protected IDisposable LocalCallProvider(ICallProvider callProvider)
{
var old = CallProvider;
return(Helpers.Disposable(
() => CallProvider = new AggregateCallProvider()
.Register(new AggregateCallProvider()
.Register(callProvider)
.Register(CallProvider)),
() => CallProvider = old));
}
private FormulaCompiler With(ICallProvider provider)
{
if (CallProvider == null)
{
CallProvider = provider;
}
else
{
if (CallProvider is AggregateCallProvider)
{
((AggregateCallProvider)CallProvider).Register(provider);
}
else
{
CallProvider = new AggregateCallProvider()
.Register(CallProvider)
.Register(provider);
}
}
return(this);
}