mirror of
https://github.com/RGBCube/serenity
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48d8aff436
This remained undetected for a long time as HeaderCheck is disabled by
default. This commit makes the following file compile again:
// file: compile_me.cpp
#include <LibJS/Runtime/StringPrototype.h>
// That's it, this was enough to cause a compilation error.
Likewise for most other files touched by this commit.
124 lines
4.2 KiB
C++
124 lines
4.2 KiB
C++
/*
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* Copyright (c) 2020-2021, Andreas Kling <kling@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 <AK/FlyString.h>
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#include <AK/HashMap.h>
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#include <LibJS/AST.h>
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#include <LibJS/Runtime/Completion.h>
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#include <LibJS/Runtime/Environment.h>
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#include <LibJS/Runtime/Value.h>
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namespace JS {
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class DeclarativeEnvironment : public Environment {
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JS_ENVIRONMENT(DeclarativeEnvironment, Environment);
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struct Binding {
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FlyString name;
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Value value;
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bool strict { false };
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bool mutable_ { false };
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bool can_be_deleted { false };
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bool initialized { false };
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};
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public:
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static DeclarativeEnvironment* create_for_per_iteration_bindings(Badge<ForStatement>, DeclarativeEnvironment& other, size_t bindings_size);
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virtual ~DeclarativeEnvironment() override = default;
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virtual ThrowCompletionOr<bool> has_binding(FlyString const& name, Optional<size_t>* = nullptr) const override;
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virtual ThrowCompletionOr<void> create_mutable_binding(VM&, FlyString const& name, bool can_be_deleted) override;
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virtual ThrowCompletionOr<void> create_immutable_binding(VM&, FlyString const& name, bool strict) override;
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virtual ThrowCompletionOr<void> initialize_binding(VM&, FlyString const& name, Value) override;
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virtual ThrowCompletionOr<void> set_mutable_binding(VM&, FlyString const& name, Value, bool strict) override;
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virtual ThrowCompletionOr<Value> get_binding_value(VM&, FlyString const& name, bool strict) override;
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virtual ThrowCompletionOr<bool> delete_binding(VM&, FlyString const& name) override;
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void initialize_or_set_mutable_binding(Badge<ScopeNode>, VM&, FlyString const& name, Value value);
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ThrowCompletionOr<void> initialize_or_set_mutable_binding(VM&, FlyString const& name, Value value);
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// This is not a method defined in the spec! Do not use this in any LibJS (or other spec related) code.
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[[nodiscard]] Vector<FlyString> bindings() const
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{
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Vector<FlyString> names;
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names.ensure_capacity(m_bindings.size());
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for (auto const& binding : m_bindings)
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names.unchecked_append(binding.name);
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return names;
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}
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ThrowCompletionOr<void> set_mutable_binding_direct(VM&, size_t index, Value, bool strict);
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ThrowCompletionOr<Value> get_binding_value_direct(VM&, size_t index, bool strict);
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private:
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ThrowCompletionOr<void> initialize_binding_direct(VM&, Binding&, Value);
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ThrowCompletionOr<Value> get_binding_value_direct(VM&, Binding&, bool strict);
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ThrowCompletionOr<void> set_mutable_binding_direct(VM&, Binding&, Value, bool strict);
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protected:
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DeclarativeEnvironment();
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explicit DeclarativeEnvironment(Environment* parent_environment);
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DeclarativeEnvironment(Environment* parent_environment, Span<Binding const> bindings);
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virtual void visit_edges(Visitor&) override;
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class BindingAndIndex {
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public:
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Binding& binding()
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{
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if (m_referenced_binding)
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return *m_referenced_binding;
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return m_temporary_binding;
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}
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BindingAndIndex(Binding* binding, Optional<size_t> index)
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: m_referenced_binding(binding)
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, m_index(move(index))
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{
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}
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explicit BindingAndIndex(Binding temporary_binding)
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: m_temporary_binding(move(temporary_binding))
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{
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}
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Optional<size_t> const& index() const { return m_index; }
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private:
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Binding* m_referenced_binding { nullptr };
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Binding m_temporary_binding {};
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Optional<size_t> m_index;
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};
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friend class ModuleEnvironment;
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virtual Optional<BindingAndIndex> find_binding_and_index(FlyString const& name) const
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{
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auto it = m_bindings.find_if([&](auto const& binding) {
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return binding.name == name;
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});
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if (it == m_bindings.end())
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return {};
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return BindingAndIndex { const_cast<Binding*>(&(*it)), it.index() };
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}
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private:
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virtual bool is_declarative_environment() const override { return true; }
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Vector<Binding> m_bindings;
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};
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template<>
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inline bool Environment::fast_is<DeclarativeEnvironment>() const { return is_declarative_environment(); }
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}
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