public void OnNext(TSource value)
{
var key = default(TKey);
try
{
key = _parent._keySelector(value);
}
catch (Exception exception)
{
Error(exception);
return;
}
var fireNewMapEntry = false;
var writer = default(ISubject <TElement>);
try
{
if (!_map.TryGetValue(key, out writer))
{
writer = new Subject <TElement>();
_map.Add(key, writer);
fireNewMapEntry = true;
}
}
catch (Exception exception)
{
Error(exception);
return;
}
if (fireNewMapEntry)
{
var group = new GroupedObservable <TKey, TElement>(key, writer, _parent._refCountDisposable);
_observer.OnNext(group);
}
var element = default(TElement);
try
{
element = _parent._elementSelector(value);
}
catch (Exception exception)
{
Error(exception);
return;
}
writer.OnNext(element);
}
public void OnNext(TSource value)
{
var key = default(TKey);
try
{
key = _parent._keySelector(value);
}
catch (Exception exception)
{
Error(exception);
return;
}
var fireNewMapEntry = false;
var writer = default(ISubject <TElement>);
try
{
//
// Note: The box instruction in the IL will be erased by the JIT in case T is
// a value type. In fact, the whole if block will go away and we'll end
// up with nothing but the TryGetValue check below.
//
// // var fireNewMapEntry = false;
// C:\Projects\Rx\Rx\Experimental\Main\Source\Rx\System.Reactive.Linq\Reactive\Linq\Observable\GroupBy.cs @ 67:
// 000007fb`6d544b80 48c7452800000000 mov qword ptr [rbp+28h],0
//
// // var writer = default(ISubject<TElement>);
// C:\Projects\Rx\Rx\Experimental\Main\Source\Rx\System.Reactive.Linq\Reactive\Linq\Observable\GroupBy.cs @ 66:
// 000007fb`6d544b88 c6453400 mov byte ptr [rbp+34h],0
//
// // if (!_map.TryGetValue(key, out writer))
// C:\Projects\Rx\Rx\Experimental\Main\Source\Rx\System.Reactive.Linq\Reactive\Linq\Observable\GroupBy.cs @ 86:
// 000007fb`6d544b8c 488b4560 mov rax,qword ptr [rbp+60h]
// ...
//
if (key == null)
{
if (_null == null)
{
_null = new Subject <TElement>();
fireNewMapEntry = true;
}
writer = _null;
}
else
{
if (!_map.TryGetValue(key, out writer))
{
writer = new Subject <TElement>();
_map.Add(key, writer);
fireNewMapEntry = true;
}
}
}
catch (Exception exception)
{
Error(exception);
return;
}
if (fireNewMapEntry)
{
var group = new GroupedObservable <TKey, TElement>(key, writer, _parent._refCountDisposable);
_observer.OnNext(group);
}
var element = default(TElement);
try
{
element = _parent._elementSelector(value);
}
catch (Exception exception)
{
Error(exception);
return;
}
writer.OnNext(element);
}