Function receive_null_funcref_from_wasm

tests/all/funcref.rs:82–103

()

#[test]
#[cfg_attr(miri, ignore)]
fn receive_null_funcref_from_wasm() -> wasmtime::Result<()> {
    let (mut store, module) = ref_types_module(
        false,
        r#"
            (module
                (func (export "get-null") (result funcref)
                    ref.null func
                )
            )
        "#,
    )?;

    let instance = Instance::new(&mut store, &module, &[])?;
    let get_null = instance.get_func(&mut store, "get-null").unwrap();

    let mut results = [Val::I32(0)];
    get_null.call(&mut store, &[], &mut results)?;
    let result_func = results[0].unwrap_funcref();
    assert!(result_func.is_none());

    Ok(())
}

#[test]
fn wrong_store() -> wasmtime::Result<()> {