michael@0: // onPop handlers fire even on frames that make tail calls.
michael@0: var g = newGlobal();
michael@0: var dbg = new Debugger(g);
michael@0: var log;
michael@0: 
michael@0: g.eval('function f(n) { if (n > 0) f(n-1); else debugger; }');
michael@0: 
michael@0: dbg.onEnterFrame = function handleEnter(frame) {
michael@0:     log += '(';
michael@0:     frame.onPop = function handlePop(c) {
michael@0:         log += ')';
michael@0:         assertEq(typeof c == "object" && 'return' in c, true);
michael@0:     };
michael@0: };
michael@0: 
michael@0: log = '';
michael@0: g.f(10);
michael@0: assertEq(log, "((((((((((()))))))))))");