michael@0: // A single Debugger object can set multiple breakpoints at an instruction.
michael@0: 
michael@0: var g = newGlobal();
michael@0: var dbg = Debugger(g);
michael@0: var log = '';
michael@0: dbg.onDebuggerStatement = function (frame) {
michael@0:     log += 'D';
michael@0:     function handler(i) {
michael@0:         return {hit: function (frame) { log += '' + i; }};
michael@0:     }
michael@0:     var f = frame.eval("f").return;
michael@0:     var s = f.script;
michael@0:     var offs = s.getLineOffsets(g.line0 + 2);
michael@0:     for (var i = 0; i < 10; i++) {
michael@0:         var bp = handler(i);
michael@0:         for (var j = 0; j < offs.length; j++)
michael@0:             s.setBreakpoint(offs[j], bp);
michael@0:     }
michael@0:     assertEq(f.call().return, 42);
michael@0:     log += 'X';
michael@0: };
michael@0: 
michael@0: g.eval("var line0 = Error().lineNumber;\n" +
michael@0:        "function f() {\n" +  // line0 + 1
michael@0:        "    return 42;\n" +  // line0 + 2
michael@0:        "}\n" +
michael@0:        "debugger;\n");
michael@0: assertEq(log, 'D0123456789X');