const { Module, Instance, Global, instantiate, instantiateStreaming } = WebAssembly; const g = new Global({value: "i32", mutable:true}, 0); const code = wasmTextToBinary(`(module (global $g (import "" "g") (mut i32)) (func $start (set_global $g (i32.add (get_global $g) (i32.const 1)))) (start $start) )`); const module = new Module(code); const importObj = { '': { get g() { g.value++; return g } } }; g.value = 0; new Instance(module, importObj); assertEq(g.value, 2); g.value = 0; instantiate(module, importObj).then(i => { assertEq(i instanceof Instance, true); assertEq(g.value, 2); g.value++; }); assertEq(g.value, 1); drainJobQueue(); assertEq(g.value, 3); g.value = 0; instantiate(code, importObj).then(({module,instance}) => { assertEq(module instanceof Module, true); assertEq(instance instanceof Instance, true); assertEq(g.value, 2); g.value++; } ); drainJobQueue(); assertEq(g.value, 3); if (wasmStreamingEnabled()) { g.value = 0; instantiateStreaming(code, importObj).then(({module,instance}) => { assertEq(module instanceof Module, true); assertEq(instance instanceof Instance, true); assertEq(g.value, 2); g.value++; }); drainJobQueue(); assertEq(g.value, 3); }