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Implement Linker::module_async (#3121)

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This implements and adds the async counterpart of the `Linker::module`
method.

Closes #3077
This commit is contained in:
Alex Crichton
2021-07-27 16:17:45 -05:00
committed by GitHub
parent b5f7b2f86a
commit 9b088756b3
2 changed files with 197 additions and 31 deletions
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82
tests/all/async_functions.rs
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@@ -639,3 +639,85 @@ fn recursive_async() -> Result<()> {
run(f2.call_async(&mut store, &[]))?;
Ok(())
}
#[test]
fn linker_module_command() -> Result<()> {
run(async {
let mut store = async_store();
let mut linker = Linker::new(store.engine());
let module1 = Module::new(
store.engine(),
r#"
(module
(global $g (mut i32) (i32.const 0))
(func (export "_start"))
(func (export "g") (result i32)
global.get $g
i32.const 1
global.set $g)
)
"#,
)?;
let module2 = Module::new(
store.engine(),
r#"
(module
(import "" "g" (func (result i32)))
(func (export "get") (result i32)
call 0)
)
"#,
)?;
linker.module_async(&mut store, "", &module1).await?;
let instance = linker.instantiate_async(&mut store, &module2).await?;
let f = instance.get_typed_func::<(), i32, _>(&mut store, "get")?;
assert_eq!(f.call_async(&mut store, ()).await?, 0);
assert_eq!(f.call_async(&mut store, ()).await?, 0);
Ok(())
})
}
#[test]
fn linker_module_reactor() -> Result<()> {
run(async {
let mut store = async_store();
let mut linker = Linker::new(store.engine());
let module1 = Module::new(
store.engine(),
r#"
(module
(global $g (mut i32) (i32.const 0))
(func (export "g") (result i32)
global.get $g
i32.const 1
global.set $g)
)
"#,
)?;
let module2 = Module::new(
store.engine(),
r#"
(module
(import "" "g" (func (result i32)))
(func (export "get") (result i32)
call 0)
)
"#,
)?;
linker.module_async(&mut store, "", &module1).await?;
let instance = linker.instantiate_async(&mut store, &module2).await?;
let f = instance.get_typed_func::<(), i32, _>(&mut store, "get")?;
assert_eq!(f.call_async(&mut store, ()).await?, 0);
assert_eq!(f.call_async(&mut store, ()).await?, 1);
Ok(())
})
}