Crate typemap_meta

A simple compile-time derive macro to create type-to-value maps.

This approach in contrast to crates such as typemap or type-map that perform run-time lookup. The static typing brings compile-time safety and faster execution at the expense of using a derive macro and generics.

The crate is no_std compatible.

Example

#[derive(Typemap)]
struct Test(i32, f32);

let t = Test(1, 2.0);
assert_eq!(*get!(t, i32), 1);
assert_eq!(*get!(t, f32), 2.0);

Macros

get	Convenience macro to get a specific type $t from a tuple struct $s containing disjoint heterogeneous types

Traits

Get	Helper trait to get a specific type T from a tuple struct containing disjoint heterogeneous types

Derive Macros

Typemap

Add static type-to-value getters to a tuple struct containing disjoint heterogeneous types