j1939-macros

Procedural macros for the j1939-rs library.

Note on std Usage

This crate uses the standard library (std) and does not have #![no_std]. This is intentional and correct:

• Proc macros run at compile time on the developer's machine, not on the embedded target
• The Rust compiler requires proc macro crates to use std
• Dynamic allocations (Vec, String, HashMap) are used during code generation
• This code never runs on the embedded system

The generated code from these macros is fully no_std compatible and runs on embedded targets without heap allocation. See the j1939-rs crate documentation for details on embedded system support.