lambda-fairy/if_chain

Macro for writing nested `if let` expressions

Source code at GitHub https://docs.rs/if_chain

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  "description": "Macro for writing nested `if let` expressions",
  "fullName": "lambda-fairy/if_chain",
  "homepage": "https://docs.rs/if_chain",
  "language": "Rust",
  "name": "if_chain",
  "pushedAt": "2025-08-29T15:17:09Z",
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  "topics": [
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  "updatedAt": "2025-11-18T12:22:55Z",
  "url": "https://github.com/lambda-fairy/if_chain"
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if_chain

If you’re using Rust 1.88 or newer, check out if let chains instead. This crate is still available for earlier versions of Rust.

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 and associated blog post.