/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */ /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ /* * Date: 15 Feb 2001 * * SUMMARY: self.eval(str) inside a function * NOTE: 'self' is just a variable used to capture the global JS object. * * See http://bugzilla.mozilla.org/show_bug.cgi?id=68498 * See http://bugzilla.mozilla.org/showattachment.cgi?attach_id=25251 * See http://bugzilla.mozilla.org/show_bug.cgi?id=69441 (!!!) * * Brendan: * * "ECMA-262 Edition 3, 10.1.3 requires a FunctionDeclaration parsed as part * of a Program by eval to create a property of eval's caller's variable object. * This test evals in the body of a with statement, whose scope chain *is* * relevant to the effect of parsing the FunctionDeclaration." */ //----------------------------------------------------------------------------- var BUGNUMBER = 68498; var summary = 'Testing self.eval(str) inside a function'; var statprefix = '; currently at expect['; var statsuffix = '] within test -'; var sToEval=''; var actual=[ ]; var expect=[ ]; // Capture a reference to the global object - var self = this; // You shouldn't see this global variable's value in any printout - var x = 'outer'; // This function is the heart of the test - function f(o,s,x) {with(o) eval(s); return z;}; // Run-time statements to pass to the eval inside f sToEval += 'actual[0] = typeof g;' sToEval += 'function g(){actual[1]=(typeof w == "undefined" || w); return x};' sToEval += 'actual[2] = w;' sToEval += 'actual[3] = typeof g;' sToEval += 'var z=g();' // Set the actual-results array. The next line will set actual[0] - actual[4] in one shot actual[4] = f({w:44}, sToEval, 'inner'); actual[5] = 'z' in self && z; /* Set the expected-results array. * * Sample issue: why do we set expect[4] = 'inner'? Look at actual[4]... * 1. The return value of f equals z, which is not defined at compile-time * 2. At run-time (via with(o) eval(s) inside f), z is defined as the return value of g * 3. At run-time (via with(o) eval(s) inside f), g is defined to return x * 4. In the scope of with(o), x is undefined * 5. Farther up the scope chain, x can be located as an argument of f * 6. The value of this argument at run-time is 'inner' * 7. Even farther up the scope chain, the name x can be found as a global variable * 8. The value of this global variable is 'outer', but we should NOT have gone * this far up the scope chain to find x...therefore we expect 'inner' */ expect[0] = 'function'; expect[1] = 44; expect[2] = 44; expect[3] = 'function'; expect[4] = 'inner'; expect[5] = false; //------------------------------------------------------------------------------------------------ test(); //------------------------------------------------------------------------------------------------- function test() { enterFunc ('test'); printBugNumber(BUGNUMBER); printStatus (summary); for (var i in expect) { reportCompare(expect[i], actual[i], getStatus(i)); } exitFunc ('test'); } function getStatus(i) { return (summary + statprefix + i + statsuffix); }