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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 i = 0; i < fromJSON.properties.length; i++) {
115    var name = fromJSON.properties[i].name;
116    if (typeof name == 'undefined') name = fromJSON.properties[i].index;
117    var found = false;
118    for (var j = 0; j < names.length; j++) {
119      if (names[j] == name) {
120        // Check that serialized handle is correct.
121        assertEquals(properties[i].value().handle(), fromJSON.properties[i].ref, 'Unexpected serialized handle');
122
123        // Check that serialized name is correct.
124        assertEquals(properties[i].name(), fromJSON.properties[i].name, 'Unexpected serialized name');
125
126        // If property type is normal property type is not serialized.
127        if (properties[i].propertyType() != debug.PropertyType.Normal) {
128          assertEquals(properties[i].propertyType(), fromJSON.properties[i].propertyType, 'Unexpected serialized property type');
129        } else {
130          assertTrue(typeof(fromJSON.properties[i].propertyType) === 'undefined', 'Unexpected serialized property type');
131        }
132
133        // If there are no attributes attributes are not serialized.
134        if (properties[i].attributes() != debug.PropertyAttribute.None) {
135          assertEquals(properties[i].attributes(), fromJSON.properties[i].attributes, 'Unexpected serialized attributes');
136        } else {
137          assertTrue(typeof(fromJSON.properties[i].attributes) === 'undefined', 'Unexpected serialized attributes');
138        }
139
140        // Lookup the serialized object from the handle reference.
141        var o = refs.lookup(fromJSON.properties[i].ref);
142        assertTrue(o != void 0, 'Referenced object is not serialized');
143
144        assertEquals(properties[i].value().type(), o.type, 'Unexpected serialized property type for ' + name);
145        if (properties[i].value().isPrimitive()) {
146          if (properties[i].value().type() == "null" ||
147              properties[i].value().type() == "undefined") {
148            // Null and undefined has no value property.
149            assertFalse("value" in o, 'Unexpected value property for ' + name);
150          } else if (properties[i].value().type() == "number" &&
151                     !isFinite(properties[i].value().value())) {
152            assertEquals(String(properties[i].value().value()), o.value,
153                         'Unexpected serialized property value for ' + name);
154          } else {
155            assertEquals(properties[i].value().value(), o.value, 'Unexpected serialized property value for ' + name);
156          }
157        } else if (properties[i].value().isFunction()) {
158          assertEquals(properties[i].value().source(), o.source, 'Unexpected serialized property value for ' + name);
159        }
160        found = true;
161      }
162    }
163    assertTrue(found, '"' + name + '" not found (' + json + ')');
164  }
165}
166
167
168function Point(x,y) {
169  this.x_ = x;
170  this.y_ = y;
171}
172
173// Test a number of different objects.
174testObjectMirror({}, 'Object', 'Object');
175testObjectMirror({'a':1,'b':2}, 'Object', 'Object');
176testObjectMirror({'1':void 0,'2':null,'f':function pow(x,y){return Math.pow(x,y);}}, 'Object', 'Object');
177testObjectMirror(new Point(-1.2,2.003), 'Object', 'Point');
178testObjectMirror(this, 'global', '', true);  // Global object has special properties
179testObjectMirror(this.__proto__, 'Object', '');
180testObjectMirror([], 'Array', 'Array');
181testObjectMirror([1,2], 'Array', 'Array');
182testObjectMirror(Object(17), 'Number', 'Number');
183
184// Test circular references.
185o = {};
186o.o = o;
187testObjectMirror(o, 'Object', 'Object');
188
189// Test that non enumerable properties are part of the mirror
190global_mirror = debug.MakeMirror(this);
191assertEquals('property', global_mirror.property("Math").type());
192assertFalse(global_mirror.property("Math").isEnum(), "Math is enumerable" + global_mirror.property("Math").attributes());
193
194math_mirror = global_mirror.property("Math").value();
195assertEquals('property', math_mirror.property("E").type());
196assertFalse(math_mirror.property("E").isEnum(), "Math.E is enumerable");
197assertTrue(math_mirror.property("E").isReadOnly());
198assertFalse(math_mirror.property("E").canDelete());
199
200// Test objects with JavaScript accessors.
201o = {}
202o.__defineGetter__('a', function(){return 'a';});
203o.__defineSetter__('b', function(){});
204o.__defineGetter__('c', function(){throw 'c';});
205o.__defineSetter__('c', function(){throw 'c';});
206testObjectMirror(o, 'Object', 'Object');
207mirror = debug.MakeMirror(o);
208// a has getter but no setter.
209assertTrue(mirror.property('a').hasGetter());
210assertFalse(mirror.property('a').hasSetter());
211assertEquals(debug.PropertyType.Callbacks, mirror.property('a').propertyType());
212assertEquals('function', mirror.property('a').getter().type());
213assertEquals('undefined', mirror.property('a').setter().type());
214assertEquals('function (){return \'a\';}', mirror.property('a').getter().source());
215// b has setter but no getter.
216assertFalse(mirror.property('b').hasGetter());
217assertTrue(mirror.property('b').hasSetter());
218assertEquals(debug.PropertyType.Callbacks, mirror.property('b').propertyType());
219assertEquals('undefined', mirror.property('b').getter().type());
220assertEquals('function', mirror.property('b').setter().type());
221assertEquals('function (){}', mirror.property('b').setter().source());
222assertFalse(mirror.property('b').isException());
223// c has both getter and setter. The getter throws an exception.
224assertTrue(mirror.property('c').hasGetter());
225assertTrue(mirror.property('c').hasSetter());
226assertEquals(debug.PropertyType.Callbacks, mirror.property('c').propertyType());
227assertEquals('function', mirror.property('c').getter().type());
228assertEquals('function', mirror.property('c').setter().type());
229assertEquals('function (){throw \'c\';}', mirror.property('c').getter().source());
230assertEquals('function (){throw \'c\';}', mirror.property('c').setter().source());
231
232// Test objects with native accessors.
233mirror = debug.MakeMirror(new String('abc'));
234assertTrue(mirror instanceof debug.ObjectMirror);
235assertFalse(mirror.property('length').hasGetter());
236assertFalse(mirror.property('length').hasSetter());
237assertTrue(mirror.property('length').isNative());
238assertEquals('a', mirror.property(0).value().value());
239assertEquals('b', mirror.property(1).value().value());
240assertEquals('c', mirror.property(2).value().value());
241
242// Test value wrapper internal properties.
243mirror = debug.MakeMirror(Object("Capybara"));
244var ip = mirror.internalProperties();
245assertEquals(1, ip.length);
246assertEquals("[[PrimitiveValue]]", ip[0].name());
247assertEquals("string", ip[0].value().type());
248assertEquals("Capybara", ip[0].value().value());
249
250// Test bound function internal properties.
251mirror = debug.MakeMirror(Number.bind(Array, 2));
252ip = mirror.internalProperties();
253assertEquals(3, ip.length);
254var property_map = {};
255for (var i = 0; i < ip.length; i++) {
256  property_map[ip[i].name()] = ip[i];
257}
258assertTrue("[[BoundThis]]" in property_map);
259assertEquals("function", property_map["[[BoundThis]]"].value().type());
260assertEquals(Array, property_map["[[BoundThis]]"].value().value());
261assertTrue("[[TargetFunction]]" in property_map);
262assertEquals("function", property_map["[[TargetFunction]]"].value().type());
263assertEquals(Number, property_map["[[TargetFunction]]"].value().value());
264assertTrue("[[BoundArgs]]" in property_map);
265assertEquals("object", property_map["[[BoundArgs]]"].value().type());
266assertEquals(1, property_map["[[BoundArgs]]"].value().value().length);
267