ladybird/Libraries/LibJS/Runtime/ModuleEnvironment.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

49 lines
1.9 KiB
C++

/*
* Copyright (c) 2022, David Tuin <davidot@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibJS/Module.h>
#include <LibJS/Runtime/DeclarativeEnvironment.h>
#include <LibJS/Runtime/Environment.h>
namespace JS {
// 9.1.1.5 Module Environment Records, https://tc39.es/ecma262/#sec-module-environment-records
class ModuleEnvironment final : public DeclarativeEnvironment {
JS_ENVIRONMENT(ModuleEnvironment, DeclarativeEnvironment);
GC_DECLARE_ALLOCATOR(ModuleEnvironment);
public:
// Note: Module Environment Records support all of the declarative Environment Record methods listed
// in Table 18 and share the same specifications for all of those methods except for
// GetBindingValue, DeleteBinding, HasThisBinding and GetThisBinding.
// In addition, module Environment Records support the methods listed in Table 24.
virtual ThrowCompletionOr<Value> get_binding_value(VM&, DeprecatedFlyString const& name, bool strict) override;
virtual ThrowCompletionOr<bool> delete_binding(VM&, DeprecatedFlyString const& name) override;
virtual bool has_this_binding() const final { return true; }
virtual ThrowCompletionOr<Value> get_this_binding(VM&) const final;
ThrowCompletionOr<void> create_import_binding(DeprecatedFlyString name, Module* module, DeprecatedFlyString binding_name);
private:
explicit ModuleEnvironment(Environment* outer_environment);
virtual void visit_edges(Visitor&) override;
struct IndirectBinding {
DeprecatedFlyString name;
GC::Ptr<Module> module;
DeprecatedFlyString binding_name;
};
IndirectBinding const* get_indirect_binding(DeprecatedFlyString const& name) const;
virtual Optional<BindingAndIndex> find_binding_and_index(DeprecatedFlyString const& name) const override;
// FIXME: Since we always access this via the name this could be a map.
Vector<IndirectBinding> m_indirect_bindings;
};
}