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
137
138
139
140
141

use super::*;

macro_rules! content_types {
    ($(
        $(#[$attr:meta])*
        type $name:ident($content_loader:ident -> $content_type:literal) {
            $(#[$alloc_attr:meta])*
            fn new_static($static:ty);
            $(#[$static_fn_attr:meta])*
            fn new_alloc($alloc:ty);
            $(#[$from_file_attr:meta])*
            fn from_file();
        }
    )+) => ($(
        $(#[$attr])*
        #[repr(transparent)]
        #[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
        pub struct $name($content_loader);

        impl $name {
            $(#[$alloc_attr])*
            #[inline]
            pub const fn new_static(s: $static) -> Self {
                Self($content_loader::new_static(s))
            }
            $(#[$static_fn_attr])*
            #[inline]
            pub fn new_alloc(s: $alloc) -> Self {
                Self($content_loader::new_alloc(s))
            }
            $(#[$from_file_attr])*
            #[inline]
            pub async fn from_file<P: AsRef<Path>>(path: P) -> Result<Self> {
                $content_loader::from_file(path).await.map(Self)
            }
        }

        impl From<$alloc> for $name {
            #[inline]
            fn from(this: $alloc) -> Self {
                Self::new_alloc(this)
            }
        }

        impl From<$static> for $name {
            #[inline]
            fn from(this: $static) -> Self {
                Self::new_static(this)
            }
        }

        impl fmt::Display for $name {
            #[inline]
            fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
                self.0.fmt(f)
            }
        }

        impl From<$name> for Body {
            #[inline]
            fn from(this: $name) -> Self {
                Body::from(this.0)
            }
        }

        impl ::axum::response::IntoResponse for $name {
            fn into_response(self) -> RawResponse {
                RawResponse::builder()
                    .header("Content-Type", $content_type)
                    .body(self.into())
                    .unwrap_or_default()
            }
        }
    )+);
}

content_types! {
    /// A type representing HTML content.
    type Html(StringContentLoader -> "text/html") {
        /// Create a new `Html` from a static string.
        fn new_static(&'static str);
        /// Create a new `Html` from an allocated string.
        fn new_alloc(String);
        /// Create a new `Html` from a file.
        fn from_file();
    }
    /// A type representing CSS content.
    type Css(StringContentLoader -> "text/css") {
        /// Create a new `Css` from a static string.
        fn new_static(&'static str);
        /// Create a new `Css` from an allocated string.
        fn new_alloc(String);
        /// Create a new `Css` from a file.
        fn from_file();
    }
    /// A type representing JavaScript content.
    type Js(StringContentLoader -> "application/javascript") {
        /// Create a new `Js` from a static string.
        fn new_static(&'static str);
        /// Create a new `Js` from an allocated string.
        fn new_alloc(String);
        /// Create a new `Js` from a file.
        fn from_file();
    }
    /// A type representing JSON content.
    type Json(StringContentLoader -> "application/json") {
        /// Create a new `Json` from a static string.
        fn new_static(&'static str);
        /// Create a new `Json` from an allocated string.
        fn new_alloc(String);
        /// Create a new `Json` from a file.
        fn from_file();
    }
    /// A type representing XML content.
    type Xml(StringContentLoader -> "application/xml") {
        /// Create a new `Xml` from a static string.
        fn new_static(&'static str);
        /// Create a new `Xml` from an allocated string.
        fn new_alloc(String);
        /// Create a new `Xml` from a file.
        fn from_file();
    }
    /// A type representing plain text content.
    type Text(StringContentLoader -> "text/plain") {
        /// Create a new `Text` from a static string.
        fn new_static(&'static str);
        /// Create a new `Text` from an allocated string.
        fn new_alloc(String);
        /// Create a new `Text` from a file.
        fn from_file();
    }
    /// A type representing binary content.
    type Binary(BytesContentLoader -> "application/octet-stream") {
        /// Create a new `Binary` from a static byte slice.
        fn new_static(&'static [u8]);
        /// Create a new `Binary` from an allocated `Vec<u8>`.
        fn new_alloc(Vec<u8>);
        /// Create a new `Binary` from a file.
        fn from_file();
    }
}