Hello,
Recently I was writing an article about strict mode in ES5
(http://bit.ly/928Jwl).
At the moment, the only implementation for testing is already mentioned
here -- BESEN engine. BESEN still has some bugs (some of them I’ve
reported while was writing the article and glad to see that several bugs
are already fixed), but it is a good candidate for ES5 programming and
testing.
Nevertheless, the talk isn't about BESEN, but about inconsistent of the
"Annex C (informative) The Strict Mode of ECMAScript" entry and the test
suite cases related with the strict mode and functions created via the
Function constructor.
That bullet of the Annex C statements:
"It is a SyntaxError to use within strict mode code the identifiers
/eval/ or /arguments/ as the Identifier of a FunctionDeclaration or
FunctionExpression or as a formal parameter name (13.1). Attempting to
/dynamically define such a strict mode function using the Function
constructor/ (15.3.2) will throw a /SyntaxError/ exception."
I've posted a bug to the BESEN's author -- http://bit.ly/bmkN1p
But he referenced to the conformance test suite --
http://es5conform.codeplex.com/ and in particular for these test cases
-- http://vserver.rosseaux.net/stuff/tests/
where is said that "arguments" and "eval" are allowed in such cases:
http://vserver.rosseaux.net/stuff/tests/15.3.2.1-11-7-s.js -- arguments
http://vserver.rosseaux.net/stuff/tests/15.3.2.1-11-4-s.js -- eval
So, is it an err in the Annex C statement or the tests are incorrect? I
don't see the same restriction in the exact 15.3.2 section as it
mentioned in the Annex C.
Dmitry.
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