org.eclipse.jdt.core.dom.ASTNode#toString ( )源码实例Demo

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;
}
 

public static List<Expression> getArguments(ASTNode invocation) {
	switch (invocation.getNodeType()) {
		case ASTNode.METHOD_INVOCATION:
			return ((MethodInvocation)invocation).arguments();
		case ASTNode.SUPER_METHOD_INVOCATION:
			return ((SuperMethodInvocation)invocation).arguments();
			
		case ASTNode.CONSTRUCTOR_INVOCATION:
			return ((ConstructorInvocation)invocation).arguments();
		case ASTNode.SUPER_CONSTRUCTOR_INVOCATION:
			return ((SuperConstructorInvocation)invocation).arguments();
			
		case ASTNode.CLASS_INSTANCE_CREATION:
			return ((ClassInstanceCreation)invocation).arguments();
		case ASTNode.ENUM_CONSTANT_DECLARATION:
			return ((EnumConstantDeclaration)invocation).arguments();
			
		default:
			throw new IllegalArgumentException(invocation.toString());
	}
}
 

public static ChildListPropertyDescriptor getArgumentsProperty(ASTNode invocation) {
	switch (invocation.getNodeType()) {
		case ASTNode.METHOD_INVOCATION:
			return MethodInvocation.ARGUMENTS_PROPERTY;
		case ASTNode.SUPER_METHOD_INVOCATION:
			return SuperMethodInvocation.ARGUMENTS_PROPERTY;
			
		case ASTNode.CONSTRUCTOR_INVOCATION:
			return ConstructorInvocation.ARGUMENTS_PROPERTY;
		case ASTNode.SUPER_CONSTRUCTOR_INVOCATION:
			return SuperConstructorInvocation.ARGUMENTS_PROPERTY;
			
		case ASTNode.CLASS_INSTANCE_CREATION:
			return ClassInstanceCreation.ARGUMENTS_PROPERTY;
		case ASTNode.ENUM_CONSTANT_DECLARATION:
			return EnumConstantDeclaration.ARGUMENTS_PROPERTY;
			
		default:
			throw new IllegalArgumentException(invocation.toString());
	}
}
 

public static Expression getExpression(ASTNode invocation) {
	switch (invocation.getNodeType()) {
		case ASTNode.METHOD_INVOCATION:
			return ((MethodInvocation)invocation).getExpression();
		case ASTNode.SUPER_METHOD_INVOCATION:
			return null;
			
		case ASTNode.CONSTRUCTOR_INVOCATION:
			return null;
		case ASTNode.SUPER_CONSTRUCTOR_INVOCATION:
			return ((SuperConstructorInvocation)invocation).getExpression();
			
		case ASTNode.CLASS_INSTANCE_CREATION:
			return ((ClassInstanceCreation)invocation).getExpression();
		case ASTNode.ENUM_CONSTANT_DECLARATION:
			return null;
			
		default:
			throw new IllegalArgumentException(invocation.toString());
	}
}
 

public static IMethodBinding resolveBinding(ASTNode invocation) {
	switch (invocation.getNodeType()) {
		case ASTNode.METHOD_INVOCATION:
			return ((MethodInvocation)invocation).resolveMethodBinding();
		case ASTNode.SUPER_METHOD_INVOCATION:
			return ((SuperMethodInvocation)invocation).resolveMethodBinding();
			
		case ASTNode.CONSTRUCTOR_INVOCATION:
			return ((ConstructorInvocation)invocation).resolveConstructorBinding();
		case ASTNode.SUPER_CONSTRUCTOR_INVOCATION:
			return ((SuperConstructorInvocation)invocation).resolveConstructorBinding();
			
		case ASTNode.CLASS_INSTANCE_CREATION:
			return ((ClassInstanceCreation)invocation).resolveConstructorBinding();
		case ASTNode.ENUM_CONSTANT_DECLARATION:
			return ((EnumConstantDeclaration)invocation).resolveConstructorBinding();
			
		default:
			throw new IllegalArgumentException(invocation.toString());
	}
}
 

public static String buildASTLabel(ASTNode node) {
	String label = node.getClass().getSimpleName();
	if (node instanceof Expression) {
		if (node.getClass().getSimpleName().endsWith("Literal")) {
			return label + "(" + node.toString() + ")";
		}
		int type = node.getNodeType();
		switch (type) {
		case ASTNode.INFIX_EXPRESSION:
			return label + "(" + ((InfixExpression) node).getOperator().toString() + ")";
		case ASTNode.SIMPLE_NAME:
			return label + "(" + node.toString() + ")";
		case ASTNode.POSTFIX_EXPRESSION:
			return label + "(" + ((PostfixExpression) node).getOperator().toString() + ")";
		case ASTNode.PREFIX_EXPRESSION:
			return label + "(" + ((PrefixExpression) node).getOperator().toString() + ")";
		default:
			break;
		}
	} else if (node instanceof Modifier) {
		return label + "(" + node.toString() + ")";
	} else if (node instanceof Type) {
		if (node instanceof PrimitiveType)
			return label + "(" + node.toString() + ")";
	} else if (node instanceof TextElement) {
		return label + "(" + node.toString() + ")";
	} else if (node instanceof TagElement) {
		String tag = ((TagElement) node).getTagName();
		if (tag == null)
			return label;
		return label + "(" + tag + ")";
	}
	return label;
}