Java Code Examples for org.eclipse.jdt.core.dom.ITypeBinding#getTypeDeclaration()

private void sortTypes(ITypeBinding[] typeProposals) {
	ITypeBinding oldType;
	if (fBinding instanceof IMethodBinding) {
		oldType= ((IMethodBinding) fBinding).getReturnType();
	} else {
		oldType= ((IVariableBinding) fBinding).getType();
	}
	if (! oldType.isParameterizedType()) {
		return;
	}

	final ITypeBinding oldTypeDeclaration= oldType.getTypeDeclaration();
	Arrays.sort(typeProposals, new Comparator<ITypeBinding>() {
		@Override
		public int compare(ITypeBinding o1, ITypeBinding o2) {
			return rank(o2) - rank(o1);
		}

		private int rank(ITypeBinding type) {
			if (type.getTypeDeclaration().equals(oldTypeDeclaration)) {
				return 1;
			}
			return 0;
		}
	});
}
 

private void sortTypes(ITypeBinding[] typeProposals) {
	ITypeBinding oldType;
	if (fBinding instanceof IMethodBinding) {
		oldType= ((IMethodBinding) fBinding).getReturnType();
	} else {
		oldType= ((IVariableBinding) fBinding).getType();
	}
	if (! oldType.isParameterizedType())
		return;
	
	final ITypeBinding oldTypeDeclaration= oldType.getTypeDeclaration();
	Arrays.sort(typeProposals, new Comparator<ITypeBinding>() {
		public int compare(ITypeBinding o1, ITypeBinding o2) {
			return rank(o2) - rank(o1);
		}

		private int rank(ITypeBinding type) {
			if (type.getTypeDeclaration().equals(oldTypeDeclaration))
				return 1;
			return 0;
		}
	});
}
 

/**
 * Evaluates if the declaration is visible in a certain context.
 * @param binding The binding of the declaration to examine
 * @param context The context to test in
 * @return Returns
 */
public static boolean isVisible(IBinding binding, ITypeBinding context) {
	if (binding.getKind() == IBinding.VARIABLE && !((IVariableBinding) binding).isField()) {
		return true; // all local variables found are visible
	}
	ITypeBinding declaring= getDeclaringType(binding);
	if (declaring == null) {
		return false;
	}

	declaring= declaring.getTypeDeclaration();

	int modifiers= binding.getModifiers();
	if (Modifier.isPublic(modifiers) || declaring.isInterface()) {
		return true;
	} else if (Modifier.isProtected(modifiers) || !Modifier.isPrivate(modifiers)) {
		if (declaring.getPackage() == context.getPackage()) {
			return true;
		}
		return isTypeInScope(declaring, context, Modifier.isProtected(modifiers));
	}
	// private visibility
	return isTypeInScope(declaring, context, false);
}
 

private ITypeBinding getExpressionType(final MethodInvocation invocation, ITypeBinding typeBinding) {
	if (typeBinding == null)
		return null;
	for (IMethodBinding iMethodBinding : typeBinding.getDeclaredMethods()) {
		if (invocation.resolveMethodBinding() == iMethodBinding)
			return typeBinding.getTypeDeclaration();
	}
	ITypeBinding expressionType= getExpressionType(invocation, typeBinding.getSuperclass());
	if (expressionType != null) {
		return expressionType;
	}
	for (ITypeBinding interfaceBinding : typeBinding.getInterfaces()) {
		expressionType= getExpressionType(invocation, interfaceBinding);
		if (expressionType != null) {
			return expressionType;
		}
	}
	return null;
}
 

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);
			}
		}
	}
}
 

@Override
public boolean visit(TypeDeclaration node) {
	ITypeBinding binding= node.resolveBinding();
	if (binding != null) {
		binding= binding.getTypeDeclaration();
		if (isMovedMember(binding))
			return false;
	}
	return super.visit(node);
}
 

private boolean subclassTypeMismatch(ITypeBinding nodeTypeBinding, ITypeBinding otherTypeBinding) {
	if(nodeTypeBinding.isParameterizedType() && otherTypeBinding.isParameterizedType()) {
		ITypeBinding declarationTypeBinding1 = nodeTypeBinding.getTypeDeclaration();
		ITypeBinding declarationTypeBinding2 = otherTypeBinding.getTypeDeclaration();
		return !declarationTypeBinding1.isEqualTo(declarationTypeBinding2) || !typeBindingMatch(nodeTypeBinding, otherTypeBinding);
	}
	return !nodeTypeBinding.isEqualTo(otherTypeBinding) || !nodeTypeBinding.getQualifiedName().equals(otherTypeBinding.getQualifiedName());
}
 

private static String getThisExpressionQualifier(ITypeBinding declaringClass, ImportRewrite imports, SimpleName name) {
	ITypeBinding parentType= Bindings.getBindingOfParentType(name);
	ITypeBinding currType= parentType;
	while (currType != null && !Bindings.isSuperType(declaringClass, currType)) {
		currType= currType.getDeclaringClass();
	}
	if (currType == null) {
		declaringClass= declaringClass.getTypeDeclaration();
		currType= parentType;
		while (currType != null && !Bindings.isSuperType(declaringClass, currType)) {
			currType= currType.getDeclaringClass();
		}
	}
	if (currType != parentType) {
		if (currType == null)
			return null;

		if (currType.isAnonymous())
			//If we access a field of a super class of an anonymous class
			//then we can only qualify with 'this' but not with outer.this
			//see bug 115277
			return null;

		return imports.addImport(currType);
	} else {
		return ""; //$NON-NLS-1$
	}
}
 

/**
 * Returns <code>true</code> if the given type is a super type of a candidate.
 * <code>true</code> is returned if the two type bindings are identical (TODO)
 * @param possibleSuperType the type to inspect
 * @param type the type whose super types are looked at
 * @param considerTypeArguments if <code>true</code>, consider type arguments of <code>type</code>
 * @return <code>true</code> iff <code>possibleSuperType</code> is
 * 		a super type of <code>type</code> or is equal to it
 */
public static boolean isSuperType(ITypeBinding possibleSuperType, ITypeBinding type, boolean considerTypeArguments) {
	if (type.isArray() || type.isPrimitive()) {
		return false;
	}
	if (! considerTypeArguments) {
		type= type.getTypeDeclaration();
	}
	if (Bindings.equals(type, possibleSuperType)) {
		return true;
	}
	ITypeBinding superClass= type.getSuperclass();
	if (superClass != null) {
		if (isSuperType(possibleSuperType, superClass, considerTypeArguments)) {
			return true;
		}
	}

	if (possibleSuperType.isInterface()) {
		ITypeBinding[] superInterfaces= type.getInterfaces();
		for (int i= 0; i < superInterfaces.length; i++) {
			if (isSuperType(possibleSuperType, superInterfaces[i], considerTypeArguments)) {
				return true;
			}
		}
	}
	return false;
}
 

private static void addNewFieldProposals(ICompilationUnit cu, CompilationUnit astRoot, ITypeBinding binding,
		ITypeBinding declaringTypeBinding, SimpleName simpleName, boolean isWriteAccess,
		Collection<ChangeCorrectionProposal> proposals) throws JavaModelException {
	// new variables
	ICompilationUnit targetCU;
	ITypeBinding senderDeclBinding;
	if (binding != null) {
		senderDeclBinding= binding.getTypeDeclaration();
		targetCU= ASTResolving.findCompilationUnitForBinding(cu, astRoot, senderDeclBinding);
	} else { // binding is null for accesses without qualifier
		senderDeclBinding= declaringTypeBinding;
		targetCU= cu;
	}

	if (!senderDeclBinding.isFromSource() || targetCU == null) {
		return;
	}

	boolean mustBeConst= ASTResolving.isInsideModifiers(simpleName);

	addNewFieldForType(targetCU, binding, senderDeclBinding, simpleName, isWriteAccess, mustBeConst, proposals);

	if (binding == null && senderDeclBinding.isNested()) {
		ASTNode anonymDecl= astRoot.findDeclaringNode(senderDeclBinding);
		if (anonymDecl != null) {
			ITypeBinding bind= Bindings.getBindingOfParentType(anonymDecl.getParent());
			if (!bind.isAnonymous()) {
				addNewFieldForType(targetCU, bind, bind, simpleName, isWriteAccess, mustBeConst, proposals);
			}
		}
	}
}
 

private static boolean isTypeInScope(ITypeBinding declaring, ITypeBinding context, boolean includeHierarchy) {
	ITypeBinding curr= context.getTypeDeclaration();
	while (curr != null && curr != declaring) {
		if (includeHierarchy && isInSuperTypeHierarchy(declaring, curr)) {
			return true;
		}
		curr= curr.getDeclaringClass();
	}
	return curr == declaring;
}
 

private static void addNewFieldProposals(ICompilationUnit cu, CompilationUnit astRoot, ITypeBinding binding, ITypeBinding declaringTypeBinding, SimpleName simpleName, boolean isWriteAccess, Collection<ICommandAccess> proposals) throws JavaModelException {
	// new variables
	ICompilationUnit targetCU;
	ITypeBinding senderDeclBinding;
	if (binding != null) {
		senderDeclBinding= binding.getTypeDeclaration();
		targetCU= ASTResolving.findCompilationUnitForBinding(cu, astRoot, senderDeclBinding);
	} else { // binding is null for accesses without qualifier
		senderDeclBinding= declaringTypeBinding;
		targetCU= cu;
	}

	if (!senderDeclBinding.isFromSource() || targetCU == null) {
		return;
	}

	boolean mustBeConst= ASTResolving.isInsideModifiers(simpleName);

	addNewFieldForType(targetCU, binding, senderDeclBinding, simpleName, isWriteAccess, mustBeConst, proposals);

	if (binding == null && senderDeclBinding.isNested()) {
		ASTNode anonymDecl= astRoot.findDeclaringNode(senderDeclBinding);
		if (anonymDecl != null) {
			ITypeBinding bind= Bindings.getBindingOfParentType(anonymDecl.getParent());
			if (!bind.isAnonymous()) {
				addNewFieldForType(targetCU, bind, bind, simpleName, isWriteAccess, mustBeConst, proposals);
			}
		}
	}
}
 

public static String[] getVariableNameSuggestions(int variableKind, IJavaProject project, ITypeBinding expectedType, Expression assignedExpression, Collection<String> excluded) {
	LinkedHashSet<String> res= new LinkedHashSet<String>(); // avoid duplicates but keep order

	if (assignedExpression != null) {
		String nameFromExpression= getBaseNameFromExpression(project, assignedExpression, variableKind);
		if (nameFromExpression != null) {
			add(getVariableNameSuggestions(variableKind, project, nameFromExpression, 0, excluded, false), res); // pass 0 as dimension, base name already contains plural.
		}

		String nameFromParent= getBaseNameFromLocationInParent(assignedExpression);
		if (nameFromParent != null) {
			add(getVariableNameSuggestions(variableKind, project, nameFromParent, 0, excluded, false), res); // pass 0 as dimension, base name already contains plural.
		}
	}
	if (expectedType != null) {
		expectedType= Bindings.normalizeTypeBinding(expectedType);
		if (expectedType != null) {
			int dim= 0;
			if (expectedType.isArray()) {
				dim= expectedType.getDimensions();
				expectedType= expectedType.getElementType();
			}
			if (expectedType.isParameterizedType()) {
				expectedType= expectedType.getTypeDeclaration();
			}
			String typeName= expectedType.getName();
			if (typeName.length() > 0) {
				add(getVariableNameSuggestions(variableKind, project, typeName, dim, excluded, false), res);
			}
		}
	}
	if (res.isEmpty()) {
		return getDefaultVariableNameSuggestions(variableKind, excluded);
	}
	return res.toArray(new String[res.size()]);
}
 

private static IBinding getDeclaringMember(ITypeBinding typeBinding) {
  ITypeBinding typeDeclaration = typeBinding.getTypeDeclaration();
  IBinding declaringMember = typeDeclaration.getDeclaringMember();
  if (declaringMember == null) {
    // Work around for b/147690014, in which getDeclaringMember returns null, but there is
    // a declaring member and is returned by getDeclaringMethod.
    declaringMember = typeDeclaration.getDeclaringMethod();
  }
  return declaringMember;
}
 

private static void addNewMethodProposals(ICompilationUnit cu, CompilationUnit astRoot, Expression sender, List<Expression> arguments, boolean isSuperInvocation, ASTNode invocationNode, String methodName, Collection<ICommandAccess> proposals) throws JavaModelException {
	ITypeBinding nodeParentType= Bindings.getBindingOfParentType(invocationNode);
	ITypeBinding binding= null;
	if (sender != null) {
		binding= sender.resolveTypeBinding();
	} else {
		binding= nodeParentType;
		if (isSuperInvocation && binding != null) {
			binding= binding.getSuperclass();
		}
	}
	if (binding != null && binding.isFromSource()) {
		ITypeBinding senderDeclBinding= binding.getTypeDeclaration();

		ICompilationUnit targetCU= ASTResolving.findCompilationUnitForBinding(cu, astRoot, senderDeclBinding);
		if (targetCU != null) {
			String label;
			Image image;
			ITypeBinding[] parameterTypes= getParameterTypes(arguments);
			if (parameterTypes != null) {
				String sig= ASTResolving.getMethodSignature(methodName, parameterTypes, false);

				if (ASTResolving.isUseableTypeInContext(parameterTypes, senderDeclBinding, false)) {
					if (nodeParentType == senderDeclBinding) {
						label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_createmethod_description, sig);
						image= JavaPluginImages.get(JavaPluginImages.IMG_MISC_PRIVATE);
					} else {
						label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_createmethod_other_description, new Object[] { sig, BasicElementLabels.getJavaElementName(senderDeclBinding.getName()) } );
						image= JavaPluginImages.get(JavaPluginImages.IMG_MISC_PUBLIC);
					}
					proposals.add(new NewMethodCorrectionProposal(label, targetCU, invocationNode, arguments, senderDeclBinding, IProposalRelevance.CREATE_METHOD, image));
				}
				if (senderDeclBinding.isNested() && cu.equals(targetCU) && sender == null && Bindings.findMethodInHierarchy(senderDeclBinding, methodName, (ITypeBinding[]) null) == null) { // no covering method
					ASTNode anonymDecl= astRoot.findDeclaringNode(senderDeclBinding);
					if (anonymDecl != null) {
						senderDeclBinding= Bindings.getBindingOfParentType(anonymDecl.getParent());
						if (!senderDeclBinding.isAnonymous() && ASTResolving.isUseableTypeInContext(parameterTypes, senderDeclBinding, false)) {
							String[] args= new String[] { sig, ASTResolving.getTypeSignature(senderDeclBinding) };
							label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_createmethod_other_description, args);
							image= JavaPluginImages.get(JavaPluginImages.IMG_MISC_PROTECTED);
							proposals.add(new NewMethodCorrectionProposal(label, targetCU, invocationNode, arguments, senderDeclBinding, IProposalRelevance.CREATE_METHOD, image));
						}
					}
				}
			}
		}
	}
}
 

@Override
public final boolean visit(final SimpleName node) {
	Assert.isNotNull(node);
	final AST ast= node.getAST();
	final ASTRewrite rewrite= fRewrite;
	final IBinding binding= node.resolveBinding();
	if (binding instanceof ITypeBinding) {
		ITypeBinding type= (ITypeBinding) binding;
		String name= fTargetRewrite.getImportRewrite().addImport(type.getTypeDeclaration());
		if (name != null && name.indexOf('.') != -1) {
			fRewrite.replace(node, ASTNodeFactory.newName(ast, name), null);
			return false;
		}
	}
	if (Bindings.equals(fTarget, binding))
		if (fAnonymousClass > 0) {
			final ThisExpression target= ast.newThisExpression();
			target.setQualifier(ast.newSimpleName(fTargetType.getElementName()));
			fRewrite.replace(node, target, null);
		} else
			rewrite.replace(node, ast.newThisExpression(), null);
	else if (binding instanceof IVariableBinding) {
		final IVariableBinding variable= (IVariableBinding) binding;
		final IMethodBinding method= fDeclaration.resolveBinding();
		ITypeBinding declaring= variable.getDeclaringClass();
		if (method != null) {
			if (declaring != null && Bindings.isSuperType(declaring, method.getDeclaringClass(), false)) {
				declaring= declaring.getTypeDeclaration();
				if (JdtFlags.isStatic(variable))
					rewrite.replace(node, ast.newQualifiedName(ASTNodeFactory.newName(ast, fTargetRewrite.getImportRewrite().addImport(declaring)), ast.newSimpleName(node.getFullyQualifiedName())), null);
				else {
					final FieldAccess access= ast.newFieldAccess();
					access.setExpression(ast.newSimpleName(fTargetName));
					access.setName(ast.newSimpleName(node.getFullyQualifiedName()));
					rewrite.replace(node, access, null);
				}
			} else if (!(node.getParent() instanceof QualifiedName) && JdtFlags.isStatic(variable) && !fStaticImports.contains(variable) && !Checks.isEnumCase(node.getParent())) {
				rewrite.replace(node, ast.newQualifiedName(ASTNodeFactory.newName(ast, fTargetRewrite.getImportRewrite().addImport(declaring)), ast.newSimpleName(node.getFullyQualifiedName())), null);
			}
		}
	}
	return false;
}
 

private static void addNewMethodProposals(ICompilationUnit cu, CompilationUnit astRoot, Expression sender,
		List<Expression> arguments, boolean isSuperInvocation, ASTNode invocationNode, String methodName,
		Collection<ChangeCorrectionProposal> proposals) throws JavaModelException {
	ITypeBinding nodeParentType= Bindings.getBindingOfParentType(invocationNode);
	ITypeBinding binding= null;
	if (sender != null) {
		binding= sender.resolveTypeBinding();
	} else {
		binding= nodeParentType;
		if (isSuperInvocation && binding != null) {
			binding= binding.getSuperclass();
		}
	}
	if (binding != null && binding.isFromSource()) {
		ITypeBinding senderDeclBinding= binding.getTypeDeclaration();

		ICompilationUnit targetCU= ASTResolving.findCompilationUnitForBinding(cu, astRoot, senderDeclBinding);
		if (targetCU != null) {
			String label;
			ITypeBinding[] parameterTypes= getParameterTypes(arguments);
			if (parameterTypes != null) {
				String sig = org.eclipse.jdt.ls.core.internal.corrections.ASTResolving.getMethodSignature(methodName, parameterTypes, false);
				boolean is18OrHigher= JavaModelUtil.is18OrHigher(targetCU.getJavaProject());

				boolean isSenderBindingInterface= senderDeclBinding.isInterface();
				if (nodeParentType == senderDeclBinding) {
					label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_createmethod_description, sig);
				} else {
					label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_createmethod_other_description, new Object[] { sig, BasicElementLabels.getJavaElementName(senderDeclBinding.getName()) } );
				}
				if (is18OrHigher || !isSenderBindingInterface
						|| (nodeParentType != senderDeclBinding && (!(sender instanceof SimpleName) || !((SimpleName) sender).getIdentifier().equals(senderDeclBinding.getName())))) {
					proposals.add(new NewMethodCorrectionProposal(label, targetCU, invocationNode, arguments,
							senderDeclBinding, IProposalRelevance.CREATE_METHOD));
				}

				if (senderDeclBinding.isNested() && cu.equals(targetCU) && sender == null && Bindings.findMethodInHierarchy(senderDeclBinding, methodName, (ITypeBinding[]) null) == null) { // no covering method
					ASTNode anonymDecl= astRoot.findDeclaringNode(senderDeclBinding);
					if (anonymDecl != null) {
						senderDeclBinding= Bindings.getBindingOfParentType(anonymDecl.getParent());
						isSenderBindingInterface= senderDeclBinding.isInterface();
						if (!senderDeclBinding.isAnonymous()) {
							if (is18OrHigher || !isSenderBindingInterface) {
								String[] args = new String[] { sig,
										org.eclipse.jdt.ls.core.internal.corrections.ASTResolving.getTypeSignature(senderDeclBinding) };
								label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_createmethod_other_description, args);
								proposals.add(new NewMethodCorrectionProposal(label, targetCU, invocationNode,
										arguments, senderDeclBinding, IProposalRelevance.CREATE_METHOD));
							}
						}
					}
				}
			}
		}
	}
}
 

private RefactoringStatus updateReferences(IProgressMonitor monitor) throws CoreException {

		RefactoringStatus result= new RefactoringStatus();

		monitor.beginTask("", 90); //$NON-NLS-1$

		if (monitor.isCanceled())
			throw new OperationCanceledException();

		IMethod[] ripple= RippleMethodFinder2.getRelatedMethods(fTargetMethod, false, new NoOverrideProgressMonitor(monitor, 10), null);

		if (monitor.isCanceled())
			throw new OperationCanceledException();

		SearchResultGroup[] references= Checks.excludeCompilationUnits(getReferences(ripple, new NoOverrideProgressMonitor(monitor, 10), result), result);

		if (result.hasFatalError())
			return result;

		result.merge(Checks.checkCompileErrorsInAffectedFiles(references));

		if (monitor.isCanceled())
			throw new OperationCanceledException();

		int ticksPerCU= references.length == 0 ? 0 : 70 / references.length;

		for (int i= 0; i < references.length; i++) {
			SearchResultGroup group= references[i];
			SearchMatch[] searchResults= group.getSearchResults();
			CompilationUnitRewrite currentCURewrite= getCachedCURewrite(group.getCompilationUnit());

			for (int j= 0; j < searchResults.length; j++) {

				SearchMatch match= searchResults[j];
				if (match.isInsideDocComment())
					continue;

				IMember enclosingMember= (IMember) match.getElement();
				ASTNode target= getSelectedNode(group.getCompilationUnit(), currentCURewrite.getRoot(), match.getOffset(), match.getLength());

				if (target instanceof SuperMethodInvocation) {
					// Cannot retarget calls to super - add a warning
					result.merge(createWarningAboutCall(enclosingMember, target, RefactoringCoreMessages.IntroduceIndirectionRefactoring_call_warning_super_keyword));
					continue;
				}

				Assert.isTrue(target instanceof MethodInvocation, "Element of call should be a MethodInvocation."); //$NON-NLS-1$

				MethodInvocation invocation= (MethodInvocation) target;
				ITypeBinding typeBinding= getExpressionType(invocation);

				if (fIntermediaryFirstParameterType == null) {
					// no highest type yet
					fIntermediaryFirstParameterType= typeBinding.getTypeDeclaration();
				} else {
					// check if current type is higher
					result.merge(findCommonParent(typeBinding.getTypeDeclaration()));
				}

				if (result.hasFatalError())
					return result;

				// create an edit for this particular call
				result.merge(updateMethodInvocation(invocation, enclosingMember, currentCURewrite));

				// does call see the intermediary method?
				// => increase visibility of the type of the intermediary method.
				result.merge(adjustVisibility(fIntermediaryType, enclosingMember.getDeclaringType(), new NoOverrideProgressMonitor(monitor, 0)));

				if (monitor.isCanceled())
					throw new OperationCanceledException();
			}

			if (!isRewriteKept(group.getCompilationUnit()))
				createChangeAndDiscardRewrite(group.getCompilationUnit());

			monitor.worked(ticksPerCU);
		}

		monitor.done();
		return result;
	}
 

/**
 * Attempts to qualify a "this" expression for a method invocation with an appropriate qualifier.
 * The invoked method is analyzed according to the following specs:
 *
 * 'this' must be qualified iff method is declared in an enclosing type or a supertype of an enclosing type
 *
 * 1) The method is declared somewhere outside of the cu of the invocation
 *      1a) inside a supertype of the current type
 *      1b) inside a supertype of an enclosing type
 * 2) The method is declared inside of the cu of the invocation
 * 		2a) inside the type of the invocation
 * 		2b) outside the type of the invocation
 *
 * In case of 1a) and 2b), qualify with the enclosing type.
 * @param expr a {@link ThisExpression}
 * @param originalInvocation the original method invocation
 * @param enclosing the enclosing member of the original method invocation
 * @param unitRewriter the rewrite
 * @return resulting status
 *
 */
private RefactoringStatus qualifyThisExpression(ThisExpression expr, MethodInvocation originalInvocation, IMember enclosing, CompilationUnitRewrite unitRewriter) {

	RefactoringStatus status= new RefactoringStatus();

	IMethodBinding methodBinding= originalInvocation.resolveMethodBinding();
	MethodDeclaration methodDeclaration= (MethodDeclaration) ASTNodes.findDeclaration(methodBinding, originalInvocation.getRoot());

	ITypeBinding currentTypeBinding= null;
	if (methodDeclaration != null) {
		// Case 1) : Declaring type is inside this cu => use its name if it's declared in an enclosing type
		if (ASTNodes.isParent(originalInvocation, methodDeclaration.getParent()))
			currentTypeBinding= methodBinding.getDeclaringClass();
		else
			currentTypeBinding= ASTNodes.getEnclosingType(originalInvocation);
	} else {
		// Case 2) : Declaring type is outside of this cu => find subclass in this cu
		ASTNode currentTypeDeclaration= getEnclosingTypeDeclaration(originalInvocation);
		currentTypeBinding= ASTNodes.getEnclosingType(currentTypeDeclaration);
		while (currentTypeDeclaration != null && (Bindings.findMethodInHierarchy(currentTypeBinding, methodBinding.getName(), methodBinding.getParameterTypes()) == null)) {
			currentTypeDeclaration= getEnclosingTypeDeclaration(currentTypeDeclaration.getParent());
			currentTypeBinding= ASTNodes.getEnclosingType(currentTypeDeclaration);
		}
	}

	if (currentTypeBinding == null) {
		status.merge(createWarningAboutCall(enclosing, originalInvocation, RefactoringCoreMessages.IntroduceIndirectionRefactoring_call_warning_declaring_type_not_found));
		return status;
	}

	currentTypeBinding= currentTypeBinding.getTypeDeclaration();

	ITypeBinding typeOfCall= ASTNodes.getEnclosingType(originalInvocation);
	if (!typeOfCall.equals(currentTypeBinding)) {
		if (currentTypeBinding.isAnonymous()) {
			// Cannot qualify, see bug 115277
			status.merge(createWarningAboutCall(enclosing, originalInvocation, RefactoringCoreMessages.IntroduceIndirectionRefactoring_call_warning_anonymous_cannot_qualify));
		} else {
			expr.setQualifier(unitRewriter.getAST().newSimpleName(currentTypeBinding.getName()));
		}
	} else {
		// do not qualify, only use "this.".
	}

	return status;
}
 

private boolean isConflictingType(ITypeBinding binding, String qualifier, String name) {
	binding= binding.getTypeDeclaration();
	return !isSameType(binding, qualifier, name) && isConflicting(binding, name);
}