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  • Aug 01 22:07
    User @CyrusNajmabadi unbanned @VBAndCs
  • May 13 18:16
    @CyrusNajmabadi banned @Korporal
  • Jan 29 18:46
    @CyrusNajmabadi banned @VBAndCs
  • Jan 16 2021 19:06
    @CyrusNajmabadi banned @JuliusRFriedman_twitter
  • Nov 01 2020 06:15
    @CyrusNajmabadi banned @juliusfriedman
  • Jan 31 2019 21:39

    gafter on master

    Propose Feb 11 agenda (#2187) (compare)

  • Jan 31 2019 21:39
    gafter closed #2187
  • Jan 31 2019 19:42
    gafter edited #2115
  • Jan 31 2019 15:46
    jcouv edited #1565
  • Jan 31 2019 14:51
    yigitgursoy closed #1958
  • Jan 31 2019 13:43
    ichensky closed #2190
  • Jan 31 2019 12:17
    ichensky opened #2190
  • Jan 31 2019 04:38
    MarkPflug edited #2189
  • Jan 31 2019 04:37
    MarkPflug edited #2189
  • Jan 31 2019 04:37
    MarkPflug edited #2189
  • Jan 31 2019 04:36
    MarkPflug opened #2189
  • Jan 30 2019 23:15
    MohammadHamdyGhanem opened #2188
  • Jan 30 2019 20:01
    gafter review_requested #2187
  • Jan 30 2019 20:01
    gafter review_requested #2187
  • Jan 30 2019 20:01
    gafter review_requested #2187
masonwheeler
@masonwheeler

It didn't help Borland that VB programmers were substantially more common and generally less expensive as well.

Yeah, that's the next step from my "what does matter," above. When companies have trouble hiring devs for your language, it makes them less inclined to use your language.

And they never understood that. It's the same old story of the Blockbuster executives who, even in the face of Netflix bearing down on them like a steamroller approaching a cartoon coyote, didn't want to get rid of late fees because they were bringing in too much money.
COCPORN
@COCPORN
I am a little stumped at something I am seeing. I am implementing an interface and deriving from an abstract class which implements some of the methods in the interface. Yet VS and the compiler both seem to force me to implement the methods in the derived class. There is a 100% chance I am doing this wrong, yet I cannot really see how. Any gut reactions that would help me on my journey to create the best rock song ever?
COCPORN
@COCPORN
Figured it out. I will go find my seat at the back of the shortbus. :) Thanks for being my rubber duck.
masonwheeler
@masonwheeler
What was the problem?
Sam
@MgSam
Will the "Summer of C#" have public meeting notes?
CyrusNajmabadi
@CyrusNajmabadi
I would recommend asking Fred that on discord.
masonwheeler
@masonwheeler
After enabling nullables, I think the single most irritating issue it causes is all the gratuitous !s I have to stick on the end of ToString calls to shut the compiler up. Whose brillant idea was it to specify that as returning string? :interrobang:
masonwheeler
@masonwheeler

Oh, here's a fun one I just ran across.

Action<Foo> bar = myObj != null ? myObj.MyMethod : someOtherAction; //perfectly valid
Action<Foo> bar = myObj?.MyMethod ?? someOtherAction; //compiler error CS8978: 'method group' cannot be made nullable

What the what?

HaloFour
@HaloFour
I guess because method groups don't really have a type?
CyrusNajmabadi
@CyrusNajmabadi
Whose brillant idea was it to specify that as returning string? :interrobang:
This was the runtime
You're welcome to leave them feedback
However that signature is accurate as there are cases where types return null for To string
ToString
So if you don't annotate that correctly, you could end up in places where you still get a null ref at runtime.
What the what?
Feel free to open language discussion at dotnet/csharplang if you want this to be supported.
In this case it would likely be a request about inference working in ?? (Though I haven't investigated to see if that's what is the issue here)
Antony Male
@canton7

After enabling nullables, I think the single most irritating issue it causes is all the gratuitous !s I have to stick on the end of ToString calls to shut the compiler up. Whose brillant idea was it to specify that as returning string? :interrobang:

@masonwheeler https://stackoverflow.com/a/69944733/1086121

So unless you're calling object.ToString(), or calling ToString on a generic type, the signature almost certainly returns a non-nullable string. When you override ToString, the VS-generated code returns string
masonwheeler
@masonwheeler
...so why exactly is a variable declared inside a do ... while block considered "not in scope" in the while clause?
Antony Male
@canton7
I suspect simply, because traditionally the { and } introduce a new scope.
CyrusNajmabadi
@CyrusNajmabadi
Primarily because that's kinda how blocks work. I can't think of any case where sometime defined in a block leak into an outer scope.
David Arno
@DavidArno
Not sure if anyone uses this these days but just in case, I’m trying to communicate with @CyrusNajmabadi but he seems determined to censor every post I make and won’t explain his actions. Hoping I can engage him here in a private chat to try and get to the bottom of things.
Bernd Baumanns
@bernd5
you can try on discord
David Arno
@DavidArno
@bernd5 thanks I didn’t realise discord supported private messages. I’ve tried there too. Cheers.
CyrusNajmabadi
@CyrusNajmabadi
Since it was brought up here. The posts were hidden for being off topic. Posts on GitHub.com/dotnet/csharplang have to be on the discussion topic they are on.
David Arno
@DavidArno
Yes, you already said that in the discussion itself. It's a great shame that MS have allowed someone like yourself to be a moderator of such an important forum. But they have, and I just have to "suck it up" as there's nothing I can do about that.
CyrusNajmabadi
@CyrusNajmabadi
@DavidArno I cannot respond on discord as you have left the server.
It's a great shame that MS have allowed someone like yourself to be a moderator of such an important forum.
Everyone in the dotnet org can moderate dotnet communities.
As mentioned in the thread and offline, we ask that people keep their posts on topic. Continued off topic posts will be marked as such.
and I just have to "suck it up" as there's nothing I can do about that.
Correct. You need to follow the rules of these communities if you wish to continue being allowed to participate in them.
CyrusNajmabadi
@CyrusNajmabadi
If you're not ok with the literal project owners and repo maintainers moderating their own forums, I'm not sure what to tell you.
CodeChops
@Code-Chops
Hello. At the moment I am using GenericMath (which is in preview).Does anyone know how I can cast INumber<TPrimitive> to an primitive integral type in C# without much overhead? I need this in order to access indices of arrays, lists, etc.
CyrusNajmabadi
@CyrusNajmabadi
you should be able to do INumber<...> n = ... then int x = (int)n;
masonwheeler
@masonwheeler
Dictionary<TKey, TValue>.TryGetValue defines its out param as [MaybeNullWhen(false)] out TValue value. So why does the compiler consider it nullable in the following code?
var c = dict.TryGetValue(name, out var value);
DoSomething(name, c); //no shenanigans here such as passing c by ref
if (c)
{
   DoSomethingElse(value); //compiler believes value might be null
}
HaloFour
@HaloFour
Because the flow analysis doesn't track the value when you assign it to a variable
masonwheeler
@masonwheeler
*blink blink* Then what's the point of having it at all?
HaloFour
@HaloFour
It works when the TryGetValue is in the if statement
CyrusNajmabadi
@CyrusNajmabadi
@masonwheeler if you want that scenario to work, please open a discussion at Roslyn.
Currently the compiler doesn't track the relation between variables. But if you can come up with a good specification for that (and/or are willing to provide a good impl) I think it has a high chance of being taken.
HaloFour
@HaloFour
I think there might be an open discussion about it
CyrusNajmabadi
@CyrusNajmabadi
regardless, this channel is not tracked. Best to use github or discord for these questions/discussions. thanks!