serde_json_lodash/array/
pull_all_by.rs

1use crate::lib::{Value};
2
3/// See lodash [pullAllBy](https://lodash.com/docs/#pullAllBy)
4pub fn pull_all_by(mut array: Value, values: Value, iteratee: fn(&Value) -> &Value) -> Value {
5    let new_vec = match array {
6        Value::Null | Value::Bool(_) | Value::Number(_) | Value::String(_) | Value::Object(_) => {
7            return array
8        }
9        Value::Array(ref vec) => {
10            let values_vec = match values {
11                Value::Null
12                | Value::Bool(_)
13                | Value::Number(_)
14                | Value::String(_)
15                | Value::Object(_) => return array,
16                Value::Array(vec) => vec,
17            };
18            let mut new_vec = vec![];
19            'a: for item in vec.iter() {
20                let id_item = iteratee(item);
21                for value in values_vec.iter() {
22                    let id_value = iteratee(value);
23                    if id_item == id_value {
24                        continue 'a;
25                    }
26                }
27                new_vec.push(item.clone())
28            }
29            new_vec
30        }
31    };
32    *array.as_array_mut().unwrap() = new_vec;
33    array
34}
35
36/// Based on [pull_all_by()]
37///
38/// Examples:
39///
40/// ```rust
41/// #[macro_use] extern crate serde_json_lodash;
42/// use serde_json::json;
43/// let array = json!([{ 'x': 1 }, { 'x': 2 }, { 'x': 3 }, { 'x': 1 }]);
44/// // conflict with fn, not implemented
45/// // assert_eq!(
46/// //   pull_all_by!(array, json!([{ 'x': 1 }, { 'x': 3 }]), "x"),
47/// //   json!(0)
48/// // );
49/// assert_eq!(
50///   pull_all_by!(array, json!([{ 'x': 1 }, { 'x': 3 }]), |o| &o["x"]),
51///   json!([{ 'x': 2 }])
52/// );
53/// ```
54///
55/// More examples:
56///
57/// ```rust
58/// # #[macro_use] extern crate serde_json_lodash;
59/// # use serde_json::json;
60/// assert_eq!(pull_all_by!(), json!(null));
61/// assert_eq!(pull_all_by!(json!(null)), json!(null));
62/// assert_eq!(pull_all_by!(json!(false)), json!(false));
63/// assert_eq!(pull_all_by!(json!(0)), json!(0));
64/// assert_eq!(pull_all_by!(json!("")), json!(""));
65/// assert_eq!(pull_all_by!(json!([])), json!([]));
66/// assert_eq!(pull_all_by!(json!([[]]), json!([])), json!([[]]));
67/// assert_eq!(pull_all_by!(json!([{}]), json!({})), json!([{}]));
68/// assert_eq!(pull_all_by!(json!([null]), json!([null])), json!([]));
69/// assert_eq!(pull_all_by!(json!([null,0]), json!([null]), |x| &x), json!([0]));
70/// assert_eq!(pull_all_by!(json!([null,0]), json!([null]), |x| &x["__non__"]), json!([]));
71/// assert_eq!(pull_all_by!(json!({})), json!({}));
72/// ```
73#[macro_export]
74macro_rules! pull_all_by {
75    () => {
76        json!(null)
77    };
78    ($a:expr $(,)*) => {
79        $a
80    };
81    ($a:expr, $b:expr $(,)*) => {
82        $crate::pull_all($a, $b)
83    };
84    ($a:expr, $b:expr, $c:expr $(,)*) => {
85        $crate::pull_all_by($a, $b, $c)
86    };
87    ($a:expr, $b:expr, $c:expr, $($rest:tt)*) => {
88        $crate::pull_all_by($a, $b, $c)
89    };
90}
serde_json_lodash/array/pull_all_by.rs

serde_json_lodash/array/
pull_all_by.rs
