dtolnay/anyhow
Anyhow
Anyhow is a dynamic error handling library for Rust applications that provides a flexible error container using type erasure. It serves as a tool for simplifying error signatures by wrapping diverse failure types into a single object, allowing for the propagation of any error that implements the standard error trait without requiring a custom enumeration for every function.
The project functions as an error context provider by attaching high-level diagnostic information and recording execution stack traces at the point of failure. It enables the recovery of concrete error implementations from generic containers through downcasting and supports the generation of ad hoc errors using string interpolation.
Features
- Error Type Unifications - Provides a dynamic error container that wraps diverse failure types into a single trait object to simplify function signatures.
- Dynamic Error Containers - Provides a trait-object based wrapper for managing diverse error types without custom enums.
- Error Handling - Implements a dynamic error type for capturing and propagating any Rust error implementing the standard trait.
- Type-Erasure Error Containers - Wraps diverse error types into a single dynamic type using trait-object based erasure.
