///// <summary>
///// 读取条件表达式
///// </summary>
///// <param name="condition"></param>
///// <returns></returns>
//private ConditionExpression ReadConditionExpression(IValue condition)
//{
// //TODO:?:
// return null;
//}
/// <summary>
/// 读取表达式列表
/// </summary>
/// <param name="lastvalue"></param>
/// <returns></returns>
private ExpressionList ReadExpressionList(IValue lastvalue)
{
ExpressionList l = new ExpressionList();
l.Push(lastvalue);
while (matchToken(cur, TokenType.Comma))
{
Next();
var exp = ReadExpression(false);
if (exp != null)
{
l.Push(exp);
}
else
{
break;
}
}
return(l);
}
