
In FetchAlgorithms, it is common for callbacks to capture realms. This can indirectly keep objects alive that hold FetchController with these callbacks. This creates a cyclic dependency. However, when JS::HeapFunction is used, this is not a problem, as captured by callbacks values do not create new roots.
38 lines
1.5 KiB
C++
38 lines
1.5 KiB
C++
/*
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* Copyright (c) 2022, Linus Groh <linusg@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/Heap/Heap.h>
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#include <LibJS/Runtime/VM.h>
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#include <LibWeb/Fetch/Infrastructure/FetchAlgorithms.h>
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namespace Web::Fetch::Infrastructure {
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JS::NonnullGCPtr<FetchAlgorithms> FetchAlgorithms::create(JS::VM& vm, Input input)
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{
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return vm.heap().allocate_without_realm<FetchAlgorithms>(vm, move(input));
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}
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FetchAlgorithms::FetchAlgorithms(JS::VM& vm, Input input)
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: m_process_request_body_chunk_length(JS::create_heap_function(vm.heap(), move(input.process_request_body_chunk_length)))
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, m_process_request_end_of_body(JS::create_heap_function(vm.heap(), move(input.process_request_end_of_body)))
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, m_process_early_hints_response(JS::create_heap_function(vm.heap(), move(input.process_early_hints_response)))
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, m_process_response(JS::create_heap_function(vm.heap(), move(input.process_response)))
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, m_process_response_end_of_body(JS::create_heap_function(vm.heap(), move(input.process_response_end_of_body)))
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, m_process_response_consume_body(JS::create_heap_function(vm.heap(), move(input.process_response_consume_body)))
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{
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}
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void FetchAlgorithms::visit_edges(JS::Cell::Visitor& visitor)
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{
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visitor.visit(m_process_request_body_chunk_length);
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visitor.visit(m_process_request_end_of_body);
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visitor.visit(m_process_early_hints_response);
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visitor.visit(m_process_response);
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visitor.visit(m_process_response_end_of_body);
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visitor.visit(m_process_response_consume_body);
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}
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}
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