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      1 // Copyright 2013 the V8 project authors. All rights reserved.
      2 // Redistribution and use in source and binary forms, with or without
      3 // modification, are permitted provided that the following conditions are
      4 // met:
      5 //
      6 //     * Redistributions of source code must retain the above copyright
      7 //       notice, this list of conditions and the following disclaimer.
      8 //     * Redistributions in binary form must reproduce the above
      9 //       copyright notice, this list of conditions and the following
     10 //       disclaimer in the documentation and/or other materials provided
     11 //       with the distribution.
     12 //     * Neither the name of Google Inc. nor the names of its
     13 //       contributors may be used to endorse or promote products derived
     14 //       from this software without specific prior written permission.
     15 //
     16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27 
     28 // Flags: --expose-debug-as debug --allow-natives-syntax
     29 // Flags: --turbo-deoptimization
     30 
     31 Debug = debug.Debug;
     32 
     33 function listener(event, exec_state, event_data, data) {
     34   if (event != Debug.DebugEvent.Break) return;
     35   try {
     36     assertEquals("foo", exec_state.frame(0).evaluate("bar").value());
     37   } catch (e) {
     38     exception = e;
     39   };
     40   listened++;
     41 };
     42 
     43 var exception = null;
     44 var listened = 0;
     45 
     46 var f = function() {
     47   var bar = "foo";
     48   var baz = bar;  // Break point should be here.
     49   return bar;
     50 }
     51 
     52 var g = function() {
     53   var bar = "foo";
     54   var baz = bar;  // Break point should be here.
     55   return bar;
     56 }
     57 
     58 f();
     59 f();
     60 g();
     61 g();
     62 
     63 // Mark with builtin.
     64 %OptimizeFunctionOnNextCall(f);
     65 if (%IsConcurrentRecompilationSupported()) {
     66   %OptimizeFunctionOnNextCall(g, "concurrent");
     67 }
     68 
     69 // Activate debugger.
     70 Debug.setListener(listener);
     71 
     72  // Set break point.
     73 Debug.setBreakPoint(f, 2, 0);
     74 Debug.setBreakPoint(g, 2, 0);
     75 
     76 // Trigger break point.
     77 f();
     78 g();
     79 
     80 // Assert that break point is set at expected location.
     81 assertTrue(Debug.showBreakPoints(f).indexOf("[B0]var baz = bar;") > 0);
     82 assertTrue(Debug.showBreakPoints(g).indexOf("[B0]var baz = bar;") > 0);
     83 
     84 assertEquals(2, listened);
     85 assertNull(exception);
     86