rust
Rust — Trait Objects, Sized, and Why My DAG Needed `Box<dyn Fn>`
Why heterogeneous closures require type erasure, how trait objects become unsized, and why 'static is necessary when storing tasks.
2/14/2026 • 4 min
Why heterogeneous closures require type erasure, how trait objects become unsized, and why 'static is necessary when storing tasks.