resulttypenode.java

是有关解释器的.用JAVA编写.可以解释一般的JAVA程序.

class ResultTypeNode extends EvaluatableNode
{
	VariableTypeNode vVariableTypeNode;

	static ResultTypeNode parserResultType(Environment env,Scanner s) throws ParserException, ScannerException
	{
		VariableTypeNode tmpVariableTypeNode= null;
		if(!isKeywordToken(s,"void"))
			tmpVariableTypeNode= VariableTypeNode.parserVariableType(env,s);
		else matchKeyword(s,"void");
		
		return new ResultTypeNode(tmpVariableTypeNode);
	}
	static boolean mIsResultType(Scanner s) throws ScannerException
	{
		return isKeywordToken(s,"void")||VariableTypeNode.mIsVariableType(s);
	}
	ResultTypeNode()
	{
		vVariableTypeNode = null;
	}
	ResultTypeNode(VariableTypeNode aVariableTypeNode)
	{
		vVariableTypeNode = aVariableTypeNode;
	}
	String format(int indent)
	{
		if(vVariableTypeNode!=null)return vVariableTypeNode.format(indent);
			else return "void";
	}
	Value evaluate(Environment env) throws InterpreterException
	{
		return null;
	}
}