public T GetResult <T>(string name)
{
ExpressionResultPair tail = this.GetTailWithValidate(name);
if ((!object.ReferenceEquals(typeof(T), tail.ResultType)))
{
string msg = $"The result type of '{name}' ('{tail.ResultType.Name}') does not match the supplied type argument ('{typeof(T).Name}')";
throw new ArgumentException(msg);
}
GenericExpressionResultPair <T> actualTail = (GenericExpressionResultPair <T>)tail;
return(actualTail.Result);
}
private void AddTemporaryHead(string headName)
{
GenericExpressionResultPair <int> pair = new GenericExpressionResultPair <int>();
pair.SetName(headName);
if (_myNameNodeMap.ContainsKey(headName) == false)
{
_myDependencies.AddTail(pair);
_myNameNodeMap.Add(headName, pair);
}
else
{
throw new ArgumentException($"An expression already exists at '{headName}'");
}
}
