JezK
Edit File: mirror-function.js
// Copyright 2008 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 functions. 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 testFunctionMirror(f) { // Create mirror and JSON representation. var mirror = debug.MakeMirror(f); 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); assertTrue(mirror instanceof debug.ValueMirror); assertTrue(mirror instanceof debug.ObjectMirror); assertTrue(mirror instanceof debug.FunctionMirror); // Check the mirror properties. assertTrue(mirror.isFunction()); assertEquals('function', mirror.type()); assertFalse(mirror.isPrimitive()); assertEquals("Function", mirror.className()); assertEquals(f.name, mirror.name()); assertTrue(mirror.resolved()); assertEquals(f.toString(), mirror.source()); assertTrue(mirror.constructorFunction() instanceof debug.ObjectMirror); assertTrue(mirror.protoObject() instanceof debug.Mirror); assertTrue(mirror.prototypeObject() instanceof debug.Mirror); // Test text representation assertEquals(f.toString(), mirror.toText()); // Parse JSON representation and check. var fromJSON = eval('(' + json + ')'); assertEquals('function', fromJSON.type); assertEquals('Function', fromJSON.className); assertEquals('function', refs.lookup(fromJSON.constructorFunction.ref).type); assertEquals('Function', refs.lookup(fromJSON.constructorFunction.ref).name); assertTrue(fromJSON.resolved); assertEquals(f.name, fromJSON.name); assertEquals(f.toString(), fromJSON.source); // Check the formatted text (regress 1142074). assertEquals(f.toString(), fromJSON.text); } // Test a number of different functions. testFunctionMirror(function(){}); testFunctionMirror(function a(){return 1;}); testFunctionMirror(Math.sin);