domenic at domenicdenicola.com (2014-01-27T15:54:12.193Z)
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.
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. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.mozilla.org/pipermail/es-discuss/attachments/20140120/bc42d2f4/attachment.html>