ladybird/Libraries/LibJS/Runtime/ObjectEnvironment.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

54 lines
2 KiB
C++

/*
* Copyright (c) 2020-2021, Andreas Kling <andreas@ladybird.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibJS/Runtime/Environment.h>
namespace JS {
class ObjectEnvironment final : public Environment {
JS_ENVIRONMENT(ObjectEnvironment, Environment);
GC_DECLARE_ALLOCATOR(ObjectEnvironment);
public:
enum class IsWithEnvironment {
No,
Yes,
};
virtual ThrowCompletionOr<bool> has_binding(DeprecatedFlyString const& name, Optional<size_t>* = nullptr) const override;
virtual ThrowCompletionOr<void> create_mutable_binding(VM&, DeprecatedFlyString const& name, bool can_be_deleted) override;
virtual ThrowCompletionOr<void> create_immutable_binding(VM&, DeprecatedFlyString const& name, bool strict) override;
virtual ThrowCompletionOr<void> initialize_binding(VM&, DeprecatedFlyString const& name, Value, Environment::InitializeBindingHint) override;
virtual ThrowCompletionOr<void> set_mutable_binding(VM&, DeprecatedFlyString const& name, Value, bool strict) override;
virtual ThrowCompletionOr<Value> get_binding_value(VM&, DeprecatedFlyString const& name, bool strict) override;
virtual ThrowCompletionOr<bool> delete_binding(VM&, DeprecatedFlyString const& name) override;
// 9.1.1.2.10 WithBaseObject ( ), https://tc39.es/ecma262/#sec-object-environment-records-withbaseobject
virtual Object* with_base_object() const override
{
if (is_with_environment())
return m_binding_object;
return nullptr;
}
// [[BindingObject]], The binding object of this Environment Record.
Object& binding_object() { return m_binding_object; }
// [[IsWithEnvironment]], Indicates whether this Environment Record is created for a with statement.
bool is_with_environment() const { return m_with_environment; }
private:
ObjectEnvironment(Object& binding_object, IsWithEnvironment, Environment* outer_environment);
virtual void visit_edges(Visitor&) override;
GC::Ref<Object> m_binding_object;
bool m_with_environment { false };
};
}