/// <summary>
/// Called by an expression when it references another expression in the engine
/// </summary>
/// <param name="tailName"></param>
/// <param name="context"></param>
internal void AddDependency(string tailName, ExpressionContext context)
{
ExpressionResultPair actualTail = this.GetTail(tailName);
string headName = context.CalcEngineExpressionName;
ExpressionResultPair actualHead = this.GetTail(headName);
// An expression could depend on the same reference more than once (ie: "a + a * a")
_myDependencies.AddDepedency(actualTail, actualHead);
}
public void Add(string atomName, string expression, ExpressionContext context)
{
Utility.AssertNotNull(atomName, "atomName");
Utility.AssertNotNull(expression, "expression");
Utility.AssertNotNull(context, "context");
BatchLoadInfo info = new BatchLoadInfo(atomName, expression, context);
_myNameInfoMap.Add(atomName, info);
_myDependencies.AddTail(atomName);
ICollection <string> references = this.GetReferences(expression, context);
foreach (string reference in references)
{
_myDependencies.AddTail(reference);
_myDependencies.AddDepedency(reference, atomName);
}
}
