This fixes issue #3630
A short summary of the changes:
* Use generation id to cancel inflight requests
* Handles nested calls to abort, open, send inside handlers
* Adds XHRReleaseMsg to delay freeing XHR object till all
inflight events are processed
* Change the ErroredMsg enum to be more symmetric with the returned
Error enum
During debugging, I found it useful to hook all task creation in a
central location, and util::task was the perfect place for it.
r? @pcwalton (or maybe someone else, I'm kinda sending you a bunch of
reviews today because I don't know who better to give them to)
This fixes#3248.
r? @jdm. Please review for mistakes mercilessly! Also, I got a host of test failures when running the worker tests, not sure if these tests are expected to pass locally or not.
I converted them all with a few exceptions:
- Methods that were used by trait objects, since trait objects don't
work with `self` methods.
- Methods that take an &'b JSRef<'a, T> and return an &'b. In reality,
many (all?) could return an &'a instead, but this isn't allowed by the
Deref trait.
- Methods that internally rely on the same issue with Deref.
- I left out the traits involved in layout entirely, even though not all
of their methods suffer from one of the above problems.
There will probably be solutions to all of these problems in the future.
Replace &JSRef with JSRef in the bulk of the generated code. This will
remove a level of indirection throughout all DOM code.
This patch doesn't change methods implemented on JSRef<T> to take `self`
rather than `&self`, and it leaves a few other uses of &JSRef, but those
changes can be made incrementally.
