
Some of these are allocated upon initialization of the intrinsics, and some lazily, but in neither case the getters actually return a nullptr. This saves us a whole bunch of pointer dereferences (as NonnullGCPtr has an `operator T&()`), and also has the interesting side effect of forcing us to explicitly use the FunctionObject& overload of call(), as passing a NonnullGCPtr is ambigous - it could implicitly be turned into a Value _or_ a FunctionObject& (so we have to dereference manually).
30 lines
896 B
C++
30 lines
896 B
C++
/*
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* Copyright (c) 2021, Idan Horowitz <idan.horowitz@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/DataView.h>
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namespace JS {
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NonnullGCPtr<DataView> DataView::create(Realm& realm, ArrayBuffer* viewed_buffer, size_t byte_length, size_t byte_offset)
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{
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return realm.heap().allocate<DataView>(realm, viewed_buffer, byte_length, byte_offset, realm.intrinsics().data_view_prototype()).release_allocated_value_but_fixme_should_propagate_errors();
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}
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DataView::DataView(ArrayBuffer* viewed_buffer, size_t byte_length, size_t byte_offset, Object& prototype)
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: Object(ConstructWithPrototypeTag::Tag, prototype)
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, m_viewed_array_buffer(viewed_buffer)
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, m_byte_length(byte_length)
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, m_byte_offset(byte_offset)
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{
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}
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void DataView::visit_edges(Visitor& visitor)
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{
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Base::visit_edges(visitor);
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visitor.visit(m_viewed_array_buffer);
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}
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}
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