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131 lines
4.7 KiB
JavaScript
131 lines
4.7 KiB
JavaScript
/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* brendan@mozilla.org, pschwartau@netscape.com
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK *****
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*
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* Date: 15 Feb 2001
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*
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* SUMMARY: self.eval(str) inside a function
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* NOTE: 'self' is just a variable used to capture the global JS object.
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*
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* See http://bugzilla.mozilla.org/show_bug.cgi?id=68498
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* See http://bugzilla.mozilla.org/showattachment.cgi?attach_id=25251
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* See http://bugzilla.mozilla.org/show_bug.cgi?id=69441 (!!!)
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*
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* Brendan:
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*
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* "ECMA-262 Edition 3, 10.1.3 requires a FunctionDeclaration parsed as part
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* of a Program by eval to create a property of eval's caller's variable object.
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* This test evals in the body of a with statement, whose scope chain *is*
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* relevant to the effect of parsing the FunctionDeclaration."
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*/
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//-------------------------------------------------------------------------------------------------
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var bug = 68498;
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var summary = 'Testing self.eval(str) inside a function';
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var statprefix = '; currently at expect[';
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var statsuffix = '] within test -';
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var sToEval='';
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var actual=[ ];
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var expect=[ ];
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// Capture a reference to the global object -
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var self = this;
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// You shouldn't see this global variable's value in any printout -
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var x = 'outer';
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// This function is the heart of the test -
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function f(o,s,x) {with(o) eval(s); return z;};
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// Run-time statements to pass to the eval inside f
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sToEval += 'actual[0] = typeof g;'
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sToEval += 'function g(){actual[1]=(typeof w == "undefined" || w); return x};'
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sToEval += 'actual[2] = w;'
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sToEval += 'actual[3] = typeof g;'
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sToEval += 'var z=g();'
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// Set the actual-results array. The next line will set actual[0] - actual[4] in one shot
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actual[4] = f({w:44}, sToEval, 'inner');
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actual[5] = 'z' in self && z;
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/* Set the expected-results array.
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*
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* Sample issue: why do we set expect[4] = 'inner'? Look at actual[4]...
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* 1. The return value of f equals z, which is not defined at compile-time
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* 2. At run-time (via with(o) eval(s) inside f), z is defined as the return value of g
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* 3. At run-time (via with(o) eval(s) inside f), g is defined to return x
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* 4. In the scope of with(o), x is undefined
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* 5. Farther up the scope chain, x can be located as an argument of f
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* 6. The value of this argument at run-time is 'inner'
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* 7. Even farther up the scope chain, the name x can be found as a global variable
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* 8. The value of this global variable is 'outer', but we should NOT have gone
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* this far up the scope chain to find x...therefore we expect 'inner'
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*/
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expect[0] = 'function';
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expect[1] = 44;
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expect[2] = 44;
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expect[3] = 'function';
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expect[4] = 'inner';
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expect[5] = false;
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//------------------------------------------------------------------------------------------------
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test();
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//-------------------------------------------------------------------------------------------------
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function test()
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{
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enterFunc ('test');
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printBugNumber (bug);
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printStatus (summary);
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for (var i in expect)
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{
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reportCompare(expect[i], actual[i], getStatus(i));
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}
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exitFunc ('test');
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}
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function getStatus(i)
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{
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return (summary + statprefix + i + statsuffix);
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}
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