michael@0: // frame.eval can evaluate code in a frame pushed in another context. Bug 749697.
michael@0: 
michael@0: // In other words, the debugger can see all frames on the stack, even though
michael@0: // each frame is attached to a particular JSContext and multiple JSContexts may
michael@0: // have frames on the stack.
michael@0: 
michael@0: var g = newGlobal();
michael@0: g.eval('function f(a) { debugger; evaluate("debugger;", {newContext: true}); }');
michael@0: 
michael@0: var dbg = new Debugger(g);
michael@0: var hits = 0;
michael@0: dbg.onDebuggerStatement = function (frame1) {
michael@0:     dbg.onDebuggerStatement = function (frame2) {
michael@0:         assertEq(frame1.eval("a").return, 31);
michael@0:         hits++;
michael@0:     };
michael@0: };
michael@0: 
michael@0: g.f(31);
michael@0: assertEq(hits, 1);