TedDriggs/darling

Health v2 · maintenance only

Adoption not part of the score

1265 stars · 95 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Darling is a Rust proc-macro helper library that lets macro authors declaratively parse attribute arguments into structs, inspired by serde's derive API. It provides traits like FromMeta and FromDeriveInput with built-in validation and helpful error messages.

Use cases

• parse proc-macro attributes into structs in rust
• build custom derive macros with configurable options
• get good error messages for macro attribute mistakes
• extract meta items from derive input
• implement FromMeta trait for attribute parsing

When to choose

• you're writing a Rust proc-macro or custom derive and need attribute parsing
• you want serde-like declarative parsing of macro options
• you need automatic validation and 'did you mean' suggestions for misspelled attributes

When to avoid

• you need a general-purpose argument parser for CLIs
• your macro doesn't take attributes or options
• you're not writing Rust proc-macros

Facets

library · maturity active

parser serialization developer-tools developer-tools parsers programming-languages rust cross-platform proc-macro derive-macros attribute-parsing syn serde-inspired

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