private IExpression BuildNumvalExpression(ParseTreeNode node)
{
if (node.ChildNodes[1].FirstChild.Term.Name == "hexval")
{
var node2 = node.ChildNodes[1].FirstChild;
var hex1 = Convert.ToByte("0" + node2.FirstChild.FindTokenAndGetText(), 16);
//if (node2.ChildNodes.Count == 1)
//{
// return new NumvalExpression(hex1);
//}
//else
// ?????????????????????????????????????????????????????????????
{
var operation = node2.ChildNodes[1].FindTokenAndGetText();
if (operation == "-")
{
return(new NumvalExpression(hex1,
Convert.ToByte("0x" + node2.ChildNodes[1].LastChild.FindTokenAndGetText(), 16)));
}
else if (operation == ".")
{
var expression = new NumvalExpression();
var hexvalpointstart = node2.ChildNodes[1].FirstChild;
expression.Add(hex1);
foreach (var hexval1 in hexvalpointstart.ChildNodes)
{
expression.Add(Convert.ToByte("0x" + hexval1.LastChild.FindTokenAndGetText(), 16));
}
return(expression);
}
else
{
return(new NumvalExpression(hex1));
}
//else
//{
// throw new SemanticErrorException(node, @"Unknow operation in Numval expression", operation);
//}
}
}
throw new InvalidProgramException("Dec and Binary const not implemented");
}
private IExpression BuildNumvalExpression(ParseTreeNode node)
{
if (node.ChildNodes[1].ChildNodes[0].Term.Name == "hexval")
{
var node2 = node.ChildNodes[1].ChildNodes[0];
var hex1 = Convert.ToByte("0" + node2.ChildNodes[0].FindTokenAndGetText(), 16);
//if (node2.ChildNodes.Count == 1)
//{
// return new NumvalExpression(hex1);
//}
//else
// ?????????????????????????????????????????????????????????????
{
var operation = node2.ChildNodes[1].FindTokenAndGetText();
if (operation == "-")
{
return new NumvalExpression(hex1,
Convert.ToByte("0x" + node2.ChildNodes[1].ChildNodes[node2.ChildNodes[1].ChildNodes.Count - 1].FindTokenAndGetText(), 16));
}
else if (operation == ".")
{
var expression = new NumvalExpression();
var hexvalpointstart = node2.ChildNodes[1].ChildNodes[0];
expression.Add(hex1);
foreach (var hexval1 in hexvalpointstart.ChildNodes)
expression.Add(Convert.ToByte("0x" + hexval1.ChildNodes[node2.ChildNodes[1].ChildNodes.Count - 1].FindTokenAndGetText(), 16));
return expression;
}
else
{
return new NumvalExpression(hex1);
}
//else
//{
// throw new SemanticErrorException(node, @"Unknow operation in Numval expression", operation);
//}
}
}
throw new InvalidProgramException("Dec and Binary const not implemented");
}