Java Code Examples for org.eclipse.jdt.core.dom.rewrite.ImportRewrite#addImport()

/**
 * {@inheritDoc}
 */
@Override
public void rewriteAST(CompilationUnitRewrite cuRewrite, LinkedProposalModel model) throws CoreException {
	TextEditGroup group= createTextEditGroup(FixMessages.TypeParametersFix_insert_inferred_type_arguments_description, cuRewrite);

	ASTRewrite rewrite= cuRewrite.getASTRewrite();
	ImportRewrite importRewrite= cuRewrite.getImportRewrite();
	AST ast= cuRewrite.getRoot().getAST();

	for (int i= 0; i < fCreatedTypes.length; i++) {
		ParameterizedType createdType= fCreatedTypes[i];

		ITypeBinding[] typeArguments= createdType.resolveBinding().getTypeArguments();
		ContextSensitiveImportRewriteContext importContext= new ContextSensitiveImportRewriteContext(cuRewrite.getRoot(), createdType.getStartPosition(), importRewrite);

		ListRewrite argumentsRewrite= rewrite.getListRewrite(createdType, ParameterizedType.TYPE_ARGUMENTS_PROPERTY);
		for (int j= 0; j < typeArguments.length; j++) {
			ITypeBinding typeArgument= typeArguments[j];
			Type argumentNode= importRewrite.addImport(typeArgument, ast, importContext);
			argumentsRewrite.insertLast(argumentNode, group);
		}
	}
}
 

private void updateTypeReferences(ASTRewrite rewriter, CallContext context) {
	ImportRewrite importer= context.importer;
	for (Iterator<SimpleName> iter= fAnalyzer.getTypesToImport().iterator(); iter.hasNext();) {
		Name element= iter.next();
		ITypeBinding binding= ASTNodes.getTypeBinding(element);
		if (binding != null && !binding.isLocal()) {
			// We have collected names not types. So we have to import
			// the declaration type if we reference a parameterized type
			// since we have an entry for every name node (e.g. one for
			// Vector and one for Integer in Vector<Integer>.
			if (binding.isParameterizedType()) {
				binding= binding.getTypeDeclaration();
			}
			String s= importer.addImport(binding);
			if (!ASTNodes.asString(element).equals(s)) {
				rewriter.replace(element, rewriter.createStringPlaceholder(s, ASTNode.SIMPLE_NAME), null);
			}
		}
	}
}
 

/**
 * Returns the new type node representing the return type of <code>lambdaExpression</code>
 * including the extra dimensions.
 * 
 * @param lambdaExpression the lambda expression
 * @param ast the AST to create the return type with
 * @param importRewrite the import rewrite to use, or <code>null</code>
 * @param context the import rewrite context, or <code>null</code>
 * @return a new type node created with the given AST representing the return type of
 *         <code>lambdaExpression</code>
 * 
 * @since 3.10
 */
public static Type newReturnType(LambdaExpression lambdaExpression, AST ast, ImportRewrite importRewrite, ImportRewriteContext context) {
	IMethodBinding method= lambdaExpression.resolveMethodBinding();
	if (method != null) {
		ITypeBinding returnTypeBinding= method.getReturnType();
		if (importRewrite != null) {
			return importRewrite.addImport(returnTypeBinding, ast);
		} else {
			String qualifiedName= returnTypeBinding.getQualifiedName();
			if (qualifiedName.length() > 0) {
				return newType(ast, qualifiedName);
			}
		}
	}
	// fall-back
	return ast.newSimpleType(ast.newSimpleName("Object")); //$NON-NLS-1$
}
 

private void addImportToSourcePackageTypes(ICompilationUnit movedUnit, IProgressMonitor pm) throws CoreException{
	List<ICompilationUnit> cuList= Arrays.asList(fCus);
	IType[] allCuTypes= movedUnit.getAllTypes();
	IType[] referencedTypes= ReferenceFinderUtil.getTypesReferencedIn(allCuTypes, pm);
	ImportRewrite importEdit= getImportRewrite(movedUnit);
	importEdit.setFilterImplicitImports(false);
	IPackageFragment srcPack= (IPackageFragment)movedUnit.getParent();
	for (int i= 0; i < referencedTypes.length; i++) {
			IType iType= referencedTypes[i];
			if (! iType.exists())
				continue;
			if (!JavaModelUtil.isSamePackage(iType.getPackageFragment(), srcPack))
				continue;
			if (cuList.contains(iType.getCompilationUnit()))
				continue;
			importEdit.addImport(iType.getFullyQualifiedName('.'));
	}
}
 

private static void addImports(CompilationUnit root, ICompilationUnit unit, String[] favourites, ImportRewrite importRewrite, AST ast, ASTRewrite astRewrite, SimpleName node, boolean isMethod) throws JavaModelException {
	String name = node.getIdentifier();
	String[] imports = SimilarElementsRequestor.getStaticImportFavorites(unit, name, isMethod, favourites);
	if (imports.length > 1) {
		// See https://github.com/redhat-developer/vscode-java/issues/1472
		return;
	}
	for (int i = 0; i < imports.length; i++) {
		String curr = imports[i];
		String qualifiedTypeName = Signature.getQualifier(curr);
		String res = importRewrite.addStaticImport(qualifiedTypeName, name, isMethod, new ContextSensitiveImportRewriteContext(root, node.getStartPosition(), importRewrite));
		int dot = res.lastIndexOf('.');
		if (dot != -1) {
			String usedTypeName = importRewrite.addImport(qualifiedTypeName);
			Name newName = ast.newQualifiedName(ast.newName(usedTypeName), ast.newSimpleName(name));
			astRewrite.replace(node, newName, null);
		}
	}
}
 

/**
 * update a CompilationUnit's imports after changing the type of declarations
 * @param astRoot the AST
 * @param rootEdit the resulting edit
 * @return the type name to use
 * @throws CoreException
 */
private String updateImports(CompilationUnit astRoot, MultiTextEdit rootEdit) throws CoreException{
	ImportRewrite rewrite= StubUtility.createImportRewrite(astRoot, true);
	ContextSensitiveImportRewriteContext context= new ContextSensitiveImportRewriteContext(astRoot, fSelectionStart, rewrite);
	String typeName= rewrite.addImport(fSelectedType.getQualifiedName(), context);
	rootEdit.addChild(rewrite.rewriteImports(null));
	return typeName;
}
 

static CUCorrectionProposal createTypeRefChangeFullProposal(ICompilationUnit cu, ITypeBinding binding, ASTNode node, int relevance) {
	ASTRewrite rewrite= ASTRewrite.create(node.getAST());
	String label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_change_full_type_description, BindingLabelProvider.getBindingLabel(binding, JavaElementLabels.ALL_DEFAULT));
	Image image= JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_CHANGE);

	ASTRewriteCorrectionProposal proposal= new ASTRewriteCorrectionProposal(label, cu, rewrite, relevance, image);

	ImportRewrite imports= proposal.createImportRewrite((CompilationUnit) node.getRoot());
	Type type= imports.addImport(binding, node.getAST());

	rewrite.replace(node, type, null);
	return proposal;
}
 

private void addReferenceUpdates(TextChangeManager changeManager, ICompilationUnit movedUnit, IProgressMonitor pm, RefactoringStatus status) throws JavaModelException, CoreException {
	List<ICompilationUnit> cuList = Arrays.asList(fCus);
	SearchResultGroup[] references = getReferences(movedUnit, pm, status);
	for (int i = 0; i < references.length; i++) {
		SearchResultGroup searchResultGroup = references[i];
		ICompilationUnit referencingCu = searchResultGroup.getCompilationUnit();
		if (referencingCu == null) {
			continue;
		}

		boolean simpleReferencesNeedNewImport = simpleReferencesNeedNewImport(movedUnit, referencingCu, cuList);
		SearchMatch[] results = searchResultGroup.getSearchResults();
		for (int j = 0; j < results.length; j++) {
			// TODO: should update type references with results from addImport
			TypeReference reference = (TypeReference) results[j];
			if (reference.isImportDeclaration()) {
				ImportRewrite rewrite = getImportRewrite(referencingCu);
				IImportDeclaration importDecl = (IImportDeclaration) SearchUtils.getEnclosingJavaElement(results[j]);
				if (Flags.isStatic(importDecl.getFlags())) {
					rewrite.removeStaticImport(importDecl.getElementName());
					addStaticImport(movedUnit, importDecl, rewrite);
				} else {
					rewrite.removeImport(importDecl.getElementName());
					rewrite.addImport(createStringForNewImport(movedUnit, importDecl));
				}
			} else if (reference.isQualified()) {
				TextChange textChange = changeManager.get(referencingCu);
				String changeName = RefactoringCoreMessages.MoveCuUpdateCreator_update_references;
				TextEdit replaceEdit = new ReplaceEdit(reference.getOffset(), reference.getSimpleNameStart() - reference.getOffset(), fNewPackage);
				TextChangeCompatibility.addTextEdit(textChange, changeName, replaceEdit);
			} else if (simpleReferencesNeedNewImport) {
				ImportRewrite importEdit = getImportRewrite(referencingCu);
				String typeName = reference.getSimpleName();
				importEdit.addImport(getQualifiedType(fDestination.getElementName(), typeName));
			}
		}
	}
}
 

@Override
protected ASTRewrite getRewrite() throws CoreException {
	ASTNode boundNode= fAstRoot.findDeclaringNode(fBinding);
	ASTNode declNode= null;
	CompilationUnit newRoot= fAstRoot;
	if (boundNode != null) {
		declNode= boundNode; // is same CU
	} else {
		newRoot= ASTResolving.createQuickFixAST(getCompilationUnit(), null);
		declNode= newRoot.findDeclaringNode(fBinding.getKey());
	}
	ImportRewrite imports= createImportRewrite(newRoot);

	if (declNode instanceof TypeDeclaration) {
		AST ast= declNode.getAST();
		ASTRewrite rewrite= ASTRewrite.create(ast);

		ImportRewriteContext importRewriteContext= new ContextSensitiveImportRewriteContext(declNode, imports);
		Type newInterface= imports.addImport(fNewInterface, ast, importRewriteContext);
		ListRewrite listRewrite= rewrite.getListRewrite(declNode, TypeDeclaration.SUPER_INTERFACE_TYPES_PROPERTY);
		listRewrite.insertLast(newInterface, null);

		// set up linked mode
		final String KEY_TYPE= "type"; //$NON-NLS-1$
		addLinkedPosition(rewrite.track(newInterface), true, KEY_TYPE);
		return rewrite;
	}
	return null;
}
 

@Override
public TextEdit computeEdits(int offset, LinkedPosition position, char trigger, int stateMask, LinkedModeModel model) throws CoreException {
	ImportRewrite impRewrite= StubUtility.createImportRewrite(fCompilationUnit, true);
	String replaceString= impRewrite.addImport(fTypeProposal);

	MultiTextEdit composedEdit= new MultiTextEdit();
	composedEdit.addChild(new ReplaceEdit(position.getOffset(), position.getLength(), replaceString));
	composedEdit.addChild(impRewrite.rewriteImports(null));
	return composedEdit;
}
 

public MethodDeclaration createMethodDeclaration(IType clientBundle, ASTRewrite astRewrite,
    ImportRewrite importRewrite, boolean addComments) throws CoreException {
  AST ast = astRewrite.getAST();
  MethodDeclaration methodDecl = ast.newMethodDeclaration();

  // Method is named after the resource it accesses
  methodDecl.setName(ast.newSimpleName(getMethodName()));

  // Method return type is a ResourcePrototype subtype
  ITypeBinding resourceTypeBinding = JavaASTUtils.resolveType(clientBundle.getJavaProject(), getReturnTypeName());
  Type resourceType = importRewrite.addImport(resourceTypeBinding, ast);
  methodDecl.setReturnType2(resourceType);

  // Add @Source annotation if necessary
  String sourceAnnotationValue = getSourceAnnotationValue(clientBundle);
  if (sourceAnnotationValue != null) {
    // Build the annotation
    SingleMemberAnnotation sourceAnnotation = ast.newSingleMemberAnnotation();
    sourceAnnotation.setTypeName(ast.newName("Source"));
    StringLiteral annotationValue = ast.newStringLiteral();
    annotationValue.setLiteralValue(sourceAnnotationValue);
    sourceAnnotation.setValue(annotationValue);

    // Add the annotation to the method
    ChildListPropertyDescriptor modifiers = methodDecl.getModifiersProperty();
    ListRewrite modifiersRewriter = astRewrite.getListRewrite(methodDecl, modifiers);
    modifiersRewriter.insertFirst(sourceAnnotation, null);
  }

  return methodDecl;
}
 

private Type getConstantType() throws JavaModelException {
	if (fConstantTypeCache == null) {
		IExpressionFragment fragment= getSelectedExpression();
		ITypeBinding typeBinding= guessBindingForReference(fragment.getAssociatedExpression());
		AST ast= fCuRewrite.getAST();
		typeBinding= Bindings.normalizeForDeclarationUse(typeBinding, ast);
		ImportRewrite importRewrite= fCuRewrite.getImportRewrite();
		ImportRewriteContext context= new ContextSensitiveImportRewriteContext(fCuRewrite.getRoot(), fSelectionStart, importRewrite);
		fConstantTypeCache= importRewrite.addImport(typeBinding, ast, context);
	}
	return fConstantTypeCache;
}
 

static CompilationUnitChange createAddImportChange(ICompilationUnit cu, Name name, String fullyQualifiedName) throws CoreException {
	String[] args= { BasicElementLabels.getJavaElementName(Signature.getSimpleName(fullyQualifiedName)),
			BasicElementLabels.getJavaElementName(Signature.getQualifier(fullyQualifiedName)) };
	String label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_importtype_description, args);

	CompilationUnitChange cuChange= new CompilationUnitChange(label, cu);
	ImportRewrite importRewrite = CodeStyleConfiguration.createImportRewrite((CompilationUnit) name.getRoot(), true);
	importRewrite.addImport(fullyQualifiedName);
	cuChange.setEdit(importRewrite.rewriteImports(null));
	return cuChange;
}
 

private void addExceptionsToNewConstructor(MethodDeclaration newConstructor, ImportRewrite importRewrite) {
     IMethodBinding constructorBinding= getSuperConstructorBinding();
     if (constructorBinding == null)
         return;
     ITypeBinding[] exceptions= constructorBinding.getExceptionTypes();
     for (int i= 0; i < exceptions.length; i++) {
Type exceptionType= importRewrite.addImport(exceptions[i], fAnonymousInnerClassNode.getAST());
newConstructor.thrownExceptionTypes().add(exceptionType);
     }
 }
 

private void addImportsToAccessorCu(ICompilationUnit newCu, IProgressMonitor pm) throws CoreException {
	ImportRewrite is= StubUtility.createImportRewrite(newCu, true);
	if (fIsEclipseNLS) {
		is.addImport("org.eclipse.osgi.util.NLS"); //$NON-NLS-1$
	} else {
		is.addImport("java.util.MissingResourceException"); //$NON-NLS-1$
		is.addImport("java.util.ResourceBundle"); //$NON-NLS-1$
	}
	TextEdit edit= is.rewriteImports(pm);
	JavaModelUtil.applyEdit(newCu, edit, false, null);
}
 

public static void addDeprecatedFieldsToMethodsProposals(IInvocationContext context, IProblemLocation problem, Collection<ICommandAccess> proposals) {
	ASTNode selectedNode= problem.getCoveringNode(context.getASTRoot());
	if (selectedNode instanceof Name) {
		IBinding binding= ((Name) selectedNode).resolveBinding();
		if (binding instanceof IVariableBinding) {
			IVariableBinding variableBinding= (IVariableBinding) binding;
			if (variableBinding.isField()) {
				String qualifiedName= variableBinding.getDeclaringClass().getTypeDeclaration().getQualifiedName();
				String fieldName= variableBinding.getName();
				String[] methodName= getMethod(JavaModelUtil.concatenateName(qualifiedName, fieldName));
				if (methodName != null) {
					AST ast= selectedNode.getAST();
					ASTRewrite astRewrite= ASTRewrite.create(ast);
					ImportRewrite importRewrite= StubUtility.createImportRewrite(context.getASTRoot(), true);

					MethodInvocation method= ast.newMethodInvocation();
					String qfn= importRewrite.addImport(methodName[0]);
					method.setExpression(ast.newName(qfn));
					method.setName(ast.newSimpleName(methodName[1]));
					ASTNode parent= selectedNode.getParent();
					ICompilationUnit cu= context.getCompilationUnit();
					// add explicit type arguments if necessary (for 1.8 and later, we're optimistic that inference just works):
					if (Invocations.isInvocationWithArguments(parent) && !JavaModelUtil.is18OrHigher(cu.getJavaProject())) {
						IMethodBinding methodBinding= Invocations.resolveBinding(parent);
						if (methodBinding != null) {
							ITypeBinding[] parameterTypes= methodBinding.getParameterTypes();
							int i= Invocations.getArguments(parent).indexOf(selectedNode);
							if (parameterTypes.length >= i && parameterTypes[i].isParameterizedType()) {
								ITypeBinding[] typeArguments= parameterTypes[i].getTypeArguments();
								for (int j= 0; j < typeArguments.length; j++) {
									ITypeBinding typeArgument= typeArguments[j];
									typeArgument= Bindings.normalizeForDeclarationUse(typeArgument, ast);
									if (! TypeRules.isJavaLangObject(typeArgument)) {
										// add all type arguments if at least one is found to be necessary:
										List<Type> typeArgumentsList= method.typeArguments();
										for (int k= 0; k < typeArguments.length; k++) {
											typeArgument= typeArguments[k];
											typeArgument= Bindings.normalizeForDeclarationUse(typeArgument, ast);
											typeArgumentsList.add(importRewrite.addImport(typeArgument, ast));
										}
										break;
									}
								}
							}
						}
					}
					
					astRewrite.replace(selectedNode, method, null);

					String label= Messages.format(CorrectionMessages.LocalCorrectionsSubProcessor_replacefieldaccesswithmethod_description, BasicElementLabels.getJavaElementName(ASTNodes.asString(method)));
					Image image= JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_CHANGE);
					ASTRewriteCorrectionProposal proposal= new ASTRewriteCorrectionProposal(label, cu, astRewrite, IProposalRelevance.REPLACE_FIELD_ACCESS_WITH_METHOD, image);
					proposal.setImportRewrite(importRewrite);
					proposals.add(proposal);
				}
			}
		}
	}
}
 

private static void addQualifierToOuterProposal(IInvocationContext context, MethodInvocation invocationNode, IMethodBinding binding, Collection<ICommandAccess> proposals) {
	ITypeBinding declaringType= binding.getDeclaringClass();
	ITypeBinding parentType= Bindings.getBindingOfParentType(invocationNode);
	ITypeBinding currType= parentType;

	boolean isInstanceMethod= !Modifier.isStatic(binding.getModifiers());

	while (currType != null && !Bindings.isSuperType(declaringType, currType)) {
		if (isInstanceMethod && Modifier.isStatic(currType.getModifiers())) {
			return;
		}
		currType= currType.getDeclaringClass();
	}
	if (currType == null || currType == parentType) {
		return;
	}

	ASTRewrite rewrite= ASTRewrite.create(invocationNode.getAST());

	String label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_changetoouter_description, ASTResolving.getTypeSignature(currType));
	Image image= JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_CHANGE);
	ASTRewriteCorrectionProposal proposal= new ASTRewriteCorrectionProposal(label, context.getCompilationUnit(), rewrite, IProposalRelevance.QUALIFY_WITH_ENCLOSING_TYPE, image);

	ImportRewrite imports= proposal.createImportRewrite(context.getASTRoot());
	ImportRewriteContext importRewriteContext= new ContextSensitiveImportRewriteContext(invocationNode, imports);
	AST ast= invocationNode.getAST();

	String qualifier= imports.addImport(currType, importRewriteContext);
	Name name= ASTNodeFactory.newName(ast, qualifier);

	Expression newExpression;
	if (isInstanceMethod) {
		ThisExpression expr= ast.newThisExpression();
		expr.setQualifier(name);
		newExpression= expr;
	} else {
		newExpression= name;
	}

	rewrite.set(invocationNode, MethodInvocation.EXPRESSION_PROPERTY, newExpression, null);

	proposals.add(proposal);
}
 

/**
		 * {@inheritDoc}
		 */
		@Override
		public void rewriteAST(CompilationUnitRewrite cuRewrite, LinkedProposalModel model) throws CoreException {

			ASTRewrite rewrite= cuRewrite.getASTRewrite();
			ImportRemover importRemover= cuRewrite.getImportRemover();
			AST ast= rewrite.getAST();

			HashMap<ClassInstanceCreation, HashSet<String>> cicToNewNames= new HashMap<ClassInstanceCreation, HashSet<String>>();
			for (int i= 0; i < fExpressions.size(); i++) {
				ClassInstanceCreation classInstanceCreation= fExpressions.get(i);
				TextEditGroup group= createTextEditGroup(FixMessages.LambdaExpressionsFix_convert_to_lambda_expression, cuRewrite);

				AnonymousClassDeclaration anonymTypeDecl= classInstanceCreation.getAnonymousClassDeclaration();
				List<BodyDeclaration> bodyDeclarations= anonymTypeDecl.bodyDeclarations();

				Object object= bodyDeclarations.get(0);
				if (!(object instanceof MethodDeclaration))
					continue;
				MethodDeclaration methodDeclaration= (MethodDeclaration) object;
				HashSet<String> excludedNames= new HashSet<String>();
				if (i != 0) {
					for (ClassInstanceCreation convertedCic : fExpressions.subList(0, i)) {
						if (ASTNodes.isParent(classInstanceCreation, convertedCic)) {
							excludedNames.addAll(cicToNewNames.get(convertedCic));
						}
					}
				}
				HashSet<String> newNames= makeNamesUnique(excludedNames, methodDeclaration, rewrite, group);
				cicToNewNames.put(classInstanceCreation, new HashSet<String>(newNames));
				List<SingleVariableDeclaration> methodParameters= methodDeclaration.parameters();

				// use short form with inferred parameter types and without parentheses if possible
				LambdaExpression lambdaExpression= ast.newLambdaExpression();
				List<VariableDeclaration> lambdaParameters= lambdaExpression.parameters();
				lambdaExpression.setParentheses(methodParameters.size() != 1);
				for (SingleVariableDeclaration methodParameter : methodParameters) {
					VariableDeclarationFragment lambdaParameter= ast.newVariableDeclarationFragment();
					lambdaParameter.setName((SimpleName) rewrite.createCopyTarget(methodParameter.getName()));
					lambdaParameters.add(lambdaParameter);
				}
				
				Block body= methodDeclaration.getBody();
				List<Statement> statements= body.statements();
				ASTNode lambdaBody= body;
				if (statements.size() == 1) {
					// use short form with just an expression body if possible
					Statement statement= statements.get(0);
					if (statement instanceof ExpressionStatement) {
						lambdaBody= ((ExpressionStatement) statement).getExpression();
					} else if (statement instanceof ReturnStatement) {
						Expression returnExpression= ((ReturnStatement) statement).getExpression();
						if (returnExpression != null) {
							lambdaBody= returnExpression;
						}
					}
				}
				//TODO: Bug 421479: [1.8][clean up][quick assist] convert anonymous to lambda must consider lost scope of interface
//				lambdaBody.accept(new InterfaceAccessQualifier(rewrite, classInstanceCreation.getType().resolveBinding())); //TODO: maybe need a separate ASTRewrite and string placeholder
				
				lambdaExpression.setBody(rewrite.createCopyTarget(lambdaBody));
				Expression replacement= lambdaExpression;
				if (ASTNodes.isTargetAmbiguous(classInstanceCreation, lambdaParameters.isEmpty())) {
					CastExpression cast= ast.newCastExpression();
					cast.setExpression(lambdaExpression);
					ImportRewrite importRewrite= cuRewrite.getImportRewrite();
					ImportRewriteContext importRewriteContext= new ContextSensitiveImportRewriteContext(classInstanceCreation, importRewrite);
					Type castType= importRewrite.addImport(classInstanceCreation.getType().resolveBinding(), ast, importRewriteContext);
					cast.setType(castType);
					importRemover.registerAddedImports(castType);
					replacement= cast;
				}
				rewrite.replace(classInstanceCreation, replacement, group);

				importRemover.registerRemovedNode(classInstanceCreation);
				importRemover.registerRetainedNode(lambdaBody);
			}
		}
 

private Type evaluateVariableType(AST ast, ImportRewrite imports, ImportRewriteContext importRewriteContext, IBinding targetContext) {
	if (fOriginalNode.getParent() instanceof MethodInvocation) {
		MethodInvocation parent= (MethodInvocation) fOriginalNode.getParent();
		if (parent.getExpression() == fOriginalNode) {
			// _x_.foo() -> guess qualifier type by looking for a type with method 'foo'
			ITypeBinding[] bindings= ASTResolving.getQualifierGuess(fOriginalNode.getRoot(), parent.getName().getIdentifier(), parent.arguments(), targetContext);
			if (bindings.length > 0) {
				for (int i= 0; i < bindings.length; i++) {
					addLinkedPositionProposal(KEY_TYPE, bindings[i]);
				}
				return imports.addImport(bindings[0], ast, importRewriteContext);
			}
		}
	}

	ITypeBinding binding= ASTResolving.guessBindingForReference(fOriginalNode);
	if (binding != null) {
		if (binding.isWildcardType()) {
			binding= ASTResolving.normalizeWildcardType(binding, isVariableAssigned(), ast);
			if (binding == null) {
				// only null binding applies
				binding= ast.resolveWellKnownType("java.lang.Object"); //$NON-NLS-1$
			}
		}

		if (isVariableAssigned()) {
			ITypeBinding[] typeProposals= ASTResolving.getRelaxingTypes(ast, binding);
			for (int i= 0; i < typeProposals.length; i++) {
				addLinkedPositionProposal(KEY_TYPE, typeProposals[i]);
			}
		}
		return imports.addImport(binding, ast, importRewriteContext);
	}
	// no binding, find type AST node instead -> ABC a= x-> use 'ABC' as is
	Type type= ASTResolving.guessTypeForReference(ast, fOriginalNode);
	if (type != null) {
		return type;
	}
	if (fVariableKind == CONST_FIELD) {
		return ast.newSimpleType(ast.newSimpleName("String")); //$NON-NLS-1$
	}
	return ast.newSimpleType(ast.newSimpleName("Object")); //$NON-NLS-1$
}
 

private void initReturnType(ImportRewrite rewriter) {
	AST ast = fEnclosingBodyDeclaration.getAST();
	fReturnType = null;
	fReturnTypeBinding = null;
	switch (fReturnKind) {
		case ACCESS_TO_LOCAL:
			VariableDeclaration declaration = ASTNodes.findVariableDeclaration(fReturnValue, fEnclosingBodyDeclaration);
			fReturnType = ASTNodeFactory.newType(ast, declaration, rewriter, new ContextSensitiveImportRewriteContext(declaration, rewriter));
			if (declaration.resolveBinding() != null) {
				fReturnTypeBinding = declaration.resolveBinding().getType();
			}
			break;
		case EXPRESSION:
			Expression expression = (Expression) getFirstSelectedNode();
			if (expression.getNodeType() == ASTNode.CLASS_INSTANCE_CREATION) {
				fExpressionBinding = ((ClassInstanceCreation) expression).getType().resolveBinding();
			} else {
				fExpressionBinding = expression.resolveTypeBinding();
			}
			if (fExpressionBinding != null) {
				if (fExpressionBinding.isNullType()) {
					getStatus().addFatalError(RefactoringCoreMessages.ExtractMethodAnalyzer_cannot_extract_null_type, JavaStatusContext.create(fCUnit, expression));
				} else {
					ITypeBinding normalizedBinding = Bindings.normalizeForDeclarationUse(fExpressionBinding, ast);
					if (normalizedBinding != null) {
						ImportRewriteContext context = new ContextSensitiveImportRewriteContext(fEnclosingBodyDeclaration, rewriter);
						fReturnType = rewriter.addImport(normalizedBinding, ast, context, TypeLocation.RETURN_TYPE);
						fReturnTypeBinding = normalizedBinding;
					}
				}
			} else {
				fReturnType = ast.newPrimitiveType(PrimitiveType.VOID);
				fReturnTypeBinding = ast.resolveWellKnownType("void"); //$NON-NLS-1$
				getStatus().addError(RefactoringCoreMessages.ExtractMethodAnalyzer_cannot_determine_return_type, JavaStatusContext.create(fCUnit, expression));
			}
			break;
		case RETURN_STATEMENT_VALUE:
			LambdaExpression enclosingLambdaExpr = ASTResolving.findEnclosingLambdaExpression(getFirstSelectedNode());
			if (enclosingLambdaExpr != null) {
				fReturnType = ASTNodeFactory.newReturnType(enclosingLambdaExpr, ast, rewriter, null);
				IMethodBinding methodBinding = enclosingLambdaExpr.resolveMethodBinding();
				fReturnTypeBinding = methodBinding != null ? methodBinding.getReturnType() : null;
			} else if (fEnclosingBodyDeclaration.getNodeType() == ASTNode.METHOD_DECLARATION) {
				fReturnType = ((MethodDeclaration) fEnclosingBodyDeclaration).getReturnType2();
				fReturnTypeBinding = fReturnType != null ? fReturnType.resolveBinding() : null;
			}
			break;
		default:
			fReturnType = ast.newPrimitiveType(PrimitiveType.VOID);
			fReturnTypeBinding = ast.resolveWellKnownType("void"); //$NON-NLS-1$
	}
	if (fReturnType == null) {
		fReturnType = ast.newPrimitiveType(PrimitiveType.VOID);
		fReturnTypeBinding = ast.resolveWellKnownType("void"); //$NON-NLS-1$
	}
}