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b52f96cd91
In our browser we need to support scripts that use as an identifier name future reserved keywords such as interface. The scripts are rather old and perfectly legal under previous revisions of EcmaScript which does not included the list of almost every Java keyword to the future reserve.
To support this I added an option to query Context.hasFeature for FEATURE_RESERVED_KEYWORD_AS_IDENTIFIER:
/**
* if hasFeature(RESERVED_KEYWORD_AS_IDENTIFIER) returns true,
* treat future reserved keyword (see Ecma-262, section 7.5.3) as ordinary
* identifiers but warn about this usage
*/
public static final int FEATURE_RESERVED_KEYWORD_AS_IDENTIFIER = 3;
The corresponding code in TokenStream checks for it and issues just a warning when this feature is enabled.
I also think that it would be better not to return RESERVED as a token from TokenStream.getToken but report the specific syntax error immediately because it is very unclear from the error message:
js> x.interface = 1
js: "<stdin>", line 1: uncaught JavaScript exception: SyntaxError: missing name after . operator (<stdin>; line 1)
js: x.interface = 1
js: ..........^
what exactly went wrong. I can send a patch later for that.
Regards, Igor
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| 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>