1 unstable release
0.1.0 | Oct 28, 2019 |
---|
#12 in #literal
10KB
110 lines
derive_lit
Are you developing a data structure?
struct GroceryList {
num_items: usize,
item_ids: Vec<usize>
}
And your data structure lets you add data to it?
impl GroceryList {
fn new() -> Self {
Self {
num_items: 0,
item_ids: vec![]
}
}
fn push(&mut self, item_id: usize) {
self.item_ids.push(item_id);
}
}
Wouldn't it be cool if you could do this?
fn main() {
let groceries = grocery_list![
0,
9,
8,
4
];
// do something intersting with your GroceryList...
}
What if you could just...
use derive_lit::VecLit;
#[derive(VecLit)]
struct GroceryList {
num_items: usize,
item_ids: Vec<usize>
}
You can! Use derive_lit::*
.
Just a derive_lit = "0.1.0"
away!
lib.rs
:
This is a crate for automatically generating macros that expand to literal values of your data structure. Here's an example.
use derive_lit::VecLit;
#[derive(VecLit)]
struct GroceryList {
num_items: usize,
item_ids: Vec<usize>
}
impl GroceryList {
fn new() -> Self {
Self {
num_items: 0,
item_ids: vec![]
}
}
fn push(&mut self, item_id: usize) {
self.item_ids.push(item_id);
}
}
fn main() {
let groceries = grocery_list![
0,
9,
8,
5
];
// do something intersting with your GroceryList...
}
Dependencies
~2MB
~44K SLoC