2dbd71d54b
It is now Stage 4 and has been merged into the main ECMA-262 spec: https://github.com/tc39/ecma262/commit/a78d504
61 lines
1.8 KiB
C++
61 lines
1.8 KiB
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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#pragma once
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#include <LibJS/Runtime/GlobalObject.h>
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#include <LibJS/Runtime/Map.h>
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#include <LibJS/Runtime/Object.h>
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#include <LibJS/Runtime/Value.h>
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namespace JS {
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class Set : public Object {
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JS_OBJECT(Set, Object);
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JS_DECLARE_ALLOCATOR(Set);
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public:
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static NonnullGCPtr<Set> create(Realm&);
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virtual void initialize(Realm&) override;
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virtual ~Set() override = default;
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// NOTE: Unlike what the spec says, we implement Sets using an underlying map,
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// so all the functions below do not directly implement the operations as
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// defined by the specification.
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void set_clear() { m_values->map_clear(); }
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bool set_remove(Value const& value) { return m_values->map_remove(value); }
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bool set_has(Value const& key) const { return m_values->map_has(key); }
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void set_add(Value const& key) { m_values->map_set(key, js_undefined()); }
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size_t set_size() const { return m_values->map_size(); }
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auto begin() const { return const_cast<Map const&>(*m_values).begin(); }
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auto begin() { return m_values->begin(); }
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auto end() const { return m_values->end(); }
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NonnullGCPtr<Set> copy() const;
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private:
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explicit Set(Object& prototype);
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virtual void visit_edges(Visitor& visitor) override;
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GCPtr<Map> m_values;
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};
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// 24.2.1.1 Set Records, https://tc39.es/ecma262/#sec-set-records
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struct SetRecord {
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NonnullGCPtr<Object const> set_object; // [[SetObject]]
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double size { 0 }; // [[Size]
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NonnullGCPtr<FunctionObject> has; // [[Has]]
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NonnullGCPtr<FunctionObject> keys; // [[Keys]]
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};
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ThrowCompletionOr<SetRecord> get_set_record(VM&, Value);
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bool set_data_has(NonnullGCPtr<Set>, Value);
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}
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