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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 // Test the mirror object for objects | |
30 | |
31 function MirrorRefCache(json_refs) { | |
32 var tmp = eval('(' + json_refs + ')'); | |
33 this.refs_ = []; | |
34 for (var i = 0; i < tmp.length; i++) { | |
35 this.refs_[tmp[i].handle] = tmp[i]; | |
36 } | |
37 } | |
38 | |
39 MirrorRefCache.prototype.lookup = function(handle) { | |
40 return this.refs_[handle]; | |
41 }; | |
42 | |
43 function testObjectMirror(obj, cls_name, ctor_name, hasSpecialProperties) { | |
44 // Create mirror and JSON representation. | |
45 var mirror = debug.MakeMirror(obj); | |
46 var serializer = debug.MakeMirrorSerializer(); | |
47 var json = JSON.stringify(serializer.serializeValue(mirror)); | |
48 var refs = new MirrorRefCache( | |
49 JSON.stringify(serializer.serializeReferencedObjects())); | |
50 | |
51 // Check the mirror hierachy. | |
52 assertTrue(mirror instanceof debug.Mirror, 'Unexpected mirror hierarchy'); | |
53 assertTrue(mirror instanceof debug.ValueMirror, 'Unexpected mirror hierarchy')
; | |
54 assertTrue(mirror instanceof debug.ObjectMirror, 'Unexpected mirror hierarchy'
); | |
55 | |
56 // Check the mirror properties. | |
57 assertTrue(mirror.isObject(), 'Unexpected mirror'); | |
58 assertEquals('object', mirror.type(), 'Unexpected mirror type'); | |
59 assertFalse(mirror.isPrimitive(), 'Unexpected primitive mirror'); | |
60 assertEquals(cls_name, mirror.className(), 'Unexpected mirror class name'); | |
61 assertTrue(mirror.constructorFunction() instanceof debug.ObjectMirror, 'Unexpe
cted mirror hierarchy'); | |
62 assertEquals(ctor_name, mirror.constructorFunction().name(), 'Unexpected const
ructor function name'); | |
63 assertTrue(mirror.protoObject() instanceof debug.Mirror, 'Unexpected mirror hi
erarchy'); | |
64 assertTrue(mirror.prototypeObject() instanceof debug.Mirror, 'Unexpected mirro
r hierarchy'); | |
65 assertFalse(mirror.hasNamedInterceptor(), 'No named interceptor expected'); | |
66 assertFalse(mirror.hasIndexedInterceptor(), 'No indexed interceptor expected')
; | |
67 | |
68 var names = mirror.propertyNames(); | |
69 var properties = mirror.properties(); | |
70 assertEquals(names.length, properties.length); | |
71 for (var i = 0; i < properties.length; i++) { | |
72 assertTrue(properties[i] instanceof debug.Mirror, 'Unexpected mirror hierarc
hy'); | |
73 assertTrue(properties[i] instanceof debug.PropertyMirror, 'Unexpected mirror
hierarchy'); | |
74 assertEquals('property', properties[i].type(), 'Unexpected mirror type'); | |
75 assertEquals(names[i], properties[i].name(), 'Unexpected property name'); | |
76 } | |
77 | |
78 var internalProperties = mirror.internalProperties(); | |
79 for (var i = 0; i < internalProperties.length; i++) { | |
80 assertTrue(internalProperties[i] instanceof debug.Mirror, 'Unexpected mirror
hierarchy'); | |
81 assertTrue(internalProperties[i] instanceof debug.InternalPropertyMirror, 'U
nexpected mirror hierarchy'); | |
82 assertEquals('internalProperty', internalProperties[i].type(), 'Unexpected m
irror type'); | |
83 } | |
84 | |
85 for (var p in obj) { | |
86 var property_mirror = mirror.property(p); | |
87 assertTrue(property_mirror instanceof debug.PropertyMirror); | |
88 assertEquals(p, property_mirror.name()); | |
89 // If the object has some special properties don't test for these. | |
90 if (!hasSpecialProperties) { | |
91 assertEquals(0, property_mirror.attributes(), property_mirror.name()); | |
92 assertFalse(property_mirror.isReadOnly()); | |
93 assertTrue(property_mirror.isEnum()); | |
94 assertTrue(property_mirror.canDelete()); | |
95 } | |
96 } | |
97 | |
98 // Parse JSON representation and check. | |
99 var fromJSON = eval('(' + json + ')'); | |
100 assertEquals('object', fromJSON.type, 'Unexpected mirror type in JSON'); | |
101 assertEquals(cls_name, fromJSON.className, 'Unexpected mirror class name in JS
ON'); | |
102 assertEquals(mirror.constructorFunction().handle(), fromJSON.constructorFuncti
on.ref, 'Unexpected constructor function handle in JSON'); | |
103 assertEquals('function', refs.lookup(fromJSON.constructorFunction.ref).type, '
Unexpected constructor function type in JSON'); | |
104 assertEquals(ctor_name, refs.lookup(fromJSON.constructorFunction.ref).name, 'U
nexpected constructor function name in JSON'); | |
105 assertEquals(mirror.protoObject().handle(), fromJSON.protoObject.ref, 'Unexpec
ted proto object handle in JSON'); | |
106 assertEquals(mirror.protoObject().type(), refs.lookup(fromJSON.protoObject.ref
).type, 'Unexpected proto object type in JSON'); | |
107 assertEquals(mirror.prototypeObject().handle(), fromJSON.prototypeObject.ref,
'Unexpected prototype object handle in JSON'); | |
108 assertEquals(mirror.prototypeObject().type(), refs.lookup(fromJSON.prototypeOb
ject.ref).type, 'Unexpected prototype object type in JSON'); | |
109 assertEquals(void 0, fromJSON.namedInterceptor, 'No named interceptor expected
in JSON'); | |
110 assertEquals(void 0, fromJSON.indexedInterceptor, 'No indexed interceptor expe
cted in JSON'); | |
111 | |
112 // Check that the serialization contains all properties. | |
113 assertEquals(names.length, fromJSON.properties.length, 'Some properties missin
g in JSON'); | |
114 for (var j = 0; j < names.length; j++) { | |
115 var name = names[j]; | |
116 // Serialization of symbol-named properties to JSON doesn't really | |
117 // work currently, as they don't get a {name: ...} entry. | |
118 if (typeof name === 'symbol') continue; | |
119 var found = false; | |
120 for (var i = 0; i < fromJSON.properties.length; i++) { | |
121 if (fromJSON.properties[i].name == name) { | |
122 // Check that serialized handle is correct. | |
123 assertEquals(properties[i].value().handle(), fromJSON.properties[i].ref,
'Unexpected serialized handle'); | |
124 | |
125 // Check that serialized name is correct. | |
126 assertEquals(properties[i].name(), fromJSON.properties[i].name, 'Unexpec
ted serialized name'); | |
127 | |
128 assertEquals(properties[i].propertyType(), fromJSON.properties[i].proper
tyType, 'Unexpected serialized property type'); | |
129 | |
130 // If there are no attributes attributes are not serialized. | |
131 if (properties[i].attributes() != debug.PropertyAttribute.None) { | |
132 assertEquals(properties[i].attributes(), fromJSON.properties[i].attrib
utes, 'Unexpected serialized attributes'); | |
133 } else { | |
134 assertTrue(typeof(fromJSON.properties[i].attributes) === 'undefined',
'Unexpected serialized attributes'); | |
135 } | |
136 | |
137 // Lookup the serialized object from the handle reference. | |
138 var o = refs.lookup(fromJSON.properties[i].ref); | |
139 assertTrue(o != void 0, 'Referenced object is not serialized'); | |
140 | |
141 assertEquals(properties[i].value().type(), o.type, 'Unexpected serialize
d property type for ' + name); | |
142 if (properties[i].value().isPrimitive()) { | |
143 if (properties[i].value().type() == "null" || | |
144 properties[i].value().type() == "undefined") { | |
145 // Null and undefined has no value property. | |
146 assertFalse("value" in o, 'Unexpected value property for ' + name); | |
147 } else if (properties[i].value().type() == "number" && | |
148 !isFinite(properties[i].value().value())) { | |
149 assertEquals(String(properties[i].value().value()), o.value, | |
150 'Unexpected serialized property value for ' + name); | |
151 } else { | |
152 assertEquals(properties[i].value().value(), o.value, 'Unexpected ser
ialized property value for ' + name); | |
153 } | |
154 } else if (properties[i].value().isFunction()) { | |
155 assertEquals(properties[i].value().source(), o.source, 'Unexpected ser
ialized property value for ' + name); | |
156 } | |
157 found = true; | |
158 } | |
159 } | |
160 assertTrue(found, '"' + name + '" not found (' + json + ')'); | |
161 } | |
162 } | |
163 | |
164 | |
165 function Point(x,y) { | |
166 this.x_ = x; | |
167 this.y_ = y; | |
168 } | |
169 | |
170 var object_with_symbol = {}; | |
171 object_with_symbol[Symbol.iterator] = 42; | |
172 | |
173 // Test a number of different objects. | |
174 testObjectMirror({}, 'Object', 'Object'); | |
175 testObjectMirror({'a':1,'b':2}, 'Object', 'Object'); | |
176 testObjectMirror({'1':void 0,'2':null,'f':function pow(x,y){return Math.pow(x,y)
;}}, 'Object', 'Object'); | |
177 testObjectMirror(new Point(-1.2,2.003), 'Object', 'Point'); | |
178 testObjectMirror(this, 'global', '', true); // Global object has special proper
ties | |
179 testObjectMirror(this.__proto__, 'Object', ''); | |
180 testObjectMirror([], 'Array', 'Array'); | |
181 testObjectMirror([1,2], 'Array', 'Array'); | |
182 testObjectMirror(Object(17), 'Number', 'Number'); | |
183 testObjectMirror(object_with_symbol, 'Object', 'Object'); | |
184 | |
185 // Test circular references. | |
186 o = {}; | |
187 o.o = o; | |
188 testObjectMirror(o, 'Object', 'Object'); | |
189 | |
190 // Test that non enumerable properties are part of the mirror | |
191 global_mirror = debug.MakeMirror(this); | |
192 assertEquals('property', global_mirror.property("Math").type()); | |
193 assertFalse(global_mirror.property("Math").isEnum(), "Math is enumerable" + glob
al_mirror.property("Math").attributes()); | |
194 | |
195 math_mirror = global_mirror.property("Math").value(); | |
196 assertEquals('property', math_mirror.property("E").type()); | |
197 assertFalse(math_mirror.property("E").isEnum(), "Math.E is enumerable"); | |
198 assertTrue(math_mirror.property("E").isReadOnly()); | |
199 assertFalse(math_mirror.property("E").canDelete()); | |
200 | |
201 // Test objects with JavaScript accessors. | |
202 o = {} | |
203 o.__defineGetter__('a', function (){return 'a';}); | |
204 o.__defineSetter__('b', function (){}); | |
205 o.__defineGetter__('c', function (){throw 'c';}); | |
206 o.__defineSetter__('c', function (){throw 'c';}); | |
207 testObjectMirror(o, 'Object', 'Object'); | |
208 mirror = debug.MakeMirror(o); | |
209 // a has getter but no setter. | |
210 assertTrue(mirror.property('a').hasGetter()); | |
211 assertFalse(mirror.property('a').hasSetter()); | |
212 assertEquals(debug.PropertyType.AccessorConstant, mirror.property('a').propertyT
ype()); | |
213 assertEquals('function', mirror.property('a').getter().type()); | |
214 assertEquals('undefined', mirror.property('a').setter().type()); | |
215 assertEquals('function (){return \'a\';}', mirror.property('a').getter().source(
)); | |
216 // b has setter but no getter. | |
217 assertFalse(mirror.property('b').hasGetter()); | |
218 assertTrue(mirror.property('b').hasSetter()); | |
219 assertEquals(debug.PropertyType.AccessorConstant, mirror.property('b').propertyT
ype()); | |
220 assertEquals('undefined', mirror.property('b').getter().type()); | |
221 assertEquals('function', mirror.property('b').setter().type()); | |
222 assertEquals('function (){}', mirror.property('b').setter().source()); | |
223 assertFalse(mirror.property('b').isException()); | |
224 // c has both getter and setter. The getter throws an exception. | |
225 assertTrue(mirror.property('c').hasGetter()); | |
226 assertTrue(mirror.property('c').hasSetter()); | |
227 assertEquals(debug.PropertyType.AccessorConstant, mirror.property('c').propertyT
ype()); | |
228 assertEquals('function', mirror.property('c').getter().type()); | |
229 assertEquals('function', mirror.property('c').setter().type()); | |
230 assertEquals('function (){throw \'c\';}', mirror.property('c').getter().source()
); | |
231 assertEquals('function (){throw \'c\';}', mirror.property('c').setter().source()
); | |
232 | |
233 // Test objects with native accessors. | |
234 mirror = debug.MakeMirror(new String('abc')); | |
235 assertTrue(mirror instanceof debug.ObjectMirror); | |
236 assertFalse(mirror.property('length').hasGetter()); | |
237 assertFalse(mirror.property('length').hasSetter()); | |
238 assertTrue(mirror.property('length').isNative()); | |
239 assertEquals('a', mirror.property(0).value().value()); | |
240 assertEquals('b', mirror.property(1).value().value()); | |
241 assertEquals('c', mirror.property(2).value().value()); | |
242 | |
243 // Test value wrapper internal properties. | |
244 mirror = debug.MakeMirror(Object("Capybara")); | |
245 var ip = mirror.internalProperties(); | |
246 assertEquals(1, ip.length); | |
247 assertEquals("[[PrimitiveValue]]", ip[0].name()); | |
248 assertEquals("string", ip[0].value().type()); | |
249 assertEquals("Capybara", ip[0].value().value()); | |
250 | |
251 // Test bound function internal properties. | |
252 mirror = debug.MakeMirror(Number.bind(Array, 2)); | |
253 ip = mirror.internalProperties(); | |
254 assertEquals(3, ip.length); | |
255 var property_map = {}; | |
256 for (var i = 0; i < ip.length; i++) { | |
257 property_map[ip[i].name()] = ip[i]; | |
258 } | |
259 assertTrue("[[BoundThis]]" in property_map); | |
260 assertEquals("function", property_map["[[BoundThis]]"].value().type()); | |
261 assertEquals(Array, property_map["[[BoundThis]]"].value().value()); | |
262 assertTrue("[[TargetFunction]]" in property_map); | |
263 assertEquals("function", property_map["[[TargetFunction]]"].value().type()); | |
264 assertEquals(Number, property_map["[[TargetFunction]]"].value().value()); | |
265 assertTrue("[[BoundArgs]]" in property_map); | |
266 assertEquals("object", property_map["[[BoundArgs]]"].value().type()); | |
267 assertEquals(1, property_map["[[BoundArgs]]"].value().value().length); | |
268 | |
269 // Test JSProxy internal properties. | |
270 var target = {}; | |
271 var handler = { | |
272 get: function (target, name, receiver) { | |
273 return target[name]; | |
274 }, | |
275 set: function(target, name, value, receiver) { | |
276 target[name] = value; | |
277 return value; | |
278 } | |
279 } | |
280 ip = debug.ObjectMirror.GetInternalProperties(new Proxy(target, handler)); | |
281 assertEquals(3, ip.length); | |
282 var property_map = {}; | |
283 for (var i = 0; i < ip.length; i++) { | |
284 property_map[ip[i].name()] = ip[i]; | |
285 } | |
286 assertTrue("[[Target]]" in property_map); | |
287 assertEquals(target, property_map["[[Target]]"].value().value()); | |
288 assertTrue("[[Handler]]" in property_map); | |
289 assertEquals(handler, property_map["[[Handler]]"].value().value()); | |
290 assertTrue("[[IsRevoked]]" in property_map); | |
291 assertEquals(false, property_map["[[IsRevoked]]"].value().value()); | |
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