c2c780bfc4
it is assigned a numeric handle. Handles are used to make a 1:1
correspondence between objects and mirrors. Currently the mirrors are
cached in a JavaScript array and when creating a mirror this cache is
checked to see if a mirror already exists for the object. This cache is
cleared when leaving the debugger.
Changed the serialization format to take advantage of these handles. When
an object is serialized referenced objects are represented just by their
handle id serialized as '{ref:<handle>}'. During serialization the
referenced handles are collected and the serializer can provide a
serialization of all the referenced objects.
Removed the special handling of array properties. Indexed properties and
the length property are now rendered as named properties in the
serialization.
Removed the special serialization handling of RegExp properties. The
properties 'source', 'global', 'ignoreCase' and 'multiline' are serialized
with the rest of the properties.
Changed a lot of tests to handle the changed format.
Review URL: http://codereview.chromium.org/18092
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1093 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
138 lines
6.1 KiB
JavaScript
138 lines
6.1 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 testArrayMirror(a, names) {
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// Create mirror and JSON representation.
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var mirror = debug.MakeMirror(a);
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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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assertTrue(mirror instanceof debug.ArrayMirror, 'Unexpected mirror hierachy');
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// Check the mirror properties.
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assertTrue(mirror.isArray(), '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('Array', mirror.className(), 'Unexpected mirror class name');
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assertTrue(mirror.constructorFunction() instanceof debug.ObjectMirror, 'Unexpected mirror hierachy');
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assertEquals('Array', 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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assertEquals(mirror.length(), a.length, "Length mismatch");
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var indexedProperties = mirror.indexedPropertiesFromRange();
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assertEquals(indexedProperties.length, a.length);
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for (var i = 0; i < indexedProperties.length; i++) {
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assertTrue(indexedProperties[i] instanceof debug.Mirror, 'Unexpected mirror hierachy');
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assertTrue(indexedProperties[i] instanceof debug.PropertyMirror, 'Unexpected mirror hierachy');
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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('Array', 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('Array', refs.lookup(fromJSON.constructorFunction.ref).name, 'Unexpected constructor function name 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 indexed properties and the length property.
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var length_found = false;
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for (var i = 0; i < fromJSON.properties.length; i++) {
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if (fromJSON.properties[i].name == 'length') {
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length_found = true;
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assertEquals('number', refs.lookup(fromJSON.properties[i].ref).type, "Unexpected type of the length property");
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assertEquals(a.length, refs.lookup(fromJSON.properties[i].ref).value, "Length mismatch in parsed JSON");
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} else {
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var index = parseInt(fromJSON.properties[i].name);
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print(index);
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if (!isNaN(index)) {
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print(index);
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// This test assumes that the order of the indexeed properties is in the
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// same order in the serialization as returned from
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// indexedPropertiesFromRange()
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assertEquals(indexedProperties[index].name(), index);
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assertEquals(indexedProperties[index].value().type(), refs.lookup(fromJSON.properties[i].ref).type, 'Unexpected serialized type');
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}
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}
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}
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assertTrue(length_found, 'Property length not found');
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// Check that the serialization contains all names properties.
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if (names) {
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for (var i = 0; i < names.length; i++) {
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var found = false;
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for (var j = 0; j < fromJSON.properties.length; j++) {
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if (names[i] == fromJSON.properties[j].name) {
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found = true;
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}
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}
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assertTrue(found, names[i])
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}
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}
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}
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// Test a number of different arrays.
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testArrayMirror([]);
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testArrayMirror([1]);
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testArrayMirror([1,2]);
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testArrayMirror(["a", function(){}, [1,2], 2, /[ab]/]);
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a=[1];
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a[100]=7;
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testArrayMirror(a);
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a=[1,2,3];
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a.x=2.2;
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a.y=function(){return null;}
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testArrayMirror(a, ['x','y']);
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var a = []; a.push(a);
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testArrayMirror(a);
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