPosition())
				lastField= parent;

			ListRewrite listRewrite= rewrite.getListRewrite(parent, FieldDeclaration.FRAGMENTS_PROPERTY);
			removeNode(vdf, removeFieldGroup, fBaseCURewrite);
			if (listRewrite.getRewrittenList().size() == 0) {
				removeNode(parent, removeFieldGroup, fBaseCURewrite);
			}

			if (fDescriptor.isCreateTopLevel()) {
				IVariableBinding binding= vdf.resolveBinding();
				ITypeRoot typeRoot= fBaseCURewrite.getCu();
				if (binding == null || binding.getType() == null){
					status.addFatalError(Messages.format(RefactoringCoreMessages.ExtractClassRefactoring_fatal_error_cannot_resolve_binding, BasicElementLabels.getJavaElementName(pi.name)), JavaStatusContext.create(typeRoot, vdf));
				} else {
					ITypeBinding typeBinding= binding.getType();
					if (Modifier.isPrivate(typeBinding.getModifiers())){
						status.addError(Messages.format(RefactoringCoreMessages.ExtractClassRefactoring_error_referencing_private_class, BasicElementLabels.getJavaElementName(typeBinding.getName())), JavaStatusContext.create(typeRoot, vdf));
					} else if (Modifier.isProtected(typeBinding.getModifiers())){
						ITypeBinding declaringClass= typeBinding.getDeclaringClass();
						if (declaringClass != null) {
							IPackageBinding package1= declaringClass.getPackage();
							if (package1 != null && !fDescriptor.getPackage().equals(package1.getName())){
								status.addError(Messages.format(RefactoringCoreMessages.ExtractClassRefactoring_error_referencing_protected_class, new String[] {BasicElementLabels.getJavaElementName(typeBinding.getName()), BasicElementLabels.getJavaElementName(fDescriptor.getPackage())}), JavaStatusContext.create(typeRoot, vdf));
							}
						}
					}
				}
			}
			Expression initializer= vdf.getInitializer();
			if (initializer != null)
				pi.initializer= initializer;
			int modifiers= parent.getModifiers();
			if (!MemberVisibilityAdjustor.hasLowerVisibility(modifiers, modifier)){
				modifier= modifiers;
			}
		}
	}
	FieldDeclaration fieldDeclaration= createParameterObjectField(pof, typeNode, modifier);
	ListRewrite bodyDeclList= rewrite.getListRewrite(typeNode, TypeDeclaration.BODY_DECLARATIONS_PROPERTY);
	if (lastField != null)
		bodyDeclList.insertAfter(fieldDeclaration, lastField, null);
	else
		bodyDeclList.insertFirst(fieldDeclaration, null);
	return fieldDeclaration;
}
 

private ASTRewrite doAddField(ASTRewrite rewrite, ASTNode nodeToAssign, ITypeBinding typeBinding, int index) {
	boolean isParamToField= nodeToAssign.getNodeType() == ASTNode.SINGLE_VARIABLE_DECLARATION;

	ASTNode newTypeDecl= ASTResolving.findParentType(nodeToAssign);
	if (newTypeDecl == null) {
		return null;
	}

	Expression expression= isParamToField ? ((SingleVariableDeclaration) nodeToAssign).getName() : ((ExpressionStatement) nodeToAssign).getExpression();

	AST ast= newTypeDecl.getAST();

	createImportRewrite((CompilationUnit) nodeToAssign.getRoot());

	BodyDeclaration bodyDecl= ASTResolving.findParentBodyDeclaration(nodeToAssign);
	Block body;
	if (bodyDecl instanceof MethodDeclaration) {
		body= ((MethodDeclaration) bodyDecl).getBody();
	} else if (bodyDecl instanceof Initializer) {
		body= ((Initializer) bodyDecl).getBody();
	} else {
		return null;
	}

	IJavaProject project= getCompilationUnit().getJavaProject();
	boolean isAnonymous= newTypeDecl.getNodeType() == ASTNode.ANONYMOUS_CLASS_DECLARATION;
	boolean isStatic= Modifier.isStatic(bodyDecl.getModifiers()) && !isAnonymous;
	int modifiers= Modifier.PRIVATE;
	if (isStatic) {
		modifiers |= Modifier.STATIC;
	}

	VariableDeclarationFragment newDeclFrag= addFieldDeclaration(rewrite, newTypeDecl, modifiers, expression, nodeToAssign, typeBinding, index);
	String varName= newDeclFrag.getName().getIdentifier();

	Assignment assignment= ast.newAssignment();
	assignment.setRightHandSide((Expression) rewrite.createCopyTarget(expression));

	boolean needsThis= StubUtility.useThisForFieldAccess(project);
	if (isParamToField) {
		needsThis |= varName.equals(((SimpleName) expression).getIdentifier());
	}

	SimpleName accessName= ast.newSimpleName(varName);
	if (needsThis) {
		FieldAccess fieldAccess= ast.newFieldAccess();
		fieldAccess.setName(accessName);
		if (isStatic) {
			String typeName= ((AbstractTypeDeclaration) newTypeDecl).getName().getIdentifier();
			fieldAccess.setExpression(ast.newSimpleName(typeName));
		} else {
			fieldAccess.setExpression(ast.newThisExpression());
		}
		assignment.setLeftHandSide(fieldAccess);
	} else {
		assignment.setLeftHandSide(accessName);
	}

	ASTNode selectionNode;
	if (isParamToField) {
		// assign parameter to field
		ExpressionStatement statement= ast.newExpressionStatement(assignment);
		int insertIdx= findAssignmentInsertIndex(body.statements(), nodeToAssign) + index;
		rewrite.getListRewrite(body, Block.STATEMENTS_PROPERTY).insertAt(statement, insertIdx, null);
		selectionNode= statement;
	} else {
		if (needsSemicolon(expression)) {
			rewrite.replace(expression, ast.newExpressionStatement(assignment), null);
		} else {
			rewrite.replace(expression, assignment, null);
		}
		selectionNode= nodeToAssign;
	}

	addLinkedPosition(rewrite.track(newDeclFrag.getName()), false, KEY_NAME + index);
	if (!isParamToField) {
		FieldDeclaration fieldDeclaration= (FieldDeclaration) newDeclFrag.getParent();
		addLinkedPosition(rewrite.track(fieldDeclaration.getType()), false, KEY_TYPE);
	}
	addLinkedPosition(rewrite.track(accessName), true, KEY_NAME + index);
	IVariableBinding variableBinding= newDeclFrag.resolveBinding();
	if (variableBinding != null) {
		SimpleName[] linkedNodes= LinkedNodeFinder.findByBinding(nodeToAssign.getRoot(), variableBinding);
		for (int i= 0; i < linkedNodes.length; i++) {
			addLinkedPosition(rewrite.track(linkedNodes[i]), false, KEY_NAME + index);
		}
	}
	setEndPosition(rewrite.track(selectionNode));

	return rewrite;
}