Allows to skip function environment allocation for non-arrow functions
if the only reason it is needed is to hold `this` binding.
The parser is changed to do following:
- If a function is an arrow function and uses `this` then all functions
in a scope chain are marked to allocate function environment for
`this` binding.
- If a function uses `new.target` then all functions in a scope chain
are marked to allocate function environment.
`ordinary_call_bind_this()` is changed to put `this` value in execution
context when function environment allocation is skipped.
35% improvement in Octane/typescript.js
50% improvement in Octane/deltablue.js
19% improvement in Octane/raytrace.js
This change adds the `width` and `height` properties to
`HTMLVideoElement` and `HTMLSourceElement`. These properties reflect
their respective content attribute values.
ReadLoopReadRequest::on_chunk expects an UInt8Array, so make sure we
convert the passed in ByteBuffer to an UInt8Array before passing it to
the AO writable_stream_default_writer_write.
Co-authored-by: Timothy Flynn <trflynn89@pm.me>
This callback is meant to be triggered by streams, which does not always
provide a WebIDL::DOMException. Pass a plain value instead. Of all the
users of this callback, only one actually uses the value, and already
converts the DOMException to a plain value.
This returns the secondary target of a mouse event. For `onmouseenter`
and `onmouseover` events, this is the EventTarget the mouse exited
from. For `onmouseleave` and `onmouseout` events, this is the
EventTarget the mouse entered to.
I saw that this not being implemented was causing a javascript exception
to be thrown when loading https://profiler.firefox.com/.
I was hoping that like the last time that partially implementing this
interface would allow the page to load further, but it seems that this
is unfortunately not the case this time!
However, this may help other pages load slightly further, and puts some
of the scaffolding in place for a proper implementation :^)
For now, this slot is always 0 - (the default value per spec). But
once we start actually processing audio streams this internal slot
should be changed correspondingly.
This will help us in detecting potential web compatability issues from
not having this implemented.
While we're at it, update the spec link, as it was moved from the DOM
parsing spec to the HTML one, and implement this function in a manner
that closr resembles spec text.
Previously, when looking for the labeled control of a label element, we
were only checking its child elements. The specification says we should
check all elements in the same tree as the label element.
