smartstring
mun
smartstring | mun | |
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7 | 26 | |
482 | 1,757 | |
- | 0.9% | |
0.0 | 7.3 | |
8 months ago | 4 days ago | |
Rust | Rust | |
Mozilla Public License 2.0 | GNU General Public License v3.0 or later |
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For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
smartstring
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Does using "String" instead of "&str" a lot results in unoptimised code?
Your use case sounds like it will involve a lot of small strings that use a subset of UTF-8. If you’re concerned about performance, you could look into something like smartstring. Sixbit also looks interesting, but it looks like it won’t give you any more characters and it’d probably require additional computation to do the conversion (and they’d have to be converted back out).
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Rust Is Hard, Or: The Misery of Mainstream Programming
> If you have a long-running async function, then pass parameters by value! If you have a polymorphic async function, then return your result in a Box.
I've taken to making heavy use of the smallvec and smartstring crates for this. Most lists and strings are small in practice. Using smallvec / smartstring lets you keep most clone() calls allocation-free. This in turn lets you use owned objects, which are easier to reason about - for you and the borrow checker. And you keep a lot of the performance of just passing around references.
I tried to use async rust a couple of years ago, and fell on my face in the process. Most of my rust at the moment is designed to compile to wasm - and then I'm leaning on nodejs for networking and IO. Writing async networked code is oh so much easier to reason about in javascript. When GAT, TAIT and some other language features to fix async land I'll muster up the courage to make another attempt. But rust's progress at fixing these problems feels painfully slow.
https://crates.io/crates/smallvec / https://crates.io/crates/smartstring
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GitHub - epage/string-benchmarks-rs: Comparison of Rust string types
Just to point out, smartstring no longer assumes String memory layout. From the changelog:
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Why is str not just [char]?
There's some really good crates that implement SSO floating around - eg, SmartString. But I agree - its a pity they're needed. Swift built this into the core string type in the language. I think that was the right call.
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Announcing `compact_str`! A super memory efficient immutable string that is transparently stored on the stack, when possible
Comparatively: * SmolStr can inline up to 22 bytes but does not adjust down for 32-bit architectures, meaning it's potentially wasting memory on 32-bit archs. Similarly though it's immutable and Clone is O(1) * SmartString can inline up to 23 bytes, but it's mutable and Clone is O(n). Also this crate makes assumptions about the memory layout of a String, which in theory should be fine, but is a slight caveat.
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Version 0.19.15 released.
SmartString is used to store identifiers (which tends to be short, fewer than 23 characters, and ASCII-based) because they can usually be stored inline. Map keys now also use SmartString.
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Speed of Rust vs. C
I’ve been using smartstrings, which is both excellent and maintained. https://github.com/bodil/smartstring
mun
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Hotswapping on native languages?
Mun is a statically typed language that compiles to machine code with LLVM, designed to be hot-reloadable: https://mun-lang.org/.
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Best language to use as a scripting lang for my rust app
Perhaps https://mun-lang.org? Might be a bit raw for your needs tho.
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Mun v0.4.0 released
But that’s not all! In total, this release contains 111 pull requests made by 5 of our community contributors and our two Core Team members & Dependabot. Thanks for having our back! For a full list have a look at the changelog, but the main improvements are:
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Mun v0.4.0: a statically-typed scripting language like Rust, written in Rust
Whenever I read about Mun, I'm always really, really intrigued… Until I remember that it currently has no string type and support for one is not currently planned. That's a bit of a shame, IMHO, because otherwise, this looks great!
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Wren is a small, fast, class-based concurrent scripting language
There's mun [1] which is statically typed and AOT compiled.
1: https://github.com/mun-lang/mun
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Lessons from Writing a Compiler
From the reverse-dependencies of the salsa crate, the (archived) Lark compiler used it and the Mun compiler uses it.
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(async) Rust doesn't have to be hard
I notice that there are projects like mun trying to achieve a similar goal, but I'm kind of curious why they are not getting much attention from the community.
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Rust Is Hard, Or: The Misery of Mainstream Programming
Have you heard of https://mun-lang.org/ ?
It's an embeddable scripting language with the goal of being a Rust-like language that supports hot reloading of functions AND data. To achieve the latter, it uses GC'ed memory such that memory can easily be mapped when the memory's type changes.
It's still in early development but maybe one day will serve your needs :)
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After working on our Godot + Rust game fulltime for one year it is now up on Steam
In terms of pure Rust engines/frameworks it seems the overall "problem" is lack of scripting, at least from my perspective. Mun seemed extremely interesting, but since even the project itself says "don't use it" I guess it's not a real option, and considering the amount of time we spent on the GDScript/Rust integration I'm a little worried that rolling something more custom would be even less efficient.
- Python interpreter written in rust reaches 10000 commits
What are some alternatives?
smol_str
Rhai - Rhai - An embedded scripting language for Rust.
compact_str - A memory efficient string type that can store up to 24* bytes on the stack
rune - An embeddable dynamic programming language for Rust.
min-sized-rust - 🦀 How to minimize Rust binary size 📦
janet - A dynamic language and bytecode vm
libskry_r - Lucky imaging library
lobster - The Lobster Programming Language
bitter - Extract bits from a byte slice
RustPython - A Python Interpreter written in Rust
redgrep - ♥ Janusz Brzozowski
tl - The compiler for Teal, a typed dialect of Lua