1// Copyright 2010 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 28// Simple tests of the various kinds of variable references in the 29// implementstion. 30 31// Global variables. 32var x = 0; 33function f0() { return x; } 34assertEquals(0, f0()); 35 36 37// Parameters. 38function f1(x) { return x; } 39assertEquals(1, f1(1)); 40 41 42// Stack-allocated locals. 43function f2() { var x = 2; return x; } 44assertEquals(2, f2()); 45 46 47// Context-allocated locals. Local function forces x into f3's context. 48function f3(x) { 49 function g() { return x; } 50 return x; 51} 52assertEquals(3, f3(3)); 53 54// Local function reads x from an outer context. 55function f4(x) { 56 function g() { return x; } 57 return g(); 58} 59assertEquals(4, f4(4)); 60 61 62// Lookup slots. 'With' forces x to be looked up at runtime. 63function f5(x) { 64 with ({}) return x; 65} 66assertEquals(5, f5(5)); 67 68 69// Parameters rewritten to property accesses. Using the name 'arguments' 70// (even if it shadows the arguments object) forces all parameters to be 71// rewritten to explicit property accesses. 72function f6(arguments) { return arguments; } 73assertEquals(6, f6(6)); 74