The draft is available at
http://wiki.ecmascript.org/doku.php?id=harmony:specification_drafts#january_20_2014_draft_rev_22
Big news: Promise and Module Loading/Linking. Still a few loose ends, but
we're getting there.
Changes include:
Promises
Module loading/linking semantics
Internal Tasks
Realm Objects
Loader Objects
updated with binding for unscopable names as discussed at Sept 2013 meeting
An unscopables object is now an ordinary object whose own property keys are the
unscopable names.
Fixed sticky mode bugs in RegExpExec
Provided algorithm for RegExp.prototype.replace and updated other RegExp methods
Fixed RegExp matcher algoritm to normalize results of Unicode mode matches back
to UTF-16
Grammar parameter tweaks related to use of yield in generator parameters.
Simplified eval/arguments restrictions. They never are applied in non-strict
code
Added tail call detection for arrow functions with expression bodies
clarified unicode escaping in IdentifierNames and keywords
The default class constructor definition is now “constructor(...args) {return
super (...args);)” if one is not explicitly provided (adding explicit “return”
is the change)
Fixed Invoke abstract operation to correctly handle invokes on primitive
values. Implementations of built-ins that are * specified using Invoke should
make sure they work correctly in cases where Invoke might be validly applied to
a primitive
Function.prototype.toMethod, replaces RebindSuper abstraction operation with
CloneMethod
Eliminated comparator optional argument to Map and Set constructor
Removed vague overflow/underflow requirements from Math.Hypoth
Creating a Proxy requires use of new.
No line terminator allow before the * in yield *.
extends clause of a class declaration is now a LeftHandSideExpression
Completely redo of object invariants section.
_______________________________________________
es-discuss mailing list
es-discuss@mozilla.org
https://mail.mozilla.org/listinfo/es-discuss
