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      1 // Copyright 2011 the V8 project authors. All rights reserved.
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      3 // modification, are permitted provided that the following conditions are
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      5 //
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     27 
     28 // Flags: --expose-debug-as debug
     29 // Flags: --turbo-deoptimization
     30 
     31 // This test tests that full code compiled without debug break slots
     32 // is recompiled with debug break slots when debugging is started.
     33 
     34 // Get the Debug object exposed from the debug context global object.
     35 Debug = debug.Debug
     36 
     37 var bp;
     38 var done = false;
     39 var step_count = 0;
     40 
     41 // Debug event listener which steps until the global variable done is true.
     42 function listener(event, exec_state, event_data, data) {
     43   if (event == Debug.DebugEvent.Break) {
     44     if (!done) exec_state.prepareStep(Debug.StepAction.StepNext);
     45     step_count++;
     46   }
     47 };
     48 
     49 // Set the global variables state to prpare the stepping test.
     50 function prepare_step_test() {
     51   done = false;
     52   step_count = 0;
     53 }
     54 
     55 // Test function to step through.
     56 function f() {
     57   var i = 1;
     58   var j = 2;
     59   done = true;
     60 };
     61 
     62 prepare_step_test();
     63 f();
     64 
     65 // Add the debug event listener.
     66 Debug.setListener(listener);
     67 
     68 bp = Debug.setBreakPoint(f, 1);
     69 
     70 prepare_step_test();
     71 f();
     72 assertEquals(4, step_count);
     73 Debug.clearBreakPoint(bp);
     74 
     75 // Set a breakpoint on the first var statement (line 1).
     76 bp = Debug.setBreakPoint(f, 1);
     77 
     78 // Step through the function ensuring that the var statements are hit as well.
     79 prepare_step_test();
     80 f();
     81 assertEquals(4, step_count);
     82 
     83 // Clear the breakpoint and check that no stepping happens.
     84 Debug.clearBreakPoint(bp);
     85 prepare_step_test();
     86 f();
     87 assertEquals(0, step_count);
     88 
     89 // Get rid of the debug event listener.
     90 Debug.setListener(null);
     91