Make Fetch Protocol Asynchronous
I'm working on making it possible to run Fetch Asynchronously, as required for some steps, such as Main Fetch. It looks like somebody has already laid some groundwork for that, with a AsyncFetchListener trait and two async fetch functions defined, which I'm building on top of.
So far, as a sort of proof of concept, I've written a test to asynchronously retrieve a fetch response, which uses a simple function to check if the fetch response is complete or not. I'd like to be checked if I'm on the right path, to see if I need to rework anything so far, and what my next step can be.
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Validate MIME pattern checking
The MIME detector for a HTML file contains an additional byte in the mask. While it doesn't hurt, it is not used in the byte matching code (since it is zipped with the `pattern` iterator).
I'm not clear how to test this within the `servo` code. The fix doesn't change any externally visible behavior. A test to validate the `ByteMatcher` structures would require the private ByteMatcher structures to be visible to the test. I could use a sub-module, as described at https://doc.rust-lang.org/book/testing.html#the-tests-module but this pattern doesn't appear anywhere else in the `servo` code.
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This adds a size to the test webp file, since the error fixed occurs
when the test object is the same length as the matched pattern, and
is not equal to the pattern.
Add methods to move ByteStrings underlying bytes
Add methods to move the underlying `Vec<u8>` for `ByteString`.
I saw this as at least two methods. One to "move and replace with and empty Vec<u8> (`bytes`), and one to take ownership of the whole object (`own_bytes`). I typically also don't like adding methods with out unit tests. If you think they're unnecessary, just let me know.
As always, please let me know if you have any comments, critiques, or nits!
Fixes#9655
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Add WebRender integration to Servo.
WebRender is an experimental GPU accelerated rendering backend for Servo.
The WebRender backend can be specified by running Servo with the -w option (otherwise the default rendering backend will be used).
WebRender has many bugs, and missing features - but it is usable to browse most websites - please report any WebRender specific rendering bugs you encounter!
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WebRender is an experimental GPU accelerated rendering backend for Servo.
The WebRender backend can be specified by running Servo with the -w option (otherwise the default rendering backend will be used).
WebRender has many bugs, and missing features - but it is usable to browse most websites - please report any WebRender specific rendering bugs you encounter!
Implementation of HTTP Redirect Fetch step
I've made a first draft of a complete implementation of HTTP Redirect Fetch, most of which is just refactored out of HTTP Fetch. I've also made some minor changes in a few other steps, all collected in the second commit, based on recent changes to the Fetch Standard. Since HTTP Redirect Fetch is so new, I figured now would be a fine time to make those other changes.
The biggest thing on my mind right now is how the spec says[1] "This algorithm will be used by HTML's "navigate" algorithm in addition to HTTP fetch above." This makes me think that this function, as well as HTTP Fetch, need to public, or at least have a public-facing function- since each Fetch function takes an Rc<Request>, which might be weird to require callers to supply.
[1] https://fetch.spec.whatwg.org/#http-redirect-fetch
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This commit refactors the style crate to be completely independent of
the actual implementation and pseudo-elements supported.
This also adds a gecko backend which introduces parsing for the
anonymous box pseudo-elements[1], although there's still no way of
querying them.
https://mxr.mozilla.org/mozilla-central/source/layout/style/nsCSSAnonBoxList.h
Test filtered responses and implement Cors Check Fetch step
I've been writing tests for creating filtered responses. So far I have three of the four types being made (namely, Basic, CORS, and Opaque), and just need to figure out how to make an OpaqueRedirect filtered response, since it's handled separately from the others. I will also add more tests to ensure the content of the filtered responses matches the limitations placed by the specification.
Along the way I implemented Cors Check, since it's required for the CORS filtered response. @jdm suggested I handle it in here, since it's such a small step, compared to other parts of Fetch.
Since all the tests currently pass, and I've spent a while adding the Cors Check and other pieces, I figured now would be a good time to start having it reviewed.
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Partial implementation of Main Fetch step
I started out with Step 11 of Main Fetch so I could test creating filtered responses, which broke my tests that compare the Fetch result to a message on a server. I realized that if I got the tests to work, I'd likely end up breaking them again with the next step of Main Fetch I added, so I went ahead and did as much of Main Fetch as I could figure out.
Some steps I'm sure I could implement, I just don't know how. Such as when the spec says to "wait for response", or how to implement a Runnable object (which iirc is what I need to use) to run everything after Step 8 in parallel.
The fetch tests are still not running correctly, but I sure it's because they're getting a filtered response which doesn't have the body of response. I'm not sure how to handle that, whether it means a change needed in the tests or in the Fetch code. Like always, I look forward to feedback on my work!
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Implement a basic test for Fetch
As per @jdm's suggestion that I start minimally testing the Fetch protocol to catch any errors, I wrote a very simple test that just calls Fetch and checks that the response isn't a network error. I've made changes as necessary for every failure I encountered, although this doesn't mean the implementation is faultless yet.
As always, I look forward to any feedback for improvements regarding the test itself, the changes to the fetch files I've made, and anything that I missed and should update.
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The pipeline id stuff is currently unused. If someone needs it, they can add
an additional trait bound on their css error reporter to get the pipeline id.
