fslang-suggestions
.NET Runtime
fslang-suggestions | .NET Runtime | |
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43 | 618 | |
340 | 14,308 | |
0.9% | 2.8% | |
2.9 | 10.0 | |
8 days ago | 3 days ago | |
C# | ||
- | MIT License |
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fslang-suggestions
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Reusing static constraints with multiple generics
Trying to extend this https://github.com/fsharp/fslang-suggestions/issues/1089 to have two generics:
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VN Compiler. How to use Blazor components with Bolero. Introducing Blazor.Diagrams. (Pt. 1) (Restart)
Basically, what I've made in Spiral. There is even a F# issue to improve the syntax.
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Can I call method on the output of the pipe?
Not currently supported but it's an open language suggestion that's likely to end up in F#. https://github.com/fsharp/fslang-suggestions/issues/506
- Mapperly - A .NET source generator for object to object mappings
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Microfeatures I'd like to see in more languages
Re: the argument accessor shorthand, there seems to be a proposal for exactly that (using _ instead of &): https://github.com/fsharp/fslang-suggestions/issues/506#issu...
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Need help with Azure.Storage.Blobs to do simple enumerate blob items
I found this post (https://github.com/fsharp/fslang-suggestions/issues/975) which is about the same thing, but I'm confused as to what the final resolution was. There was mention of a taskSeq, but I can't find much info on that.
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OCaml programmer with some noob F# ecosystem questions
An issue in FSharp suggestions
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Announcing .NET 7 Preview 7
F# doesn’t currently seem to support source generators.
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What are the features you're looking forward to in the next version of Fsharp?
"Blessed" literals: only FSharp.List and System.Array have a built-in collection syntax in the language ([ ] and [| |]). Only FSharp.List has a special pattern matching constructor (::). The language itself shouldn't favor a particular type over another: it should be possible, at the library level, to write the same code but using different collection types (related discussion here).
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F# (in)compatibility
I mostly write F# so I can only speak for F#, but if you want you can create a module which extends Seq to add the OCaml names. I suspect the same is possible in OCaml. The authors are not trying to impede compatibility, but compatibility is not a goal. If you value compatibility, or adhering to ML norms, and you use F#, I recommend you (kindly) advocate for it in relevant issues on the F# language discussion repo. https://github.com/fsharp/fslang-suggestions/issues
.NET Runtime
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The search for easier safe systems programming
.NET has explicit tailcalls - they are heavily used by and were made for F#.
https://learn.microsoft.com/en-us/dotnet/api/system.reflecti...
https://github.com/dotnet/runtime/blob/main/docs/design/feat...
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Arena-Based Parsers
The description indicates it is not production ready, and is archived at the same time.
If you pull all stops in each respective language, C# will always end up winning at parsing text as it offers C structs, pointers, zero-cost interop, Rust-style struct generics, cross-platform SIMD API and simply has better compiler. You can win back some performance in Go by writing hot parts in Go's ASM dialect at much greater effort for a specific platform.
For example, Go has to resort to this https://github.com/golang/go/blob/4ed358b57efdad9ed710be7f4f... in order to efficiently scan memory, while in C# you write the following once and it compiles to all supported ISAs with their respective SIMD instructions for a given vector width: https://github.com/dotnet/runtime/blob/56e67a7aacb8a644cc6b8... (there is a lot of code because C# covers much wider range of scenarios and does not accept sacrificing performance in odd lengths and edge cases, which Go does).
Another example is computing CRC32: you have to write ASM for Go https://github.com/golang/go/blob/4ed358b57efdad9ed710be7f4f..., in C# you simply write standard vectorized routine once https://github.com/dotnet/runtime/blob/56e67a7aacb8a644cc6b8... (its codegen is competitive with hand-intrinsified C++ code).
There is a lot more of this. Performance and low-level primitives to achieve it have been an area of focus of .NET for a long time, so it is disheartening to see one tenth of effort in Go to receive so much spotlight.
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Airline keeps mistaking 101-year-old woman for baby
It's an interesting "time is a circle" problem given that a century only has 100 years and then we loop around again. 2-digit years is convenient for people in many situations but they are very lossy, and horrible for machines.
It reminds me of this breaking change to .Net from last year.[1][2] Maybe AA just needs to update .Net which would pad them out until the 2050's when someone born in the 1950s would be having...exactly the same problem in the article. (It is configurable now so you could just keep pushing it each decade, until it wraps again).
Or they could use 4-digit years.
[1] https://github.com/dotnet/runtime/issues/75148
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The software industry rapidly convergng on 3 languages: Go, Rust, and JavaScript
These can also be passed as arguments to `dotnet publish` if necessary.
Reference:
- https://learn.microsoft.com/en-us/dotnet/core/deploying/nati...
- https://github.com/dotnet/runtime/blob/main/src/coreclr/nati...
- https://github.com/dotnet/runtime/blob/5b4e770daa190ce69f402... (full list of recognized keys for IlcInstructionSet)
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The Performance Impact of C++'s `final` Keyword
Yes, that is true. I'm not sure about JVM implementation details but the reason the comment says "virtual and interface" calls is to outline the difference. Virtual calls in .NET are sufficiently close[0] to virtual calls in C++. Interface calls, however, are coded differently[1].
Also you are correct - virtual calls are not terribly expensive, but they encroach on ever limited* CPU resources like indirect jump and load predictors and, as noted in parent comments, block inlining, which is highly undesirable for small and frequently called methods, particularly when they are in a loop.
* through great effort of our industry to take back whatever performance wins each generation brings with even more abstractions that fail to improve our productivity
[0] https://github.com/dotnet/coreclr/blob/4895a06c/src/vm/amd64...
[1] https://github.com/dotnet/runtime/blob/main/docs/design/core... (mind you, the text was initially written 18 ago, wow)
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Java 23: The New Features Are Officially Announced
If you care about portable SIMD and performance, you may want to save yourself trouble and skip to C# instead, it also has an extensive guide to using it: https://github.com/dotnet/runtime/blob/69110bfdcf5590db1d32c...
CoreLib and many new libraries are using it heavily to match performance of manually intensified C++ code.
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Locally test and validate your Renovate configuration files
DEBUG: packageFiles with updates (repository=local) "config": { "nuget": [ { "deps": [ { "datasource": "nuget", "depType": "nuget", "depName": "Microsoft.Extensions.Hosting", "currentValue": "7.0.0", "updates": [ { "bucket": "non-major", "newVersion": "7.0.1", "newValue": "7.0.1", "releaseTimestamp": "2023-02-14T13:21:52.713Z", "newMajor": 7, "newMinor": 0, "updateType": "patch", "branchName": "renovate/dotnet-monorepo" }, { "bucket": "major", "newVersion": "8.0.0", "newValue": "8.0.0", "releaseTimestamp": "2023-11-14T13:23:17.653Z", "newMajor": 8, "newMinor": 0, "updateType": "major", "branchName": "renovate/major-dotnet-monorepo" } ], "packageName": "Microsoft.Extensions.Hosting", "versioning": "nuget", "warnings": [], "sourceUrl": "https://github.com/dotnet/runtime", "registryUrl": "https://api.nuget.org/v3/index.json", "homepage": "https://dot.net/", "currentVersion": "7.0.0", "isSingleVersion": true, "fixedVersion": "7.0.0" } ], "packageFile": "RenovateDemo.csproj" } ] }
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Chrome Feature: ZSTD Content-Encoding
https://github.com/dotnet/runtime/issues/59591
Support zstd Content-Encoding:
- Writing x86 SIMD using x86inc.asm (2017)
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Why choose async/await over threads?
We might not be that far away already. There is this issue[1] on Github, where Microsoft and the community discuss some significant changes.
There is still a lot of questions unanswered, but initial tests look promising.
Ref: https://github.com/dotnet/runtime/issues/94620
What are some alternatives?
ProjectReunion - The Windows App SDK empowers all Windows desktop apps with modern Windows UI, APIs, and platform features, including back-compat support, shipped via NuGet.
Ryujinx - Experimental Nintendo Switch Emulator written in C#
HVM - A massively parallel, optimal functional runtime in Rust
ASP.NET Core - ASP.NET Core is a cross-platform .NET framework for building modern cloud-based web applications on Windows, Mac, or Linux.
nand2tetris - Original course HDL solutions, F# implementations for the software stack, and VHDL implementations for the hardware stack for the nand2tetris course and The Elements of Computing Systems book.
actix-web - Actix Web is a powerful, pragmatic, and extremely fast web framework for Rust.
fslang-design - RFCs and docs related to the F# language design process, see https://github.com/fsharp/fslang-suggestions to submit ideas
WASI - WebAssembly System Interface
FSharpPlus - Extensions for F#
CoreCLR - CoreCLR is the runtime for .NET Core. It includes the garbage collector, JIT compiler, primitive data types and low-level classes.
ZIO - ZIO — A type-safe, composable library for async and concurrent programming in Scala
vgpu_unlock - Unlock vGPU functionality for consumer grade GPUs.