tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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Debugger-findObjects-classObj-nullProto.js (576B)

      1 const g = newGlobal({ newCompartment: true });
      2 
      3 g.eval(`
      4 var x1 = {};
      5 var x2 = { __proto__: null };
      6 `);
      7 
      8 const dbg = new Debugger();
      9 const gDO = dbg.addDebuggee(g);
     10 
     11 const x1DO = gDO.makeDebuggeeValue(g.x1);
     12 const x2DO = gDO.makeDebuggeeValue(g.x2);
     13 
     14 // A plain object with default prototype should match `Object` query.
     15 const ObjectDO = gDO.makeDebuggeeValue(g.Object);
     16 assertEq(dbg.findObjects({ class: ObjectDO }).includes(x1DO), true);
     17 
     18 // An object with null prototype shouldn't match `Object` query.
     19 assertEq(dbg.findObjects({ class: ObjectDO }).includes(x2DO), false);