Java Code Examples for org.eclipse.jdt.core.dom.ASTNode#VARIABLE_DECLARATION_STATEMENT

private ListRewrite evaluateListRewrite(ASTRewrite rewrite, ASTNode declNode) {
	switch (declNode.getNodeType()) {
		case ASTNode.METHOD_DECLARATION:
			return rewrite.getListRewrite(declNode, MethodDeclaration.MODIFIERS2_PROPERTY);
		case ASTNode.FIELD_DECLARATION:
			return rewrite.getListRewrite(declNode, FieldDeclaration.MODIFIERS2_PROPERTY);
		case ASTNode.VARIABLE_DECLARATION_EXPRESSION:
			return rewrite.getListRewrite(declNode, VariableDeclarationExpression.MODIFIERS2_PROPERTY);
		case ASTNode.VARIABLE_DECLARATION_STATEMENT:
			return rewrite.getListRewrite(declNode, VariableDeclarationStatement.MODIFIERS2_PROPERTY);
		case ASTNode.SINGLE_VARIABLE_DECLARATION:
			return rewrite.getListRewrite(declNode, SingleVariableDeclaration.MODIFIERS2_PROPERTY);
		case ASTNode.TYPE_DECLARATION:
			return rewrite.getListRewrite(declNode, TypeDeclaration.MODIFIERS2_PROPERTY);
		case ASTNode.ENUM_DECLARATION:
			return rewrite.getListRewrite(declNode, EnumDeclaration.MODIFIERS2_PROPERTY);
		case ASTNode.ANNOTATION_TYPE_DECLARATION:
			return rewrite.getListRewrite(declNode, AnnotationTypeDeclaration.MODIFIERS2_PROPERTY);
		case ASTNode.ENUM_CONSTANT_DECLARATION:
			return rewrite.getListRewrite(declNode, EnumConstantDeclaration.MODIFIERS2_PROPERTY);
		case ASTNode.ANNOTATION_TYPE_MEMBER_DECLARATION:
			return rewrite.getListRewrite(declNode, AnnotationTypeMemberDeclaration.MODIFIERS2_PROPERTY);
		default:
			throw new IllegalArgumentException("node has no modifiers: " + declNode.getClass().getName()); //$NON-NLS-1$
	}
}
 

private static Type getType(ASTNode node) {
	switch(node.getNodeType()){
		case ASTNode.SINGLE_VARIABLE_DECLARATION:
			return ((SingleVariableDeclaration) node).getType();
		case ASTNode.FIELD_DECLARATION:
			return ((FieldDeclaration) node).getType();
		case ASTNode.VARIABLE_DECLARATION_STATEMENT:
			return ((VariableDeclarationStatement) node).getType();
		case ASTNode.VARIABLE_DECLARATION_EXPRESSION:
			return ((VariableDeclarationExpression) node).getType();
		case ASTNode.METHOD_DECLARATION:
			return ((MethodDeclaration)node).getReturnType2();
		case ASTNode.PARAMETERIZED_TYPE:
			return ((ParameterizedType)node).getType();
		default:
			Assert.isTrue(false);
			return null;
	}
}
 

/**
  * The selection corresponds to a ParameterizedType (return type of method)
 * @param pt the type
 * @return the message
  */
private String parameterizedTypeSelected(ParameterizedType pt) {
	ASTNode parent= pt.getParent();
	if (parent.getNodeType() == ASTNode.METHOD_DECLARATION){
		fMethodBinding= ((MethodDeclaration)parent).resolveBinding();
		fParamIndex= -1;
		fEffectiveSelectionStart= pt.getStartPosition();
		fEffectiveSelectionLength= pt.getLength();
		setOriginalType(pt.resolveBinding());
	} else if (parent.getNodeType() == ASTNode.SINGLE_VARIABLE_DECLARATION){
		return singleVariableDeclarationSelected((SingleVariableDeclaration)parent);
	} else if (parent.getNodeType() == ASTNode.VARIABLE_DECLARATION_STATEMENT){
		return variableDeclarationStatementSelected((VariableDeclarationStatement)parent);
	} else if (parent.getNodeType() == ASTNode.FIELD_DECLARATION){
		return fieldDeclarationSelected((FieldDeclaration)parent);
	} else {
		return nodeTypeNotSupported();
	}
	return null;
}
 

private ListRewrite evaluateListRewrite(ASTRewrite rewrite, ASTNode declNode) {
	switch (declNode.getNodeType()) {
		case ASTNode.METHOD_DECLARATION:
			return rewrite.getListRewrite(declNode, MethodDeclaration.MODIFIERS2_PROPERTY);
		case ASTNode.FIELD_DECLARATION:
			return rewrite.getListRewrite(declNode, FieldDeclaration.MODIFIERS2_PROPERTY);
		case ASTNode.VARIABLE_DECLARATION_EXPRESSION:
			return rewrite.getListRewrite(declNode, VariableDeclarationExpression.MODIFIERS2_PROPERTY);
		case ASTNode.VARIABLE_DECLARATION_STATEMENT:
			return rewrite.getListRewrite(declNode, VariableDeclarationStatement.MODIFIERS2_PROPERTY);
		case ASTNode.SINGLE_VARIABLE_DECLARATION:
			return rewrite.getListRewrite(declNode, SingleVariableDeclaration.MODIFIERS2_PROPERTY);
		case ASTNode.TYPE_DECLARATION:
			return rewrite.getListRewrite(declNode, TypeDeclaration.MODIFIERS2_PROPERTY);
		case ASTNode.ENUM_DECLARATION:
			return rewrite.getListRewrite(declNode, EnumDeclaration.MODIFIERS2_PROPERTY);
		case ASTNode.ANNOTATION_TYPE_DECLARATION:
			return rewrite.getListRewrite(declNode, AnnotationTypeDeclaration.MODIFIERS2_PROPERTY);
		case ASTNode.ENUM_CONSTANT_DECLARATION:
			return rewrite.getListRewrite(declNode, EnumConstantDeclaration.MODIFIERS2_PROPERTY);
		case ASTNode.ANNOTATION_TYPE_MEMBER_DECLARATION:
			return rewrite.getListRewrite(declNode, AnnotationTypeMemberDeclaration.MODIFIERS2_PROPERTY);
		default:
			throw new IllegalArgumentException("node has no modifiers: " + declNode.getClass().getName()); //$NON-NLS-1$
	}
}
 

private static boolean isSingleDeclaration(ASTNode node) {
	int type= node.getNodeType();
	if (type == ASTNode.SINGLE_VARIABLE_DECLARATION)
		return true;
	if (type == ASTNode.VARIABLE_DECLARATION_FRAGMENT) {
		node= node.getParent();
		if (node.getNodeType() == ASTNode.VARIABLE_DECLARATION_STATEMENT) {
			VariableDeclarationStatement vs= (VariableDeclarationStatement)node;
			return vs.fragments().size() == 1;
		}
	}
	return false;
}
 

private static boolean isMultiDeclarationFragment(ASTNode node) {
	int nodeType= node.getNodeType();
	if (nodeType == ASTNode.VARIABLE_DECLARATION_FRAGMENT) {
		node= node.getParent();
		if (node.getNodeType() == ASTNode.VARIABLE_DECLARATION_STATEMENT) {
			VariableDeclarationStatement vs= (VariableDeclarationStatement)node;
			return vs.fragments().size() > 1;
		}
	}
	return false;
}
 

private ITypeBinding getPossibleSuperTypeBinding(ASTNode node) {
	if (fTypeKind == K_ANNOTATION) {
		return null;
	}

	AST ast= node.getAST();
	node= ASTNodes.getNormalizedNode(node);
	ASTNode parent= node.getParent();
	switch (parent.getNodeType()) {
		case ASTNode.METHOD_DECLARATION:
			if (node.getLocationInParent() == MethodDeclaration.THROWN_EXCEPTION_TYPES_PROPERTY) {
				return ast.resolveWellKnownType("java.lang.Exception"); //$NON-NLS-1$
			}
			break;
		case ASTNode.THROW_STATEMENT :
			return ast.resolveWellKnownType("java.lang.Exception"); //$NON-NLS-1$
		case ASTNode.SINGLE_VARIABLE_DECLARATION:
			if (parent.getLocationInParent() == CatchClause.EXCEPTION_PROPERTY) {
				return ast.resolveWellKnownType("java.lang.Exception"); //$NON-NLS-1$
			}
			break;
		case ASTNode.VARIABLE_DECLARATION_STATEMENT:
		case ASTNode.FIELD_DECLARATION:
			return null; // no guessing for LHS types, cannot be a supertype of a known type
		case ASTNode.PARAMETERIZED_TYPE:
			return null; // Inheritance doesn't help: A<X> z= new A<String>(); ->
	}
	ITypeBinding binding= ASTResolving.guessBindingForTypeReference(node);
	if (binding != null && !binding.isRecovered()) {
		return binding;
	}
	return null;
}
 

/**
 * Creates a placeholder node of the given type. <code>null</code> if the type is not supported
 * @param nodeType Type of the node to create. Use the type constants in {@link NodeInfoStore}.
 * @return Returns a place holder node.
 */
public final ASTNode newPlaceholderNode(int nodeType) {
	try {
		ASTNode node= this.ast.createInstance(nodeType);
		switch (node.getNodeType()) {
			case ASTNode.FIELD_DECLARATION:
				((FieldDeclaration) node).fragments().add(this.ast.newVariableDeclarationFragment());
				break;
			case ASTNode.MODIFIER:
				((Modifier) node).setKeyword(Modifier.ModifierKeyword.ABSTRACT_KEYWORD);
				break;
			case ASTNode.TRY_STATEMENT :
				((TryStatement) node).setFinally(this.ast.newBlock()); // have to set at least a finally block to be legal code
				break;
			case ASTNode.VARIABLE_DECLARATION_EXPRESSION :
				((VariableDeclarationExpression) node).fragments().add(this.ast.newVariableDeclarationFragment());
				break;
			case ASTNode.VARIABLE_DECLARATION_STATEMENT :
				((VariableDeclarationStatement) node).fragments().add(this.ast.newVariableDeclarationFragment());
				break;
			case ASTNode.PARAMETERIZED_TYPE :
				((ParameterizedType) node).typeArguments().add(this.ast.newWildcardType());
				break;
		}
		return node;
	} catch (IllegalArgumentException e) {
		return null;
	}
	}
 

private Statement convertStatement(org.eclipse.jdt.core.dom.Statement statement) {
  switch (statement.getNodeType()) {
    case ASTNode.ASSERT_STATEMENT:
      return convert((org.eclipse.jdt.core.dom.AssertStatement) statement);
    case ASTNode.BLOCK:
      return convert((org.eclipse.jdt.core.dom.Block) statement);
    case ASTNode.BREAK_STATEMENT:
      return convert((org.eclipse.jdt.core.dom.BreakStatement) statement);
    case ASTNode.CONSTRUCTOR_INVOCATION:
      return convert((org.eclipse.jdt.core.dom.ConstructorInvocation) statement);
    case ASTNode.CONTINUE_STATEMENT:
      return convert((org.eclipse.jdt.core.dom.ContinueStatement) statement);
    case ASTNode.DO_STATEMENT:
      return convert((org.eclipse.jdt.core.dom.DoStatement) statement);
    case ASTNode.EMPTY_STATEMENT:
      return new EmptyStatement(getSourcePosition(statement));
    case ASTNode.EXPRESSION_STATEMENT:
      return convert((org.eclipse.jdt.core.dom.ExpressionStatement) statement);
    case ASTNode.FOR_STATEMENT:
      return convert((org.eclipse.jdt.core.dom.ForStatement) statement);
    case ASTNode.ENHANCED_FOR_STATEMENT:
      return convert((org.eclipse.jdt.core.dom.EnhancedForStatement) statement);
    case ASTNode.IF_STATEMENT:
      return convert((org.eclipse.jdt.core.dom.IfStatement) statement);
    case ASTNode.LABELED_STATEMENT:
      return convert((org.eclipse.jdt.core.dom.LabeledStatement) statement);
    case ASTNode.RETURN_STATEMENT:
      return convert((org.eclipse.jdt.core.dom.ReturnStatement) statement);
    case ASTNode.SUPER_CONSTRUCTOR_INVOCATION:
      return convert((org.eclipse.jdt.core.dom.SuperConstructorInvocation) statement);
    case ASTNode.SWITCH_STATEMENT:
      return convert((org.eclipse.jdt.core.dom.SwitchStatement) statement);
    case ASTNode.SYNCHRONIZED_STATEMENT:
      return convert((org.eclipse.jdt.core.dom.SynchronizedStatement) statement);
    case ASTNode.THROW_STATEMENT:
      return convert((org.eclipse.jdt.core.dom.ThrowStatement) statement);
    case ASTNode.TRY_STATEMENT:
      return convert((org.eclipse.jdt.core.dom.TryStatement) statement);
    case ASTNode.TYPE_DECLARATION_STATEMENT:
      return convert((org.eclipse.jdt.core.dom.TypeDeclarationStatement) statement);
    case ASTNode.VARIABLE_DECLARATION_STATEMENT:
      return convert((org.eclipse.jdt.core.dom.VariableDeclarationStatement) statement);
    case ASTNode.WHILE_STATEMENT:
      return convert((org.eclipse.jdt.core.dom.WhileStatement) statement);
    default:
      throw internalCompilerError(
          "Unexpected type for Statement: %s", statement.getClass().getName());
  }
}
 

/**
 * Determines what kind of ASTNode has been selected.
 * @param node the node
 * @return  A non-null String containing an error message
 * is returned if the ChangeTypeRefactoring refactoring cannot be applied to the selected ASTNode.
 * A return value of null indicates a valid selection.
 */
private String determineSelection(ASTNode node) {
	if (node == null) {
		return RefactoringCoreMessages.ChangeTypeRefactoring_invalidSelection;
	} else {

		if (DEBUG) System.out.println("node nodeType= " + node.getClass().getName()); //$NON-NLS-1$
		if (DEBUG) System.out.println("parent nodeType= " + node.getParent().getClass().getName()); //$NON-NLS-1$
		if (DEBUG) System.out.println("GrandParent nodeType= " + node.getParent().getParent().getClass().getName()); //$NON-NLS-1$

		ASTNode parent= node.getParent();
		ASTNode grandParent= parent.getParent();
		if (grandParent == null)
			return nodeTypeNotSupported();

		// adjustment needed if part of a parameterized type is selected
		if (grandParent.getNodeType() == ASTNode.PARAMETERIZED_TYPE){
			node= grandParent;
		}

		// adjustment needed if part of a qualified name is selected
		ASTNode current= null;
		if (node.getNodeType() == ASTNode.QUALIFIED_NAME){
			current= node;
			while (current.getNodeType() == ASTNode.QUALIFIED_NAME){
				current= current.getParent();
			}
			if (current.getNodeType() != ASTNode.SIMPLE_TYPE){
				return nodeTypeNotSupported();
			}
			node= current.getParent();
		} else if (parent.getNodeType() == ASTNode.QUALIFIED_NAME){
			current= parent;
			while (current.getNodeType() == ASTNode.QUALIFIED_NAME){
				current= current.getParent();
			}
			if (current.getNodeType() != ASTNode.SIMPLE_TYPE){
				return nodeTypeNotSupported();
			}
			node= current.getParent();
		}

		fObject= node.getAST().resolveWellKnownType("java.lang.Object"); //$NON-NLS-1$
		switch (node.getNodeType()) {
			case ASTNode.SIMPLE_NAME :
				return simpleNameSelected((SimpleName)node);
			case ASTNode.VARIABLE_DECLARATION_STATEMENT :
				return variableDeclarationStatementSelected((VariableDeclarationStatement) node);
			case ASTNode.FIELD_DECLARATION :
				return fieldDeclarationSelected((FieldDeclaration) node);
			case ASTNode.SINGLE_VARIABLE_DECLARATION :
				return singleVariableDeclarationSelected((SingleVariableDeclaration) node);
			case ASTNode.PARAMETERIZED_TYPE:
				return parameterizedTypeSelected((ParameterizedType) node);
			default :
				return nodeTypeNotSupported();
		}
	}
}
 

/**
 * Adds a SuppressWarnings proposal if possible and returns whether parent nodes should be processed or not (and with what relevance).
 * 
 * @param cu the compilation unit
 * @param node the node on which to add a SuppressWarning token
 * @param warningToken the warning token to add
 * @param relevance the proposal's relevance
 * @param proposals collector to which the proposal should be added
 * @return <code>0</code> if no further proposals should be added to parent nodes, or the relevance of the next proposal
 * 
 * @since 3.6
 */
private static int addSuppressWarningsProposalIfPossible(ICompilationUnit cu, ASTNode node, String warningToken, int relevance, Collection<ICommandAccess> proposals) {

	ChildListPropertyDescriptor property;
	String name;
	boolean isLocalVariable= false;
	switch (node.getNodeType()) {
		case ASTNode.SINGLE_VARIABLE_DECLARATION:
			property= SingleVariableDeclaration.MODIFIERS2_PROPERTY;
			name= ((SingleVariableDeclaration) node).getName().getIdentifier();
			isLocalVariable= true;
			break;
		case ASTNode.VARIABLE_DECLARATION_STATEMENT:
			property= VariableDeclarationStatement.MODIFIERS2_PROPERTY;
			name= getFirstFragmentName(((VariableDeclarationStatement) node).fragments());
			isLocalVariable= true;
			break;
		case ASTNode.VARIABLE_DECLARATION_EXPRESSION:
			property= VariableDeclarationExpression.MODIFIERS2_PROPERTY;
			name= getFirstFragmentName(((VariableDeclarationExpression) node).fragments());
			isLocalVariable= true;
			break;
		case ASTNode.TYPE_DECLARATION:
			property= TypeDeclaration.MODIFIERS2_PROPERTY;
			name= ((TypeDeclaration) node).getName().getIdentifier();
			break;
		case ASTNode.ANNOTATION_TYPE_DECLARATION:
			property= AnnotationTypeDeclaration.MODIFIERS2_PROPERTY;
			name= ((AnnotationTypeDeclaration) node).getName().getIdentifier();
			break;
		case ASTNode.ENUM_DECLARATION:
			property= EnumDeclaration.MODIFIERS2_PROPERTY;
			name= ((EnumDeclaration) node).getName().getIdentifier();
			break;
		case ASTNode.FIELD_DECLARATION:
			property= FieldDeclaration.MODIFIERS2_PROPERTY;
			name= getFirstFragmentName(((FieldDeclaration) node).fragments());
			break;
		// case ASTNode.INITIALIZER: not used, because Initializer cannot have annotations
		case ASTNode.METHOD_DECLARATION:
			property= MethodDeclaration.MODIFIERS2_PROPERTY;
			name= ((MethodDeclaration) node).getName().getIdentifier() + "()"; //$NON-NLS-1$
			break;
		case ASTNode.ANNOTATION_TYPE_MEMBER_DECLARATION:
			property= AnnotationTypeMemberDeclaration.MODIFIERS2_PROPERTY;
			name= ((AnnotationTypeMemberDeclaration) node).getName().getIdentifier() + "()"; //$NON-NLS-1$
			break;
		case ASTNode.ENUM_CONSTANT_DECLARATION:
			property= EnumConstantDeclaration.MODIFIERS2_PROPERTY;
			name= ((EnumConstantDeclaration) node).getName().getIdentifier();
			break;
		default:
			return relevance;
	}

	String label= Messages.format(CorrectionMessages.SuppressWarningsSubProcessor_suppress_warnings_label, new String[] { warningToken, BasicElementLabels.getJavaElementName(name) });
	ASTRewriteCorrectionProposal proposal= new SuppressWarningsProposal(warningToken, label, cu, node, property, relevance);

	proposals.add(proposal);
	return isLocalVariable ? relevance - 1 : 0;
}