darling

library0.23.0rscratesunverified

A proc-macro library for reading attributes into structs when implementing custom derives.

# Cargo.toml
[dependencies]
darling = "0.23.0"

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INSTALL

IMPORT

SIG · DARLING

darling

otherrustv0.23.0

harness data pending

Install & Compatibility

Where this runs

No compatibility data collected yet for this library.

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

FromDeriveInput

✓ use darling::FromDeriveInput;

Parses custom derive attributes into a struct.

use darling::FromDeriveInput; use syn::DeriveInput; #[derive(FromDeriveInput)] #[darling(attributes(my_attr))] struct MyOptions { name: String, count: Option<usize>, } fn main() { let input: DeriveInput = syn::parse_str("#[derive(MyTrait)] #[my_attr(name = \"test\")] struct Foo;").unwrap(); let opts = MyOptions::from_derive_input(&input).unwrap(); println!("Name: {}", opts.name); }

Debug

Known issues

gotchaRequires understanding of proc-macro and syn crate.

fix

Familiarize with syn and quote crates for derive macros.

affects: >=0.10.0

Upgrade

Version history

0.23.0latest on crates.io

Audit

Dependencies

No dependency data recorded yet.

Agent activity

12 hits · last 30 days

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Resources

githubhttps://github.com/TedDriggs/darling ↗

homepagehttps://github.com/TedDriggs/darling ↗

docshttps://docs.rs/darling/ ↗