Macro macrox 

macro_rules! macrox {
    ($(
		$(#[$attr:meta])*
		macro $macro_name:ident
		$(($($arg: ident: $ty: ty), *)
		$body: block);
		+)
	*) => { ... };
    ($(
		$(#[$attr:meta])*
		macro $macro_name:ident
		$(($(@$identifier: ident $arg: ident: $ty: ty), *)
		$body: block);
		+)
	*) => { ... };
}

Macrox

The main crate’s macro, it takes a custom-syntax macro declaration. (macro name(arg1: type1, arg2: type2 /* ... */) { /* Body */})

Example

use typed_macros::macrox;

macrox! {
	#[macro_export]
	macro macro_name(arg: String) {
		// Do something with arg.
	}
}

fn main() {
	// You can use the macro wherever you want.
	macro_name!(String::from("Hi"));
}

You can declare various macros inside macrox!, and they can have attributes.

Single-branched and Multi-branched macros

With this macro you can write both single-branched and multi-branched macros, and both are really easy!

Single-branched macros

These are macros like the one in the example, with just one possible branch.

Multi-branched macros

These are a little bit more complicated, they use identifiers both distinguishing what branch you’re trying to use.

An identifier is anything that starts with ‘@’, e. g. @a Also, between the two branches there must be a ‘;’

Example

use typed_macros::macrox;

macrox! {
	#[macro_export]
	macro my_macro(@a x: String) {
		// Do something with x being a String
	};

	(@b x: u32) {
		// Do something with x being a u32
	}
}

fn main() {
	my_macro!(@a String::from("hi!"));
	my_macro!(@b 5_u32);
}