vk_method/params/
pairs_array.rs

1use super::Params;
2use serde::Serialize;
3
4/// Newtype for conversion array of pairs into [Params]
5///
6/// See also <https://stackoverflow.com/questions/63119000/why-am-i-required-to-cover-t-in-impl-foreigntraitlocaltype-for-t-e0210>
7/// 
8/// # Example
9/// ```
10/// use vk_method::{Params, PairsArray};
11/// use ijson::ijson;
12/// 
13/// let array = [("user_id", 1)];
14/// 
15/// let params = Params::try_from(PairsArray(array)).unwrap();
16/// 
17/// assert_eq!(
18///     params,
19///     Params(vec![("user_id".to_string(), ijson!(1))])
20/// );
21///```
22pub struct PairsArray<K, V, const N: usize>(pub [(K, V); N])
23where
24    K: ToString,
25    V: Serialize;
26
27impl<K, V, const N: usize> TryFrom<PairsArray<K, V, N>> for Params
28where
29    K: ToString,
30    V: Serialize
31{
32    type Error = serde_json::Error;
33    
34    fn try_from(array: PairsArray<K, V, N>) -> Result<Self, Self::Error> {
35        let mut vector = Vec::with_capacity(N);
36
37        for (key, value) in array.0 {
38            vector.push((key.to_string(), ijson::to_value(value)?))
39        }
40
41        Ok(Params(vector))
42    }
43}
vk_method/params/pairs_array.rs

vk_method/params/
pairs_array.rs
