2a5955a4fc
When getting properties for the global object proxy the properties from the global object are returned. Script objects now have handles and are serialized by reference. Added special handling for NaN. Review URL: http://codereview.chromium.org/18445 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1116 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
228 lines
12 KiB
JavaScript
228 lines
12 KiB
JavaScript
// Copyright 2008 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// Flags: --expose-debug-as debug
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// Test the mirror object for objects
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function MirrorRefCache(json_refs) {
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var tmp = eval('(' + json_refs + ')');
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this.refs_ = [];
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for (var i = 0; i < tmp.length; i++) {
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this.refs_[tmp[i].handle] = tmp[i];
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}
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}
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MirrorRefCache.prototype.lookup = function(handle) {
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return this.refs_[handle];
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}
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function testObjectMirror(obj, cls_name, ctor_name, hasSpecialProperties) {
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// Create mirror and JSON representation.
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var mirror = debug.MakeMirror(obj);
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var serializer = debug.MakeMirrorSerializer();
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var json = serializer.serializeValue(mirror);
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var refs = new MirrorRefCache(serializer.serializeReferencedObjects());
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// Check the mirror hierachy.
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assertTrue(mirror instanceof debug.Mirror, 'Unexpected mirror hierachy');
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assertTrue(mirror instanceof debug.ValueMirror, 'Unexpected mirror hierachy');
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assertTrue(mirror instanceof debug.ObjectMirror, 'Unexpected mirror hierachy');
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// Check the mirror properties.
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assertTrue(mirror.isObject(), 'Unexpected mirror');
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assertEquals('object', mirror.type(), 'Unexpected mirror type');
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assertFalse(mirror.isPrimitive(), 'Unexpected primitive mirror');
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assertEquals(cls_name, mirror.className(), 'Unexpected mirror class name');
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assertTrue(mirror.constructorFunction() instanceof debug.ObjectMirror, 'Unexpected mirror hierachy');
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assertEquals(ctor_name, mirror.constructorFunction().name(), 'Unexpected constructor function name');
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assertTrue(mirror.protoObject() instanceof debug.Mirror, 'Unexpected mirror hierachy');
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assertTrue(mirror.prototypeObject() instanceof debug.Mirror, 'Unexpected mirror hierachy');
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assertFalse(mirror.hasNamedInterceptor(), 'No named interceptor expected');
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assertFalse(mirror.hasIndexedInterceptor(), 'No indexed interceptor expected');
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var names = mirror.propertyNames();
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var properties = mirror.properties()
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assertEquals(names.length, properties.length);
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for (var i = 0; i < properties.length; i++) {
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assertTrue(properties[i] instanceof debug.Mirror, 'Unexpected mirror hierachy');
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assertTrue(properties[i] instanceof debug.PropertyMirror, 'Unexpected mirror hierachy');
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assertEquals('property', properties[i].type(), 'Unexpected mirror type');
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assertEquals(names[i], properties[i].name(), 'Unexpected property name');
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}
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for (var p in obj) {
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var property_mirror = mirror.property(p);
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assertTrue(property_mirror instanceof debug.PropertyMirror);
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assertEquals(p, property_mirror.name());
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// If the object has some special properties don't test for these.
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if (!hasSpecialProperties) {
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assertEquals(0, property_mirror.attributes(), property_mirror.name());
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assertFalse(property_mirror.isReadOnly());
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assertTrue(property_mirror.isEnum());
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assertTrue(property_mirror.canDelete());
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}
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}
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// Parse JSON representation and check.
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var fromJSON = eval('(' + json + ')');
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assertEquals('object', fromJSON.type, 'Unexpected mirror type in JSON');
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assertEquals(cls_name, fromJSON.className, 'Unexpected mirror class name in JSON');
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assertEquals(mirror.constructorFunction().handle(), fromJSON.constructorFunction.ref, 'Unexpected constructor function handle in JSON');
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assertEquals('function', refs.lookup(fromJSON.constructorFunction.ref).type, 'Unexpected constructor function type in JSON');
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assertEquals(ctor_name, refs.lookup(fromJSON.constructorFunction.ref).name, 'Unexpected constructor function name in JSON');
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assertEquals(mirror.protoObject().handle(), fromJSON.protoObject.ref, 'Unexpected proto object handle in JSON');
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assertEquals(mirror.protoObject().type(), refs.lookup(fromJSON.protoObject.ref).type, 'Unexpected proto object type in JSON');
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assertEquals(mirror.prototypeObject().handle(), fromJSON.prototypeObject.ref, 'Unexpected prototype object handle in JSON');
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assertEquals(mirror.prototypeObject().type(), refs.lookup(fromJSON.prototypeObject.ref).type, 'Unexpected prototype object type in JSON');
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assertEquals(void 0, fromJSON.namedInterceptor, 'No named interceptor expected in JSON');
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assertEquals(void 0, fromJSON.indexedInterceptor, 'No indexed interceptor expected in JSON');
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// Check that the serialization contains all properties.
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assertEquals(names.length, fromJSON.properties.length, 'Some properties missing in JSON');
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for (var i = 0; i < fromJSON.properties.length; i++) {
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var name = fromJSON.properties[i].name;
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if (!name) name = fromJSON.properties[i].index;
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var found = false;
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for (var j = 0; j < names.length; j++) {
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if (names[j] == name) {
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// Check that serialized handle is correct.
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assertEquals(properties[i].value().handle(), fromJSON.properties[i].ref, 'Unexpected serialized handle');
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// Check that serialized name is correct.
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assertEquals(properties[i].name(), fromJSON.properties[i].name, 'Unexpected serialized name');
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// If property type is normal property type is not serialized.
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if (properties[i].propertyType() != debug.PropertyType.Normal) {
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assertEquals(properties[i].propertyType(), fromJSON.properties[i].propertyType, 'Unexpected serialized property type');
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} else {
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assertTrue(typeof(fromJSON.properties[i].propertyType) === 'undefined', 'Unexpected serialized property type');
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}
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// If there are no attributes attributes are not serialized.
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if (properties[i].attributes() != debug.PropertyAttribute.None) {
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assertEquals(properties[i].attributes(), fromJSON.properties[i].attributes, 'Unexpected serialized attributes');
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} else {
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assertTrue(typeof(fromJSON.properties[i].attributes) === 'undefined', 'Unexpected serialized attributes');
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}
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// Lookup the serialized object from the handle reference.
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var o = refs.lookup(fromJSON.properties[i].ref);
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assertTrue(o != void 0, 'Referenced object is not serialized');
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assertEquals(properties[i].value().type(), o.type, 'Unexpected serialized property type for ' + name);
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if (properties[i].value().isPrimitive()) {
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// Special check for NaN as NaN == NaN is false.
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if (properties[i].value().isNumber() && isNaN(properties[i].value().value())) {
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assertEquals('NaN', o.value, 'Unexpected serialized property value for ' + name);
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} else {
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assertEquals(properties[i].value().value(), o.value, 'Unexpected serialized property value for ' + name);
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}
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} else if (properties[i].value().isFunction()) {
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assertEquals(properties[i].value().source(), o.source, 'Unexpected serialized property value for ' + name);
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}
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found = true;
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}
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}
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assertTrue(found, '"' + name + '" not found (' + json + ')');
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}
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}
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function Point(x,y) {
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this.x_ = x;
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this.y_ = y;
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}
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// Test a number of different objects.
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testObjectMirror({}, 'Object', 'Object');
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testObjectMirror({'a':1,'b':2}, 'Object', 'Object');
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testObjectMirror({'1':void 0,'2':null,'f':function pow(x,y){return Math.pow(x,y);}}, 'Object', 'Object');
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testObjectMirror(new Point(-1.2,2.003), 'Object', 'Point');
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testObjectMirror(this, 'global', '', true); // Global object has special properties
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testObjectMirror(this.__proto__, 'Object', '');
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testObjectMirror([], 'Array', 'Array');
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testObjectMirror([1,2], 'Array', 'Array');
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// Test circular references.
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o = {};
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o.o = o;
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testObjectMirror(o, 'Object', 'Object');
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// Test that non enumerable properties are part of the mirror
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global_mirror = debug.MakeMirror(this);
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assertEquals('property', global_mirror.property("Math").type());
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assertFalse(global_mirror.property("Math").isEnum(), "Math is enumerable" + global_mirror.property("Math").attributes());
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math_mirror = global_mirror.property("Math").value();
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assertEquals('property', math_mirror.property("E").type());
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assertFalse(math_mirror.property("E").isEnum(), "Math.E is enumerable");
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assertTrue(math_mirror.property("E").isReadOnly());
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assertFalse(math_mirror.property("E").canDelete());
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// Test objects with JavaScript accessors.
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o = {}
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o.__defineGetter__('a', function(){return 'a';});
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o.__defineSetter__('b', function(){});
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o.__defineGetter__('c', function(){throw 'c';});
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o.__defineSetter__('c', function(){throw 'c';});
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testObjectMirror(o, 'Object', 'Object');
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mirror = debug.MakeMirror(o);
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// a has getter but no setter.
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assertTrue(mirror.property('a').hasGetter());
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assertFalse(mirror.property('a').hasSetter());
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assertEquals(debug.PropertyType.Callbacks, mirror.property('a').propertyType());
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assertEquals('function', mirror.property('a').getter().type());
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assertEquals('undefined', mirror.property('a').setter().type());
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assertEquals('function (){return \'a\';}', mirror.property('a').getter().source());
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// b has setter but no getter.
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assertFalse(mirror.property('b').hasGetter());
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assertTrue(mirror.property('b').hasSetter());
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assertEquals(debug.PropertyType.Callbacks, mirror.property('b').propertyType());
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assertEquals('undefined', mirror.property('b').getter().type());
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assertEquals('function', mirror.property('b').setter().type());
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assertEquals('function (){}', mirror.property('b').setter().source());
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assertFalse(mirror.property('b').isException());
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// c has both getter and setter. The getter throws an exception.
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assertTrue(mirror.property('c').hasGetter());
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assertTrue(mirror.property('c').hasSetter());
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assertEquals(debug.PropertyType.Callbacks, mirror.property('c').propertyType());
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assertEquals('function', mirror.property('c').getter().type());
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assertEquals('function', mirror.property('c').setter().type());
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assertEquals('function (){throw \'c\';}', mirror.property('c').getter().source());
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assertEquals('function (){throw \'c\';}', mirror.property('c').setter().source());
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// Test objects with native accessors.
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mirror = debug.MakeMirror(new String('abc'));
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assertTrue(mirror instanceof debug.ObjectMirror);
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assertFalse(mirror.property('length').hasGetter());
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assertFalse(mirror.property('length').hasSetter());
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assertTrue(mirror.property('length').isNative());
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assertEquals('a', mirror.property(0).value().value());
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assertEquals('b', mirror.property(1).value().value());
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assertEquals('c', mirror.property(2).value().value());
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