Status: New
Owner: ----
New issue 3045 by [email protected]: Support non-writable,
configurable "length" and "name" function properties per ES6
http://code.google.com/p/v8/issues/detail?id=3045
As brought up during
https://codereview.chromium.org/99203006/
ES6 Function objects will move to having a pair of non-writable, but
configurable properties:
* "length",
https://people.mozilla.org/~jorendorff/es6-draft.html#sec-functioninitialise
* "name",
https://people.mozilla.org/~jorendorff/es6-draft.html#sec-setfunctionname
The restricted properties "arguments" and "caller" are kept as
non-configurable (ditto "prototype".)
The change wrt ES5 is to make "length" be configurable, along with "name"
(and actually specify the required behavior of this de-facto property.)
When implementing/switching to having the two properties be non-writable &
configurable, see
https://codereview.chromium.org/99203006/#msg7
for issue that was experienced upon redefinition of "name", e.g.,
Object.defineProperty(func, "name", {value: "other"});
was seen as a no-op. Property had to first/also be made writable to allow
this.
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