Java Code Examples for org.eclipse.jdt.core.dom.Modifier#STATIC

/**
 * Adds a new field to the {@link AST} using the given type and variable name. The method
 * returns a {@link TextEdit} which can then be applied using the {@link #applyTextEdit(TextEdit)} method.
 * 
 * @param type
 * @param varName
 * @return a {@link TextEdit} which represents the changes which would be made, or <code>null</code> if the field
 * can not be created.
 */
public TextEdit addField(String type, String varName, boolean publicField, boolean staticField, boolean finalField, String value) {
	
	if (isReadOnly())
		return null;

	if (!domInitialized)
		initDomAST();
	
	boolean isStatic = isBodyStatic();
	int modifiers = (!publicField) ? Modifier.PRIVATE : Modifier.PUBLIC;
	if (isStatic || staticField) {
		modifiers |= Modifier.STATIC;
	}
	if (finalField) {
		modifiers |= Modifier.FINAL;
	}
	
	ASTRewrite rewrite= ASTRewrite.create(parentDeclaration.getAST());
	
	VariableDeclarationFragment newDeclFrag = addFieldDeclaration(rewrite, parentDeclaration, modifiers, varName, type, value);

	TextEdit te = rewrite.rewriteAST(getDocument(), null);
	return te;
}
 

private void modifySourceStaticMethodInvocationsInTargetClass(MethodDeclaration newMethodDeclaration, ASTRewrite targetRewriter) {
	ExpressionExtractor extractor = new ExpressionExtractor();	
	List<Expression> sourceMethodInvocations = extractor.getMethodInvocations(sourceMethod.getBody());
	List<Expression> newMethodInvocations = extractor.getMethodInvocations(newMethodDeclaration.getBody());
	int i = 0;
	for(Expression expression : sourceMethodInvocations) {
		if(expression instanceof MethodInvocation) {
			MethodInvocation methodInvocation = (MethodInvocation)expression;
			IMethodBinding methodBinding = methodInvocation.resolveMethodBinding();
			if((methodBinding.getModifiers() & Modifier.STATIC) != 0 &&
					methodBinding.getDeclaringClass().isEqualTo(sourceTypeDeclaration.resolveBinding()) &&
					!additionalMethodsToBeMoved.containsKey(methodInvocation)) {
				AST ast = newMethodDeclaration.getAST();
				SimpleName qualifier = ast.newSimpleName(sourceTypeDeclaration.getName().getIdentifier());
				targetRewriter.set(newMethodInvocations.get(i), MethodInvocation.EXPRESSION_PROPERTY, qualifier, null);
				this.additionalTypeBindingsToBeImportedInTargetClass.add(sourceTypeDeclaration.resolveBinding());
			}
		}
		i++;
	}
}
 

private boolean isNonStaticField(ASTNode node){
	if (node instanceof SimpleName){
		SimpleName simpleName = (SimpleName) node;
		IBinding binding = simpleName.resolveBinding();
		if(binding != null && binding.getKind() == IBinding.VARIABLE) {
			IVariableBinding variableBinding = (IVariableBinding)binding;
			if(variableBinding.isField() && (variableBinding.getModifiers() & Modifier.STATIC) == 0) 
				return true;
		}
	}
	return false;
}
 

/**
 * Returns true iff 'methodDeclaration' represents a void static method named 'main' that takes a
 * single String[] parameter.
 */
private static boolean isMainMethod(MethodDeclaration methodDeclaration) {
  // Is it static?
  if ((methodDeclaration.getModifiers() & Modifier.STATIC) == 0) {
    return false;
  }
  // Does it return void?
  Type returnType = methodDeclaration.getReturnType2();
  if (!returnType.isPrimitiveType()) {
    return false;
  }
  if (((PrimitiveType) returnType).getPrimitiveTypeCode() != PrimitiveType.VOID) {
    return false;
  }
  // Is it called 'main'?
  if (!"main".equals(methodDeclaration.getName().getIdentifier())) {
    return false;
  }
  // Does it have a single parameter?
  if (methodDeclaration.parameters().size() != 1) {
    return false;
  }

  // Is the parameter's type String[]?
  SingleVariableDeclaration pt =
      getOnlyElement((List<SingleVariableDeclaration>) methodDeclaration.parameters());
  IVariableBinding vb = pt.resolveBinding();
  if (vb == null) {
    return false;
  }
  ITypeBinding tb = vb.getType();
  return tb != null && "java.lang.String[]".equals(tb.getQualifiedName());
}
 

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

	IBinding binding = token.getBinding();
	return binding != null && binding.getKind() == IBinding.METHOD && (binding.getModifiers() & Modifier.STATIC) == Modifier.STATIC;
}
 

private int getModifiers() {
	int flags = fVisibility;
	if (isDeclaredInStaticMethod()) {
		flags |= Modifier.STATIC;
	}

	return flags;
}
 

protected void processConstructorInvocation(ConstructorInvocation constructorInvocation) {
	IMethodBinding methodBinding = constructorInvocation.resolveConstructorBinding();
	String originClassName = methodBinding.getDeclaringClass().getQualifiedName();
	TypeObject originClassTypeObject = TypeObject.extractTypeObject(originClassName);
	String methodInvocationName = methodBinding.getName();
	String qualifiedName = methodBinding.getReturnType().getQualifiedName();
	TypeObject returnType = TypeObject.extractTypeObject(qualifiedName);
	ConstructorInvocationObject constructorInvocationObject = new ConstructorInvocationObject(originClassTypeObject, methodInvocationName, returnType);
	constructorInvocationObject.setConstructorInvocation(constructorInvocation);
	ITypeBinding[] parameterTypes = methodBinding.getParameterTypes();
	for(ITypeBinding parameterType : parameterTypes) {
		String qualifiedParameterName = parameterType.getQualifiedName();
		TypeObject typeObject = TypeObject.extractTypeObject(qualifiedParameterName);
		constructorInvocationObject.addParameter(typeObject);
	}
	ITypeBinding[] thrownExceptionTypes = methodBinding.getExceptionTypes();
	for(ITypeBinding thrownExceptionType : thrownExceptionTypes) {
		constructorInvocationObject.addThrownException(thrownExceptionType.getQualifiedName());
	}
	if((methodBinding.getModifiers() & Modifier.STATIC) != 0)
		constructorInvocationObject.setStatic(true);
	addConstructorInvocation(constructorInvocationObject);
	List<Expression> arguments = constructorInvocation.arguments();
	for(Expression argument : arguments) {
		if(argument instanceof SimpleName) {
			SimpleName argumentName = (SimpleName)argument;
			IBinding binding = argumentName.resolveBinding();
			if(binding != null && binding.getKind() == IBinding.VARIABLE) {
				IVariableBinding variableBinding = (IVariableBinding)binding;
				if(variableBinding.isParameter()) {
					PlainVariable variable = new PlainVariable(variableBinding);
					addParameterPassedAsArgumentInConstructorInvocation(variable, constructorInvocationObject);
				}
			}
		}
	}
}
 

private int getModifiers() {
	int flags= fVisibility;
	if (fDeclareFinal)
		flags |= Modifier.FINAL;
	if (fDeclareStatic)
		flags |= Modifier.STATIC;
    return flags;
}
 

protected boolean testModifier(IVariableBinding curr) {
	int modifiers= curr.getModifiers();
	int staticFinal= Modifier.STATIC | Modifier.FINAL;
	if ((modifiers & staticFinal) == staticFinal) {
		return false;
	}
	if (Modifier.isStatic(modifiers) && !Modifier.isStatic(getModifiers())) {
		return false;
	}
	return true;
}
 

private boolean isStaticMethodCall(ASTNode node) {
	if (node instanceof SimpleName){
		SimpleName simpleName = (SimpleName) node;
		IBinding binding = simpleName.resolveBinding();
		if(binding != null && binding.getKind() == IBinding.METHOD) {
			IMethodBinding methodBinding = (IMethodBinding)binding;
			if((methodBinding.getModifiers() & Modifier.STATIC) != 0) 
				return true;
		}
	}
	return false;
}
 

public static boolean isUiField(FieldDeclaration fieldDecl) {
  if ((fieldDecl.getModifiers() & Modifier.STATIC) != 0) {
    return false;
  }
  return (JavaASTUtils.findAnnotation(fieldDecl,
      UiBinderConstants.UI_FIELD_ANNOTATION_NAME) != null);
}
 

private boolean isNamedConstant(ASTNode node){
	if (node instanceof SimpleName){
		SimpleName simpleName = (SimpleName) node;
		IBinding binding = simpleName.resolveBinding();
		if(binding != null && binding.getKind() == IBinding.VARIABLE) {
			IVariableBinding variableBinding = (IVariableBinding)binding;
			if(variableBinding.isField() && (variableBinding.getModifiers() & Modifier.STATIC) != 0) 
				return true;
		}
	}
	return false;
}
 

private List<UMLAttribute> processFieldDeclaration(CompilationUnit cu, FieldDeclaration fieldDeclaration, boolean isInterfaceField, String sourceFile) {
	UMLJavadoc javadoc = generateJavadoc(fieldDeclaration);
	List<UMLAttribute> attributes = new ArrayList<UMLAttribute>();
	Type fieldType = fieldDeclaration.getType();
	List<VariableDeclarationFragment> fragments = fieldDeclaration.fragments();
	for(VariableDeclarationFragment fragment : fragments) {
		UMLType type = UMLType.extractTypeObject(cu, sourceFile, fieldType, fragment.getExtraDimensions());
		String fieldName = fragment.getName().getFullyQualifiedName();
		LocationInfo locationInfo = generateLocationInfo(cu, sourceFile, fragment, CodeElementType.FIELD_DECLARATION);
		UMLAttribute umlAttribute = new UMLAttribute(fieldName, type, locationInfo);
		VariableDeclaration variableDeclaration = new VariableDeclaration(cu, sourceFile, fragment);
		variableDeclaration.setAttribute(true);
		umlAttribute.setVariableDeclaration(variableDeclaration);
		umlAttribute.setJavadoc(javadoc);
		
		int fieldModifiers = fieldDeclaration.getModifiers();
		if((fieldModifiers & Modifier.PUBLIC) != 0)
			umlAttribute.setVisibility("public");
		else if((fieldModifiers & Modifier.PROTECTED) != 0)
			umlAttribute.setVisibility("protected");
		else if((fieldModifiers & Modifier.PRIVATE) != 0)
			umlAttribute.setVisibility("private");
		else if(isInterfaceField)
			umlAttribute.setVisibility("public");
		else
			umlAttribute.setVisibility("package");
		
		if((fieldModifiers & Modifier.FINAL) != 0)
			umlAttribute.setFinal(true);
		
		if((fieldModifiers & Modifier.STATIC) != 0)
			umlAttribute.setStatic(true);
		
		attributes.add(umlAttribute);
	}
	return attributes;
}
 

private void processFieldDeclaration(final ClassObject classObject, FieldDeclaration fieldDeclaration) {
	Type fieldType = fieldDeclaration.getType();
	ITypeBinding binding = fieldType.resolveBinding();
	List<CommentObject> fieldDeclarationComments = new ArrayList<CommentObject>();
	int fieldDeclarationStartPosition = fieldDeclaration.getStartPosition();
	int fieldDeclarationEndPosition = fieldDeclarationStartPosition + fieldDeclaration.getLength();
	for(CommentObject comment : classObject.commentList) {
		int commentStartPosition = comment.getStartPosition();
		int commentEndPosition = commentStartPosition + comment.getLength();
		if(fieldDeclarationStartPosition <= commentStartPosition && fieldDeclarationEndPosition >= commentEndPosition) {
			fieldDeclarationComments.add(comment);
		}
	}
	List<VariableDeclarationFragment> fragments = fieldDeclaration.fragments();
	for(VariableDeclarationFragment fragment : fragments) {
		String qualifiedName = binding.getQualifiedName();
		TypeObject typeObject = TypeObject.extractTypeObject(qualifiedName);
		typeObject.setArrayDimension(typeObject.getArrayDimension() + fragment.getExtraDimensions());
		FieldObject fieldObject = new FieldObject(typeObject, fragment.getName().getIdentifier());
		fieldObject.setClassName(classObject.getName());
		fieldObject.setVariableDeclarationFragment(fragment);
		fieldObject.addComments(fieldDeclarationComments);
		
		int fieldModifiers = fieldDeclaration.getModifiers();
		if((fieldModifiers & Modifier.PUBLIC) != 0)
			fieldObject.setAccess(Access.PUBLIC);
		else if((fieldModifiers & Modifier.PROTECTED) != 0)
			fieldObject.setAccess(Access.PROTECTED);
		else if((fieldModifiers & Modifier.PRIVATE) != 0)
			fieldObject.setAccess(Access.PRIVATE);
		else
			fieldObject.setAccess(Access.NONE);
		
		if((fieldModifiers & Modifier.STATIC) != 0)
			fieldObject.setStatic(true);
		
		classObject.addField(fieldObject);
	}
}
 

@Override
public boolean consumes(SemanticToken token) {
	IBinding binding= token.getBinding();
	return binding != null && binding.getKind() == IBinding.VARIABLE && ((IVariableBinding)binding).isField() && (binding.getModifiers() & Modifier.STATIC) == Modifier.STATIC;
}
 

@Override
public boolean consumes(SemanticToken token) {
	IBinding binding= token.getBinding();
	return binding != null && binding.getKind() == IBinding.VARIABLE && ((IVariableBinding)binding).isField() && (binding.getModifiers() & (Modifier.FINAL | Modifier.STATIC)) == (Modifier.FINAL | Modifier.STATIC);
}
 

private ASTRewrite doAddField(ASTRewrite rewrite, ASTNode nodeToAssign, ITypeBinding typeBinding, int index) {
	boolean isParamToField= nodeToAssign.getNodeType() == ASTNode.SINGLE_VARIABLE_DECLARATION;

	ASTNode newTypeDecl= ASTResolving.findParentType(nodeToAssign);
	if (newTypeDecl == null) {
		return null;
	}

	Expression expression= isParamToField ? ((SingleVariableDeclaration) nodeToAssign).getName() : ((ExpressionStatement) nodeToAssign).getExpression();

	AST ast= newTypeDecl.getAST();

	createImportRewrite((CompilationUnit) nodeToAssign.getRoot());

	BodyDeclaration bodyDecl= ASTResolving.findParentBodyDeclaration(nodeToAssign);
	Block body;
	if (bodyDecl instanceof MethodDeclaration) {
		body= ((MethodDeclaration) bodyDecl).getBody();
	} else if (bodyDecl instanceof Initializer) {
		body= ((Initializer) bodyDecl).getBody();
	} else {
		return null;
	}

	IJavaProject project= getCompilationUnit().getJavaProject();
	boolean isAnonymous= newTypeDecl.getNodeType() == ASTNode.ANONYMOUS_CLASS_DECLARATION;
	boolean isStatic= Modifier.isStatic(bodyDecl.getModifiers()) && !isAnonymous;
	int modifiers= Modifier.PRIVATE;
	if (isStatic) {
		modifiers |= Modifier.STATIC;
	}

	VariableDeclarationFragment newDeclFrag= addFieldDeclaration(rewrite, newTypeDecl, modifiers, expression, nodeToAssign, typeBinding, index);
	String varName= newDeclFrag.getName().getIdentifier();

	Assignment assignment= ast.newAssignment();
	assignment.setRightHandSide((Expression) rewrite.createCopyTarget(expression));

	boolean needsThis= StubUtility.useThisForFieldAccess(project);
	if (isParamToField) {
		needsThis |= varName.equals(((SimpleName) expression).getIdentifier());
	}

	SimpleName accessName= ast.newSimpleName(varName);
	if (needsThis) {
		FieldAccess fieldAccess= ast.newFieldAccess();
		fieldAccess.setName(accessName);
		if (isStatic) {
			String typeName= ((AbstractTypeDeclaration) newTypeDecl).getName().getIdentifier();
			fieldAccess.setExpression(ast.newSimpleName(typeName));
		} else {
			fieldAccess.setExpression(ast.newThisExpression());
		}
		assignment.setLeftHandSide(fieldAccess);
	} else {
		assignment.setLeftHandSide(accessName);
	}

	ASTNode selectionNode;
	if (isParamToField) {
		// assign parameter to field
		ExpressionStatement statement= ast.newExpressionStatement(assignment);
		int insertIdx= findAssignmentInsertIndex(body.statements(), nodeToAssign) + index;
		rewrite.getListRewrite(body, Block.STATEMENTS_PROPERTY).insertAt(statement, insertIdx, null);
		selectionNode= statement;
	} else {
		if (needsSemicolon(expression)) {
			rewrite.replace(expression, ast.newExpressionStatement(assignment), null);
		} else {
			rewrite.replace(expression, assignment, null);
		}
		selectionNode= nodeToAssign;
	}

	addLinkedPosition(rewrite.track(newDeclFrag.getName()), false, KEY_NAME + index);
	if (!isParamToField) {
		FieldDeclaration fieldDeclaration= (FieldDeclaration) newDeclFrag.getParent();
		addLinkedPosition(rewrite.track(fieldDeclaration.getType()), false, KEY_TYPE);
	}
	addLinkedPosition(rewrite.track(accessName), true, KEY_NAME + index);
	IVariableBinding variableBinding= newDeclFrag.resolveBinding();
	if (variableBinding != null) {
		SimpleName[] linkedNodes= LinkedNodeFinder.findByBinding(nodeToAssign.getRoot(), variableBinding);
		for (int i= 0; i < linkedNodes.length; i++) {
			addLinkedPosition(rewrite.track(linkedNodes[i]), false, KEY_NAME + index);
		}
	}
	setEndPosition(rewrite.track(selectionNode));

	return rewrite;
}
 

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();
					}
				}
			}
		}
	}
}
 

@Override
public boolean consumes(SemanticToken token) {
	IBinding binding = token.getBinding();
	return binding != null && binding.getKind() == IBinding.VARIABLE && ((IVariableBinding) binding).isField() && (binding.getModifiers() & Modifier.STATIC) == Modifier.STATIC;
}
 

@Override
public boolean consumes(SemanticToken token) {
	IBinding binding = token.getBinding();
	return binding != null && binding.getKind() == IBinding.VARIABLE && ((IVariableBinding) binding).isField() && (binding.getModifiers() & (Modifier.FINAL | Modifier.STATIC)) == (Modifier.FINAL | Modifier.STATIC);
}