JelteF/derive_more

Health v2 · maintenance only

Adoption not part of the score

2130 stars · 152 forks observed · 2026-08-28

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

A Rust crate providing many additional #[derive(...)] macros for common standard traits like Add, From, Into, Display, and Not. It eliminates boilerplate when wrapping basic types in newtypes or custom structs and enums.

Use cases

• derive standard traits on newtype wrappers without manual implementations
• reduce boilerplate for operator traits like Add, Mul, Not on custom structs
• auto-generate Display formatting for structs and enums
• convert between tuples and custom structs via From/Into derives
• implement FromStr, TryFrom, and iterator traits declaratively

When to choose

• you use the newtype pattern and lose trait implementations on wrapped types
• you want to cut down repetitive manual trait impls in Rust
• you need Display or conversion traits generated with custom formatting

When to avoid

• you need highly customized trait behavior beyond what derives can express
• your project avoids proc-macro dependencies or has strict compile-time budgets
• you only need one or two trivial impls that are faster to write by hand

Facets

library · maturity stable

boilerplate developer-tools developer-tools programming-languages rust derive-macros traits newtype-pattern proc-macros rust-crate macros

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