anyhow
Flexible concrete Error type built on std::error::Error (by dtolnay)
lazy-static.rs
A small macro for defining lazy evaluated static variables in Rust. (by rust-lang-nursery)
| anyhow | lazy-static.rs | |
|---|---|---|
| 13 | 6 | |
| 5,059 | 1,862 | |
| - | 0.7% | |
| 8.5 | 5.0 | |
| 13 days ago | 5 months ago | |
| Rust | Rust | |
| Apache License 2.0 | Apache License 2.0 |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
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.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
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.
anyhow
Posts with mentions or reviews of anyhow.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-02-17.
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I love building a startup in Rust. I wouldn't pick it again.
Depending on your use case, thiserror and/or anyhow.
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Why Rust?
There is ? as well as the anyhow(https://github.com/dtolnay/anyhow) crate that deals with long nested result chains.
- Anyhow/src/ensure.rs: Rust macro with 675 lines
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Is this a good way of handling errors in Rust?
There are crates out there that help you reduce this boiler plate. thiserror is good for creating custom errors and color-eyre or anyhow are good for dynamic errors.
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Looking for general advice on toy project
Give anyhow a look.
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Oops, I Did It Again...I Made A Rust Web API And It Was Not That Difficult
I've brought anyhow::Result into scope, making error handling super easy to use. We don't need to specify all our Error types. It can automatically convert any errors that implement std::error::Error, which should be all of them. If an error propagates all the way up to main(), we'll get all the info it's captured printed to stdout.
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Idiomatic way to return/break if Err/None
Alternatively, if you've got a lot of error types and you're outside a library (so directly in a binary where you don't plan to reuse code elsewhere) you can use anyhow. This gives you an error type you can basically propagate any other error through. On top of that you can attach context information at every return. It's basically a more complicated Result>.
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Using workspace for modularization is kind of painful?
One approach is to define a separate error type for each crate and then use anyhow, eyre or Box to wrap the error, whever a function can return errors originating in several different crates.
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Can we please stop downvoting people who dislike Rust?
Have you tried anyhow and thiserror for making it as simple as .context("Message") or ? to type-convert and propagate errors up the call stack?
lazy-static.rs
Posts with mentions or reviews of lazy-static.rs.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-11-29.
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Rust crate to convert HSV to RGB in a const context?
Normally lazy_static allows to have "const" code that cant be const https://github.com/rust-lang-nursery/lazy-static.rs
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Easy terminal animations with Snailshell 🐌
It's an additional crate, but you could try using lazy-static or once-cell and wrap the global value in a RwLock.
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Form Validation in Rust (Actix-Web)
lazy_static : A macro for declaring lazily evaluated statics in Rust.
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Rust's lazy_static! usage benchmarks and code deep dive
Without understanding the implementation details of lazy_static I figured it would be easier to benchmark it than to dig through its source code.
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Oops, I Did It Again...I Made A Rust Web API And It Was Not That Difficult
The templates need to be compiled before use, but this only needs to happen once. We can use lazy_static to ensure this compilation happens the first time the templates are accessed, and then reuse the compiled result for all subsequent access:
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I'd like to review your README
Now, the readme examples are tested like everything else.
https://github.com/rust-lang-nursery/lazy-static.rs/blob/mas...
What are some alternatives?
When comparing anyhow and lazy-static.rs you can also consider the following projects:
eyre - A trait object based error handling type for easy idiomatic error handling and reporting in Rust applications
fenix - Rust toolchains and rust-analyzer nightly for Nix [maintainer=@figsoda]
color-eyre - Custom hooks for colorful human oriented error reports via panics and the eyre crate
select.rs - A Rust library to extract useful data from HTML documents, suitable for web scraping.
thiserror - derive(Error) for struct and enum error types
liscopridge - liskin's collection of protocol bridges
rust - Rust language bindings for TensorFlow
cargo-readme - Generate README.md from docstrings
structopt - Parse command line arguments by defining a struct.
docker-flask-example - A production ready example Flask app that's using Docker and Docker Compose.
cargo-edit - A utility for managing cargo dependencies from the command line.
once_cell - Rust library for single assignment cells and lazy statics without macros