tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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onExceptionUnwind-resumption-05.js (635B)

      1 // Make sure that stacks in completion values are not lost when an exception
      2 // unwind hook returns undefined.
      3 
      4 let g = newGlobal({ newCompartment: true });
      5 g.eval(`
      6  function foo() {
      7    bar();
      8  }
      9  function bar() {
     10    throw new Error();
     11  }
     12 `);
     13 
     14 let dbg = Debugger(g);
     15 let unwindHits = 0, popHits = 0;
     16 dbg.onExceptionUnwind = frame => {
     17  unwindHits++;
     18  return undefined;
     19 }
     20 dbg.onEnterFrame = frame => {
     21  frame.onPop = completion => {
     22    assertEq(completion.stack.functionDisplayName, "bar");
     23    popHits++;
     24  };
     25 };
     26 
     27 try {
     28  g.eval("foo()");
     29 } catch (e) {}
     30 assertEq(unwindHits, 3);
     31 assertEq(popHits, 3);
     32 dbg.removeDebuggee(g);