jsonic 0.2.14

Fast, small JSON parsing library for rust with no dependencies
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84

use std::collections::{btree_map, BTreeMap};
use std::slice::Iter;

use crate::generics::IterArray::{IterArrayEmpty, IterArrayVec};
use crate::generics::IterMap::{IterMapBTree, IterMapEmpty, IterMapVec};

#[derive(Debug)]
pub(crate) enum Container<K, V> {
    Array(Vec<V>),
    MapVec(Vec<(K, V)>),
    MapBTree(BTreeMap<K, V>),
}

pub(crate) enum IterArray<'a, V> {
    IterArrayEmpty(),
    IterArrayVec(Iter<'a, V>),
}

/// Array elements iterator
pub struct ArrayIterator<'a, V> {
    pub(crate) iter: IterArray<'a, V>,
}

impl<'a, V> Iterator for ArrayIterator<'a, V> {
    type Item = &'a V;

    fn next(&mut self) -> Option<Self::Item> {
        match &mut self.iter {
            IterArrayEmpty() => { None }
            IterArrayVec(iter_vec) => { iter_vec.next() }
        }
    }
}

impl<'a, V> ToOwned for ArrayIterator<'a, V> {
    type Owned = Self;

    fn to_owned(&self) -> Self::Owned {
        match &self.iter {
            IterArrayEmpty() => { ArrayIterator { iter: IterArrayEmpty() } }
            IterArrayVec(iter_vec) => { ArrayIterator { iter: IterArrayVec(iter_vec.to_owned()) } }
        }
    }
}

pub(crate) enum IterMap<'a, K, V> {
    IterMapEmpty(),
    IterMapVec(Iter<'a, (K, V)>),
    IterMapBTree(btree_map::Iter<'a, K, V>),
}

/// Object entries iterator
pub struct MapIterator<'a, K, V> {
    pub(crate) iter: IterMap<'a, K, V>,
}

impl<'a, K, V> Iterator for MapIterator<'a, K, V> {
    type Item = (&'a K, &'a V);

    fn next(&mut self) -> Option<Self::Item> {
        match &mut self.iter {
            IterMapEmpty() => { None }
            IterMapVec(iter_vec) => {
                match iter_vec.next() {
                    None => { None }
                    Some((k, v)) => { Some((k, v)) }
                }
            }
            IterMapBTree(iter_map) => { iter_map.next() }
        }
    }
}

impl<'a, K, V> ToOwned for MapIterator<'a, K, V> {
    type Owned = Self;

    fn to_owned(&self) -> Self::Owned {
        match &self.iter {
            IterMapEmpty() => { MapIterator { iter: IterMapEmpty() } }
            IterMapVec(iter_vec) => { MapIterator { iter: IterMapVec(iter_vec.to_owned()) } }
            IterMapBTree(iter_btree) => { MapIterator { iter: IterMapBTree(iter_btree.to_owned()) } }
        }
    }
}