tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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Frame-onPop-03.js (892B)


      1 // When an exception is propagated out of multiple frames, their onPop
      2 // and onExceptionUnwind handlers are called in the correct order.
      3 var g = newGlobal({newCompartment: true});
      4 g.eval("function f() { throw 'mud'; }");
      5 g.eval("function g() { f(); }");
      6 g.eval("function h() { g(); }");
      7 g.eval("function i() { h(); }");
      8 
      9 var dbg = new Debugger(g);
     10 var log;
     11 function makePopHandler(label) {
     12    return function handlePop(completion) { 
     13        log += label;
     14        assertEq(completion.throw, "mud");
     15    };
     16 }
     17 dbg.onEnterFrame = function handleEnter(f) {
     18    log += "(" + f.callee.name;
     19    f.onPop = makePopHandler(")" + f.callee.name);  
     20 };
     21 dbg.onExceptionUnwind = function handleExceptionUnwind(f, x) {
     22    assertEq(x, 'mud');
     23    log += "u" + f.callee.name;
     24 };
     25 log = '';
     26 try {
     27    g.i();
     28 } catch (x) {
     29    log += 'c';
     30    assertEq(x, "mud");
     31 }
     32 assertEq(log, "(i(h(g(fuf)fug)guh)hui)ic");