Function get_set_funcref_globals_via_api

tests/all/externals.rs:210–242

()

#[test]
fn get_set_funcref_globals_via_api() -> wasmtime::Result<()> {
    let mut cfg = Config::new();
    cfg.wasm_reference_types(true);
    let engine = Engine::new(&cfg)?;
    let mut store = Store::new(&engine, ());

    let f = Func::wrap(&mut store, || {});

    // Initialize with a null funcref.

    let global = Global::new(
        &mut store,
        GlobalType::new(ValType::FUNCREF, Mutability::Var),
        Val::FuncRef(None),
    )?;
    assert!(global.get(&mut store).unwrap_funcref().is_none());

    global.set(&mut store, Val::FuncRef(Some(f)))?;
    let f2 = global.get(&mut store).unwrap_funcref().cloned().unwrap();
    assert!(FuncType::eq(&f.ty(&store), &f2.ty(&store)));

    // Initialize with a non-null funcref.

    let global = Global::new(
        &mut store,
        GlobalType::new(ValType::FUNCREF, Mutability::Var),
        Val::FuncRef(Some(f)),
    )?;
    let f2 = global.get(&mut store).unwrap_funcref().cloned().unwrap();
    assert!(FuncType::eq(&f.ty(&store), &f2.ty(&store)));

    Ok(())
}

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