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LibWeb: Perform writes during ReadableStreamPipeTo asynchronously

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I don't quite see what spec text requires this, but it is explicitly
checked by WPT. We used to pass this test, but that regressed after
commit 3c6010c663.
This commit is contained in:
Timothy Flynn 2025-04-14 15:45:40 -04:00 • committed by Tim Flynn
commit 988df9cc8c
Notes: github-actions[bot] 2025-04-14 20:57:12 +00:00
2 changed files with 11 additions and 4 deletions
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7
Libraries/LibWeb/Streams/AbstractOperations.cpp
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@ -497,8 +497,15 @@ private:
auto on_chunk = GC::create_function(heap(), [this](JS::Value chunk) { auto on_chunk = GC::create_function(heap(), [this](JS::Value chunk) {
m_unwritten_chunks.append(chunk); m_unwritten_chunks.append(chunk);
if (check_for_error_and_close_states())
return;
HTML::queue_a_microtask(nullptr, GC::create_function(m_realm->heap(), [this]() {
HTML::TemporaryExecutionContext execution_context { m_realm, HTML::TemporaryExecutionContext::CallbacksEnabled::Yes };
write_chunk(); write_chunk();
process(); process();
}));
}); });
auto on_complete = GC::create_function(heap(), [this]() { auto on_complete = GC::create_function(heap(), [this]() {

4
Tests/LibWeb/Text/expected/wpt-import/streams/piping/general-addition.any.txt
View file

@ -2,5 +2,5 @@ Harness status: OK
Found 1 tests Found 1 tests
1 Fail 1 Pass
Fail enqueue() must not synchronously call write algorithm Pass enqueue() must not synchronously call write algorithm