public static bool IsSignatureEqual(ProcState a, ProcState b, DbDriver dbDriver)
{
if (object.ReferenceEquals(a, b))
{
return(true);
}
if (a == null || b == null)
{
return(false);
}
var aFunc = a as FunctionState;
var bFunc = b as FunctionState;
if (aFunc != null && bFunc != null)
{
// If they're both functions, the return types need to match.
if (!dbDriver.StringEquals(aFunc.ReturnType, bFunc.ReturnType))
{
return(false);
}
}
else if (aFunc != null || bFunc != null)
{
// If one of them is a function but NOT both, they aren't equal.
return(false);
}
return(Enumerable.SequenceEqual(a.Parameters, b.Parameters, ProcParam.GetComparer(dbDriver)));
}