mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2025-06-10 10:01:13 +09:00
a9ddd427cb
The main streams AO file has gotten very large, and is a bit difficult to navigate. In an effort to improve DX, this migrates ReadableStream AOs to their own file. And the helper classes used for the tee and pipe- to operations are also in their own files.
48 lines
1.8 KiB
C++
48 lines
1.8 KiB
C++
/*
|
|
* Copyright (c) 2023, Matthew Olsson <mattco@serenityos.org>
|
|
* Copyright (c) 2023, Shannon Booth <shannon@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <LibJS/Runtime/VM.h>
|
|
#include <LibWeb/Streams/UnderlyingSource.h>
|
|
#include <LibWeb/WebIDL/AbstractOperations.h>
|
|
#include <LibWeb/WebIDL/CallbackType.h>
|
|
#include <LibWeb/WebIDL/Types.h>
|
|
|
|
namespace Web::Streams {
|
|
|
|
JS::ThrowCompletionOr<UnderlyingSource> UnderlyingSource::from_value(JS::VM& vm, JS::Value value)
|
|
{
|
|
if (!value.is_object())
|
|
return UnderlyingSource {};
|
|
|
|
auto& object = value.as_object();
|
|
|
|
UnderlyingSource underlying_source {
|
|
.start = TRY(WebIDL::property_to_callback(vm, value, "start"_fly_string, WebIDL::OperationReturnsPromise::No)),
|
|
.pull = TRY(WebIDL::property_to_callback(vm, value, "pull"_fly_string, WebIDL::OperationReturnsPromise::Yes)),
|
|
.cancel = TRY(WebIDL::property_to_callback(vm, value, "cancel"_fly_string, WebIDL::OperationReturnsPromise::Yes)),
|
|
.type = {},
|
|
.auto_allocate_chunk_size = {},
|
|
};
|
|
|
|
auto type_value = TRY(object.get("type"_fly_string));
|
|
if (!type_value.is_undefined()) {
|
|
auto type_string = TRY(type_value.to_string(vm));
|
|
if (type_string == "bytes"sv)
|
|
underlying_source.type = ReadableStreamType::Bytes;
|
|
else
|
|
return vm.throw_completion<JS::TypeError>(MUST(String::formatted("Unknown stream type '{}'", type_value)));
|
|
}
|
|
|
|
if (TRY(object.has_property("autoAllocateChunkSize"_fly_string))) {
|
|
auto value = TRY(object.get("autoAllocateChunkSize"_fly_string));
|
|
underlying_source.auto_allocate_chunk_size = TRY(WebIDL::convert_to_int<WebIDL::UnsignedLongLong>(vm, value, WebIDL::EnforceRange::Yes));
|
|
}
|
|
|
|
return underlying_source;
|
|
}
|
|
|
|
}
|