Jonas Nyrup

Staff Software Engineer at Foreflight.
Computer Scientist.
Co-author of #FluentAssertions

[Jonas Nyrup @jnyrup]

@ddoomen Kill 'em with fire.

Mads Torgersen also hates them.
https://t.co/uwD6bR5MT2

[Jonas Nyrup @jnyrup]

@Aaronontheweb Thanks for the compliment.
I strongly agree that unused code should just go away.
That also alleviates the need to discuss the semantics.

[Jonas Nyrup @jnyrup]

@ddoomen Relistening to the Doom soundtrack brings me back to playing it as a kid in the mid 90s.

[Jonas Nyrup @jnyrup]

@Aaronontheweb @BKAngryKing To be fair in point 2, Where(i => i != item) doesn't have the same behavior as Except([item]). The latter compares using Equals and skips duplicate items from `collection`.

[Jonas Nyrup @jnyrup]

@jcouv A great showcase for extension members on statics: polyfilling and multitargeting TFMs
https://t.co/qegkE4SkFM

[Jonas Nyrup @jnyrup]

Just finished reading "The Elements of Programming Style" from 1973 by Kernighan & Plauger.
Both insightful and a bit terrifying how few of the 50+ problems in the Fortran and PL/I examples have obsoleted since then.

[Jonas Nyrup @jnyrup]

@KStrubeG @Aaronontheweb In .NET 9 the JIT can convert some loops to downwards counting.
https://t.co/7AJCkCkBZM

[Jonas Nyrup @jnyrup]

@ddoomen Similar to https://t.co/lYTj3uGyY1 or https://t.co/sDH4lpdEf4?

[Jonas Nyrup @jnyrup]

🚀 Exciting News! Fluent Assertions is partnering with @XceedSoftware to bring our project to new heights! With their resources and support, we’ll continue evolving and enhancing features. Thanks for your support! #FluentAssertions #XceedSoftware #OpenSource #InnovationNuGet

[Jonas Nyrup @jnyrup]

@ddoomen I've tried covenant by @firstdrafthell to get a quick overview.
https://t.co/oafP8womV1

[Jonas Nyrup @jnyrup]

@ddoomen The expectation drives what members BeEquivalentTo uses, so the write only property is ignored since expected doesn't have that member.

[Roslynator @roslynator]

Big thanks to @Microsoft for donating $1000.00 to Roslynator project!

I thank you for creating Roslyn which made Roslynator possible!

[Jonas Nyrup @jnyrup]

5 years ago I learned about the Type-Dictionary Trick in C#
https://t.co/G6BK1tZdqv

Recently, I finally found a place to apply it to remove a lookup in a ConcurrentDictionary
https://t.co/yOxnoEOKRL

[Jonas Nyrup @jnyrup]

@awesomekling The .NET BCL applied this trick just 3 weeks ago to fix a 4% regression in a perf test.
https://t.co/93qIwllED0

[Jonas Nyrup @jnyrup]

@EgorBo .NET 9 also has this PR with improvements to insertion of vzeroupper for managed->unmanaged transitions.
https://t.co/baIsiib1iV

I had an educating hunt for that issue in:
https://t.co/67BVrTG8yB

[Jonas Nyrup @jnyrup]

@ddoomen With libfuzzer-dotnet (alternative to afl-fuzz) I've found it even easier to fuzz .NET on Windows with SharpFuzz.

I've successfully used it at work to find bugs in various parsers with ~20 line fuzzing harnesses

[Jonas Nyrup @jnyrup]

@ddoomen Anything that makes .net developers fuzz more or improves/eases the experience. We have SharpFuzz, but I'm flabbergasted why fuzzing doesn't seem more widespread in the .net ecosystem.

[Jonas Nyrup @jnyrup]

@BKAngryKing @markrendle += will use one lookup to read the value and another lookup when storing the new value.

[Greg Linares (Laughing Mantis) @Laughing_Mantis]

Since I'm 6 drinks in for 20 bucks, let me tell you all about the story of how the first Microsoft Office 2007 vulnerability was discovered, or how it wasn't.

This was a story I was gonna save for a book but fuck it, I ain't gonna write it anyways.

[Jonas Nyrup @jnyrup]

@controlflow Beautiful visualization of the number of pointer indirections and heap allocations.