Several of macros to put each function under a named macro to index every function in a class.
It encourages writing better code, having index of components stripped of details of implementation is very important for comprehension of the code and ability to see the big picture.
```rust use ::impls_index::*;
impls1! { fn f1() -> i32 { println!( "f1() : 13" ); 13 } };
index! { f1, }
assert_eq!( f1(), 13 ); /* print : f1() : 13 */ ```
sh
cargo add impls_index_meta
shell test
git clone https://github.com/Wandalen/wTools
cd wTools
cd sample/rust/impls_index_trivial_sample
cargo run