michael@0: // frame.onStep can coexist with breakpoints.
michael@0: 
michael@0: var g = newGlobal();
michael@0: var dbg = Debugger(g);
michael@0: var log = '';
michael@0: dbg.onEnterFrame = function (frame) {
michael@0:     var handler = {hit: function () { log += 'B'; }};
michael@0:     var lines = frame.script.getAllOffsets();
michael@0:     for (var line in lines) {
michael@0:         line = Number(line);
michael@0:         var offs = lines[line];
michael@0:         for (var i = 0; i < offs.length; i++)
michael@0:             frame.script.setBreakpoint(offs[i], handler);
michael@0:     }
michael@0: 
michael@0:     frame.onStep = function () { log += 's'; };
michael@0: };
michael@0: 
michael@0: g.eval("one = 1;\n" +
michael@0:        "two = 2;\n" +
michael@0:        "three = 3;\n" +
michael@0:        "four = 4;\n");
michael@0: assertEq(g.four, 4);
michael@0: 
michael@0: // Breakpoints hit on all four lines.
michael@0: assertEq(log.replace(/[^B]/g, ''), 'BBBB');
michael@0: 
michael@0: // onStep was called between each pair of breakpoints.
michael@0: assertEq(/BB/.exec(log), null);