ziglings
design
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ziglings | design | |
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36 | 33 | |
4,098 | 11,344 | |
- | 0.2% | |
8.1 | 3.9 | |
2 months ago | 6 days ago | |
Zig | ||
MIT License | Apache License 2.0 |
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ziglings
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Roadmap to master zig
Master syntax - language possibilities, so that you can read code. Ziglings (or github) does great job teaching it!
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Problems of C, and how Zig addresses them
I am interested to learn, how Traits in Rust and Interfaces in Go behave differently from this concept.
[1] https://github.com/ratfactor/ziglings/blob/main/exercises/09...
- Learning how to use the Zig build system.
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What's the reasoning behind the iguana mascot, and why is Zig specifically named so?
Is Zero the space lizard (dinosaur?) with the hammer in the picture in Ziglings' readme? (I like this guy)
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List of wanted examples?
Yesterday someone introduced me to ziglings, do you mean that? https://github.com/ratfactor/ziglings/tree/main/exercises
- Looking for feedback on new Ziglings Exercise 101 (multi-object 'for' loops and data-oriented design)
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Curious noob peeks memory and wants to understand it 😅
Hi! I am learning zig through the Ziglings repo. I was messing around exercise 54 where it shows how you can create a pointer to many items instead of a slice:
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What “sucks” about Zig?
Also, https://github.com/ratfactor/ziglings if you missed it.
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Ask reddit: What learning resources have taught you the most about zig?
Along with ziglearn, I also found ziglings useful.
- Bun v0.5
design
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Surprisingly Powerful – Serverless WASM with Rust Article 1
WebAssembly (abbreviated Wasm) is a binary instruction format for a stack-based virtual machine. Wasm is designed as a portable compilation target for programming languages, enabling deployment on the web for client and server applications. - https://webassembly.org
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Reaching and surpassing the limits of JavaScript BigData with WebAssembly
With WebAssembly we can compile our C++ codebase into a wasm module for the browser. So when you look at a SciChart.js chart you're actually seeing our C++ graphics engine wrapped for JavaScript.
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WASM Instructions
I should add, however, that the unmentioned elephant in the room is V8 JIT (TurboFan), which simply doesn't handle irreducible control flow. While there are some valid theoretical arguments around the current arrangement in Wasm, looking at the history of the associated discussions makes it pretty obvious that having V8 support Wasm and generate fast code similar to what it can do for asm.js was an overriding concern in many cases. And Google straight up said that if Wasm has ICF, they will not bother supporting such cases, so it will be done by a much slower fallback:
https://github.com/WebAssembly/design/issues/796#issuecommen...
AFAIK no other Wasm implementation has the same constraint - the rest generally tend to desugar everything to jumps and then proceed from there. So this is, at least to some extent, yet another case of a large company effectively forcing an open standard to be more convenient for them specifically.
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Supercharge Web AI Model Testing: WebGPU, WebGL, and Headless Chrome
https://github.com/WebAssembly/design/issues/1397
> Currently allocating more than ~300MB of memory is not reliable on Chrome on Android without resorting to Chrome-specific workarounds, nor in Safari on iOS.
That's about allocating CPU memory but the GPU memory situation is similar.
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Build your own WebAssembly Compiler
As far as I can tell (5 minutes of internet research) this was to allow easier compilation to JavaScript as a fallback in the days when WASM wasn't widely supported.
"Please add goto" issue has been open since 2016:
https://github.com/WebAssembly/design/issues/796
Most interesting comment:
> The upcoming Go 1.11 release will have experimental support for WebAssembly. This will include full support for all of Go's features, including goroutines, channels, etc. However, the performance of the generated WebAssembly is currently not that good.
> This is mainly because of the missing goto instruction. Without the goto instruction we had to resort to using a toplevel loop and jump table in every function. Using the relooper algorithm is not an option for us, because when switching between goroutines we need to be able to resume execution at different points of a function. The relooper can not help with this, only a goto instruction can.
> It is awesome that WebAssembly got to the point where it can support a language like Go. But to be truly the assembly of the web, WebAssembly should be equally powerful as other assembly languages. Go has an advanced compiler which is able to emit very efficient assembly for a number of other platforms. This is why I would like to argue that it is mainly a limitation of WebAssembly and not of the Go compiler that it is not possible to also use this compiler to emit efficient assembly for the web.
^ https://github.com/WebAssembly/design/issues/796#issuecommen...
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Flawless – Durable execution engine for Rust
When I implemented a WASM compiler, the only source of float-based non-determinism I found was in the exact byte representation of NaN. Floating point math is deterministic. See https://webassembly.org/docs/faq/#why-is-there-no-fast-math-... and https://github.com/WebAssembly/design/blob/main/Nondetermini....
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Requiem for a Stringref
> To work with GC, you need some way to track if the GC'd object is accessible in WASM itself.
I've never heard of a GC with that kind of API. Usually any native code that holds a GC reference would either mark that reference as a root explicitly (eg. https://github.com/WebAssembly/design/issues/1459) or ensure that it can be traced from a parent object. Either way, this should prevent collection of the object. I agree that explicitly checking whether a GC'd object has been freed would not make any sense.
> The reason why you probably need a custom string type is so you can actually embed string literals without relying on interop with the environment.
WASM already has ways of embedding flat string data. This can be materialized into GC/heap objects at module startup. This must happen in some form anyway, as all GC-able objects must be registered with the GC upon creation, for them to be discoverable as candidates for collection.
Overall I still don't understand the issue. There is so much prior art for these patterns in native extensions for Python, PHP, Ruby, etc.
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The Tug-of-War over Server-Side WebAssembly
Giving you a buffer that grows is the allocation approach I am talking about. This is not how your OS works. Your OS itself works with an allocator that does a pretty good job making sure that your memory ends up not fragmented. Because WASM is in between, the OS is not in control of the memory, and instead the browser is. The browser implementation of "bring your own allocator" is cute but realistically just a waste of time for everybody who wants to deploy a wasm app because whatever allocator you bring is crippled by the overarching allocator of the browser messing everything up.
It seems like the vendors are recognizing this though, with firefox now having a discard function aparently!
https://github.com/WebAssembly/design/issues/1397
- How do Rust WebAssembly apps free unused memory?
- Hello World In Web Assembly
What are some alternatives?
awesome-zig
content - The content behind MDN Web Docs
Rustlings - :crab: Small exercises to get you used to reading and writing Rust code!
wave - Realtime Web Apps and Dashboards for Python and R
zig - General-purpose programming language and toolchain for maintaining robust, optimal, and reusable software.
interface-types
nrf-hal - A Rust HAL for the nRF family of devices
Chevrotain - Parser Building Toolkit for JavaScript
rust-koans - Koans for the Rust programming language
WASI - WebAssembly System Interface
xtensa-zig - Zig built against xtensa fork of LLVM for targetting ESP32
iswasmfast - Performance comparison of WebAssembly, C++ Addon, and native implementations of various algorithms in Node.js.