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 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5 | // Flags: --expose-debug-as debug |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6 | |
| 7 | Debug = debug.Debug |
| 8 | |
| 9 | var exception = null; |
| 10 | var log = []; |
| 11 | |
| 12 | function listener(event, exec_state, event_data, data) { |
| 13 | if (event != Debug.DebugEvent.Break) return; |
| 14 | try { |
| 15 | print(event_data.sourceLineText()); |
| 16 | var entry = ""; |
| 17 | for (var i = 0; i < exec_state.frameCount(); i++) { |
| 18 | entry += exec_state.frame(i).sourceLineText().substr(-1); |
| 19 | entry += exec_state.frame(i).sourceColumn(); |
| 20 | } |
| 21 | log.push(entry); |
| 22 | exec_state.prepareStep(Debug.StepAction.StepIn); |
| 23 | } catch (e) { |
| 24 | exception = e; |
| 25 | } |
| 26 | }; |
| 27 | |
| 28 | var target = {}; |
| 29 | var handler = { |
| 30 | has: function(target, name) { |
| 31 | return true; // h |
| 32 | }, // i |
| 33 | get: function(target, name) { |
| 34 | return 42; // j |
| 35 | }, // k |
| 36 | set: function(target, name, value) { |
| 37 | return false; // l |
| 38 | }, // m |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 39 | } |
| 40 | |
| 41 | var proxy = new Proxy(target, handler); |
| 42 | |
| 43 | Debug.setListener(listener); |
| 44 | debugger; // a |
| 45 | var has = "step" in proxy; // b |
| 46 | var get = proxy.step; // c |
| 47 | proxy.step = 43; // d |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 48 | |
| 49 | Debug.setListener(null); // g |
| 50 | |
| 51 | assertNull(exception); |
| 52 | assertTrue(has); |
| 53 | assertEquals(42, get); |
| 54 | |
| 55 | assertEquals([ |
| 56 | "a0", |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 57 | "b17", "h4b17", "i2b17", // [[Has]] |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 58 | "c15", "j4c15", "k2c15", // [[Get]] |
| 59 | "d0", "l4d11", "m2d11", // [[Set]] |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 60 | "g0" |
| 61 | ], log); |