wasmy-vm 0.4.1

virtual machine of wasmy (easily customize my wasm app)
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

use std::fmt::{Display, Formatter};
use std::ops::Deref;
use std::path::PathBuf;

use wasmer::WasmerEnv;

#[derive(Clone, WasmerEnv, Hash, Eq, PartialEq, Debug)]
pub struct WasmUri(String);

impl Deref for WasmUri {
    type Target = String;
    fn deref(&self) -> &Self::Target {
        &self.0
    }
}

impl Display for WasmUri {
    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
        self.0.fmt(f)
    }
}

impl AsRef<str> for WasmUri {
    fn as_ref(&self) -> &str {
        self.0.as_str()
    }
}

impl From<String> for WasmUri {
    fn from(s: String) -> Self {
        WasmUri(s)
    }
}

pub trait WasmInfo<B: AsRef<[u8]>> {
    fn wasm_uri(&self) -> WasmUri;
    fn into_wasm_bytes(self) -> anyhow::Result<B>;
}

impl WasmInfo<Vec<u8>> for PathBuf {
    fn wasm_uri(&self) -> WasmUri {
        WasmUri(if let Ok(p) = self.canonicalize() {
            p.to_string_lossy().to_string()
        } else {
            self.to_string_lossy().to_string()
        })
    }

    fn into_wasm_bytes(self) -> anyhow::Result<Vec<u8>> {
        Ok(std::fs::read(&self)?)
    }
}

impl<B: AsRef<[u8]>> WasmInfo<B> for (&str, B) {
    fn wasm_uri(&self) -> WasmUri {
        WasmUri(self.0.to_string())
    }
    fn into_wasm_bytes(self) -> anyhow::Result<B> {
        Ok(self.1)
    }
}