Crate step_p21_derive 

Procedural macros for second step code generation

┌────────────────┐
│ EXPRESS schema │
└──┬─────────────┘
   │ expressc
┌──▼─────────────────┐
│ Abstract Rust code │
└──┬─────────────────┘
   │ step_p21-derive
┌──▼───────────────┐
│ Actual Rust code │
└──────────────────┘

Design

• step_p11::codegen::rust generates Rust code with proc-macros defined in this crate.
• This crate does not depends on step_p11 explicitly.

Macros

as_holder

Get Holder struct identifier from ENTITY struct identifier

Derive Macros

Deserialize

Generate impl Deserialize for entity structs

Holder

Generates Holder struct and related implementation for each ENTITY struct

TableInit

Derive TableInit for tables