1// Copyright 2008 the V8 project authors. All rights reserved. 2// Redistribution and use in source and binary forms, with or without 3// modification, are permitted provided that the following conditions are 4// met: 5// 6// * Redistributions of source code must retain the above copyright 7// notice, this list of conditions and the following disclaimer. 8// * Redistributions in binary form must reproduce the above 9// copyright notice, this list of conditions and the following 10// disclaimer in the documentation and/or other materials provided 11// with the distribution. 12// * Neither the name of Google Inc. nor the names of its 13// contributors may be used to endorse or promote products derived 14// from this software without specific prior written permission. 15// 16// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 28function argc0() { 29 return arguments.length; 30} 31 32function argc1(i) { 33 return arguments.length; 34} 35 36function argc2(i, j) { 37 return arguments.length; 38} 39 40assertEquals(0, argc0()); 41assertEquals(1, argc0(1)); 42assertEquals(2, argc0(1, 2)); 43assertEquals(3, argc0(1, 2, 3)); 44assertEquals(0, argc1()); 45assertEquals(1, argc1(1)); 46assertEquals(2, argc1(1, 2)); 47assertEquals(3, argc1(1, 2, 3)); 48assertEquals(0, argc2()); 49assertEquals(1, argc2(1)); 50assertEquals(2, argc2(1, 2)); 51assertEquals(3, argc2(1, 2, 3)); 52 53 54 55var index; 56 57function argv0() { 58 return arguments[index]; 59} 60 61function argv1(i) { 62 return arguments[index]; 63} 64 65function argv2(i, j) { 66 return arguments[index]; 67} 68 69index = 0; 70assertEquals(7, argv0(7)); 71assertEquals(7, argv0(7, 8)); 72assertEquals(7, argv0(7, 8, 9)); 73assertEquals(7, argv1(7)); 74assertEquals(7, argv1(7, 8)); 75assertEquals(7, argv1(7, 8, 9)); 76assertEquals(7, argv2(7)); 77assertEquals(7, argv2(7, 8)); 78assertEquals(7, argv2(7, 8, 9)); 79 80index = 1; 81assertEquals(8, argv0(7, 8)); 82assertEquals(8, argv0(7, 8)); 83assertEquals(8, argv1(7, 8, 9)); 84assertEquals(8, argv1(7, 8, 9)); 85assertEquals(8, argv2(7, 8, 9)); 86assertEquals(8, argv2(7, 8, 9)); 87 88index = 2; 89assertEquals(9, argv0(7, 8, 9)); 90assertEquals(9, argv1(7, 8, 9)); 91assertEquals(9, argv2(7, 8, 9)); 92 93 94// Test that calling a lazily compiled function with 95// an unexpected number of arguments works. 96function f(a) { return arguments.length; }; 97assertEquals(3, f(1, 2, 3)); 98