uptown_funk 0.1.3

Define host functions compatible with Wasmer and Wasmtime
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
150
151
152
153
154
155
156
157
158
159

use crate::{FromWasm, ToWasm, Trap};

impl FromWasm for u32 {
    type From = u32;
    type State = ();

    fn from(
        _state: &mut Self::State,
        _executor: &impl crate::Executor,
        from: Self::From,
    ) -> Result<Self, Trap>
    where
        Self: Sized,
    {
        Ok(from)
    }
}

impl ToWasm for u32 {
    type To = u32;
    type State = ();

    fn to(
        _state: &mut Self::State,
        _executor: &impl crate::Executor,
        host_value: Self,
    ) -> Result<Self::To, Trap> {
        Ok(host_value)
    }
}

impl FromWasm for u64 {
    type From = u64;
    type State = ();

    fn from(
        _state: &mut Self::State,
        _executor: &impl crate::Executor,
        from: Self::From,
    ) -> Result<Self, Trap>
    where
        Self: Sized,
    {
        Ok(from)
    }
}

impl ToWasm for u64 {
    type To = u64;
    type State = ();

    fn to(
        _state: &mut Self::State,
        _executor: &impl crate::Executor,
        host_value: Self,
    ) -> Result<Self::To, Trap> {
        Ok(host_value)
    }
}

impl FromWasm for i64 {
    type From = i64;
    type State = ();

    fn from(
        _state: &mut Self::State,
        _executor: &impl crate::Executor,
        from: Self::From,
    ) -> Result<Self, Trap>
    where
        Self: Sized,
    {
        Ok(from)
    }
}

impl ToWasm for i64 {
    type To = i64;
    type State = ();

    fn to(
        _state: &mut Self::State,
        _executor: &impl crate::Executor,
        host_value: Self,
    ) -> Result<Self::To, Trap> {
        Ok(host_value)
    }
}

impl FromWasm for u16 {
    type From = u32;
    type State = ();

    fn from(
        _state: &mut Self::State,
        _executor: &impl crate::Executor,
        from: Self::From,
    ) -> Result<Self, Trap>
    where
        Self: Sized,
    {
        Ok(from as u16)
    }
}

impl ToWasm for u16 {
    type To = u32;
    type State = ();

    fn to(
        _state: &mut Self::State,
        _executor: &impl crate::Executor,
        host_value: Self,
    ) -> Result<Self::To, Trap> {
        Ok(host_value as u32)
    }
}

impl FromWasm for u8 {
    type From = u32;
    type State = ();

    fn from(
        _state: &mut Self::State,
        _executor: &impl crate::Executor,
        from: Self::From,
    ) -> Result<Self, Trap>
    where
        Self: Sized,
    {
        Ok(from as u8)
    }
}

impl ToWasm for u8 {
    type To = u32;
    type State = ();

    fn to(
        _state: &mut Self::State,
        _executor: &impl crate::Executor,
        host_value: Self,
    ) -> Result<Self::To, Trap> {
        Ok(host_value as u32)
    }
}

impl ToWasm for bool {
    type To = u32;
    type State = ();

    fn to(
        _state: &mut Self::State,
        _executor: &impl crate::Executor,
        host_value: Self,
    ) -> Result<Self::To, Trap> {
        Ok(if host_value { 0 } else { 1 })
    }
}