emptystatementnode.java

是有关解释器的.用JAVA编写.可以解释一般的JAVA程序.

class EmptyStatementNode extends ExecutableNode
{
	static EmptyStatementNode parserEmptyStatement(Environment env,Scanner s) throws ParserException, ScannerException
	{
		matchSimple(s,';');
		return new EmptyStatementNode();
	}
	static boolean mIsEmptyStatement(Scanner s) throws ScannerException	
	{
		Token t= s.token();
		if(t.isSimple())return ((SimpleToken)t).isStatementEnd();
			else return false;
	}
	String format(int indent)
	{
		return space(indent)+";\n";
	}
	Environment run(Environment env) throws InterpreterException
	{
		return env;
	}
	//type checker returns true
}