This looks like a regression in the spec from ES3 to ES5.
/be
Andreas Rossberg wrote:
On 4 July 2012 16:03, Mathias Bynens <[email protected]
<mailto:[email protected]>> wrote:
http://ecma-international.org/ecma-262/5.1/#sec-10.6 says:
> When control enters an execution context for function code, an
arguments
> object is created unless (as specified in 10.5) the identifier
arguments
> occurs as an Identifier in the function’s FormalParameterList or
occurs as
> the Identifier of a VariableDeclaration or FunctionDeclaration
contained in
> the function code.
The text is wrong. The order of steps in the normative part of the
spec (Section 10.5, esp. step 6) makes clear that variable
declarations are not taken into account (but parameters and function
declarations are).
I suggest filing a bug, if there isn't one already:
https://bugs.ecmascript.org/describecomponents.cgi?product=ECMA-262
/Andreas
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