Function create_get_set_externref_tables_via_api

tests/all/externals.rs:307–333

()

#[test]
fn create_get_set_externref_tables_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 table_ty = TableType::new(RefType::EXTERNREF, 10, None);
    let init = ExternRef::new(&mut store, 42_usize)?;
    let table = Table::new(&mut store, table_ty, init.into())?;

    assert_eq!(
        *table
            .get(&mut store, 5)
            .unwrap()
            .unwrap_extern()
            .unwrap()
            .data(&store)?
            .expect("should have host data")
            .downcast_ref::<usize>()
            .unwrap(),
        42
    );
    table.set(&mut store, 5, Ref::Extern(None))?;
    assert!(table.get(&mut store, 5).unwrap().unwrap_extern().is_none());

    Ok(())
}

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