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LibWeb: Properly convert UnderlyingSource's autoAllocateChunkSize to u64

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The JS::Value being passed through is not a bigint, and needs to be
converted using ConvertToInt, as per:

https://webidl.spec.whatwg.org/#es-unsigned-long-long

Furthermore, the IDL definition also specifies that this is associated
with the [EnforceRange] extended attribute.

This makes it actually possible to pass through an autoAllocateChunkSize
to the ReadableStream constructor without it throwing a TypeError.
This commit is contained in:
Shannon Booth 2023-12-28 11:47:56 +13:00 • committed by Andreas Kling
parent 99bf986889
commit 6b88fc2e05
3 changed files with 18 additions and 2 deletions
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9
Userland/Libraries/LibWeb/Streams/UnderlyingSource.cpp
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@ -1,5 +1,6 @@
/*
* Copyright (c) 2023, Matthew Olsson <mattco@serenityos.org>
* Copyright (c) 2023, Shannon Booth <shannon@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
@ -7,7 +8,9 @@
#include <LibJS/Runtime/VM.h>
#include <LibWeb/Streams/AbstractOperations.h>
#include <LibWeb/Streams/UnderlyingSource.h>
#include <LibWeb/WebIDL/AbstractOperations.h>
#include <LibWeb/WebIDL/CallbackType.h>
#include <LibWeb/WebIDL/Types.h>
namespace Web::Streams {
@ -35,8 +38,10 @@ JS::ThrowCompletionOr<UnderlyingSource> UnderlyingSource::from_value(JS::VM& vm,
return vm.throw_completion<JS::TypeError>(ByteString::formatted("Unknown stream type '{}'", type_value));
}
if (TRY(object.has_property("autoAllocateChunkSize")))
underlying_source.auto_allocate_chunk_size = TRY(TRY(object.get("autoAllocateChunkSize")).to_bigint_uint64(vm));
if (TRY(object.has_property("autoAllocateChunkSize"))) {
auto value = TRY(object.get("autoAllocateChunkSize"));
underlying_source.auto_allocate_chunk_size = TRY(WebIDL::convert_to_int<WebIDL::UnsignedLongLong>(vm, value, WebIDL::EnforceRange::Yes));
}
return underlying_source;
}