https://github.com/lambda-fairy/if_chain

Macro for writing nested `if let` expressions
https://github.com/lambda-fairy/if_chain

macro rust

Last synced: 9 months ago
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Macro for writing nested `if let` expressions

• Host: GitHub
• URL: https://github.com/lambda-fairy/if_chain
• Owner: lambda-fairy
• License: apache-2.0
• Created: 2016-12-28T22:40:27.000Z (about 9 years ago)
• Default Branch: main
• Last Pushed: 2023-09-11T08:57:51.000Z (over 2 years ago)
• Last Synced: 2025-04-03T16:11:15.795Z (9 months ago)
• Topics: macro, rust
• Language: Rust
• Homepage: https://docs.rs/if_chain
• Size: 33.2 KB
• Stars: 165
• Watchers: 6
• Forks: 9
• Open Issues: 6
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • License: LICENSE-APACHE

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README

          
# if_chain

[![CI](https://github.com/lambda-fairy/if_chain/actions/workflows/ci.yml/badge.svg)](https://github.com/lambda-fairy/if_chain/actions/workflows/ci.yml) [![Cargo](https://img.shields.io/crates/v/if_chain.svg)](https://crates.io/crates/if_chain)

This crate provides a single macro called `if_chain!`.

`if_chain!` lets you write long chains of nested `if` and `if let` statements without the associated rightward drift. It also supports multiple patterns (e.g. `if let Foo(a) | Bar(a) = b`) in places where Rust would normally not allow them.

For more information on this crate, see the [documentation](https://docs.rs/if_chain) and associated [blog post](https://lambda.xyz/blog/if-chain).