Crate amplify_derive

Amplifying Rust language capabilities: multiple generic trait implementations, type wrappers, derive macros.

Derive Macros

• AsAny
  Trait amplify::AsAny allows simple conversion of any type into a generic “thick” pointer &dyn Any (see ::core::any::Any), that can be later converted back to the original type with a graceful failing for all other conversions. AsAny derive macro allows to implement this trait for arbitrary time without much hussle:
• Display
  Usage
• Error
  Error derive macro works to the full extend only when other derive macros are used. With #[derive(Display)] and [display(doc_comments)] it uses doc comments for generating error descriptions; with #[derive(From)] it may automatically implement transofrations from other error types.
• From
  Implements From trait for the whole entity and/or its separate fields. Works well with #[derive(Error)] and, in many cases may require Default implementation (for details, pls see Examples below)
• Getters
  Derives getter methods for structures. The return type and naming of the methods depends on the provided attribute arguments.
• Wrapper
  Creates rust new type wrapping existing type. Can be used in structures containing multiple named or unnamed fields; in this case the field you’d like to wrap should be marked with #[wrap] attribute; otherwise the first field is assumed to be the wrapped one.
• WrapperMut
  Derives WrapperMut and allows deriving other traits accessing the wrapped type which require mutable access to the inner type. Requires that the type already implements amplify::Wrapper.