onExceptionUnwind-03.js (1314B)
1 // The onExceptionUnwind hook is called multiple times as the stack unwinds. 2 3 var g = newGlobal({newCompartment: true}); 4 g.debuggeeGlobal = this; 5 g.dbg = null; 6 g.eval("(" + function () { 7 dbg = new Debugger(debuggeeGlobal); 8 dbg.onExceptionUnwind = function (frame, exc) { 9 assertEq(frame instanceof Debugger.Frame, true); 10 assertEq(exc instanceof Debugger.Object, true); 11 var s = '!'; 12 for (var f = frame; f; f = f.older) 13 if (f.type === "call") 14 s += f.callee.name; 15 s += ', '; 16 debuggeeGlobal.log += s; 17 }; 18 } + ")();"); 19 20 var log; 21 22 function k() { 23 try { 24 throw new Error("oops"); // hook call 1 25 } finally { 26 log += 'k-finally, '; 27 } // hook call 2 28 } 29 30 function j() { 31 k(); // hook call 3 32 log += 'j-unreached, '; 33 } 34 35 function h() { 36 try { 37 j(); // hook call 4 38 log += 'h-unreached, '; 39 } catch (exc) { 40 log += 'h-catch, '; 41 throw exc; // hook call 5 42 } 43 } 44 45 function f() { 46 try { 47 h(); // hook call 6 48 } catch (exc) { 49 log += 'f-catch, '; 50 } 51 log += 'f-after, '; 52 } 53 54 log = ''; 55 f(); 56 g.dbg.enabled = false; 57 assertEq(log, '!kjhf, k-finally, !kjhf, !jhf, !hf, h-catch, !hf, !f, f-catch, f-after, ');