tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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dependent-promises.js (1045B)

      1 // |reftest| skip-if(!xulRuntime.shell) -- needs Debugger
      2 
      3 var g = newGlobal({newCompartment: true});
      4 var dbg = new Debugger(g);
      5 var gw = dbg.addDebuggee(g);
      6 
      7 g.eval(`
      8 var p = new Promise(() => {});
      9 p.name = "p";
     10 var q = p.then();
     11 q.name = "q";
     12 var r = p.then(null, () => {});
     13 r.name = "r";
     14 var s = Promise.all([p, q]);
     15 s.name = "s";
     16 var t = Promise.race([r, s]);
     17 t.name = "t";
     18 `);
     19 
     20 function getDependentNames(promise) {
     21    return gw.makeDebuggeeValue(promise).promiseDependentPromises.map((p) => p.getOwnPropertyDescriptor('name').value);
     22 }
     23 
     24 function arraysEqual(arr1, arr2, msg) {
     25    assertEq(arr1.length, arr2.length, msg + ": length");
     26    for (var i = 0; i < arr1.length; ++i) {
     27        assertEq(arr1[i], arr2[i], msg + ": [" + i + "]");
     28    }
     29 }
     30 
     31 arraysEqual(getDependentNames(g.p), ["q", "r", "s"], "deps for p");
     32 arraysEqual(getDependentNames(g.q), ["s"], "deps for q");
     33 arraysEqual(getDependentNames(g.r), ["t"], "deps for r");
     34 arraysEqual(getDependentNames(g.s), ["t"], "deps for s");
     35 
     36 this.reportCompare && reportCompare(true,true);