Index: test/mjsunit/mirror-object.js |
diff --git a/test/mjsunit/mirror-object.js b/test/mjsunit/mirror-object.js |
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-// Copyright 2012 the V8 project authors. All rights reserved. |
-// Redistribution and use in source and binary forms, with or without |
-// modification, are permitted provided that the following conditions are |
-// met: |
-// |
-// * Redistributions of source code must retain the above copyright |
-// notice, this list of conditions and the following disclaimer. |
-// * Redistributions in binary form must reproduce the above |
-// copyright notice, this list of conditions and the following |
-// disclaimer in the documentation and/or other materials provided |
-// with the distribution. |
-// * Neither the name of Google Inc. nor the names of its |
-// contributors may be used to endorse or promote products derived |
-// from this software without specific prior written permission. |
-// |
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
- |
-// Flags: --expose-debug-as debug |
-// Test the mirror object for objects |
- |
-function MirrorRefCache(json_refs) { |
- var tmp = eval('(' + json_refs + ')'); |
- this.refs_ = []; |
- for (var i = 0; i < tmp.length; i++) { |
- this.refs_[tmp[i].handle] = tmp[i]; |
- } |
-} |
- |
-MirrorRefCache.prototype.lookup = function(handle) { |
- return this.refs_[handle]; |
-}; |
- |
-function testObjectMirror(obj, cls_name, ctor_name, hasSpecialProperties) { |
- // Create mirror and JSON representation. |
- var mirror = debug.MakeMirror(obj); |
- var serializer = debug.MakeMirrorSerializer(); |
- var json = JSON.stringify(serializer.serializeValue(mirror)); |
- var refs = new MirrorRefCache( |
- JSON.stringify(serializer.serializeReferencedObjects())); |
- |
- // Check the mirror hierachy. |
- assertTrue(mirror instanceof debug.Mirror, 'Unexpected mirror hierarchy'); |
- assertTrue(mirror instanceof debug.ValueMirror, 'Unexpected mirror hierarchy'); |
- assertTrue(mirror instanceof debug.ObjectMirror, 'Unexpected mirror hierarchy'); |
- |
- // Check the mirror properties. |
- assertTrue(mirror.isObject(), 'Unexpected mirror'); |
- assertEquals('object', mirror.type(), 'Unexpected mirror type'); |
- assertFalse(mirror.isPrimitive(), 'Unexpected primitive mirror'); |
- assertEquals(cls_name, mirror.className(), 'Unexpected mirror class name'); |
- assertTrue(mirror.constructorFunction() instanceof debug.ObjectMirror, 'Unexpected mirror hierarchy'); |
- assertEquals(ctor_name, mirror.constructorFunction().name(), 'Unexpected constructor function name'); |
- assertTrue(mirror.protoObject() instanceof debug.Mirror, 'Unexpected mirror hierarchy'); |
- assertTrue(mirror.prototypeObject() instanceof debug.Mirror, 'Unexpected mirror hierarchy'); |
- assertFalse(mirror.hasNamedInterceptor(), 'No named interceptor expected'); |
- assertFalse(mirror.hasIndexedInterceptor(), 'No indexed interceptor expected'); |
- |
- var names = mirror.propertyNames(); |
- var properties = mirror.properties(); |
- assertEquals(names.length, properties.length); |
- for (var i = 0; i < properties.length; i++) { |
- assertTrue(properties[i] instanceof debug.Mirror, 'Unexpected mirror hierarchy'); |
- assertTrue(properties[i] instanceof debug.PropertyMirror, 'Unexpected mirror hierarchy'); |
- assertEquals('property', properties[i].type(), 'Unexpected mirror type'); |
- assertEquals(names[i], properties[i].name(), 'Unexpected property name'); |
- } |
- |
- var internalProperties = mirror.internalProperties(); |
- for (var i = 0; i < internalProperties.length; i++) { |
- assertTrue(internalProperties[i] instanceof debug.Mirror, 'Unexpected mirror hierarchy'); |
- assertTrue(internalProperties[i] instanceof debug.InternalPropertyMirror, 'Unexpected mirror hierarchy'); |
- assertEquals('internalProperty', internalProperties[i].type(), 'Unexpected mirror type'); |
- } |
- |
- for (var p in obj) { |
- var property_mirror = mirror.property(p); |
- assertTrue(property_mirror instanceof debug.PropertyMirror); |
- assertEquals(p, property_mirror.name()); |
- // If the object has some special properties don't test for these. |
- if (!hasSpecialProperties) { |
- assertEquals(0, property_mirror.attributes(), property_mirror.name()); |
- assertFalse(property_mirror.isReadOnly()); |
- assertTrue(property_mirror.isEnum()); |
- assertTrue(property_mirror.canDelete()); |
- } |
- } |
- |
- // Parse JSON representation and check. |
- var fromJSON = eval('(' + json + ')'); |
- assertEquals('object', fromJSON.type, 'Unexpected mirror type in JSON'); |
- assertEquals(cls_name, fromJSON.className, 'Unexpected mirror class name in JSON'); |
- assertEquals(mirror.constructorFunction().handle(), fromJSON.constructorFunction.ref, 'Unexpected constructor function handle in JSON'); |
- assertEquals('function', refs.lookup(fromJSON.constructorFunction.ref).type, 'Unexpected constructor function type in JSON'); |
- assertEquals(ctor_name, refs.lookup(fromJSON.constructorFunction.ref).name, 'Unexpected constructor function name in JSON'); |
- assertEquals(mirror.protoObject().handle(), fromJSON.protoObject.ref, 'Unexpected proto object handle in JSON'); |
- assertEquals(mirror.protoObject().type(), refs.lookup(fromJSON.protoObject.ref).type, 'Unexpected proto object type in JSON'); |
- assertEquals(mirror.prototypeObject().handle(), fromJSON.prototypeObject.ref, 'Unexpected prototype object handle in JSON'); |
- assertEquals(mirror.prototypeObject().type(), refs.lookup(fromJSON.prototypeObject.ref).type, 'Unexpected prototype object type in JSON'); |
- assertEquals(void 0, fromJSON.namedInterceptor, 'No named interceptor expected in JSON'); |
- assertEquals(void 0, fromJSON.indexedInterceptor, 'No indexed interceptor expected in JSON'); |
- |
- // Check that the serialization contains all properties. |
- assertEquals(names.length, fromJSON.properties.length, 'Some properties missing in JSON'); |
- for (var j = 0; j < names.length; j++) { |
- var name = names[j]; |
- // Serialization of symbol-named properties to JSON doesn't really |
- // work currently, as they don't get a {name: ...} entry. |
- if (typeof name === 'symbol') continue; |
- var found = false; |
- for (var i = 0; i < fromJSON.properties.length; i++) { |
- if (fromJSON.properties[i].name == name) { |
- // Check that serialized handle is correct. |
- assertEquals(properties[i].value().handle(), fromJSON.properties[i].ref, 'Unexpected serialized handle'); |
- |
- // Check that serialized name is correct. |
- assertEquals(properties[i].name(), fromJSON.properties[i].name, 'Unexpected serialized name'); |
- |
- assertEquals(properties[i].propertyType(), fromJSON.properties[i].propertyType, 'Unexpected serialized property type'); |
- |
- // If there are no attributes attributes are not serialized. |
- if (properties[i].attributes() != debug.PropertyAttribute.None) { |
- assertEquals(properties[i].attributes(), fromJSON.properties[i].attributes, 'Unexpected serialized attributes'); |
- } else { |
- assertTrue(typeof(fromJSON.properties[i].attributes) === 'undefined', 'Unexpected serialized attributes'); |
- } |
- |
- // Lookup the serialized object from the handle reference. |
- var o = refs.lookup(fromJSON.properties[i].ref); |
- assertTrue(o != void 0, 'Referenced object is not serialized'); |
- |
- assertEquals(properties[i].value().type(), o.type, 'Unexpected serialized property type for ' + name); |
- if (properties[i].value().isPrimitive()) { |
- if (properties[i].value().type() == "null" || |
- properties[i].value().type() == "undefined") { |
- // Null and undefined has no value property. |
- assertFalse("value" in o, 'Unexpected value property for ' + name); |
- } else if (properties[i].value().type() == "number" && |
- !isFinite(properties[i].value().value())) { |
- assertEquals(String(properties[i].value().value()), o.value, |
- 'Unexpected serialized property value for ' + name); |
- } else { |
- assertEquals(properties[i].value().value(), o.value, 'Unexpected serialized property value for ' + name); |
- } |
- } else if (properties[i].value().isFunction()) { |
- assertEquals(properties[i].value().source(), o.source, 'Unexpected serialized property value for ' + name); |
- } |
- found = true; |
- } |
- } |
- assertTrue(found, '"' + name + '" not found (' + json + ')'); |
- } |
-} |
- |
- |
-function Point(x,y) { |
- this.x_ = x; |
- this.y_ = y; |
-} |
- |
-var object_with_symbol = {}; |
-object_with_symbol[Symbol.iterator] = 42; |
- |
-// Test a number of different objects. |
-testObjectMirror({}, 'Object', 'Object'); |
-testObjectMirror({'a':1,'b':2}, 'Object', 'Object'); |
-testObjectMirror({'1':void 0,'2':null,'f':function pow(x,y){return Math.pow(x,y);}}, 'Object', 'Object'); |
-testObjectMirror(new Point(-1.2,2.003), 'Object', 'Point'); |
-testObjectMirror(this, 'global', '', true); // Global object has special properties |
-testObjectMirror(this.__proto__, 'Object', ''); |
-testObjectMirror([], 'Array', 'Array'); |
-testObjectMirror([1,2], 'Array', 'Array'); |
-testObjectMirror(Object(17), 'Number', 'Number'); |
-testObjectMirror(object_with_symbol, 'Object', 'Object'); |
- |
-// Test circular references. |
-o = {}; |
-o.o = o; |
-testObjectMirror(o, 'Object', 'Object'); |
- |
-// Test that non enumerable properties are part of the mirror |
-global_mirror = debug.MakeMirror(this); |
-assertEquals('property', global_mirror.property("Math").type()); |
-assertFalse(global_mirror.property("Math").isEnum(), "Math is enumerable" + global_mirror.property("Math").attributes()); |
- |
-math_mirror = global_mirror.property("Math").value(); |
-assertEquals('property', math_mirror.property("E").type()); |
-assertFalse(math_mirror.property("E").isEnum(), "Math.E is enumerable"); |
-assertTrue(math_mirror.property("E").isReadOnly()); |
-assertFalse(math_mirror.property("E").canDelete()); |
- |
-// Test objects with JavaScript accessors. |
-o = {} |
-o.__defineGetter__('a', function (){return 'a';}); |
-o.__defineSetter__('b', function (){}); |
-o.__defineGetter__('c', function (){throw 'c';}); |
-o.__defineSetter__('c', function (){throw 'c';}); |
-testObjectMirror(o, 'Object', 'Object'); |
-mirror = debug.MakeMirror(o); |
-// a has getter but no setter. |
-assertTrue(mirror.property('a').hasGetter()); |
-assertFalse(mirror.property('a').hasSetter()); |
-assertEquals(debug.PropertyType.AccessorConstant, mirror.property('a').propertyType()); |
-assertEquals('function', mirror.property('a').getter().type()); |
-assertEquals('undefined', mirror.property('a').setter().type()); |
-assertEquals('function (){return \'a\';}', mirror.property('a').getter().source()); |
-// b has setter but no getter. |
-assertFalse(mirror.property('b').hasGetter()); |
-assertTrue(mirror.property('b').hasSetter()); |
-assertEquals(debug.PropertyType.AccessorConstant, mirror.property('b').propertyType()); |
-assertEquals('undefined', mirror.property('b').getter().type()); |
-assertEquals('function', mirror.property('b').setter().type()); |
-assertEquals('function (){}', mirror.property('b').setter().source()); |
-assertFalse(mirror.property('b').isException()); |
-// c has both getter and setter. The getter throws an exception. |
-assertTrue(mirror.property('c').hasGetter()); |
-assertTrue(mirror.property('c').hasSetter()); |
-assertEquals(debug.PropertyType.AccessorConstant, mirror.property('c').propertyType()); |
-assertEquals('function', mirror.property('c').getter().type()); |
-assertEquals('function', mirror.property('c').setter().type()); |
-assertEquals('function (){throw \'c\';}', mirror.property('c').getter().source()); |
-assertEquals('function (){throw \'c\';}', mirror.property('c').setter().source()); |
- |
-// Test objects with native accessors. |
-mirror = debug.MakeMirror(new String('abc')); |
-assertTrue(mirror instanceof debug.ObjectMirror); |
-assertFalse(mirror.property('length').hasGetter()); |
-assertFalse(mirror.property('length').hasSetter()); |
-assertTrue(mirror.property('length').isNative()); |
-assertEquals('a', mirror.property(0).value().value()); |
-assertEquals('b', mirror.property(1).value().value()); |
-assertEquals('c', mirror.property(2).value().value()); |
- |
-// Test value wrapper internal properties. |
-mirror = debug.MakeMirror(Object("Capybara")); |
-var ip = mirror.internalProperties(); |
-assertEquals(1, ip.length); |
-assertEquals("[[PrimitiveValue]]", ip[0].name()); |
-assertEquals("string", ip[0].value().type()); |
-assertEquals("Capybara", ip[0].value().value()); |
- |
-// Test bound function internal properties. |
-mirror = debug.MakeMirror(Number.bind(Array, 2)); |
-ip = mirror.internalProperties(); |
-assertEquals(3, ip.length); |
-var property_map = {}; |
-for (var i = 0; i < ip.length; i++) { |
- property_map[ip[i].name()] = ip[i]; |
-} |
-assertTrue("[[BoundThis]]" in property_map); |
-assertEquals("function", property_map["[[BoundThis]]"].value().type()); |
-assertEquals(Array, property_map["[[BoundThis]]"].value().value()); |
-assertTrue("[[TargetFunction]]" in property_map); |
-assertEquals("function", property_map["[[TargetFunction]]"].value().type()); |
-assertEquals(Number, property_map["[[TargetFunction]]"].value().value()); |
-assertTrue("[[BoundArgs]]" in property_map); |
-assertEquals("object", property_map["[[BoundArgs]]"].value().type()); |
-assertEquals(1, property_map["[[BoundArgs]]"].value().value().length); |
- |
-// Test JSProxy internal properties. |
-var target = {}; |
-var handler = { |
- get: function (target, name, receiver) { |
- return target[name]; |
- }, |
- set: function(target, name, value, receiver) { |
- target[name] = value; |
- return value; |
- } |
-} |
-ip = debug.ObjectMirror.GetInternalProperties(new Proxy(target, handler)); |
-assertEquals(3, ip.length); |
-var property_map = {}; |
-for (var i = 0; i < ip.length; i++) { |
- property_map[ip[i].name()] = ip[i]; |
-} |
-assertTrue("[[Target]]" in property_map); |
-assertEquals(target, property_map["[[Target]]"].value().value()); |
-assertTrue("[[Handler]]" in property_map); |
-assertEquals(handler, property_map["[[Handler]]"].value().value()); |
-assertTrue("[[IsRevoked]]" in property_map); |
-assertEquals(false, property_map["[[IsRevoked]]"].value().value()); |