Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 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 --allow-natives-syntax |
| 6 | |
| 7 | // Test that live-editing a frame above one that uses new.target succeeds. |
| 8 | |
| 9 | Debug = debug.Debug |
| 10 | var wrapper_calls = 0; |
| 11 | var construct_calls = 0; |
| 12 | var exceptions = 0; |
| 13 | var results = []; |
| 14 | var replace_again; |
| 15 | |
| 16 | eval(` |
| 17 | function LogNewTarget(arg) { |
| 18 | construct_calls++; |
| 19 | results.push(new.target); |
| 20 | } |
| 21 | function Wrapper() { |
| 22 | wrapper_calls++; |
| 23 | ReplaceOnce(); |
| 24 | new LogNewTarget(true); |
| 25 | } |
| 26 | `); |
| 27 | |
| 28 | function Replace(fun, original, patch) { |
| 29 | %ExecuteInDebugContext(function() { |
| 30 | var change_log = []; |
| 31 | try { |
| 32 | var script = Debug.findScript(fun); |
| 33 | var patch_pos = script.source.indexOf(original); |
| 34 | Debug.LiveEdit.TestApi.ApplySingleChunkPatch( |
| 35 | script, patch_pos, original.length, patch, change_log); |
| 36 | } catch (e) { |
| 37 | exceptions++; |
| 38 | } |
| 39 | }); |
| 40 | } |
| 41 | |
| 42 | function ReplaceOnce(x) { |
| 43 | if (replace_again) { |
| 44 | replace_again = false; |
| 45 | Replace(Wrapper, "true", "false"); |
| 46 | } |
| 47 | } |
| 48 | |
| 49 | function Revert() { |
| 50 | Replace(Wrapper, "false", "true"); |
| 51 | } |
| 52 | |
| 53 | replace_again = true; |
| 54 | ReplaceOnce(); |
| 55 | Wrapper(); |
| 56 | Revert(); |
| 57 | assertEquals(1, construct_calls); |
| 58 | assertEquals(1, wrapper_calls); |
| 59 | assertEquals(0, exceptions); // Replace succeeds |
| 60 | assertEquals([LogNewTarget], results); |
| 61 | |
| 62 | Wrapper(); |
| 63 | assertEquals(2, construct_calls); |
| 64 | assertEquals(2, wrapper_calls); |
| 65 | assertEquals(0, exceptions); // Replace succeeds |
| 66 | assertEquals([LogNewTarget, LogNewTarget], results); |
| 67 | |
| 68 | replace_again = true; |
| 69 | Wrapper(); |
| 70 | assertEquals(3, construct_calls); |
| 71 | assertEquals(4, wrapper_calls); // Restarts |
| 72 | assertEquals(0, exceptions); // Replace succeeds |
| 73 | assertEquals([LogNewTarget, LogNewTarget, LogNewTarget], results); |