org.eclipse.jdt.core.dom.SimpleName Java Examples

private static List<SimpleName> getOccurrencesOfSimpleName(Expression expression, SimpleName simpleName)
{
	List<SimpleName> returnList = new ArrayList<SimpleName>();
	ExpressionExtractor expressionExtractor = new ExpressionExtractor();
	List<Expression> simpleNames = expressionExtractor.getVariableInstructions(expression);
	for (Expression currentExpression : simpleNames)
	{
		SimpleName currentSimpleName = (SimpleName)currentExpression;
		IBinding currentSimpleNameBinding = currentSimpleName.resolveBinding();
		if (currentSimpleNameBinding != null && currentSimpleNameBinding.isEqualTo(simpleName.resolveBinding()))
		{
			returnList.add(currentSimpleName);
		}
	}
	return returnList;
}
 

public VariableDeclaration getVariableDeclaration(SimpleName name) {
	ASTNode node = name;
	do {
		node = node.getParent();
	} while ( node != null && !(node instanceof MethodDeclaration) );
	
	String key = null;
	
	if(node != null) {
		key = node.toString() + "/" + name.getFullyQualifiedName();
	}else {
		key = "GLOBAL" + name.getFullyQualifiedName();	
	}
	
	logError("Trying " + key);
	VariableDeclaration var = getVariableDeclaration(key);
	if(var == null && node != null) {
		key = "GLOBAL" + name.getFullyQualifiedName();
		log("Trying " + key);
		var = getVariableDeclaration(key);
	}
	
	return var;
}
 

private ASTRewrite doAddEnumConst(CompilationUnit astRoot) {
	SimpleName node= fOriginalNode;

	ASTNode newTypeDecl= astRoot.findDeclaringNode(fSenderBinding);
	if (newTypeDecl == null) {
		astRoot= ASTResolving.createQuickFixAST(getCompilationUnit(), null);
		newTypeDecl= astRoot.findDeclaringNode(fSenderBinding.getKey());
	}

	if (newTypeDecl != null) {
		AST ast= newTypeDecl.getAST();

		ASTRewrite rewrite= ASTRewrite.create(ast);

		EnumConstantDeclaration constDecl= ast.newEnumConstantDeclaration();
		constDecl.setName(ast.newSimpleName(node.getIdentifier()));

		ListRewrite listRewriter= rewrite.getListRewrite(newTypeDecl, EnumDeclaration.ENUM_CONSTANTS_PROPERTY);
		listRewriter.insertLast(constDecl, null);

		return rewrite;
	}
	return null;
}
 

/**
 * {@inheritDoc}
 */
@Override
public void rewriteAST(CompilationUnitRewrite cuRewrite, LinkedProposalModel model) throws CoreException {
	ASTRewrite rewrite= cuRewrite.getASTRewrite();
	TextEditGroup group= createTextEditGroup(getDescription(), cuRewrite);
	AST ast= rewrite.getAST();

	FieldAccess fieldAccess= ast.newFieldAccess();

	ThisExpression thisExpression= ast.newThisExpression();
	if (fQualifier != null)
		thisExpression.setQualifier(ast.newName(fQualifier));

	fieldAccess.setExpression(thisExpression);
	fieldAccess.setName((SimpleName) rewrite.createMoveTarget(fName));

	rewrite.replace(fName, fieldAccess, group);
}
 

private void removeParamTagElementFromJavadoc(MethodDeclaration newMethodDeclaration, ASTRewrite targetRewriter, String parameterToBeRemoved) {
	if(newMethodDeclaration.getJavadoc() != null) {
		Javadoc javadoc = newMethodDeclaration.getJavadoc();
		List<TagElement> tags = javadoc.tags();
		for(TagElement tag : tags) {
			if(tag.getTagName() != null && tag.getTagName().equals(TagElement.TAG_PARAM)) {
				List<ASTNode> tagFragments = tag.fragments();
				boolean paramFound = false;
				for(ASTNode node : tagFragments) {
					if(node instanceof SimpleName) {
						SimpleName simpleName = (SimpleName)node;
						if(simpleName.getIdentifier().equals(parameterToBeRemoved)) {
							paramFound = true;
							break;
						}
					}
				}
				if(paramFound) {
					ListRewrite tagsRewrite = targetRewriter.getListRewrite(javadoc, Javadoc.TAGS_PROPERTY);
					tagsRewrite.remove(tag, null);
					break;
				}
			}
		}
	}
}
 

private boolean isVariableWithTypeMismatchDifference(Expression expression1, Expression expression2, ASTNodeDifference difference) {
	if(expression1 instanceof SimpleName && expression2 instanceof SimpleName) {
		SimpleName simpleName1 = (SimpleName)expression1;
		SimpleName simpleName2 = (SimpleName)expression2;
		IBinding binding1 = simpleName1.resolveBinding();
		IBinding binding2 = simpleName2.resolveBinding();
		//check if both simpleNames refer to variables
		if(binding1 != null && binding1.getKind() == IBinding.VARIABLE && binding2 != null && binding2.getKind() == IBinding.VARIABLE) {
			List<Difference> differences = difference.getDifferences();
			if(differences.size() == 1) {
				Difference diff = differences.get(0);
				if(diff.getType().equals(DifferenceType.SUBCLASS_TYPE_MISMATCH) || diff.getType().equals(DifferenceType.VARIABLE_TYPE_MISMATCH)) {
					return true;
				}
			}
		}
	}
	return false;
}
 

private Expression handleSimpleNameAssignment(ASTNode replaceNode, ParameterObjectFactory pof, String parameterName, AST ast, IJavaProject javaProject, boolean useSuper) {
	if (replaceNode instanceof Assignment) {
		Assignment assignment= (Assignment) replaceNode;
		Expression rightHandSide= assignment.getRightHandSide();
		if (rightHandSide.getNodeType() == ASTNode.SIMPLE_NAME) {
			SimpleName sn= (SimpleName) rightHandSide;
			IVariableBinding binding= ASTNodes.getVariableBinding(sn);
			if (binding != null && binding.isField()) {
				if (fDescriptor.getType().getFullyQualifiedName().equals(binding.getDeclaringClass().getQualifiedName())) {
					FieldInfo fieldInfo= getFieldInfo(binding.getName());
					if (fieldInfo != null && binding == fieldInfo.pi.getOldBinding()) {
						return pof.createFieldReadAccess(fieldInfo.pi, parameterName, ast, javaProject, useSuper, null);
					}
				}
			}
		}
	}
	return null;
}
 

@Override
public boolean consumes(SemanticToken token) {

	// 1: match types
	SimpleName name = token.getNode();
	ASTNode node = name.getParent();
	int nodeType = node.getNodeType();
	if (nodeType != ASTNode.SIMPLE_TYPE && nodeType != ASTNode.THIS_EXPRESSION && nodeType != ASTNode.QUALIFIED_TYPE && nodeType != ASTNode.QUALIFIED_NAME && nodeType != ASTNode.TYPE_DECLARATION
			&& nodeType != ASTNode.METHOD_INVOCATION) {
		return false;
	}
	while (nodeType == ASTNode.QUALIFIED_NAME) {
		node = node.getParent();
		nodeType = node.getNodeType();
		if (nodeType == ASTNode.IMPORT_DECLARATION) {
			return false;
		}
	}

	// 2: match classes
	IBinding binding = token.getBinding();
	return binding instanceof ITypeBinding && ((ITypeBinding) binding).isClass();
}
 

@Override
public boolean consumes(SemanticToken token) {

	// 1: match types
	SimpleName name = token.getNode();
	ASTNode node = name.getParent();
	int nodeType = node.getNodeType();
	if (nodeType != ASTNode.METHOD_INVOCATION && nodeType != ASTNode.SIMPLE_TYPE && nodeType != ASTNode.QUALIFIED_TYPE && nodeType != ASTNode.QUALIFIED_NAME && nodeType != ASTNode.QUALIFIED_NAME
			&& nodeType != ASTNode.ENUM_DECLARATION) {
		return false;
	}
	while (nodeType == ASTNode.QUALIFIED_NAME) {
		node = node.getParent();
		nodeType = node.getNodeType();
		if (nodeType == ASTNode.IMPORT_DECLARATION) {
			return false;
		}
	}

	// 2: match enums
	IBinding binding = token.getBinding();
	return binding instanceof ITypeBinding && ((ITypeBinding) binding).isEnum();
}
 

/**
 * {@inheritDoc}
 */
@Override
public void rewriteAST(CompilationUnitRewrite cuRewrite, LinkedProposalModel model) throws CoreException {
	ASTRewrite rewrite= cuRewrite.getASTRewrite();
	CompilationUnit compilationUnit= cuRewrite.getRoot();
	importType(fDeclaringClass, fName, cuRewrite.getImportRewrite(), compilationUnit);
	TextEditGroup group;
	if (fName.resolveBinding() instanceof IMethodBinding) {
		group= createTextEditGroup(FixMessages.CodeStyleFix_QualifyMethodWithDeclClass_description, cuRewrite);
	} else {
		group= createTextEditGroup(FixMessages.CodeStyleFix_QualifyFieldWithDeclClass_description, cuRewrite);
	}
	IJavaElement javaElement= fDeclaringClass.getJavaElement();
	if (javaElement instanceof IType) {
		Name qualifierName= compilationUnit.getAST().newName(((IType)javaElement).getElementName());
		SimpleName simpleName= (SimpleName)rewrite.createMoveTarget(fName);
		QualifiedName qualifiedName= compilationUnit.getAST().newQualifiedName(qualifierName, simpleName);
		rewrite.replace(fName, qualifiedName, group);
	}
}
 

private SimpleName addSourceClassParameterToMovedMethod(MethodDeclaration newMethodDeclaration, ASTRewrite targetRewriter) {
	AST ast = newMethodDeclaration.getAST();
	SingleVariableDeclaration parameter = ast.newSingleVariableDeclaration();
	SimpleName typeName = ast.newSimpleName(sourceTypeDeclaration.getName().getIdentifier());
	Type parameterType = ast.newSimpleType(typeName);
	targetRewriter.set(parameter, SingleVariableDeclaration.TYPE_PROPERTY, parameterType, null);
	String sourceTypeName = sourceTypeDeclaration.getName().getIdentifier();
	SimpleName parameterName = ast.newSimpleName(sourceTypeName.replaceFirst(Character.toString(sourceTypeName.charAt(0)), Character.toString(Character.toLowerCase(sourceTypeName.charAt(0)))));
	targetRewriter.set(parameter, SingleVariableDeclaration.NAME_PROPERTY, parameterName, null);
	ListRewrite parametersRewrite = targetRewriter.getListRewrite(newMethodDeclaration, MethodDeclaration.PARAMETERS_PROPERTY);
	parametersRewrite.insertLast(parameter, null);
	this.additionalArgumentsAddedToMovedMethod.add("this");
	this.additionalTypeBindingsToBeImportedInTargetClass.add(sourceTypeDeclaration.resolveBinding());
	addParamTagElementToJavadoc(newMethodDeclaration, targetRewriter, parameterName.getIdentifier());
	setPublicModifierToSourceTypeDeclaration();
	return parameterName;
}
 

@Override
public boolean consumes(SemanticToken token) {
	SimpleName node= token.getNode();
	if (node.isDeclaration())
		return false;

	IBinding binding= token.getBinding();
	boolean isAbstractMethod= binding != null && binding.getKind() == IBinding.METHOD && (binding.getModifiers() & Modifier.ABSTRACT) == Modifier.ABSTRACT;
	if (!isAbstractMethod)
		return false;

	// filter out annotation value references
	if (binding != null) {
		ITypeBinding declaringType= ((IMethodBinding)binding).getDeclaringClass();
		if (declaringType.isAnnotation())
			return false;
	}

	return true;
}
 

/**
 * Is the specified name a field access?
 *
 * @param name
 *            the name to check
 * @return <code>true</code> if this name is a field access,
 *         <code>false</code> otherwise
 */
protected static boolean isFieldAccess(final SimpleName name) {
	Assert.isNotNull(name);
	final IBinding binding= name.resolveBinding();
	if (!(binding instanceof IVariableBinding))
		return false;
	final IVariableBinding variable= (IVariableBinding) binding;
	if (!variable.isField())
		return false;
	if ("length".equals(name.getIdentifier())) { //$NON-NLS-1$
		final ASTNode parent= name.getParent();
		if (parent instanceof QualifiedName) {
			final QualifiedName qualified= (QualifiedName) parent;
			final ITypeBinding type= qualified.getQualifier().resolveTypeBinding();
			if (type != null && type.isArray())
				return false;
		}
	}
	return !Modifier.isStatic(variable.getModifiers());
}
 

private void replaceThisExpressionWithSourceClassParameterInMethodInvocationArguments(MethodDeclaration newMethodDeclaration, ASTRewrite targetRewriter) {
	ExpressionExtractor extractor = new ExpressionExtractor();
	List<Expression> methodInvocations = extractor.getMethodInvocations(newMethodDeclaration.getBody());
	for(Expression invocation : methodInvocations) {
		if(invocation instanceof MethodInvocation) {
			MethodInvocation methodInvocation = (MethodInvocation)invocation;
			List<Expression> arguments = methodInvocation.arguments();
			for(Expression argument : arguments) {
				if(argument instanceof ThisExpression) {
					SimpleName parameterName = null;
					if(!additionalArgumentsAddedToMovedMethod.contains("this")) {
						parameterName = addSourceClassParameterToMovedMethod(newMethodDeclaration, targetRewriter);
					}
					else {
						AST ast = newMethodDeclaration.getAST();
						String sourceTypeName = sourceTypeDeclaration.getName().getIdentifier();
						parameterName = ast.newSimpleName(sourceTypeName.replaceFirst(Character.toString(sourceTypeName.charAt(0)), Character.toString(Character.toLowerCase(sourceTypeName.charAt(0)))));
					}
					ListRewrite argumentRewrite = targetRewriter.getListRewrite(methodInvocation, MethodInvocation.ARGUMENTS_PROPERTY);
					argumentRewrite.replace(argument, parameterName, null);
				}
			}
		}
	}
}
 

/**
 * Fix for {@link IProblem#NullableFieldReference}
 * @param context context
 * @param problem problem to be fixed
 * @param proposals accumulator for computed proposals
 */
public static void addExtractCheckedLocalProposal(IInvocationContext context, IProblemLocation problem, Collection<ICommandAccess> proposals) {
	CompilationUnit compilationUnit = context.getASTRoot();
	ICompilationUnit cu= (ICompilationUnit) compilationUnit.getJavaElement();

	ASTNode selectedNode= problem.getCoveringNode(compilationUnit);

	SimpleName name= findProblemFieldName(selectedNode, problem.getProblemId());
	if (name == null)
		return;

	ASTNode method= ASTNodes.getParent(selectedNode, MethodDeclaration.class);
	if (method == null)
		method= ASTNodes.getParent(selectedNode, Initializer.class);
	if (method == null)
		return;
	
	proposals.add(new ExtractToNullCheckedLocalProposal(cu, compilationUnit, name, method));
}
 

private boolean needsImport(ITypeBinding typeBinding, SimpleName ref) {
	if (!typeBinding.isTopLevel() && !typeBinding.isMember() || typeBinding.isRecovered()) {
		return false; // no imports for anonymous, local, primitive types or parameters types
	}
	int modifiers= typeBinding.getModifiers();
	if (Modifier.isPrivate(modifiers)) {
		return false; // imports for privates are not required
	}
	ITypeBinding currTypeBinding= Bindings.getBindingOfParentType(ref);
	if (currTypeBinding == null) {
		if (ASTNodes.getParent(ref, ASTNode.PACKAGE_DECLARATION) != null) {
			return true; // reference in package-info.java
		}
		return false; // not in a type
	}
	if (!Modifier.isPublic(modifiers)) {
		if (!currTypeBinding.getPackage().getName().equals(typeBinding.getPackage().getName())) {
			return false; // not visible
		}
	}

	ASTNode parent= ref.getParent();
	while (parent instanceof Type) {
		parent= parent.getParent();
	}
	if (parent instanceof AbstractTypeDeclaration && parent.getParent() instanceof CompilationUnit) {
		return true;
	}

	if (typeBinding.isMember()) {
		if (fAnalyzer.isDeclaredInScope(typeBinding, ref, ScopeAnalyzer.TYPES | ScopeAnalyzer.CHECK_VISIBILITY))
			return false;
	}
	return true;
}
 

protected void removeLabel(SimpleName label) {
	if (fBranches != null) {
		fBranches.remove(makeString(label));
		if (fBranches.isEmpty()) {
			fBranches = null;
		}
	}
}
 

@Override
public final boolean visit(final SimpleName node) {
	Assert.isNotNull(node);
	final ITypeBinding binding= node.resolveTypeBinding();
	if (binding != null && binding.isTypeVariable() && !fBindings.containsKey(binding.getKey())) {
		fBindings.put(binding.getKey(), binding);
		fFound.add(binding);
	}
	return true;
}
 

@SuppressWarnings("unchecked")
private void validateUiFieldExistenceInUiXml(FieldDeclaration uiFieldDecl) {
  List<VariableDeclarationFragment> varDecls = uiFieldDecl.fragments();
  for (VariableDeclarationFragment varDecl : varDecls) {
    SimpleName fieldNameDecl = varDecl.getName();
    validateFieldExistenceInUiXml(
        (TypeDeclaration) uiFieldDecl.getParent(), fieldNameDecl,
        fieldNameDecl.getIdentifier());
  }
}
 

public static SimpleName[] findByProblems(ASTNode parent, SimpleName nameNode) {
	ArrayList<SimpleName> res= new ArrayList<SimpleName>();

	ASTNode astRoot = parent.getRoot();
	if (!(astRoot instanceof CompilationUnit)) {
		return null;
	}

	IProblem[] problems= ((CompilationUnit) astRoot).getProblems();
	int nameNodeKind= getNameNodeProblemKind(problems, nameNode);
	if (nameNodeKind == 0) { // no problem on node
		return null;
	}

	int bodyStart= parent.getStartPosition();
	int bodyEnd= bodyStart + parent.getLength();

	String name= nameNode.getIdentifier();

	for (int i= 0; i < problems.length; i++) {
		IProblem curr= problems[i];
		int probStart= curr.getSourceStart();
		int probEnd= curr.getSourceEnd() + 1;

		if (probStart > bodyStart && probEnd < bodyEnd) {
			int currKind= getProblemKind(curr);
			if ((nameNodeKind & currKind) != 0) {
				ASTNode node= NodeFinder.perform(parent, probStart, (probEnd - probStart));
				if (node instanceof SimpleName && name.equals(((SimpleName) node).getIdentifier())) {
					res.add((SimpleName) node);
				}
			}
		}
	}
	return res.toArray(new SimpleName[res.size()]);
}
 

public VariableDeclaration getVariableDeclaration() {
	//return variableDeclaration;
   	ASTNode node = this.variableDeclaration.recoverASTNode();
   	if(node instanceof SimpleName) {
   		return (VariableDeclaration)node.getParent();
   	}
   	else {
   		return (VariableDeclaration)node;
   	}
}
 

private static SimpleName getMethodInvocationName(MethodReference methodReference) {
	SimpleName name = null;
	if (methodReference instanceof ExpressionMethodReference) {
		name = ((ExpressionMethodReference) methodReference).getName();
	} else if (methodReference instanceof TypeMethodReference) {
		name = ((TypeMethodReference) methodReference).getName();
	} else if (methodReference instanceof SuperMethodReference) {
		name = ((SuperMethodReference) methodReference).getName();
	}
	return name;
}
 

private boolean hasConflict(int startPosition, SimpleName name, int flag) {
	ScopeAnalyzer analyzer= new ScopeAnalyzer(fCompilationUnit);
	IBinding[] declarationsInScope= analyzer.getDeclarationsInScope(startPosition, flag);
	for (int i= 0; i < declarationsInScope.length; i++) {
		IBinding decl= declarationsInScope[i];
		if (decl.getName().equals(name.getIdentifier()) && name.resolveBinding() != decl)
			return true;
	}
	return false;
}
 

private void replaceExpressionsWithConstant() throws JavaModelException {
	ASTRewrite astRewrite= fCuRewrite.getASTRewrite();
	AST ast= astRewrite.getAST();

	IASTFragment[] fragmentsToReplace= getFragmentsToReplace();
	for (int i= 0; i < fragmentsToReplace.length; i++) {
		IASTFragment fragment= fragmentsToReplace[i];
		ASTNode node= fragment.getAssociatedNode();
		boolean inTypeDeclarationAnnotation= isInTypeDeclarationAnnotation(node);
		if (inTypeDeclarationAnnotation && JdtFlags.VISIBILITY_STRING_PRIVATE == getVisibility())
			continue;

		SimpleName ref= ast.newSimpleName(fConstantName);
		Name replacement= ref;
		boolean qualifyReference= qualifyReferencesWithDeclaringClassName();
		if (!qualifyReference) {
			qualifyReference= inTypeDeclarationAnnotation;
		}
		if (qualifyReference) {
			replacement= ast.newQualifiedName(ast.newSimpleName(getContainingTypeBinding().getName()), ref);
		}
		TextEditGroup description= fCuRewrite.createGroupDescription(RefactoringCoreMessages.ExtractConstantRefactoring_replace);

		fragment.replace(astRewrite, replacement, description);
		if (fLinkedProposalModel != null)
			fLinkedProposalModel.getPositionGroup(KEY_NAME, true).addPosition(astRewrite.track(ref), false);
	}
}
 

private static String getSimpleName(Name name) {
	if (name.isQualifiedName()) {
		return ((QualifiedName) name).getName().getIdentifier();
	} else {
		return ((SimpleName) name).getIdentifier();
	}
}
 

@Override
public boolean visit(SimpleName node) {
	if (fFindUnqualifiedAccesses || fFindUnqualifiedStaticAccesses) {
		handleSimpleName(node);
	}
	return false;
}
 

private String getKey(SimpleName name) {
	String result = null;
	if(fCurrentMethod != null) {
		result = fCurrentMethod.toString() + "/" + name.getFullyQualifiedName();
	}else {
		result = "GLOBAL" + name.getFullyQualifiedName();
	}
	log("Creating key " + result);
	
	return result;
}
 

@Override
public boolean visit(SimpleName node) {
	if (node.isDeclaration()) {
		return true;
	}
	IBinding binding = node.resolveBinding();
	if (binding instanceof ITypeBinding) {
		processLocalTypeBinding((ITypeBinding) binding, fSelection.getVisitSelectionMode(node));
	}

	return true;
}
 

@Override
public boolean consumes(SemanticToken token) {
	SimpleName node = token.getNode();
	StructuralPropertyDescriptor location = node.getLocationInParent();
	if (location == VariableDeclarationFragment.NAME_PROPERTY || location == SingleVariableDeclaration.NAME_PROPERTY) {
		ASTNode parent = node.getParent();
		if (parent instanceof VariableDeclaration) {
			parent = parent.getParent();
			return parent == null || !(parent instanceof FieldDeclaration);
		}
	}
	return false;
}
 

public void visit(SimpleName node) {
	if(declaredVariables.contains(node.toString())) {
		String var = node.getIdentifier();
		if (!occurrences.containsKey(var))
			occurrences.put(var, -1);

		occurrences.put(var, occurrences.get(var) + 1);
	}
}