JezK
Edit File: regress-1081309.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 // Get the Debug object exposed from the debug context global object. Debug = debug.Debug // Make sure that the backtrace command can be processed when the receiver is // undefined. listenerCalled = false; exception = false; function ParsedResponse(json) { this.response_ = eval('(' + json + ')'); this.refs_ = []; if (this.response_.refs) { for (var i = 0; i < this.response_.refs.length; i++) { this.refs_[this.response_.refs[i].handle] = this.response_.refs[i]; } } } ParsedResponse.prototype.response = function() { return this.response_; } ParsedResponse.prototype.body = function() { return this.response_.body; } ParsedResponse.prototype.lookup = function(handle) { return this.refs_[handle]; } function listener(event, exec_state, event_data, data) { try { if (event == Debug.DebugEvent.Exception) { // The expected backtrace is // 1: g // 0: [anonymous] // Get the debug command processor. var dcp = exec_state.debugCommandProcessor(false); // Get the backtrace. var json; json = '{"seq":0,"type":"request","command":"backtrace"}' var response = new ParsedResponse(dcp.processDebugJSONRequest(json)); var backtrace = response.body(); assertEquals(2, backtrace.totalFrames); assertEquals(2, backtrace.frames.length); assertEquals("g", response.lookup(backtrace.frames[0].func.ref).name); assertEquals("", response.lookup(backtrace.frames[1].func.ref).name); listenerCalled = true; } } catch (e) { exception = e }; }; // Add the debug event listener. Debug.setListener(listener); // Call method on undefined. function g() { (void 0).f(); }; // Break on the exception to do a backtrace with undefined as receiver. Debug.setBreakOnException(true); try { g(); } catch(e) { // Ignore the exception "Cannot call method 'x' of undefined" } assertFalse(exception, "exception in listener", exception) // Make sure that the debug event listener vas invoked. assertTrue(listenerCalled, "listener not called");