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| 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 --harmony-default-parameters |
| 6 |
| 7 // Get the Debug object exposed from the debug context global object. |
| 8 Debug = debug.Debug |
| 9 |
| 10 listenerComplete = false; |
| 11 breakPointCount = 0; |
| 12 |
| 13 function listener(event, exec_state, event_data, data) { |
| 14 if (event == Debug.DebugEvent.Break) { |
| 15 breakPointCount++; |
| 16 if (breakPointCount == 1) { |
| 17 // Break point in initializer for parameter `a`, invoked by |
| 18 // initializer for parameter `b` |
| 19 assertEquals('default', exec_state.frame(1).evaluate('mode').value()); |
| 20 |
| 21 // initializer for `b` can't refer to `b` |
| 22 assertThrows(function() { |
| 23 return exec_state.frame(1).evaluate('b').value(); |
| 24 }, ReferenceError); |
| 25 |
| 26 assertThrows(function() { |
| 27 return exec_state.frame(1).evaluate('c'); |
| 28 }, ReferenceError); |
| 29 } else if (breakPointCount == 2) { |
| 30 // Break point in IIFE initializer for parameter `c` |
| 31 assertEquals('modeFn', exec_state.frame(1).evaluate('a.name').value()); |
| 32 assertEquals('default', exec_state.frame(1).evaluate('b').value()); |
| 33 assertThrows(function() { |
| 34 return exec_state.frame(1).evaluate('c'); |
| 35 }, ReferenceError); |
| 36 } else if (breakPointCount == 3) { |
| 37 // Break point in function body --- `c` parameter is shadowed |
| 38 assertEquals('modeFn', exec_state.frame(0).evaluate('a.name').value()); |
| 39 assertEquals('default', exec_state.frame(0).evaluate('b').value()); |
| 40 // TODO(caitp): fix scoping so that parameter `c` can be shadowed by vars |
| 41 //assertEquals(true, exec_state.frame(0).evaluate('c').value()); |
| 42 } |
| 43 } |
| 44 }; |
| 45 |
| 46 // Add the debug event listener. |
| 47 Debug.setListener(listener); |
| 48 |
| 49 function f(a = function modeFn(mode) { |
| 50 debugger; |
| 51 return mode; |
| 52 }, |
| 53 b = a("default"), |
| 54 c = (function() { |
| 55 debugger; |
| 56 })()) { |
| 57 // TODO(caitp): fix scoping so that parameter `c` can be shadowed by vars |
| 58 //var c = true; |
| 59 debugger; |
| 60 }; |
| 61 |
| 62 f(); |
| 63 |
| 64 // Make sure that the debug event listener vas invoked. |
| 65 assertEquals(3, breakPointCount); |
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