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LibWeb: Add the WritableStream interface

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Matthew Olsson 2023-04-02 15:15:53 -07:00 • committed by Linus Groh
parent 78feba401d
commit e93560b769
10 changed files with 311 additions and 0 deletions
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13
Userland/Libraries/LibWeb/Streams/AbstractOperations.cpp
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@ -13,7 +13,9 @@
#include <LibWeb/Streams/ReadableStreamDefaultController.h>
#include <LibWeb/Streams/ReadableStreamDefaultReader.h>
#include <LibWeb/Streams/ReadableStreamGenericReader.h>
#include <LibWeb/Streams/UnderlyingSink.h>
#include <LibWeb/Streams/UnderlyingSource.h>
#include <LibWeb/Streams/WritableStream.h>
#include <LibWeb/WebIDL/AbstractOperations.h>
#include <LibWeb/WebIDL/ExceptionOr.h>
#include <LibWeb/WebIDL/Promise.h>
@ -734,6 +736,17 @@ WebIDL::ExceptionOr<void> set_up_readable_stream_default_controller_from_underly
return set_up_readable_stream_default_controller(stream, controller, move(start_algorithm), move(pull_algorithm), move(cancel_algorithm), high_water_mark, move(size_algorithm));
}
// https://streams.spec.whatwg.org/#is-writable-stream-locked
bool is_writable_stream_locked(WritableStream const& stream)
{
// 1. If stream.[[writer]] is undefined, return false.
if (!stream.writer())
return false;
// 2. Return true.
return true;
}
// Non-standard function to aid in converting a user-provided function into a WebIDL::Callback. This is essentially
// what the Bindings generator would do at compile time, but at runtime instead.
JS::ThrowCompletionOr<JS::Handle<WebIDL::CallbackType>> property_to_callback(JS::VM& vm, JS::Value value, JS::PropertyKey const& property_key)