topcoat-runtime 0.1.1

A modular, batteries-included Rust web framework for server-rendered apps.
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
137
138
139
140
141
142
143
144
145
146
147
148
149

use ref_cast::RefCast;
use serde::{Deserialize, Serialize};

use crate::{
    BoolSurrogate, OptionSurrogate, StrSurrogate, Surrogate, Surrogated, impl_surrogate,
    impl_surrogate_mut, impl_surrogate_ref,
};

#[derive(Debug, Clone, RefCast)]
#[repr(transparent)]
pub struct ResultSurrogate<T, E>(Result<T, E>);

impl<T, E> ResultSurrogate<T, E> {
    #[inline]
    pub(crate) const fn new(v: Result<T, E>) -> Self {
        Self(v)
    }

    #[inline]
    pub fn is_ok(&self) -> BoolSurrogate {
        BoolSurrogate::new(self.0.is_ok())
    }

    #[inline]
    pub fn is_err(&self) -> BoolSurrogate {
        BoolSurrogate::new(self.0.is_err())
    }

    #[inline]
    pub fn ok(self) -> OptionSurrogate<T> {
        OptionSurrogate::new(self.0.ok())
    }

    #[inline]
    pub fn err(self) -> OptionSurrogate<E> {
        OptionSurrogate::new(self.0.err())
    }
}

impl<T, E> ResultSurrogate<T, E> {
    #[inline]
    pub fn from_ok(v: impl Surrogate<Real = T>) -> Self {
        Self(Result::Ok(v.into_real()))
    }
}

impl<T, E> ResultSurrogate<T, E>
where
    T: Surrogated,
    E: std::fmt::Debug,
{
    /// Returns the contained `Ok` value.
    ///
    /// # Panics
    ///
    /// Panics if the result is `Err`.
    #[inline]
    pub fn unwrap(self) -> T::Surrogate {
        self.0.unwrap().into_surrogate()
    }

    /// Returns the contained `Ok` value, panicking with `msg` if `Err`.
    ///
    /// # Panics
    ///
    /// Panics with `msg` if the result is `Err`.
    #[inline]
    pub fn expect(self, msg: &StrSurrogate) -> T::Surrogate {
        self.0.expect(&msg.0).into_surrogate()
    }
}

impl<T, E> ResultSurrogate<T, E> {
    #[inline]
    pub fn from_err(v: impl Surrogate<Real = E>) -> Self {
        Self(Result::Err(v.into_real()))
    }
}

impl<T, E> ResultSurrogate<T, E>
where
    T: std::fmt::Debug,
    E: Surrogated,
{
    #[inline]
    pub fn unwrap_err(self) -> E::Surrogate {
        self.0.unwrap_err().into_surrogate()
    }

    #[inline]
    pub fn expect_err(self, msg: &StrSurrogate) -> E::Surrogate {
        self.0.expect_err(&msg.to_string()).into_surrogate()
    }
}

impl_surrogate!({T, E} Result<T, E>, ResultSurrogate<T, E>);
impl_surrogate_ref!({T, E} Result<T, E>, ResultSurrogate<T, E>);
impl_surrogate_mut!({T, E} Result<T, E>, ResultSurrogate<T, E>);

#[derive(Serialize, Deserialize)]
#[serde(untagged)]
enum Body<T, E> {
    Ok { t: String, ok: T },
    Err { t: String, err: E },
}

impl<T, E> serde::Serialize for ResultSurrogate<T, E>
where
    for<'a> &'a T: Surrogated,
    for<'a> <&'a T as Surrogated>::Surrogate: serde::Serialize,
    for<'a> &'a E: Surrogated,
    for<'a> <&'a E as Surrogated>::Surrogate: serde::Serialize,
{
    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
    where
        S: serde::Serializer,
    {
        let body = match &self.0 {
            Result::Ok(v) => Body::Ok {
                t: "Result".to_owned(),
                ok: v.into_surrogate(),
            },
            Result::Err(e) => Body::Err {
                t: "Result".to_owned(),
                err: e.into_surrogate(),
            },
        };
        body.serialize(serializer)
    }
}

impl<'de, T, E> serde::Deserialize<'de> for ResultSurrogate<T, E>
where
    T: Surrogated,
    T::Surrogate: serde::Deserialize<'de>,
    E: Surrogated,
    E::Surrogate: serde::Deserialize<'de>,
{
    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
    where
        D: serde::Deserializer<'de>,
    {
        let body = Body::<T::Surrogate, E::Surrogate>::deserialize(deserializer)?;
        Ok(Self(match body {
            Body::Ok { ok, .. } => Result::Ok(ok.into_real()),
            Body::Err { err, .. } => Result::Err(err.into_real()),
        }))
    }
}