Java Code Examples for org.eclipse.jdt.core.dom.AST#newReturnStatement()

private Block createWithMethodBody(AST ast, BuilderField builderField) {
    String originalFieldName = builderField.getOriginalFieldName();
    String builderFieldName = builderField.getBuilderFieldName();

    Block newBlock = ast.newBlock();
    ReturnStatement builderReturnStatement = ast.newReturnStatement();
    builderReturnStatement.setExpression(ast.newThisExpression());

    Assignment newAssignment = ast.newAssignment();

    FieldAccess fieldAccess = ast.newFieldAccess();
    fieldAccess.setExpression(ast.newThisExpression());
    fieldAccess.setName(ast.newSimpleName(originalFieldName));
    newAssignment.setLeftHandSide(fieldAccess);
    newAssignment.setRightHandSide(ast.newSimpleName(builderFieldName));

    newBlock.statements().add(ast.newExpressionStatement(newAssignment));
    newBlock.statements().add(builderReturnStatement);
    return newBlock;
}
 

public Block createBody(AST ast, TypeDeclaration originalType) {
    ClassInstanceCreation newClassInstanceCreation = ast.newClassInstanceCreation();
    newClassInstanceCreation.setType(ast.newSimpleType(ast.newName(originalType.getName().toString())));
    newClassInstanceCreation.arguments().add(ast.newThisExpression());

    ReturnStatement statement = ast.newReturnStatement();
    statement.setExpression(newClassInstanceCreation);

    Block block = ast.newBlock();
    block.statements().add(statement);
    return block;
}
 

public Block createReturnBlock(AST ast, TypeDeclaration builderType, String withName, String parameterName) {
    Block builderMethodBlock = ast.newBlock();
    ReturnStatement returnStatement = ast.newReturnStatement();
    ClassInstanceCreation newClassInstanceCreation = ast.newClassInstanceCreation();
    newClassInstanceCreation.setType(ast.newSimpleType(ast.newName(builderType.getName().toString())));

    MethodInvocation withMethodInvocation = ast.newMethodInvocation();
    withMethodInvocation.setExpression(newClassInstanceCreation);
    withMethodInvocation.setName(ast.newSimpleName(withName));
    withMethodInvocation.arguments().add(ast.newSimpleName(parameterName));

    returnStatement.setExpression(withMethodInvocation);
    builderMethodBlock.statements().add(returnStatement);
    return builderMethodBlock;
}
 

public Block createReturnBlock(AST ast, TypeDeclaration builderType) {
    Block builderMethodBlock = ast.newBlock();
    ReturnStatement returnStatement = ast.newReturnStatement();
    ClassInstanceCreation newClassInstanceCreation = ast.newClassInstanceCreation();
    newClassInstanceCreation.setType(ast.newSimpleType(ast.newName(builderType.getName().toString())));
    returnStatement.setExpression(newClassInstanceCreation);
    builderMethodBlock.statements().add(returnStatement);
    return builderMethodBlock;
}
 

private static Block getBlockBodyForLambda(Expression bodyExpr, ITypeBinding returnTypeBinding, AST ast) {
	Statement statementInBlockBody;
	if (ast.resolveWellKnownType("void").isEqualTo(returnTypeBinding)) { //$NON-NLS-1$
		ExpressionStatement expressionStatement = ast.newExpressionStatement(bodyExpr);
		statementInBlockBody = expressionStatement;
	} else {
		ReturnStatement returnStatement = ast.newReturnStatement();
		returnStatement.setExpression(bodyExpr);
		statementInBlockBody = returnStatement;
	}
	Block blockBody = ast.newBlock();
	blockBody.statements().add(statementInBlockBody);
	return blockBody;
}
 

private void replaceSelectedExpressionWithTempDeclaration() throws CoreException {
	ASTRewrite rewrite = fCURewrite.getASTRewrite();
	Expression selectedExpression = getSelectedExpression().getAssociatedExpression(); // whole expression selected

	Expression initializer = (Expression) rewrite.createMoveTarget(selectedExpression);
	VariableDeclarationStatement tempDeclaration = createTempDeclaration(initializer);
	ASTNode replacement;

	ASTNode parent = selectedExpression.getParent();
	boolean isParentLambda = parent instanceof LambdaExpression;
	AST ast = rewrite.getAST();
	if (isParentLambda) {
		Block blockBody = ast.newBlock();
		blockBody.statements().add(tempDeclaration);
		if (!Bindings.isVoidType(((LambdaExpression) parent).resolveMethodBinding().getReturnType())) {
			List<VariableDeclarationFragment> fragments = tempDeclaration.fragments();
			SimpleName varName = fragments.get(0).getName();
			ReturnStatement returnStatement = ast.newReturnStatement();
			returnStatement.setExpression(ast.newSimpleName(varName.getIdentifier()));
			blockBody.statements().add(returnStatement);
		}
		replacement = blockBody;
	} else if (ASTNodes.isControlStatementBody(parent.getLocationInParent())) {
		Block block = ast.newBlock();
		block.statements().add(tempDeclaration);
		replacement = block;
	} else {
		replacement = tempDeclaration;
	}
	ASTNode replacee = isParentLambda || !ASTNodes.hasSemicolon((ExpressionStatement) parent, fCu) ? selectedExpression : parent;
	rewrite.replace(replacee, replacement, fCURewrite.createGroupDescription(RefactoringCoreMessages.ExtractTempRefactoring_declare_local_variable));
}
 

private MethodDeclaration createGetterMethod(AST ast, ASTRewrite rewriter, String lineDelimiter) throws CoreException {
	FieldDeclaration field = ASTNodes.getParent(fFieldDeclaration, FieldDeclaration.class);
	Type type = field.getType();
	MethodDeclaration result = ast.newMethodDeclaration();
	result.setName(ast.newSimpleName(fGetterName));
	result.modifiers().addAll(ASTNodeFactory.newModifiers(ast, createModifiers()));
	Type returnType = DimensionRewrite.copyTypeAndAddDimensions(type, fFieldDeclaration.extraDimensions(), rewriter);
	result.setReturnType2(returnType);

	Block block = ast.newBlock();
	result.setBody(block);

	String body = CodeGeneration.getGetterMethodBodyContent(fField.getCompilationUnit(), getTypeName(field.getParent()), fGetterName, fField.getElementName(), lineDelimiter);
	if (body != null) {
		body = body.substring(0, body.lastIndexOf(lineDelimiter));
		ASTNode getterNode = rewriter.createStringPlaceholder(body, ASTNode.BLOCK);
		block.statements().add(getterNode);
	} else {
		ReturnStatement rs = ast.newReturnStatement();
		rs.setExpression(ast.newSimpleName(fField.getElementName()));
		block.statements().add(rs);
	}
	if (fGenerateJavadoc) {
		String string = CodeGeneration.getGetterComment(fField.getCompilationUnit(), getTypeName(field.getParent()), fGetterName, fField.getElementName(), ASTNodes.asString(type), StubUtility.getBaseName(fField), lineDelimiter);
		if (string != null) {
			Javadoc javadoc = (Javadoc) fRewriter.createStringPlaceholder(string, ASTNode.JAVADOC);
			result.setJavadoc(javadoc);
		}
	}
	return result;
}
 

private Block createRunMethodBody(ASTRewrite rewrite, ClassInstanceCreation classLoaderCreation) {
    AST ast = rewrite.getAST();

    Block methodBody = ast.newBlock();
    ReturnStatement returnStatement = ast.newReturnStatement();
    List<Statement> statements = checkedList(methodBody.statements());

    statements.add(returnStatement);
    returnStatement.setExpression((ClassInstanceCreation) rewrite.createCopyTarget(classLoaderCreation));

    return methodBody;
}
 

private static Block createMethodStub(final MethodDeclaration method, final AST ast) {
	final Block body= ast.newBlock();
	final Expression expression= ASTNodeFactory.newDefaultExpression(ast, method.getReturnType2(), method.getExtraDimensions());
	if (expression != null) {
		final ReturnStatement returnStatement= ast.newReturnStatement();
		returnStatement.setExpression(expression);
		body.statements().add(returnStatement);
	}
	return body;
}
 

private MethodDeclaration getStub(ASTRewrite rewrite, ASTNode targetTypeDecl) throws CoreException {
	AST ast= targetTypeDecl.getAST();
	MethodDeclaration decl= ast.newMethodDeclaration();

	SimpleName newNameNode= getNewName(rewrite);

	decl.setConstructor(isConstructor());

	addNewModifiers(rewrite, targetTypeDecl, decl.modifiers());

	ArrayList<String> takenNames= new ArrayList<String>();
	addNewTypeParameters(rewrite, takenNames, decl.typeParameters());

	decl.setName(newNameNode);

	IVariableBinding[] declaredFields= fSenderBinding.getDeclaredFields();
	for (int i= 0; i < declaredFields.length; i++) { // avoid to take parameter names that are equal to field names
		takenNames.add(declaredFields[i].getName());
	}

	String bodyStatement= ""; //$NON-NLS-1$
	if (!isConstructor()) {
		Type returnType= getNewMethodType(rewrite);
		decl.setReturnType2(returnType);

		boolean isVoid= returnType instanceof PrimitiveType && PrimitiveType.VOID.equals(((PrimitiveType)returnType).getPrimitiveTypeCode());
		if (!fSenderBinding.isInterface() && !isVoid) {
			ReturnStatement returnStatement= ast.newReturnStatement();
			returnStatement.setExpression(ASTNodeFactory.newDefaultExpression(ast, returnType, 0));
			bodyStatement= ASTNodes.asFormattedString(returnStatement, 0, String.valueOf('\n'), getCompilationUnit().getJavaProject().getOptions(true));
		}
	}

	addNewParameters(rewrite, takenNames, decl.parameters());
	addNewExceptions(rewrite, decl.thrownExceptionTypes());

	Block body= null;
	if (!fSenderBinding.isInterface()) {
		body= ast.newBlock();
		String placeHolder= CodeGeneration.getMethodBodyContent(getCompilationUnit(), fSenderBinding.getName(), newNameNode.getIdentifier(), isConstructor(), bodyStatement, String.valueOf('\n'));
		if (placeHolder != null) {
			ReturnStatement todoNode= (ReturnStatement)rewrite.createStringPlaceholder(placeHolder, ASTNode.RETURN_STATEMENT);
			body.statements().add(todoNode);
		}
	}
	decl.setBody(body);

	CodeGenerationSettings settings= JavaPreferencesSettings.getCodeGenerationSettings(getCompilationUnit().getJavaProject());
	if (settings.createComments && !fSenderBinding.isAnonymous()) {
		String string= CodeGeneration.getMethodComment(getCompilationUnit(), fSenderBinding.getName(), decl, null, String.valueOf('\n'));
		if (string != null) {
			Javadoc javadoc= (Javadoc) rewrite.createStringPlaceholder(string, ASTNode.JAVADOC);
			decl.setJavadoc(javadoc);
		}
	}
	return decl;
}
 

private static ReturnStatement createReturnExpression(ASTRewrite rewrite, Expression expression) {
	AST ast= rewrite.getAST();
	ReturnStatement thenReturn= ast.newReturnStatement();
	thenReturn.setExpression((Expression) rewrite.createCopyTarget(expression));
	return thenReturn;
}
 

public static MethodDeclaration createDelegationStub(ICompilationUnit unit, ASTRewrite rewrite, ImportRewrite imports, ImportRewriteContext context, IMethodBinding delegate, IVariableBinding delegatingField, CodeGenerationSettings settings) throws CoreException {
	Assert.isNotNull(delegate);
	Assert.isNotNull(delegatingField);
	Assert.isNotNull(settings);

	AST ast= rewrite.getAST();

	MethodDeclaration decl= ast.newMethodDeclaration();
	decl.modifiers().addAll(ASTNodeFactory.newModifiers(ast, delegate.getModifiers() & ~Modifier.SYNCHRONIZED & ~Modifier.ABSTRACT & ~Modifier.NATIVE));

	decl.setName(ast.newSimpleName(delegate.getName()));
	decl.setConstructor(false);

	createTypeParameters(imports, context, ast, delegate, decl);

	decl.setReturnType2(imports.addImport(delegate.getReturnType(), ast, context));

	List<SingleVariableDeclaration> params= createParameters(unit.getJavaProject(), imports, context, ast, delegate, null, decl);

	createThrownExceptions(decl, delegate, imports, context, ast);

	Block body= ast.newBlock();
	decl.setBody(body);

	String delimiter= StubUtility.getLineDelimiterUsed(unit);

	Statement statement= null;
	MethodInvocation invocation= ast.newMethodInvocation();
	invocation.setName(ast.newSimpleName(delegate.getName()));
	List<Expression> arguments= invocation.arguments();
	for (int i= 0; i < params.size(); i++)
		arguments.add(ast.newSimpleName(params.get(i).getName().getIdentifier()));
	if (settings.useKeywordThis) {
		FieldAccess access= ast.newFieldAccess();
		access.setExpression(ast.newThisExpression());
		access.setName(ast.newSimpleName(delegatingField.getName()));
		invocation.setExpression(access);
	} else
		invocation.setExpression(ast.newSimpleName(delegatingField.getName()));
	if (delegate.getReturnType().isPrimitive() && delegate.getReturnType().getName().equals("void")) {//$NON-NLS-1$
		statement= ast.newExpressionStatement(invocation);
	} else {
		ReturnStatement returnStatement= ast.newReturnStatement();
		returnStatement.setExpression(invocation);
		statement= returnStatement;
	}
	body.statements().add(statement);

	ITypeBinding declaringType= delegatingField.getDeclaringClass();
	if (declaringType == null) { // can be null for
		return decl;
	}

	String qualifiedName= declaringType.getQualifiedName();
	IPackageBinding packageBinding= declaringType.getPackage();
	if (packageBinding != null) {
		if (packageBinding.getName().length() > 0 && qualifiedName.startsWith(packageBinding.getName()))
			qualifiedName= qualifiedName.substring(packageBinding.getName().length());
	}

	if (settings.createComments) {
		/*
		 * TODO: have API for delegate method comments This is an inlined
		 * version of
		 * {@link CodeGeneration#getMethodComment(ICompilationUnit, String, MethodDeclaration, IMethodBinding, String)}
		 */
		delegate= delegate.getMethodDeclaration();
		String declaringClassQualifiedName= delegate.getDeclaringClass().getQualifiedName();
		String linkToMethodName= delegate.getName();
		String[] parameterTypesQualifiedNames= StubUtility.getParameterTypeNamesForSeeTag(delegate);
		String string= StubUtility.getMethodComment(unit, qualifiedName, decl, delegate.isDeprecated(), linkToMethodName, declaringClassQualifiedName, parameterTypesQualifiedNames, true, delimiter);
		if (string != null) {
			Javadoc javadoc= (Javadoc) rewrite.createStringPlaceholder(string, ASTNode.JAVADOC);
			decl.setJavadoc(javadoc);
		}
	}
	return decl;
}
 

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();
					}
				}
			}
		}
	}
}
 

private MethodDeclaration createSetterMethod(AST ast, ASTRewrite rewriter, String lineDelimiter) throws CoreException {
	FieldDeclaration field= (FieldDeclaration)ASTNodes.getParent(fFieldDeclaration, FieldDeclaration.class);
	Type type= field.getType();
	MethodDeclaration result= ast.newMethodDeclaration();
	result.setName(ast.newSimpleName(fSetterName));
	result.modifiers().addAll(ASTNodeFactory.newModifiers(ast, createModifiers()));
	if (fSetterMustReturnValue) {
		result.setReturnType2((Type)rewriter.createCopyTarget(type));
	}
	SingleVariableDeclaration param= ast.newSingleVariableDeclaration();
	result.parameters().add(param);
	param.setName(ast.newSimpleName(fArgName));
	param.setType((Type)rewriter.createCopyTarget(type));
	List<Dimension> extraDimensions= DimensionRewrite.copyDimensions(fFieldDeclaration.extraDimensions(), rewriter);
	param.extraDimensions().addAll(extraDimensions);

	Block block= ast.newBlock();
	result.setBody(block);

	String fieldAccess= createFieldAccess();
	String body= CodeGeneration.getSetterMethodBodyContent(fField.getCompilationUnit(), getTypeName(field.getParent()), fSetterName, fieldAccess, fArgName, lineDelimiter);
	if (body != null) {
		ASTNode setterNode= rewriter.createStringPlaceholder(body, ASTNode.BLOCK);
		block.statements().add(setterNode);
	} else {
		Assignment ass= ast.newAssignment();
		ass.setLeftHandSide((Expression) rewriter.createStringPlaceholder(fieldAccess, ASTNode.QUALIFIED_NAME));
		ass.setRightHandSide(ast.newSimpleName(fArgName));
		block.statements().add(ass);
	}
       if (fSetterMustReturnValue) {
       	ReturnStatement rs= ast.newReturnStatement();
       	rs.setExpression(ast.newSimpleName(fArgName));
       	block.statements().add(rs);
       }
       if (fGenerateJavadoc) {
		String string= CodeGeneration.getSetterComment(
			fField.getCompilationUnit() , getTypeName(field.getParent()), fSetterName,
			fField.getElementName(), ASTNodes.asString(type), fArgName,
			StubUtility.getBaseName(fField),
			lineDelimiter);
		if (string != null) {
			Javadoc javadoc= (Javadoc)fRewriter.createStringPlaceholder(string, ASTNode.JAVADOC);
			result.setJavadoc(javadoc);
		}
	}
	return result;
}
 

/**
 * Creates and returns a new MethodDeclaration that represents the factory method to be used in
 * place of direct calls to the constructor in question.
 * 
 * @param ast An AST used as a factory for various AST nodes
 * @param ctorBinding binding for the constructor being wrapped
 * @param unitRewriter the ASTRewrite to be used
 * @return the new method declaration
 * @throws CoreException if an exception occurs while accessing its corresponding resource
 */
private MethodDeclaration createFactoryMethod(AST ast, IMethodBinding ctorBinding, ASTRewrite unitRewriter) throws CoreException{
	MethodDeclaration		newMethod= ast.newMethodDeclaration();
	SimpleName				newMethodName= ast.newSimpleName(fNewMethodName);
	ClassInstanceCreation	newCtorCall= ast.newClassInstanceCreation();
	ReturnStatement			ret= ast.newReturnStatement();
	Block		body= ast.newBlock();
	List<Statement>		stmts= body.statements();
	String		retTypeName= ctorBinding.getName();

	createFactoryMethodSignature(ast, newMethod);

	newMethod.setName(newMethodName);
	newMethod.setBody(body);

	ITypeBinding declaringClass= fCtorBinding.getDeclaringClass();
	ITypeBinding[] ctorOwnerTypeParameters= declaringClass.getTypeParameters();

	setMethodReturnType(newMethod, retTypeName, ctorOwnerTypeParameters, ast);

	newMethod.modifiers().addAll(ASTNodeFactory.newModifiers(ast, Modifier.STATIC | Modifier.PUBLIC));

	setCtorTypeArguments(newCtorCall, retTypeName, ctorOwnerTypeParameters, ast);

	createFactoryMethodConstructorArgs(ast, newCtorCall);

	if (Modifier.isAbstract(declaringClass.getModifiers())) {
		AnonymousClassDeclaration decl= ast.newAnonymousClassDeclaration();
		IMethodBinding[] unimplementedMethods= getUnimplementedMethods(declaringClass);
		CodeGenerationSettings settings= JavaPreferencesSettings.getCodeGenerationSettings(fCUHandle.getJavaProject());
		ImportRewriteContext context= new ContextSensitiveImportRewriteContext(fFactoryCU, decl.getStartPosition(), fImportRewriter);
		for (int i= 0; i < unimplementedMethods.length; i++) {
			IMethodBinding unImplementedMethod= unimplementedMethods[i];
			MethodDeclaration newMethodDecl= StubUtility2.createImplementationStub(fCUHandle, unitRewriter, fImportRewriter, context, unImplementedMethod, unImplementedMethod.getDeclaringClass()
					.getName(), settings, false);
			decl.bodyDeclarations().add(newMethodDecl);
		}
		newCtorCall.setAnonymousClassDeclaration(decl);
	}

	ret.setExpression(newCtorCall);
	stmts.add(ret);

	return newMethod;
}
 

@Override
protected ASTRewrite getRewrite() throws CoreException {
	CompilationUnit astRoot = ASTResolving.findParentCompilationUnit(fNode);
	ASTNode boundNode = astRoot.findDeclaringNode(fBinding);
	ASTNode declNode = null;

	if (boundNode != null) {
		declNode = boundNode; // is same CU
	} else {
		//setSelectionDescription(selectionDescription);
		CompilationUnit newRoot = ASTResolving.createQuickFixAST(getCompilationUnit(), null);
		declNode = newRoot.findDeclaringNode(fBinding.getKey());
	}
	if (declNode != null) {
		AST ast = declNode.getAST();
		ASTRewrite rewrite = ASTRewrite.create(ast);

		if (declNode.getNodeType() == ASTNode.VARIABLE_DECLARATION_FRAGMENT) {
			VariableDeclarationFragment fragment = (VariableDeclarationFragment) declNode;
			ASTNode parent = declNode.getParent();
			if (parent instanceof FieldDeclaration) {
				FieldDeclaration fieldDecl = (FieldDeclaration) parent;
				if (fieldDecl.fragments().size() > 1 && (fieldDecl.getParent() instanceof AbstractTypeDeclaration)) { // split
					VariableDeclarationRewrite.rewriteModifiers(fieldDecl, new VariableDeclarationFragment[] { fragment }, fIncludedModifiers, fExcludedModifiers, rewrite, null);
					return rewrite;
				}
			} else if (parent instanceof VariableDeclarationStatement) {
				VariableDeclarationStatement varDecl = (VariableDeclarationStatement) parent;
				if (varDecl.fragments().size() > 1 && (varDecl.getParent() instanceof Block)) { // split
					VariableDeclarationRewrite.rewriteModifiers(varDecl, new VariableDeclarationFragment[] { fragment }, fIncludedModifiers, fExcludedModifiers, rewrite, null);
					return rewrite;
				}
			} else if (parent instanceof VariableDeclarationExpression) {
				// can't separate
			}
			declNode = parent;
		} else if (declNode.getNodeType() == ASTNode.METHOD_DECLARATION) {
			MethodDeclaration methodDecl = (MethodDeclaration) declNode;
			if (!methodDecl.isConstructor()) {
				IMethodBinding methodBinding = methodDecl.resolveBinding();
				if (methodDecl.getBody() == null && methodBinding != null && Modifier.isAbstract(methodBinding.getModifiers()) && Modifier.isStatic(fIncludedModifiers)) {
					// add body
					ICompilationUnit unit = getCompilationUnit();
					String delimiter = unit.findRecommendedLineSeparator();
					String bodyStatement = ""; //$NON-NLS-1$

					Block body = ast.newBlock();
					rewrite.set(methodDecl, MethodDeclaration.BODY_PROPERTY, body, null);
					Type returnType = methodDecl.getReturnType2();
					if (returnType != null) {
						Expression expression = ASTNodeFactory.newDefaultExpression(ast, returnType, methodDecl.getExtraDimensions());
						if (expression != null) {
							ReturnStatement returnStatement = ast.newReturnStatement();
							returnStatement.setExpression(expression);
							bodyStatement = ASTNodes.asFormattedString(returnStatement, 0, delimiter, unit.getJavaProject().getOptions(true));
						}
					}
					String placeHolder = CodeGeneration.getMethodBodyContent(unit, methodBinding.getDeclaringClass().getName(), methodBinding.getName(), false, bodyStatement, delimiter);
					if (placeHolder != null) {
						ReturnStatement todoNode = (ReturnStatement) rewrite.createStringPlaceholder(placeHolder, ASTNode.RETURN_STATEMENT);
						body.statements().add(todoNode);
					}
				}
			}
		}
		ModifierRewrite listRewrite = ModifierRewrite.create(rewrite, declNode);
		PositionInformation trackedDeclNode = listRewrite.setModifiers(fIncludedModifiers, fExcludedModifiers, null);

		LinkedProposalPositionGroupCore positionGroup = new LinkedProposalPositionGroupCore("group"); //$NON-NLS-1$
		positionGroup.addPosition(trackedDeclNode);
		getLinkedProposalModel().addPositionGroup(positionGroup);

		if (boundNode != null) {
			// only set end position if in same CU
			setEndPosition(rewrite.track(fNode));
		}
		return rewrite;
	}
	return null;
}
 

private MethodDeclaration getStub(ASTRewrite rewrite, ASTNode targetTypeDecl) throws CoreException {
	ImportRewriteContext context=new ContextSensitiveImportRewriteContext(targetTypeDecl, getImportRewrite());

	AST ast= targetTypeDecl.getAST();
	MethodDeclaration decl= ast.newMethodDeclaration();

	SimpleName newNameNode= getNewName(rewrite);

	decl.setConstructor(isConstructor());

	addNewModifiers(rewrite, targetTypeDecl, decl.modifiers());

	ArrayList<String> takenNames= new ArrayList<>();
	addNewTypeParameters(rewrite, takenNames, decl.typeParameters(), context);

	decl.setName(newNameNode);

	IVariableBinding[] declaredFields= fSenderBinding.getDeclaredFields();
	for (int i= 0; i < declaredFields.length; i++) { // avoid to take parameter names that are equal to field names
		takenNames.add(declaredFields[i].getName());
	}

	String bodyStatement= ""; //$NON-NLS-1$
	boolean isAbstractMethod= Modifier.isAbstract(decl.getModifiers()) || (fSenderBinding.isInterface() && !Modifier.isStatic(decl.getModifiers()) && !Modifier.isDefault(decl.getModifiers()));
	if (!isConstructor()) {
		Type returnType= getNewMethodType(rewrite, context);
		decl.setReturnType2(returnType);

		boolean isVoid= returnType instanceof PrimitiveType && PrimitiveType.VOID.equals(((PrimitiveType)returnType).getPrimitiveTypeCode());
		if (!isAbstractMethod && !isVoid) {
			ReturnStatement returnStatement= ast.newReturnStatement();
			returnStatement.setExpression(ASTNodeFactory.newDefaultExpression(ast, returnType, 0));
			bodyStatement= ASTNodes.asFormattedString(returnStatement, 0, String.valueOf('\n'), getCompilationUnit().getJavaProject().getOptions(true));
		}
	}

	addNewParameters(rewrite, takenNames, decl.parameters(), context);
	addNewExceptions(rewrite, decl.thrownExceptionTypes(), context);

	Block body= null;
	if (!isAbstractMethod && !Flags.isAbstract(decl.getModifiers())) {
		body= ast.newBlock();
		if (bodyStatement.length() > 0) {
			ReturnStatement todoNode = (ReturnStatement) rewrite.createStringPlaceholder(bodyStatement,
					ASTNode.RETURN_STATEMENT);
			body.statements().add(todoNode);
		}
	}
	decl.setBody(body);

	CodeGenerationSettings settings = PreferenceManager.getCodeGenerationSettings(getCompilationUnit().getResource());
	if (settings.createComments && !fSenderBinding.isAnonymous()) {
		String string = CodeGeneration.getMethodComment(getCompilationUnit(), fSenderBinding.getName(), decl, null,
				String.valueOf('\n'));
		if (string != null) {
			Javadoc javadoc= (Javadoc) rewrite.createStringPlaceholder(string, ASTNode.JAVADOC);
			decl.setJavadoc(javadoc);
		}
	}
	return decl;
}
 

private MethodDeclaration createSetterMethod(AST ast, ASTRewrite rewriter, String lineDelimiter) throws CoreException {
	FieldDeclaration field = ASTNodes.getParent(fFieldDeclaration, FieldDeclaration.class);
	Type type = field.getType();
	MethodDeclaration result = ast.newMethodDeclaration();
	result.setName(ast.newSimpleName(fSetterName));
	result.modifiers().addAll(ASTNodeFactory.newModifiers(ast, createModifiers()));
	if (fSetterMustReturnValue) {
		result.setReturnType2((Type) rewriter.createCopyTarget(type));
	}
	SingleVariableDeclaration param = ast.newSingleVariableDeclaration();
	result.parameters().add(param);
	param.setName(ast.newSimpleName(fArgName));
	param.setType((Type) rewriter.createCopyTarget(type));
	List<Dimension> extraDimensions = DimensionRewrite.copyDimensions(fFieldDeclaration.extraDimensions(), rewriter);
	param.extraDimensions().addAll(extraDimensions);

	Block block = ast.newBlock();
	result.setBody(block);

	String fieldAccess = createFieldAccess();
	String body = CodeGeneration.getSetterMethodBodyContent(fField.getCompilationUnit(), getTypeName(field.getParent()), fSetterName, fieldAccess, fArgName, lineDelimiter);
	if (body != null) {
		body = body.substring(0, body.lastIndexOf(lineDelimiter));
		ASTNode setterNode = rewriter.createStringPlaceholder(body, ASTNode.BLOCK);
		block.statements().add(setterNode);
	} else {
		Assignment ass = ast.newAssignment();
		ass.setLeftHandSide((Expression) rewriter.createStringPlaceholder(fieldAccess, ASTNode.QUALIFIED_NAME));
		ass.setRightHandSide(ast.newSimpleName(fArgName));
		block.statements().add(ass);
	}
	if (fSetterMustReturnValue) {
		ReturnStatement rs = ast.newReturnStatement();
		rs.setExpression(ast.newSimpleName(fArgName));
		block.statements().add(rs);
	}
	if (fGenerateJavadoc) {
		String string = CodeGeneration.getSetterComment(fField.getCompilationUnit(), getTypeName(field.getParent()), fSetterName, fField.getElementName(), ASTNodes.asString(type), fArgName, StubUtility.getBaseName(fField),
				lineDelimiter);
		if (string != null) {
			Javadoc javadoc = (Javadoc) fRewriter.createStringPlaceholder(string, ASTNode.JAVADOC);
			result.setJavadoc(javadoc);
		}
	}
	return result;
}
 

private ReturnStatement createReturnStatementWithInstantiation(AST ast, ClassInstanceCreation builderIntantiation) {
    ReturnStatement returnStatement = ast.newReturnStatement();
    returnStatement.setExpression(builderIntantiation);
    return returnStatement;
}
 

@Override
protected ASTRewrite getRewrite() throws CoreException {
	CompilationUnit astRoot= ASTResolving.findParentCompilationUnit(fNode);
	ASTNode boundNode= astRoot.findDeclaringNode(fBinding);
	ASTNode declNode= null;

	if (boundNode != null) {
		declNode= boundNode; // is same CU
	} else {
		//setSelectionDescription(selectionDescription);
		CompilationUnit newRoot= ASTResolving.createQuickFixAST(getCompilationUnit(), null);
		declNode= newRoot.findDeclaringNode(fBinding.getKey());
	}
	if (declNode != null) {
		AST ast= declNode.getAST();
		ASTRewrite rewrite= ASTRewrite.create(ast);

		if (declNode.getNodeType() == ASTNode.VARIABLE_DECLARATION_FRAGMENT) {
			VariableDeclarationFragment fragment= (VariableDeclarationFragment)declNode;
			ASTNode parent= declNode.getParent();
			if (parent instanceof FieldDeclaration) {
				FieldDeclaration fieldDecl= (FieldDeclaration) parent;
				if (fieldDecl.fragments().size() > 1 && (fieldDecl.getParent() instanceof AbstractTypeDeclaration)) { // split
					VariableDeclarationRewrite.rewriteModifiers(fieldDecl, new VariableDeclarationFragment[] {fragment}, fIncludedModifiers, fExcludedModifiers, rewrite, null);
					return rewrite;
				}
			} else if (parent instanceof VariableDeclarationStatement) {
				VariableDeclarationStatement varDecl= (VariableDeclarationStatement) parent;
				if (varDecl.fragments().size() > 1 && (varDecl.getParent() instanceof Block)) { // split
					VariableDeclarationRewrite.rewriteModifiers(varDecl, new VariableDeclarationFragment[] {fragment}, fIncludedModifiers, fExcludedModifiers, rewrite, null);
					return rewrite;
				}
			} else if (parent instanceof VariableDeclarationExpression) {
				// can't separate
			}
			declNode= parent;
		} else if (declNode.getNodeType() == ASTNode.METHOD_DECLARATION) {
			MethodDeclaration methodDecl= (MethodDeclaration) declNode;
			if (!methodDecl.isConstructor()) {
				IMethodBinding methodBinding= methodDecl.resolveBinding();
				if (methodDecl.getBody() == null && methodBinding != null && Modifier.isAbstract(methodBinding.getModifiers()) && Modifier.isStatic(fIncludedModifiers)) {
					// add body
					ICompilationUnit unit= getCompilationUnit();
					String delimiter= unit.findRecommendedLineSeparator();
					String bodyStatement= ""; //$NON-NLS-1$
					
					Block body= ast.newBlock();
					rewrite.set(methodDecl, MethodDeclaration.BODY_PROPERTY, body, null);
					Type returnType= methodDecl.getReturnType2();
					if (returnType != null) {
						Expression expression= ASTNodeFactory.newDefaultExpression(ast, returnType, methodDecl.getExtraDimensions());
						if (expression != null) {
							ReturnStatement returnStatement= ast.newReturnStatement();
							returnStatement.setExpression(expression);
							bodyStatement= ASTNodes.asFormattedString(returnStatement, 0, delimiter, unit.getJavaProject().getOptions(true));
						}
					}
					String placeHolder= CodeGeneration.getMethodBodyContent(unit, methodBinding.getDeclaringClass().getName(), methodBinding.getName(), false, bodyStatement, delimiter);
					if (placeHolder != null) {
						ReturnStatement todoNode= (ReturnStatement) rewrite.createStringPlaceholder(placeHolder, ASTNode.RETURN_STATEMENT);
						body.statements().add(todoNode);
					}
				}
			}
		}
		ModifierRewrite listRewrite= ModifierRewrite.create(rewrite, declNode);
		PositionInformation trackedDeclNode= listRewrite.setModifiers(fIncludedModifiers, fExcludedModifiers, null);
		
		LinkedProposalPositionGroup positionGroup= new LinkedProposalPositionGroup("group"); //$NON-NLS-1$
		positionGroup.addPosition(trackedDeclNode);
		getLinkedProposalModel().addPositionGroup(positionGroup);
		
		if (boundNode != null) {
			// only set end position if in same CU
			setEndPosition(rewrite.track(fNode));
		}
		return rewrite;
	}
	return null;
}