// Copyright 2013 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: --noanalyze-environment-liveness Debug = debug.Debug var error = null; var array = ["a", "b", "c"]; var result = null; function listener(event, exec_state, event_data, data) { try { if (event == Debug.DebugEvent.Break) { result = exec_state.frame(0).evaluate('arguments').value(); } } catch (e) { error = e; } }; Debug.setListener(listener); function f(a, b) { arguments; debugger; // Arguments object is already materialized. } result = null; f.apply(this, array); assertArrayEquals(array, result); result = null; f("a", "b", "c"); assertArrayEquals(array, result); assertNull(error); function g(a, b) { debugger; // Arguments object is not yet materialized. } result = null; g.apply(this, array); assertArrayEquals(array, result); result = null; g("a", "b", "c"); assertArrayEquals(array, result); assertNull(error); function h(a, b) { var arguments = undefined; debugger; // Arguments already used as local variable. } result = null; h.apply(this, array); assertEquals(undefined, result); result = null; h("a", "b", "c"); assertEquals(undefined, result); assertNull(error);