tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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async-instantiate.js (1249B)

      1 const { Module, Instance, Global, instantiate, instantiateStreaming } = WebAssembly;
      2 
      3 const g = new Global({value: "i32", mutable:true}, 0);
      4 
      5 const code = wasmTextToBinary(`(module
      6    (global $g (import "" "g") (mut i32))
      7    (func $start (global.set $g (i32.add (global.get $g) (i32.const 1))))
      8    (start $start)
      9 )`);
     10 const module = new Module(code);
     11 
     12 const importObj = { '': { get g() { g.value++; return g } } };
     13 
     14 g.value = 0;
     15 new Instance(module, importObj);
     16 assertEq(g.value, 2);
     17 
     18 g.value = 0;
     19 instantiate(module, importObj).then(i => {
     20  assertEq(i instanceof Instance, true);
     21  assertEq(g.value, 2);
     22  g.value++;
     23 });
     24 assertEq(g.value, 1);
     25 drainJobQueue();
     26 assertEq(g.value, 3);
     27 
     28 g.value = 0;
     29 instantiate(code, importObj).then(({module,instance}) => {
     30    assertEq(module instanceof Module, true);
     31    assertEq(instance instanceof Instance, true);
     32    assertEq(g.value, 2); g.value++; }
     33 );
     34 drainJobQueue();
     35 assertEq(g.value, 3);
     36 
     37 if (wasmStreamingEnabled()) {
     38  g.value = 0;
     39  instantiateStreaming(code, importObj).then(({module,instance}) => {
     40      assertEq(module instanceof Module, true);
     41      assertEq(instance instanceof Instance, true);
     42      assertEq(g.value, 2);
     43      g.value++;
     44  });
     45  drainJobQueue();
     46  assertEq(g.value, 3);
     47 }