musli 0.1.8

Müsli is a flexible and efficient serialization framework.
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
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136

use core::marker::PhantomData;

use crate::Context;
use crate::de::{EntriesDecoder, MapDecoder, SizeHint};

use super::super::cursor::Cursor;
use super::{JsonbDecoder, JsonbKeyDecoder, JsonbObjectPairDecoder};

/// A decoder over the payload of a JSONB object, which is the keys and values
/// of its entries written after one another.
pub(crate) struct JsonbObjectDecoder<P, C, M> {
    cx: C,
    cursor: P,
    _marker: PhantomData<M>,
}

impl<'de, P, C, M> JsonbObjectDecoder<P, C, M>
where
    P: Cursor<'de>,
    C: Context,
    M: 'static,
{
    #[inline]
    pub(super) fn new(cx: C, cursor: P) -> Self {
        Self {
            cx,
            cursor,
            _marker: PhantomData,
        }
    }

    /// Finish decoding the object.
    ///
    /// Any entries which have not been decoded are contained in the payload
    /// which the enclosing decoder has already moved past.
    #[inline]
    pub(super) fn end(self) -> Result<(), C::Error> {
        Ok(())
    }
}

impl<'de, P, C, M> MapDecoder<'de> for JsonbObjectDecoder<P, C, M>
where
    P: Cursor<'de>,
    C: Context,
    M: 'static,
{
    type Cx = C;
    type Error = C::Error;
    type Allocator = C::Allocator;
    type Mode = M;
    type DecodeEntry<'this>
        = JsonbObjectPairDecoder<P::Mut<'this>, C, M>
    where
        Self: 'this;
    type DecodeRemainingEntries<'this>
        = JsonbObjectDecoder<P::Mut<'this>, C, M>
    where
        Self: 'this;

    #[inline]
    fn cx(&self) -> Self::Cx {
        self.cx
    }

    #[inline]
    fn size_hint(&self) -> SizeHint {
        SizeHint::any()
    }

    #[inline]
    fn decode_entry(&mut self) -> Result<Option<Self::DecodeEntry<'_>>, Self::Error> {
        if self.cursor.remaining() == 0 {
            return Ok(None);
        }

        Ok(Some(JsonbObjectPairDecoder::new(
            self.cx,
            self.cursor.borrow_mut(),
        )))
    }

    #[inline]
    fn decode_remaining_entries(
        &mut self,
    ) -> Result<Self::DecodeRemainingEntries<'_>, Self::Error> {
        Ok(JsonbObjectDecoder::new(self.cx, self.cursor.borrow_mut()))
    }
}

impl<'de, P, C, M> EntriesDecoder<'de> for JsonbObjectDecoder<P, C, M>
where
    P: Cursor<'de>,
    C: Context,
    M: 'static,
{
    type Cx = C;
    type Error = C::Error;
    type Allocator = C::Allocator;
    type Mode = M;
    type DecodeEntryKey<'this>
        = JsonbKeyDecoder<P::Mut<'this>, C, M>
    where
        Self: 'this;
    type DecodeEntryValue<'this>
        = JsonbDecoder<P::Mut<'this>, C, M>
    where
        Self: 'this;

    #[inline]
    fn cx(&self) -> Self::Cx {
        self.cx
    }

    #[inline]
    fn decode_entry_key(&mut self) -> Result<Option<Self::DecodeEntryKey<'_>>, Self::Error> {
        if self.cursor.remaining() == 0 {
            return Ok(None);
        }

        Ok(Some(JsonbKeyDecoder::new(
            self.cx,
            self.cursor.borrow_mut(),
        )))
    }

    #[inline]
    fn decode_entry_value(&mut self) -> Result<Self::DecodeEntryValue<'_>, Self::Error> {
        Ok(JsonbDecoder::new(self.cx, self.cursor.borrow_mut()))
    }

    #[inline]
    fn end_entries(self) -> Result<(), Self::Error> {
        self.end()
    }
}