1 // Copyright 2015 the V8 project authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // Flags: --expose-debug-as debug 6 7 Debug = debug.Debug 8 var exception = null; 9 var break_count = 0; 10 11 var expected_values = 12 [ReferenceError, undefined, 0, 0, 0, 0, 1, ReferenceError, ReferenceError]; 13 14 function listener(event, exec_state, event_data, data) { 15 try { 16 if (event == Debug.DebugEvent.Break) { 17 assertTrue(exec_state.frameCount() != 0, "FAIL: Empty stack trace"); 18 // Count number of expected breakpoints in this source file. 19 if (!break_count) { 20 var source_text = exec_state.frame(0).func().script().source(); 21 expected_breaks = source_text.match(/\/\/\s*Break\s+\d+\./g).length; 22 print("Expected breaks: " + expected_breaks); 23 } 24 var frameMirror = exec_state.frame(0); 25 26 var v = null;; 27 try { 28 v = frameMirror.evaluate('i').value(); 29 } catch(e) { 30 v = e; 31 } 32 frameMirror.allScopes(); 33 var source = frameMirror.sourceLineText(); 34 print("paused at: " + source); 35 assertTrue(source.indexOf("// Break " + break_count + ".") > 0, 36 "Unexpected pause at: " + source + "\n" + 37 "Expected: // Break " + break_count + "."); 38 if (expected_values[break_count] === ReferenceError) { 39 assertTrue(v instanceof ReferenceError); 40 } else { 41 assertSame(expected_values[break_count], v); 42 43 } 44 ++break_count; 45 46 if (break_count !== expected_breaks) { 47 exec_state.prepareStep(Debug.StepAction.StepIn); 48 print("Next step prepared"); 49 } 50 } 51 } catch(e) { 52 exception = e; 53 print(e, e.stack); 54 } 55 }; 56 57 Debug.setListener(listener); 58 59 var sum = 0; 60 (function (){ 61 'use strict'; 62 63 debugger; // Break 0. 64 65 for (let i=0; // Break 1. 66 i < 1; // Break 2. // Break 6. 67 i++) { // Break 5. 68 let key = i; // Break 3. 69 sum += key; // Break 4. 70 } 71 }()); // Break 7. 72 73 assertNull(exception); // Break 8. 74 assertEquals(expected_breaks, break_count); 75 76 Debug.setListener(null); 77
