smartstring
patterns
smartstring | patterns | |
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7 | 63 | |
482 | 7,722 | |
- | 1.4% | |
0.0 | 7.5 | |
8 months ago | 12 days ago | |
Rust | Handlebars | |
Mozilla Public License 2.0 | Mozilla Public License 2.0 |
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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
patterns
- Best practices for designing traits in public crates?
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Ask HN: Learning new coding patterns – how to start?
For OOP design patterns in Rust, see: https://rust-unofficial.github.io/patterns/
For a book on FP, see: https://www.manning.com/books/grokking-simplicity
- Haskell mini-patterns handbook (2020)
- Is there any site with Dos and Don'ts in Rust?
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Functional Options Pattern in Go and Rust
Just wanting to let this here for some further input: - https://rust-lang.github.io/api-guidelines/ - https://rust-unofficial.github.io/patterns/ - https://deterministic.space/elegant-apis-in-rust.html
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Rust exercices for tech interview
Rust Design Patterns
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I want some help learning design patterns
I know about Rust Design Pattern what are your reviews for the same?
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I've been writing C# for nearly a decade, but I want to learn how to build programs with Rust. What do I need to change about how I structure my code?
Once you've finished with The Book and possibly Programming Rust, 2nd Edition if you've got the cash for a paid book, read Learning Rust With Entirely Too Many Linked Lists (it helps to solidify what ownership and borrowing mean for data structures) and Rust Design Patterns.
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Is there a coding style and set of best-practices that avoid (not bypass) "fighting the borrow checker"?
Well, there's https://rust-unofficial.github.io/patterns/ for a start.
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Comprehensive Rust 🦀 is now available in Korean!
Love the translation pipeline, currently looking into adopting that as well for the Rust patterns book!
What are some alternatives?
smol_str
nomicon - The Dark Arts of Advanced and Unsafe Rust Programming
compact_str - A memory efficient string type that can store up to 24* bytes on the stack
rust-typed-builder - Compile-time type-checked builder derive
min-sized-rust - 🦀 How to minimize Rust binary size 📦
too-many-lists - Learn Rust by writing Entirely Too Many linked lists
libskry_r - Lucky imaging library
book - The Rust Programming Language
bitter - Extract bits from a byte slice
idiomatic-rust - 🦀 A peer-reviewed collection of articles/talks/repos which teach concise, idiomatic Rust.
redgrep - ♥ Janusz Brzozowski
vulkano - Safe and rich Rust wrapper around the Vulkan API