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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
31function 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
39MirrorRefCache.prototype.lookup = function(handle) {
40  return this.refs_[handle];
41};
42
43function 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, 'Unexpected mirror hierarchy');
62  assertEquals(ctor_name, mirror.constructorFunction().name(), 'Unexpected constructor function name');
63  assertTrue(mirror.protoObject() instanceof debug.Mirror, 'Unexpected mirror hierarchy');
64  assertTrue(mirror.prototypeObject() instanceof debug.Mirror, 'Unexpected mirror 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 hierarchy');
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, 'Unexpected mirror hierarchy');
82    assertEquals('internalProperty', internalProperties[i].type(), 'Unexpected mirror 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 JSON');
102  assertEquals(mirror.constructorFunction().handle(), fromJSON.constructorFunction.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, 'Unexpected constructor function name in JSON');
105  assertEquals(mirror.protoObject().handle(), fromJSON.protoObject.ref, 'Unexpected 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.prototypeObject.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 expected in JSON');
111
112  // Check that the serialization contains all properties.
113  assertEquals(names.length, fromJSON.properties.length, 'Some properties missing 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, 'Unexpected serialized name');
127
128        // If property type is normal property type is not serialized.
129        if (properties[i].propertyType() != debug.PropertyType.Normal) {
130          assertEquals(properties[i].propertyType(), fromJSON.properties[i].propertyType, 'Unexpected serialized property type');
131        } else {
132          assertTrue(typeof(fromJSON.properties[i].propertyType) === 'undefined', 'Unexpected serialized property type');
133        }
134
135        // If there are no attributes attributes are not serialized.
136        if (properties[i].attributes() != debug.PropertyAttribute.None) {
137          assertEquals(properties[i].attributes(), fromJSON.properties[i].attributes, 'Unexpected serialized attributes');
138        } else {
139          assertTrue(typeof(fromJSON.properties[i].attributes) === 'undefined', 'Unexpected serialized attributes');
140        }
141
142        // Lookup the serialized object from the handle reference.
143        var o = refs.lookup(fromJSON.properties[i].ref);
144        assertTrue(o != void 0, 'Referenced object is not serialized');
145
146        assertEquals(properties[i].value().type(), o.type, 'Unexpected serialized property type for ' + name);
147        if (properties[i].value().isPrimitive()) {
148          if (properties[i].value().type() == "null" ||
149              properties[i].value().type() == "undefined") {
150            // Null and undefined has no value property.
151            assertFalse("value" in o, 'Unexpected value property for ' + name);
152          } else if (properties[i].value().type() == "number" &&
153                     !isFinite(properties[i].value().value())) {
154            assertEquals(String(properties[i].value().value()), o.value,
155                         'Unexpected serialized property value for ' + name);
156          } else {
157            assertEquals(properties[i].value().value(), o.value, 'Unexpected serialized property value for ' + name);
158          }
159        } else if (properties[i].value().isFunction()) {
160          assertEquals(properties[i].value().source(), o.source, 'Unexpected serialized property value for ' + name);
161        }
162        found = true;
163      }
164    }
165    assertTrue(found, '"' + name + '" not found (' + json + ')');
166  }
167}
168
169
170function Point(x,y) {
171  this.x_ = x;
172  this.y_ = y;
173}
174
175var object_with_symbol = {};
176object_with_symbol[Symbol.iterator] = 42;
177
178// Test a number of different objects.
179testObjectMirror({}, 'Object', 'Object');
180testObjectMirror({'a':1,'b':2}, 'Object', 'Object');
181testObjectMirror({'1':void 0,'2':null,'f':function pow(x,y){return Math.pow(x,y);}}, 'Object', 'Object');
182testObjectMirror(new Point(-1.2,2.003), 'Object', 'Point');
183testObjectMirror(this, 'global', '', true);  // Global object has special properties
184testObjectMirror(this.__proto__, 'Object', '');
185testObjectMirror([], 'Array', 'Array');
186testObjectMirror([1,2], 'Array', 'Array');
187testObjectMirror(Object(17), 'Number', 'Number');
188testObjectMirror(object_with_symbol, 'Object', 'Object');
189
190// Test circular references.
191o = {};
192o.o = o;
193testObjectMirror(o, 'Object', 'Object');
194
195// Test that non enumerable properties are part of the mirror
196global_mirror = debug.MakeMirror(this);
197assertEquals('property', global_mirror.property("Math").type());
198assertFalse(global_mirror.property("Math").isEnum(), "Math is enumerable" + global_mirror.property("Math").attributes());
199
200math_mirror = global_mirror.property("Math").value();
201assertEquals('property', math_mirror.property("E").type());
202assertFalse(math_mirror.property("E").isEnum(), "Math.E is enumerable");
203assertTrue(math_mirror.property("E").isReadOnly());
204assertFalse(math_mirror.property("E").canDelete());
205
206// Test objects with JavaScript accessors.
207o = {}
208o.__defineGetter__('a', function(){return 'a';});
209o.__defineSetter__('b', function(){});
210o.__defineGetter__('c', function(){throw 'c';});
211o.__defineSetter__('c', function(){throw 'c';});
212testObjectMirror(o, 'Object', 'Object');
213mirror = debug.MakeMirror(o);
214// a has getter but no setter.
215assertTrue(mirror.property('a').hasGetter());
216assertFalse(mirror.property('a').hasSetter());
217assertEquals(debug.PropertyType.Callbacks, mirror.property('a').propertyType());
218assertEquals('function', mirror.property('a').getter().type());
219assertEquals('undefined', mirror.property('a').setter().type());
220assertEquals('function (){return \'a\';}', mirror.property('a').getter().source());
221// b has setter but no getter.
222assertFalse(mirror.property('b').hasGetter());
223assertTrue(mirror.property('b').hasSetter());
224assertEquals(debug.PropertyType.Callbacks, mirror.property('b').propertyType());
225assertEquals('undefined', mirror.property('b').getter().type());
226assertEquals('function', mirror.property('b').setter().type());
227assertEquals('function (){}', mirror.property('b').setter().source());
228assertFalse(mirror.property('b').isException());
229// c has both getter and setter. The getter throws an exception.
230assertTrue(mirror.property('c').hasGetter());
231assertTrue(mirror.property('c').hasSetter());
232assertEquals(debug.PropertyType.Callbacks, mirror.property('c').propertyType());
233assertEquals('function', mirror.property('c').getter().type());
234assertEquals('function', mirror.property('c').setter().type());
235assertEquals('function (){throw \'c\';}', mirror.property('c').getter().source());
236assertEquals('function (){throw \'c\';}', mirror.property('c').setter().source());
237
238// Test objects with native accessors.
239mirror = debug.MakeMirror(new String('abc'));
240assertTrue(mirror instanceof debug.ObjectMirror);
241assertFalse(mirror.property('length').hasGetter());
242assertFalse(mirror.property('length').hasSetter());
243assertTrue(mirror.property('length').isNative());
244assertEquals('a', mirror.property(0).value().value());
245assertEquals('b', mirror.property(1).value().value());
246assertEquals('c', mirror.property(2).value().value());
247
248// Test value wrapper internal properties.
249mirror = debug.MakeMirror(Object("Capybara"));
250var ip = mirror.internalProperties();
251assertEquals(1, ip.length);
252assertEquals("[[PrimitiveValue]]", ip[0].name());
253assertEquals("string", ip[0].value().type());
254assertEquals("Capybara", ip[0].value().value());
255
256// Test bound function internal properties.
257mirror = debug.MakeMirror(Number.bind(Array, 2));
258ip = mirror.internalProperties();
259assertEquals(3, ip.length);
260var property_map = {};
261for (var i = 0; i < ip.length; i++) {
262  property_map[ip[i].name()] = ip[i];
263}
264assertTrue("[[BoundThis]]" in property_map);
265assertEquals("function", property_map["[[BoundThis]]"].value().type());
266assertEquals(Array, property_map["[[BoundThis]]"].value().value());
267assertTrue("[[TargetFunction]]" in property_map);
268assertEquals("function", property_map["[[TargetFunction]]"].value().type());
269assertEquals(Number, property_map["[[TargetFunction]]"].value().value());
270assertTrue("[[BoundArgs]]" in property_map);
271assertEquals("object", property_map["[[BoundArgs]]"].value().type());
272assertEquals(1, property_map["[[BoundArgs]]"].value().value().length);
273