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

use bstr::ByteSlice;

use serde::ser::{Error, SerializeMap, SerializeSeq};
use serde::{Serialize, Serializer};

use crate::yaml::raw;
use crate::yaml::serde_hint::RawNumberHint;
use crate::yaml::{Mapping, Sequence, Value};

impl Serialize for Value<'_> {
    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
    where
        S: Serializer,
    {
        match self.data.raw(self.id) {
            raw::Raw::Null(..) => serializer.serialize_none(),
            raw::Raw::Boolean(value) => serializer.serialize_bool(*value),
            raw::Raw::Number(raw) => match raw.hint {
                RawNumberHint::Float32 => match self.as_f32() {
                    Some(value) => serializer.serialize_f32(value),
                    None => serializer.serialize_none(),
                },
                RawNumberHint::Float64 => match self.as_f64() {
                    Some(value) => serializer.serialize_f64(value),
                    None => serializer.serialize_none(),
                },
                RawNumberHint::Unsigned8 => match self.as_u8() {
                    Some(value) => serializer.serialize_u8(value),
                    None => serializer.serialize_none(),
                },
                RawNumberHint::Unsigned16 => match self.as_u16() {
                    Some(value) => serializer.serialize_u16(value),
                    None => serializer.serialize_none(),
                },
                RawNumberHint::Unsigned32 => match self.as_u32() {
                    Some(value) => serializer.serialize_u32(value),
                    None => serializer.serialize_none(),
                },
                RawNumberHint::Unsigned64 => match self.as_u64() {
                    Some(value) => serializer.serialize_u64(value),
                    None => serializer.serialize_none(),
                },
                RawNumberHint::Unsigned128 => match self.as_u128() {
                    Some(value) => serializer.serialize_u128(value),
                    None => serializer.serialize_none(),
                },
                RawNumberHint::Signed8 => match self.as_i8() {
                    Some(value) => serializer.serialize_i8(value),
                    None => serializer.serialize_none(),
                },
                RawNumberHint::Signed16 => match self.as_i16() {
                    Some(value) => serializer.serialize_i16(value),
                    None => serializer.serialize_none(),
                },
                RawNumberHint::Signed32 => match self.as_i32() {
                    Some(value) => serializer.serialize_i32(value),
                    None => serializer.serialize_none(),
                },
                RawNumberHint::Signed64 => match self.as_i64() {
                    Some(value) => serializer.serialize_i64(value),
                    None => serializer.serialize_none(),
                },
                RawNumberHint::Signed128 => match self.as_i128() {
                    Some(value) => serializer.serialize_i128(value),
                    None => serializer.serialize_none(),
                },
            },
            raw::Raw::String(raw) => {
                let string = self.data.str(raw.string);

                if let Ok(string) = string.to_str() {
                    serializer.serialize_str(string)
                } else {
                    serializer.serialize_bytes(string)
                }
            }
            raw::Raw::Mapping(..) => Mapping::new(self.data, self.id).serialize(serializer),
            raw::Raw::Sequence(..) => Sequence::new(self.data, self.id).serialize(serializer),
            _ => Err(S::Error::custom("cannot serialize items")),
        }
    }
}

impl Serialize for Sequence<'_> {
    #[inline]
    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
    where
        S: Serializer,
    {
        let mut seq = serializer.serialize_seq(Some(self.len()))?;

        for item in self.iter() {
            seq.serialize_element(&item)?;
        }

        seq.end()
    }
}

impl Serialize for Mapping<'_> {
    #[inline]
    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
    where
        S: Serializer,
    {
        let mut map = serializer.serialize_map(Some(self.len()))?;

        for (key, value) in self.iter() {
            if let Ok(key) = key.to_str() {
                map.serialize_entry(key, &value)?;
            } else {
                map.serialize_entry(key, &value)?;
            }
        }

        map.end()
    }
}