jaredpar

Just blogged about it
bsky.app/profile/cake...

Been working on this on and off since .NET preview 4, custom SDK together with source generator results in a really compelling end user story👍

YouTube video by TEDx Talks Tech Promised Everything. Did it deliver? | Scott Hanselman | TEDxPortland

Hey friends! I did a TEDx talk and it's now up on the TED Conferences YouTube. It's possibly the best and most important talk I've ever done.

I would ask that you watch it, and please SHARE it broadly and widely. Thank you! youtu.be/dVG8W-0p6vg #AI #Tech #TED

It is so neat seeing tech like this built on top of the dotnet run app.cs work that we're doing.

"dotnet cake.cs"

#dotnet #cake #devops #itshappening #staytuned

Check out all the improvements to file-based apps (dotnet run app.cs) in preview.6 that went out today!

github.com/dotnet/core/...

Another STP (Seattle to Portland) bike ride in the books. Did it in two days this year so a bit more relaxing. 4th time doing this ride and still amazed at how gorgeous the landscape is on this route. #stp

`dotnet run file.cs` is coming:

Allows running C# source files with no need for an explicit backing project. We call these file-based programs (as opposed to project-based programs).

github.com/dotnet/sdk/b...

Congrats!

.NET Lab (lab.razor.fyi) now has Code Actions 🚀 Very useful when you paste some code snippet and want to add missing usings. But it can do much more - all Roslyn code fixes are included.

null is a reserved keyword in C#. Been that way since 1.0.

Giggling at the thought of some support team member at blue sky getting added to this thread and just seeing the type of horror you can do with C# and some creativity

Weird. Just checked and it's working on my computer.

Spoiler sharplab.io#v2:C4LglgNgP...

Can you make this ToString call throw a NullReferenceException with ZERO operator overloading, reflection tricks, etc ...?

There are over 145,000 uses of <LangVersion>latest</LangVersion> on GitHub alone. Whether or not it's a bad idea is somewhat irrelevant at this point because it's a popular one.

By a lot I mean hundreds of thousands of occurrences

github.com/search?q=%2F...

It would if you used <LangVersion>latest though and there are a lot of customers that do that.

Can have lots of fun when operator== doesn't return bool

sharplab.io#v2:C4LgTgrgd...

The type null converts is a struct that throws on the conversion operator

sharplab.io#v2:C4LgTgrgd...

There about 3x String compared to Object

That is the thing though, you do not have to explicitly opt in to use the preview SDK. Simply having the preview SDK on your path is enough to start using it. This is one of the big reasons why we require explicit opt in.

The current design means to use a preview language feature you must, in your code base, have <LangVersion>preview. That removes all ambiguity as to what you're taking a dependency on.

We also find it beneficial to require that teams say "preview" when using preview language features. The moment we tie preview work to latest or say 14.0 expectations get set that this is final. Any breaks, changes, etc ... result in push back.

The reason why is that we ship the same compiler in both the current SDK (presently 9.0.x) and the in development SDK (presently 10.0.x). Can't flip _latest_ langversion in one without impacting the other.

This gets changed typically around RC1 of the .NET SDK.

No: it's not form forks of runtime

There are ~21,000 definitions of String.

.NET repos on GitHub are 40 times more likely to use dynamic than define a type called String