E-Ink News Daily

Back to list

How to stop fighting with coherence and start writing context-generic trait impls

The RustLab 2025 presentation introduces Context-Generic Programming (CGP), a new approach to overcome Rust's coherence and orphan rule limitations. It demonstrates how to write more generic trait implementations using explicit provider/consumer patterns while maintaining type safety. This represents a significant advancement in Rust's trait system design patterns.

Background

Rust's trait system has coherence and orphan rules that prevent certain generic implementations, which has been a long-standing limitation for writing highly polymorphic code. These rules exist to ensure type safety and prevent conflicting implementations.

Source
Lobsters
Published
Mar 7, 2026 at 09:32 PM
Score
7.0 / 10