public override CompileResult Compile()
{
var prevIsAddress = Prev.GetType() == typeof(ExcelAddressExpression);
var prevIsOffset = Prev.GetType() == typeof(FunctionExpression) && ((FunctionExpression)Prev).ExpressionString.ToLower() == "offset";
var nextIsAddress = Next.GetType() == typeof(ExcelAddressExpression);
var nextIsOffset = Next.GetType() == typeof(FunctionExpression) && ((FunctionExpression)Next).ExpressionString.ToLower() == "offset";
if (!prevIsAddress && !prevIsOffset)
{
return(new CompileResult(eErrorType.Value));
}
if (!nextIsAddress && !nextIsOffset)
{
return(new CompileResult(eErrorType.Value));
}
if (prevIsAddress && nextIsOffset)
{
return(InternalCompile(Prev.Compile().Result.ToString(), Next.Compile().Result as ExcelDataProvider.IRangeInfo));
}
else if (prevIsOffset && nextIsAddress)
{
return(InternalCompile(Prev.Compile().Result as ExcelDataProvider.IRangeInfo, Next.Compile().Result.ToString()));
}
else if (prevIsOffset && nextIsOffset)
{
return(InternalCompile(Prev.Compile().Result as ExcelDataProvider.IRangeInfo, Next.Compile().Result as ExcelDataProvider.IRangeInfo));
}
return(new CompileResult(eErrorType.Value));
}