private static bool DoesMethodReturnDbSet(IdentifierNameSyntax methodIdent, SyntaxNodeAnalysisContext context, EFUsageContext efContext, EFCodeFirstClassInfo clsInfo)
{
var method = methodIdent.GetDeclaringMethod(context);
//TODO: Handle cases of lambda/Func<T, ...> invocation
if (method != null)
{
var returnStatements = method.DescendantNodes().OfType<ReturnStatementSyntax>();
//It has to be all so that we can be conclusive that all points of return a DbSet<T>
bool returnsDbSet = returnStatements.All(ret => ReturnStatementTracesBackToDbSet(ret, context, clsInfo));
return returnsDbSet;
}
return false;
}
