`Window`'s `self` property and `DedicatedWorkerGlobalScope`'s `name`
property are defined as Web IDL read-only attributes with the
`[Replaceable]` extended attribute, meaning that their setter will
redefine the property as a data property with the set value, rather than
changing some internal state. Deno currently defines them as read-only
data properties instead.
Given that Web IDL requires all attributes to be accessor properties
rather than data properties, but Deno exposes almost all of those
properties as either read-only or writable data properties, it makes
sense to expose `[Replaceable]` properties as writable as well – as is
already the case with `WindowOrWorkerGlobalScope`'s `performance`
property.
Classic workers were implemented in denoland#11338, which also enabled the WPT
tests in the `workers` directory. However, the rest of WPT worker tests
were not enabled because a number of them were hanging due to
web-platform-tests/wpt#29777. Now that that WPT issue is fixed, the bulk
of worker tests can be enabled.
There are still a few tests that hang, and so haven't been enabled. In
particular:
- The following tests seem to hang because a promise fails to resolve.
We can detect such cases in non-worker tests because the process will
exit without calling the WPT completion callback, but in worker tests
the worker message ops will keep the event loop running. This will be
fixed when we add timeouts to WPT tests (denoland#9460).
- `/fetch/api/basic/error-after-response.any.worker.html`
- `/html/webappapis/microtask-queuing/queue-microtask-exceptions.any.worker.html`
- `/webmessaging/message-channels/worker-post-after-close.any.worker.html`
- `/webmessaging/message-channels/worker.any.worker.html`
- `/websockets/Create-on-worker-shutdown.any.worker.html`
- The following tests apparently hang because a promise rejection is
never handled, which will kill the process in the main thread but not
in workers (denoland#12221).
- `/streams/readable-streams/async-iterator.any.worker.html`
- `/workers/interfaces/WorkerUtils/importScripts/report-error-setTimeout-cross-origin.sub.any.worker.html`
- `/workers/interfaces/WorkerUtils/importScripts/report-error-setTimeout-redirect-to-cross-origin.sub.any.worker.html`
- `/workers/interfaces/WorkerUtils/importScripts/report-error-setTimeout-same-origin.sub.any.worker.html`
In the spec, a URL record has an associated "blob URL entry", which for
`blob:` URLs is populated during parsing to contain a reference to the
`Blob` object that backs that object URL. It is this blob URL entry that
the `fetch` API uses to resolve an object URL.
Therefore, since the `Request` constructor parses URL inputs, it will
have an associated blob URL entry which will be used when fetching, even
if the object URL has been revoked since the construction of the
`Request` object. (The `Request` constructor takes the URL as a string
and parses it, so the object URL must be live at the time it is called.)
This PR adds a new `blobFromObjectUrl` JS function (backed by a new
`op_blob_from_object_url` op) that, if the URL is a valid object URL,
returns a new `Blob` object whose parts are references to the same Rust
`BlobPart`s used by the original `Blob` object. It uses this function to
add a new `blobUrlEntry` field to inner requests, which will be `null`
or such a `Blob`, and then uses `Blob.prototype.stream()` as the
response's body. As a result of this, the `blob:` URL resolution from
`op_fetch` is now useless, and has been removed.
This adds support for the URLPattern API.
The API is added in --unstable only, as it has not yet shipped in any
browser. It is targeted for shipping in Chrome 95.
Spec: https://wicg.github.io/urlpattern/
Co-authored-by: crowlKats < crowlkats@toaxl.com >
Classic worker scripts are now executed in the context of a Tokio
runtime. This does mean we can not spawn more tokio runtimes in
"op_worker_sync_fetch". We instead spawn a new thread there, that can
create a new Tokio runtime that we can use to block the worker thread.
This commit implements classic workers, but only when the `--enable-testing-features-do-not-use` flag is provided. This change is not user facing. Classic workers are used extensively in WPT tests. The classic workers do not support loading from disk, and do not support TypeScript.
Co-authored-by: Luca Casonato <hello@lcas.dev>
Currently, calling the `abort()` method on a `FileReader` object aborts
any current read operation, but it also prevents any read operation
started at some later point from starting. The File API instead
specifies that calling `abort()` should reset the `FileReader`'s state
and result, as well as removing any queued tasks from the current
operation that haven't yet run.
Currently, a WPT test is considered failed if its status code is
anything other than 0, regardless of whether the test suite completed
running or not, and any subtests that haven't finished running are not
considered to be failures.
But a test can exit with a zero status code before it has completed
running, if the event loop has run out of tasks because of a bug in one
of the ops, leading to false positives. This change fixes that.
The WebAssembly streaming APIs used to be enabled, but used to take
buffer sources as their first argument (see #6154 and #7259). This
change re-enables them, requiring a Promise<Response> instead, as well as
enabling asynchronous compilation of WebAssembly modules.
Additionally, if the existing `Request`'s body is disturbed, the Request creation
should fail.
This change also updates the step numbers in the Request constructor to match
whatwg/fetch#1249.
This adds a daily scheduled CI pipeline that runs WPT tests against
the most recent epochs/daily every night. Results are uploaded to
wpt.fyi.
WPTs are run on all supported platforms, on both stable and canary.
These reports can be consumed by tools like `wptreport` or
https://wpt.fyi. The old style report could be removed in a future PR
when wpt.deno.land is updated.
This commit removes all JS based text encoding / text decoding. Instead
encoding now happens in Rust via encoding_rs (already in tree). This
implementation retains stream support, but adds the last missing
encodings. We are incredibly close to 100% WPT on text encoding now.
This should reduce our baseline heap by quite a bit.
Replaces the file-backed provider by an in-memory one because proper
file locking is a hard problem that detracts from the proof of concept.
Teach the WPT runner how to extract tests from .html files because all
the relevant tests in test_util/wpt/webmessaging/broadcastchannel are
inside basics.html and interface.html.
This commit aligns the `fetch` API and the `Request` / `Response`
classes belonging to it to the spec. This commit enables all the
relevant `fetch` WPT tests. Spec compliance is now at around 90%.
Performance is essentially identical now (within 1% of 1.9.0).
This commit aligns `Headers` to spec. It also removes the now unused
03_dom_iterable.js file. We now pass all relevant `Headers` WPT. We do
not implement any sort of header filtering, as we are a server side
runtime.
This is likely not the most efficient implementation of `Headers` yet.
It is however spec compliant. Once all the APIs in the `HTTP` hot loop
are correct we can start optimizing them. It is likely that this commit
reduces bench throughput temporarily.
- Improves op performance.
- Handle op-metadata (errors, promise IDs) explicitly in the op-layer vs
per op-encoding (aka: out-of-payload).
- Remove shared queue & custom "asyncHandlers", all async values are
returned in batches via js_recv_cb.
- The op-layer should be thought of as simple function calls with little
indirection or translation besides the conceptually straightforward
serde_v8 bijections.
- Preserve concepts of json/bin/min as semantic groups of their
inputs/outputs instead of their op-encoding strategy, preserving these
groups will also facilitate partial transitions over to v8 Fast API for the
"min" and "bin" groups
