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

//! [`TryIntoHeaderValue`] trait and implementations.

use std::convert::TryFrom as _;

use bytes::Bytes;
use http::{header::InvalidHeaderValue, Error as HttpError, HeaderValue};
use mime::Mime;

/// An interface for types that can be converted into a [`HeaderValue`].
pub trait TryIntoHeaderValue: Sized {
    /// The type returned in the event of a conversion error.
    type Error: Into<HttpError>;

    /// Try to convert value to a HeaderValue.
    fn try_into_value(self) -> Result<HeaderValue, Self::Error>;
}

impl TryIntoHeaderValue for HeaderValue {
    type Error = InvalidHeaderValue;

    #[inline]
    fn try_into_value(self) -> Result<HeaderValue, Self::Error> {
        Ok(self)
    }
}

impl TryIntoHeaderValue for &HeaderValue {
    type Error = InvalidHeaderValue;

    #[inline]
    fn try_into_value(self) -> Result<HeaderValue, Self::Error> {
        Ok(self.clone())
    }
}

impl TryIntoHeaderValue for &str {
    type Error = InvalidHeaderValue;

    #[inline]
    fn try_into_value(self) -> Result<HeaderValue, Self::Error> {
        self.parse()
    }
}

impl TryIntoHeaderValue for &[u8] {
    type Error = InvalidHeaderValue;

    #[inline]
    fn try_into_value(self) -> Result<HeaderValue, Self::Error> {
        HeaderValue::from_bytes(self)
    }
}

impl TryIntoHeaderValue for Bytes {
    type Error = InvalidHeaderValue;

    #[inline]
    fn try_into_value(self) -> Result<HeaderValue, Self::Error> {
        HeaderValue::from_maybe_shared(self)
    }
}

impl TryIntoHeaderValue for Vec<u8> {
    type Error = InvalidHeaderValue;

    #[inline]
    fn try_into_value(self) -> Result<HeaderValue, Self::Error> {
        HeaderValue::try_from(self)
    }
}

impl TryIntoHeaderValue for String {
    type Error = InvalidHeaderValue;

    #[inline]
    fn try_into_value(self) -> Result<HeaderValue, Self::Error> {
        HeaderValue::try_from(self)
    }
}

impl TryIntoHeaderValue for usize {
    type Error = InvalidHeaderValue;

    #[inline]
    fn try_into_value(self) -> Result<HeaderValue, Self::Error> {
        HeaderValue::try_from(self.to_string())
    }
}

impl TryIntoHeaderValue for i64 {
    type Error = InvalidHeaderValue;

    #[inline]
    fn try_into_value(self) -> Result<HeaderValue, Self::Error> {
        HeaderValue::try_from(self.to_string())
    }
}

impl TryIntoHeaderValue for u64 {
    type Error = InvalidHeaderValue;

    #[inline]
    fn try_into_value(self) -> Result<HeaderValue, Self::Error> {
        HeaderValue::try_from(self.to_string())
    }
}

impl TryIntoHeaderValue for i32 {
    type Error = InvalidHeaderValue;

    #[inline]
    fn try_into_value(self) -> Result<HeaderValue, Self::Error> {
        HeaderValue::try_from(self.to_string())
    }
}

impl TryIntoHeaderValue for u32 {
    type Error = InvalidHeaderValue;

    #[inline]
    fn try_into_value(self) -> Result<HeaderValue, Self::Error> {
        HeaderValue::try_from(self.to_string())
    }
}

impl TryIntoHeaderValue for Mime {
    type Error = InvalidHeaderValue;

    #[inline]
    fn try_into_value(self) -> Result<HeaderValue, Self::Error> {
        HeaderValue::from_str(self.as_ref())
    }
}