mirror of
				https://github.com/LadybirdBrowser/ladybird.git
				synced 2025-11-04 07:10:57 +00:00 
			
		
		
		
	Resulting in a massive rename across almost everywhere! Alongside the namespace change, we now have the following names: * JS::NonnullGCPtr -> GC::Ref * JS::GCPtr -> GC::Ptr * JS::HeapFunction -> GC::Function * JS::CellImpl -> GC::Cell * JS::Handle -> GC::Root
		
			
				
	
	
		
			82 lines
		
	
	
	
		
			3.1 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			82 lines
		
	
	
	
		
			3.1 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/*
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 * Copyright (c) 2023, Matthew Olsson <mattco@serenityos.org>
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 * Copyright (c) 2023, Shannon Booth <shannon@serenityos.org>
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 *
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 * SPDX-License-Identifier: BSD-2-Clause
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 */
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#include <LibJS/Runtime/TypedArray.h>
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#include <LibWeb/Bindings/Intrinsics.h>
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#include <LibWeb/Bindings/ReadableStreamBYOBRequestPrototype.h>
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#include <LibWeb/Streams/ReadableByteStreamController.h>
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#include <LibWeb/Streams/ReadableStreamBYOBRequest.h>
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#include <LibWeb/WebIDL/Buffers.h>
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namespace Web::Streams {
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GC_DEFINE_ALLOCATOR(ReadableStreamBYOBRequest);
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// https://streams.spec.whatwg.org/#rs-byob-request-view
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GC::Ptr<WebIDL::ArrayBufferView> ReadableStreamBYOBRequest::view()
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{
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    // 1. Return this.[[view]].
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    return m_view;
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}
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ReadableStreamBYOBRequest::ReadableStreamBYOBRequest(JS::Realm& realm)
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    : Bindings::PlatformObject(realm)
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{
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}
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void ReadableStreamBYOBRequest::initialize(JS::Realm& realm)
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{
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    Base::initialize(realm);
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    WEB_SET_PROTOTYPE_FOR_INTERFACE(ReadableStreamBYOBRequest);
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}
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void ReadableStreamBYOBRequest::visit_edges(Cell::Visitor& visitor)
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{
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    Base::visit_edges(visitor);
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    visitor.visit(m_controller);
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    visitor.visit(m_view);
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}
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// https://streams.spec.whatwg.org/#rs-byob-request-respond
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WebIDL::ExceptionOr<void> ReadableStreamBYOBRequest::respond(WebIDL::UnsignedLongLong bytes_written)
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{
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    // 1. If this.[[controller]] is undefined, throw a TypeError exception.
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    if (!m_controller)
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        return WebIDL::SimpleException { WebIDL::SimpleExceptionType::TypeError, "Controller is undefined"_string };
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    // 2. If ! IsDetachedBuffer(this.[[view]].[[ArrayBuffer]]) is true, throw a TypeError exception.
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    if (m_view->viewed_array_buffer()->is_detached())
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        return WebIDL::SimpleException { WebIDL::SimpleExceptionType::TypeError, "Unable to respond to detached ArrayBuffer"_string };
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    // 3. Assert: this.[[view]].[[ByteLength]] > 0.
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    VERIFY(m_view->viewed_array_buffer()->byte_length() > 0);
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    // 4. Assert: this.[[view]].[[ViewedArrayBuffer]].[[ByteLength]] > 0.
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    VERIFY(m_view->viewed_array_buffer()->byte_length() > 0);
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    // 5. Perform ? ReadableByteStreamControllerRespond(this.[[controller]], bytesWritten).
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    return readable_byte_stream_controller_respond(*m_controller, bytes_written);
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}
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// https://streams.spec.whatwg.org/#rs-byob-request-respond-with-new-view
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WebIDL::ExceptionOr<void> ReadableStreamBYOBRequest::respond_with_new_view(GC::Root<WebIDL::ArrayBufferView> const& view)
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{
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    auto& realm = this->realm();
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    // 1. If this.[[controller]] is undefined, throw a TypeError exception.
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    if (!m_controller)
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        return WebIDL::SimpleException { WebIDL::SimpleExceptionType::TypeError, "Controller is undefined"_string };
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    // 2. If ! IsDetachedBuffer(view.[[ViewedArrayBuffer]]) is true, throw a TypeError exception.
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    if (view->viewed_array_buffer()->is_detached())
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        return WebIDL::SimpleException { WebIDL::SimpleExceptionType::TypeError, "Unable to respond with a detached ArrayBuffer"_string };
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    // 3. Return ? ReadableByteStreamControllerRespondWithNewView(this.[[controller]], view).
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    return TRY(readable_byte_stream_controller_respond_with_new_view(realm, *m_controller, *view));
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}
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}
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