michael@0: // A garbage collection in the debugger compartment does not disturb onPop
michael@0: // handlers.
michael@0: var g = newGlobal();
michael@0: var dbg = new Debugger(g);
michael@0: var log;
michael@0: 
michael@0: dbg.onEnterFrame = function handleEnter(frame) {
michael@0:     log += '(';
michael@0:     frame.onPop = function handlePop(completion) {
michael@0:         log += ')';
michael@0:     };
michael@0: };
michael@0: 
michael@0: dbg.onDebuggerStatement = function handleDebugger (frame) {
michael@0:     log += 'd';
michael@0:     // GC in the debugger's compartment only.
michael@0:     gc(dbg);
michael@0: };
michael@0: 
michael@0: log = '';
michael@0: assertEq(g.eval('debugger; 42;'), 42);
michael@0: assertEq(log, '(d)');