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     27 
     28 // Flags: --expose-debug-as debug
     29 
     30 // This test tests that full code compiled without debug break slots
     31 // is recompiled with debug break slots when debugging is started.
     32 
     33 // Get the Debug object exposed from the debug context global object.
     34 Debug = debug.Debug
     35 
     36 var bp;
     37 var done = false;
     38 var step_count = 0;
     39 
     40 // Debug event listener which steps until the global variable done is true.
     41 function listener(event, exec_state, event_data, data) {
     42   if (event == Debug.DebugEvent.Break) {
     43     if (!done) exec_state.prepareStep(Debug.StepAction.StepNext);
     44     step_count++;
     45   }
     46 };
     47 
     48 // Set the global variables state to prpare the stepping test.
     49 function prepare_step_test() {
     50   done = false;
     51   step_count = 0;
     52 }
     53 
     54 // Test function to step through.
     55 function f() {
     56   var i = 1;
     57   var j = 2;
     58   done = true;
     59 };
     60 
     61 prepare_step_test();
     62 f();
     63 
     64 // Add the debug event listener.
     65 Debug.setListener(listener);
     66 
     67 bp = Debug.setBreakPoint(f, 1);
     68 
     69 prepare_step_test();
     70 f();
     71 assertEquals(4, step_count);
     72 Debug.clearBreakPoint(bp);
     73 
     74 // Set a breakpoint on the first var statement (line 1).
     75 bp = Debug.setBreakPoint(f, 1);
     76 
     77 // Step through the function ensuring that the var statements are hit as well.
     78 prepare_step_test();
     79 f();
     80 assertEquals(4, step_count);
     81 
     82 // Clear the breakpoint and check that no stepping happens.
     83 Debug.clearBreakPoint(bp);
     84 prepare_step_test();
     85 f();
     86 assertEquals(0, step_count);
     87 
     88 // Get rid of the debug event listener.
     89 Debug.setListener(null);
     90