1a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org// Copyright 2010 the V8 project authors. All rights reserved. 2a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org// Redistribution and use in source and binary forms, with or without 3a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org// modification, are permitted provided that the following conditions are 4a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org// met: 5a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org// 6a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org// * Redistributions of source code must retain the above copyright 7a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org// notice, this list of conditions and the following disclaimer. 8a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org// * Redistributions in binary form must reproduce the above 9a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org// copyright notice, this list of conditions and the following 10a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org// disclaimer in the documentation and/or other materials provided 11a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org// with the distribution. 12a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org// * Neither the name of Google Inc. nor the names of its 13a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org// contributors may be used to endorse or promote products derived 14a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org// from this software without specific prior written permission. 15a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org// 16a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org 28a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org// Simple tests of the various kinds of variable references in the 29a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org// implementstion. 30a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org 31a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org// Global variables. 32a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.orgvar x = 0; 33a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.orgfunction f0() { return x; } 34a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.orgassertEquals(0, f0()); 35a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org 36a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org 37a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org// Parameters. 38a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.orgfunction f1(x) { return x; } 39a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.orgassertEquals(1, f1(1)); 40a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org 41a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org 42a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org// Stack-allocated locals. 43a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.orgfunction f2() { var x = 2; return x; } 44a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.orgassertEquals(2, f2()); 45a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org 46a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org 47a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org// Context-allocated locals. Local function forces x into f3's context. 48a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.orgfunction f3(x) { 49a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org function g() { return x; } 50a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org return x; 51a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org} 52a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.orgassertEquals(3, f3(3)); 53a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org 54a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org// Local function reads x from an outer context. 55a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.orgfunction f4(x) { 56a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org function g() { return x; } 57a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org return g(); 58a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org} 59a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.orgassertEquals(4, f4(4)); 60a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org 61a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org 62a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org// Lookup slots. 'With' forces x to be looked up at runtime. 63a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.orgfunction f5(x) { 64a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org with ({}) return x; 65a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org} 66a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.orgassertEquals(5, f5(5)); 67a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org 68a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org 69a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org// Parameters rewritten to property accesses. Using the name 'arguments' 70a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org// (even if it shadows the arguments object) forces all parameters to be 71a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.org// rewritten to explicit property accesses. 72a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.orgfunction f6(arguments) { return arguments; } 73a55512615f5adc085d23bc8589d155c4b579fb7bkasperl@chromium.orgassertEquals(6, f6(6)); 74