#macro #collection #comprehension

more_collection_macros

Adds new macros to rust for creating collections

4 releases

0.2.2 Feb 15, 2022
0.2.1 Jan 31, 2022
0.2.0 Jan 31, 2022
0.1.0 Jan 30, 2022

#2124 in Development tools

Download history 12/week @ 2024-02-19 20/week @ 2024-02-26 14/week @ 2024-03-04 14/week @ 2024-03-11 9/week @ 2024-03-18

60 downloads per month
Used in 3 crates (2 directly)

MIT/Apache

10KB
167 lines

More Collection Macros

By Joshua Radin

Repostiory

This library provides a set of useful macros for creating std collections, similar to the default vec! macro

Comprehension

These macros enable list/map comprehension similar to what's present in python. For example, the following python code

list = [x*x for x in range(0,10)]
dict = {x : x*x for x in range(0,10)}

is equivalent to the following rust code

let list = list![x*x; x in 0..10];
let dict = map!{x => x*x; x in 0..10};

Namespace-like

With maps, you can also use identifiers as keys, which are then converted to &'static str keys.

map!{
    field1: 0,
    field2: 1
};

You can't repeat fields with this notation. The following will give a runtime error.

map!{
    field1: 0,
    field1: 1
};

lib.rs:

More Collection Macros

This library provides a set of useful macros for creating std collections, similar to the default vec! macro

Comprehension

These macros enable list/map comprehension similar to what's present in python. For example, the following python code

list = [x*x for x in range(0,10)]
dict = {x : x*x for x in range(0,10)}

is equivalent to the following rust code


let list = list![x*x; x in 0..10];
let dict = map!{x => x*x; x in 0..10};

Namespace-like

With maps, you can also use identifiers as keys, which are then converted to &'static str keys.

map!{
    field1: 0,
    field2: 1
};

You can't repeat fields with those notation. The following will give a runtime error.

map!{
    field1: 0,
    field1: 1
};

No runtime deps