Crate enumx_derive

This project provides derive implementation for the enumx crate .

See enumx README for more.

Macros

• Enum
  Enum!( Type0, Type1, ..., TypeM ) denotes a predefined enum, the definition of which looks like:
• def_impls
  defines enums, with the syntax support of

Attribute Macros

• enumx
  tag an fn with #[enumx] to enable “type pattern matching” in match expressions that are tagged with #[ty_pat]/#[ty_pat(gen_variants)]/#[ty_pat(gen A,B,..)]`.
• sum
  collects all returned values in exit branches of the function, into an enum type, returning an impl trait
• sum_err
  To translate the expr? expressions in a different manner than the Rust’s default:

Derive Macros

• Exchange
  derives enumx::Exchange trait for custom defined enums
• FromVariant
  Derives the trait enumx::FromVariant for user defined enum types.
• Proto
  Since enums in Rust do not have prototypes, this macro derives them.