Define Macro Implementation

This directory contains the procedural macro implementation for the alias_macros crate.

About Alias Macros

alias_macros is a Rust procedural macro crate that allows you to create custom aliases for types, keywords, and complex syntax patterns. Create TypeScript-like interfaces, alias primitive types with descriptive names, or build domain-specific syntax - all with zero runtime cost!

📚 For complete usage examples, features, and documentation, see the main README.

Structure

• src/lib.rs - Contains the define! procedural macro implementation
• Cargo.toml - Crate configuration with proc-macro dependencies

Implementation Details

The define! macro:

1. Parses input in the format alias = replacement
2. Creates a macro_rules! macro with the alias name
3. Supports two patterns:
   • () - Expands to just the replacement
   • ($($tokens:tt)*) - Expands to replacement followed by the tokens

Dependencies

• syn - For parsing Rust syntax
• quote - For generating Rust code
• proc_macro2 - For token stream manipulation

Building

cargo build

This crate is used as a dependency by the main project and provides the define! macro functionality.