Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1 | // Copyright 2012 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 |
| 29 | |
| 30 | "use strict"; |
| 31 | let top_level_let = 255; |
| 32 | |
| 33 | // Get the Debug object exposed from the debug context global object. |
| 34 | var Debug = debug.Debug; |
| 35 | |
| 36 | function CheckScope(scope_mirror, scope_expectations, expected_scope_type) { |
| 37 | assertEquals(expected_scope_type, scope_mirror.scopeType()); |
| 38 | |
| 39 | var scope_object = scope_mirror.scopeObject().value(); |
| 40 | |
| 41 | for (let name in scope_expectations) { |
| 42 | let actual = scope_object[name]; |
| 43 | let expected = scope_expectations[name]; |
| 44 | assertEquals(expected, actual); |
| 45 | } |
| 46 | } |
| 47 | |
| 48 | // A copy of the scope types from debug/mirrors.js. |
| 49 | var ScopeType = { Global: 0, |
| 50 | Local: 1, |
| 51 | With: 2, |
| 52 | Closure: 3, |
| 53 | Catch: 4, |
| 54 | Block: 5, |
| 55 | Script: 6}; |
| 56 | |
| 57 | var f1 = (function F1(x) { |
| 58 | function F2(y) { |
| 59 | var z = x + y; |
| 60 | { |
| 61 | var w = 5; |
| 62 | var v = "Capybara"; |
| 63 | var F3 = function(a, b) { |
| 64 | function F4(p) { |
| 65 | return p + a + b + z + w + v.length; |
| 66 | } |
| 67 | return F4; |
| 68 | } |
| 69 | return F3(4, 5); |
| 70 | } |
| 71 | } |
| 72 | return F2(17); |
| 73 | })(5); |
| 74 | |
| 75 | var mirror = Debug.MakeMirror(f1); |
| 76 | |
| 77 | assertEquals(5, mirror.scopeCount()); |
| 78 | |
| 79 | CheckScope(mirror.scope(0), { a: 4, b: 5 }, ScopeType.Closure); |
| 80 | CheckScope(mirror.scope(1), { z: 22, w: 5, v: "Capybara" }, ScopeType.Closure); |
| 81 | CheckScope(mirror.scope(2), { x: 5 }, ScopeType.Closure); |
| 82 | CheckScope(mirror.scope(3), { top_level_let: 255 }, ScopeType.Script); |
| 83 | CheckScope(mirror.scope(4), {}, ScopeType.Global); |
| 84 | |
| 85 | var f2 = (function() { |
| 86 | var v1 = 3; |
| 87 | var v2 = 4; |
| 88 | let l0 = 0; |
| 89 | { |
| 90 | var v3 = 5; |
| 91 | let l1 = 6; |
| 92 | let l2 = 7; |
| 93 | { |
| 94 | var v4 = 8; |
| 95 | let l3 = 9; |
| 96 | { |
| 97 | var v5 = "Cat"; |
| 98 | let l4 = 11; |
| 99 | var v6 = l4; |
| 100 | return function() { |
| 101 | return l0 + v1 + v3 + l2 + l3 + v6; |
| 102 | }; |
| 103 | } |
| 104 | } |
| 105 | } |
| 106 | })(); |
| 107 | |
| 108 | var mirror = Debug.MakeMirror(f2); |
| 109 | |
| 110 | assertEquals(5, mirror.scopeCount()); |
| 111 | |
| 112 | CheckScope(mirror.scope(0), { l3: 9 }, ScopeType.Block); |
| 113 | CheckScope(mirror.scope(1), { l2: 7 }, ScopeType.Block); |
| 114 | CheckScope(mirror.scope(2), { v1:3, l0: 0, v3: 5, v6: 11 }, ScopeType.Closure); |
| 115 | CheckScope(mirror.scope(3), { top_level_let: 255 }, ScopeType.Script); |
| 116 | CheckScope(mirror.scope(4), {}, ScopeType.Global); |