зеркало из https://github.com/mozilla/pjs.git
8026a2bd2f
given the following object :
----------------------------------------------
function SomeObject() {}
SomeObject.prototype.exec = function() {
var local = this.someField;
}
----------------------------------------------
i create an 'instance', set a field and call the exec method :
----------------------------------------------
var someField = "global field value";
var anInstance = new SomeObject();
anInstance.someField = "instance field value";
anInstance.exec();
----------------------------------------------
then the local variable 'local' in the exec() method is assigned the value
of the global 'someField' variable instead of the instance field value.
the problem seems to be in the ScriptRuntime.callOrNewSpecial() method,
which is called, because the parser treats the name 'exec' specially. in
this method the exec() method gets called with
return call(cx, fun, thisArg, args, scope);
where the 'thisArg' parameter really is the global this value instead of
the dynamic this value, which is in the jsThis variable and which would be
the one needed...
is it legitimate to replace the above call in callOrNewSpecial() with the
following line :
return call(cx, fun, jsThis, args, scope);
this seems to only happen for methods named 'exec', which are identified as
special in the NodeTransformer.isSpecialCallName() method.
any help is appreciated. thank you very much for your time.
kind regards,
felix
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| docs | ||
| examples | ||
| macbuild | ||
| src | ||
| toolsrc | ||
| README.html | ||
| apiClasses.properties | ||
| build-date | ||
| build.xml | ||
README.html
<html> <!-- - The contents of this file are subject to the Netscape Public - License Version 1.1 (the "License"); you may not use this file - except in compliance with the License. You may obtain a copy of - the License at http://www.mozilla.org/NPL/ - - Software distributed under the License is distributed on an "AS - IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or - implied. See the License for the specific language governing - rights and limitations under the License. - - The Original Code is Rhino code, released - May 6, 1999. - - The Initial Developer of the Original Code is Netscape - Communications Corporation. Portions created by Netscape are - Copyright (C) 1998-1999 Netscape Communications Corporation. All - Rights Reserved. - - Contributor(s): - Norris Boyd - - Alternatively, the contents of this file may be used under the - terms of the GNU Public License (the "GPL"), in which case the - provisions of the GPL are applicable instead of those above. - If you wish to allow use of your version of this file only - under the terms of the GPL and not to allow others to use your - version of this file under the NPL, indicate your decision by - deleting the provisions above and replace them with the notice - and other provisions required by the GPL. If you do not delete - the provisions above, a recipient may use your version of this - file under either the NPL or the GPL. --> <body> <h1> <span CLASS=LXRSHORTDESC> Rhino: JavaScript in Java<p> </span> </h1> <span CLASS=LXRLONGDESC> Rhino is an implementation of JavaScript in Java. Documentation can be found <a href="http://www.mozilla.org/js/rhino/rhino.html">here</a>. </span> </body> </html>