wasmtime-cli 44.0.1

Command-line interface for 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

#![cfg(not(miri))]

use wasmtime::*;

#[test]
fn same_import_names_still_distinct() -> wasmtime::Result<()> {
    const WAT: &str = r#"
(module
  (import "" "" (func $a (result i32)))
  (import "" "" (func $b (result f32)))
  (func (export "foo") (result i32)
    call $a
    call $b
    i32.trunc_f32_u
    i32.add)
)
    "#;

    let mut store = Store::<()>::default();
    let engine = store.engine().clone();
    let module = Module::new(&engine, WAT)?;

    let imports = [
        Func::new(
            &mut store,
            FuncType::new(&engine, None, Some(ValType::I32)),
            |_, params, results| {
                assert!(params.is_empty());
                assert_eq!(results.len(), 1);
                results[0] = 1i32.into();
                Ok(())
            },
        )
        .into(),
        Func::new(
            &mut store,
            FuncType::new(&engine, None, Some(ValType::F32)),
            |_, params, results| {
                assert!(params.is_empty());
                assert_eq!(results.len(), 1);
                results[0] = 2.0f32.into();
                Ok(())
            },
        )
        .into(),
    ];
    let instance = Instance::new(&mut store, &module, &imports)?;

    let func = instance.get_typed_func::<(), i32>(&mut store, "foo")?;
    let result = func.call(&mut store, ())?;
    assert_eq!(result, 3);
    Ok(())
}