ladybird/Userland/Libraries/LibJS/Runtime/ExecutionContext.h

66 lines
1.9 KiB
C++

/*
* Copyright (c) 2020-2021, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2020-2021, Linus Groh <linusg@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/FlyString.h>
#include <LibJS/Forward.h>
#include <LibJS/Runtime/MarkedValueList.h>
#include <LibJS/Runtime/PrivateEnvironment.h>
#include <LibJS/Runtime/Value.h>
namespace JS {
using ScriptOrModule = Variant<Empty, Script*, Module*>;
// 9.4 Execution Contexts, https://tc39.es/ecma262/#sec-execution-contexts
struct ExecutionContext {
explicit ExecutionContext(Heap& heap)
: arguments(heap)
{
}
[[nodiscard]] ExecutionContext copy() const
{
ExecutionContext copy { arguments };
copy.function = function;
copy.realm = realm;
copy.script_or_module = script_or_module;
copy.lexical_environment = lexical_environment;
copy.variable_environment = variable_environment;
copy.private_environment = private_environment;
copy.current_node = current_node;
copy.function_name = function_name;
copy.this_value = this_value;
copy.is_strict_mode = is_strict_mode;
return copy;
}
private:
explicit ExecutionContext(MarkedValueList existing_arguments)
: arguments(move(existing_arguments))
{
}
public:
FunctionObject* function { nullptr }; // [[Function]]
Realm* realm { nullptr }; // [[Realm]]
ScriptOrModule script_or_module; // [[ScriptOrModule]]
Environment* lexical_environment { nullptr }; // [[LexicalEnvironment]]
Environment* variable_environment { nullptr }; // [[VariableEnvironment]]
PrivateEnvironment* private_environment { nullptr }; // [[PrivateEnvironment]]
ASTNode const* current_node { nullptr };
FlyString function_name;
Value this_value;
MarkedValueList arguments;
bool is_strict_mode { false };
};
}