Inception: Automatic Rust Trait Implementation by Induction

In plain words

Inception is a Rust library that automatically implements traits across data structures using type-level programming and structural induction. Rather than requiring separate derive macros for each trait, developers can use a single derive to enable multiple behaviors like Clone, Eq, and Hash. The implementation uses compile-time monomorphization instead of runtime reflection, theoretically matching the overhead of traditional macro expansion. The library is in early stages with working examples for common structures, though the author notes the code is not yet idiomatic Rust.

written from the facts on this page · September 2026

From the sources

Trait Implementation by Induction. Contribute to nicksenger/Inception development by creating an account on GitHub.

In the maker’s words, at launch

Hi HN, I thought this would be a good place to share a little puzzle I've been working on. Inception is a Rust library that helps you share behaviors in Rust using structural induction. Practically, this means that instead of having a derive macro for each behavior, a single derive can be used to enable any number of…

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