Dictionaries that we never initialize with JS values don't need a full-featured
Init() method. Instead, we output a cut-down Init() method that doesn't even
take a JSContext and Value as argument, and skips as much work as it can. It
uses constant-false for "is the value present?", but also, to avoid compilation
errors due to use of `cx` and `val` in now-dead conversion code, it tells the
native-to-JS conversion machinery that the value is always missing, which lets
it skip most of the the work it would normally try to do and just output
initialization to the default value. We only need to do this for members that
have default values; the others either remain no-passed or are required members
with no default-initialization behavior.
This saves about 330KB of codesize on Linux64 without PGO and 285KB with PGO.
Differential Revision: https://phabricator.services.mozilla.com/D48007
--HG--
extra : moz-landing-system : lando
Add IDLInterfaceMixin with a new superclass shared with existing IDLInterfaceOrNamespace.
Differential Revision: https://phabricator.services.mozilla.com/D38802
--HG--
extra : moz-landing-system : lando
2019-08-15 16:53:49 +00:00
Till Schneidereit ext:(%2C%20Jason%20Orendorff%20%3Cjorendorff%40mozilla.com%3E)
Streams have multiple parts that can be JS objects from different compartments.
For example, the [[reader]] internal slot of a stream can point to a reader
object in another compartment.
This patch makes the ReadableStream implementation robust against mixing and
matching stream-related objects and methods from different globals.
This also removes ReadableStreamBYOBReader and ReadableStreamBYOBRequest for
now, with a view toward enabling basic ReadableStream features by default in
bug 1389628.
Differential Revision: https://phabricator.services.mozilla.com/D8450
--HG--
extra : rebase_source : 71d73bed5bc82557efcb6b1ecb231275fd3e1189
extra : amend_source : de29f663b9929eb2858b23cc6f4e7ba97b23a28c
extra : source : f91eb962df6a06d5f51ad13caa2a4a9c2947f293
This patch was generated by my modeline.py script.
MozReview-Commit-ID: EbVjPLwiUAT
Depends on D4159
Differential Revision: https://phabricator.services.mozilla.com/D4161
--HG--
extra : moz-landing-system : lando
Boris Zbarsky
Kagami Sascha Rosylight
Till Schneidereit ext:(%2C%20Jason%20Orendorff%20%3Cjorendorff%40mozilla.com%3E)
Cosmin Sabou
Andrew McCreight
Andrea Marchesini
Nikhil Marathe
Wes Kocher