ladybird/Libraries/LibJS/Runtime/IteratorHelper.h
Shannon Booth f87041bf3a LibGC+Everywhere: Factor out a LibGC from LibJS
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
2024-11-15 14:49:20 +01:00

50 lines
1.6 KiB
C++

/*
* Copyright (c) 2023, Tim Flynn <trflynn89@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibGC/Function.h>
#include <LibJS/Runtime/Completion.h>
#include <LibJS/Runtime/GeneratorObject.h>
#include <LibJS/Runtime/Iterator.h>
#include <LibJS/Runtime/Object.h>
namespace JS {
class IteratorHelper final : public GeneratorObject {
JS_OBJECT(IteratorHelper, GeneratorObject);
GC_DECLARE_ALLOCATOR(IteratorHelper);
public:
using Closure = GC::Function<ThrowCompletionOr<Value>(VM&, IteratorHelper&)>;
using AbruptClosure = GC::Function<ThrowCompletionOr<Value>(VM&, IteratorHelper&, Completion const&)>;
static ThrowCompletionOr<GC::Ref<IteratorHelper>> create(Realm&, GC::Ref<IteratorRecord>, GC::Ref<Closure>, GC::Ptr<AbruptClosure> = {});
IteratorRecord& underlying_iterator() { return m_underlying_iterator; }
IteratorRecord const& underlying_iterator() const { return m_underlying_iterator; }
size_t counter() const { return m_counter; }
void increment_counter() { ++m_counter; }
Value result(Value);
ThrowCompletionOr<Value> close_result(VM&, Completion);
private:
IteratorHelper(Realm&, Object& prototype, GC::Ref<IteratorRecord>, GC::Ref<Closure>, GC::Ptr<AbruptClosure>);
virtual void visit_edges(Visitor&) override;
virtual ThrowCompletionOr<Value> execute(VM&, JS::Completion const& completion) override;
GC::Ref<IteratorRecord> m_underlying_iterator; // [[UnderlyingIterator]]
GC::Ref<Closure> m_closure;
GC::Ptr<AbruptClosure> m_abrupt_closure;
size_t m_counter { 0 };
bool m_done { false };
};
}