Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1 | // Copyright 2014 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 | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5 | // Flags: --expose-debug-as debug --ignition-generators |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6 | // Test the mirror object for functions. |
| 7 | |
| 8 | function *generator(f) { |
| 9 | "use strict"; |
| 10 | yield; |
| 11 | f(); |
| 12 | yield; |
| 13 | } |
| 14 | |
| 15 | function MirrorRefCache(json_refs) { |
| 16 | var tmp = eval('(' + json_refs + ')'); |
| 17 | this.refs_ = []; |
| 18 | for (var i = 0; i < tmp.length; i++) { |
| 19 | this.refs_[tmp[i].handle] = tmp[i]; |
| 20 | } |
| 21 | } |
| 22 | |
| 23 | MirrorRefCache.prototype.lookup = function(handle) { |
| 24 | return this.refs_[handle]; |
| 25 | } |
| 26 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 27 | function TestGeneratorMirror(g, status, line, column, receiver) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 28 | // Create mirror and JSON representation. |
| 29 | var mirror = debug.MakeMirror(g); |
| 30 | var serializer = debug.MakeMirrorSerializer(); |
| 31 | var json = JSON.stringify(serializer.serializeValue(mirror)); |
| 32 | var refs = new MirrorRefCache( |
| 33 | JSON.stringify(serializer.serializeReferencedObjects())); |
| 34 | |
| 35 | // Check the mirror hierachy. |
| 36 | assertTrue(mirror instanceof debug.Mirror); |
| 37 | assertTrue(mirror instanceof debug.ValueMirror); |
| 38 | assertTrue(mirror instanceof debug.ObjectMirror); |
| 39 | assertTrue(mirror instanceof debug.GeneratorMirror); |
| 40 | |
| 41 | // Check the mirror properties. |
| 42 | assertTrue(mirror.isGenerator()); |
| 43 | assertEquals('generator', mirror.type()); |
| 44 | assertFalse(mirror.isPrimitive()); |
| 45 | assertEquals('Generator', mirror.className()); |
| 46 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 47 | assertEquals(receiver, mirror.receiver().value()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 48 | assertEquals(generator, mirror.func().value()); |
| 49 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 50 | assertEquals(status, mirror.status()); |
| 51 | |
| 52 | // Note that line numbers are 0-based, not 1-based. |
| 53 | var loc = mirror.sourceLocation(); |
| 54 | if (status === 'suspended') { |
| 55 | assertTrue(!!loc); |
| 56 | assertEquals(line, loc.line); |
| 57 | assertEquals(column, loc.column); |
| 58 | } else { |
| 59 | assertEquals(undefined, loc); |
| 60 | } |
| 61 | |
| 62 | TestInternalProperties(mirror, status, receiver); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 63 | } |
| 64 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 65 | function TestInternalProperties(mirror, status, receiver) { |
| 66 | var properties = mirror.internalProperties(); |
| 67 | assertEquals(3, properties.length); |
| 68 | assertEquals("[[GeneratorStatus]]", properties[0].name()); |
| 69 | assertEquals(status, properties[0].value().value()); |
| 70 | assertEquals("[[GeneratorFunction]]", properties[1].name()); |
| 71 | assertEquals(generator, properties[1].value().value()); |
| 72 | assertEquals("[[GeneratorReceiver]]", properties[2].name()); |
| 73 | assertEquals(receiver, properties[2].value().value()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 74 | } |
| 75 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 76 | var iter = generator(function() { |
| 77 | var mirror = debug.MakeMirror(iter); |
| 78 | assertEquals('running', mirror.status()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 79 | assertEquals(undefined, mirror.sourceLocation()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 80 | TestInternalProperties(mirror, 'running'); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 81 | }); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 82 | |
| 83 | TestGeneratorMirror(iter, 'suspended', 7, 19); |
| 84 | |
| 85 | iter.next(); |
| 86 | TestGeneratorMirror(iter, 'suspended', 9, 2); |
| 87 | |
| 88 | iter.next(); |
| 89 | TestGeneratorMirror(iter, 'suspended', 11, 2); |
| 90 | |
| 91 | iter.next(); |
| 92 | TestGeneratorMirror(iter, 'closed'); |
| 93 | |
| 94 | // Test generator with receiver. |
| 95 | var obj = {foo: 42}; |
| 96 | var iter2 = generator.call(obj, function() { |
| 97 | var mirror = debug.MakeMirror(iter2); |
| 98 | assertEquals('running', mirror.status()); |
| 99 | assertEquals(undefined, mirror.sourceLocation()); |
| 100 | TestInternalProperties(mirror, 'running', obj); |
| 101 | }); |
| 102 | |
| 103 | TestGeneratorMirror(iter2, 'suspended', 7, 19, obj); |
| 104 | |
| 105 | iter2.next(); |
| 106 | TestGeneratorMirror(iter2, 'suspended', 9, 2, obj); |
| 107 | |
| 108 | iter2.next(); |
| 109 | TestGeneratorMirror(iter2, 'suspended', 11, 2, obj); |
| 110 | |
| 111 | iter2.next(); |
| 112 | TestGeneratorMirror(iter2, 'closed', 0, 0, obj); |