50bf303edd
This loosens the connection to the AST interpreter and will allow us to generate SourceRanges for the Bytecode interpreter in the future as well Moves UnrealizedSourceRanges from TracebackFrame to the JS namespace for this
58 lines
2 KiB
C++
58 lines
2 KiB
C++
/*
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* Copyright (c) 2020-2021, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2020-2021, Linus Groh <linusg@serenityos.org>
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* Copyright (c) 2022, Luke Wilde <lukew@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/DeprecatedFlyString.h>
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#include <AK/WeakPtr.h>
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#include <LibJS/Forward.h>
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#include <LibJS/Heap/MarkedVector.h>
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#include <LibJS/Module.h>
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#include <LibJS/Runtime/PrivateEnvironment.h>
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#include <LibJS/Runtime/Value.h>
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#include <LibJS/SourceRange.h>
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namespace JS {
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using ScriptOrModule = Variant<Empty, NonnullGCPtr<Script>, NonnullGCPtr<Module>>;
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// 9.4 Execution Contexts, https://tc39.es/ecma262/#sec-execution-contexts
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struct ExecutionContext {
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explicit ExecutionContext(Heap& heap);
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[[nodiscard]] ExecutionContext copy() const;
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void visit_edges(Cell::Visitor&);
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private:
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explicit ExecutionContext(MarkedVector<Value> existing_arguments, MarkedVector<Value> existing_local_variables);
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public:
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GCPtr<FunctionObject> function; // [[Function]]
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GCPtr<Realm> realm; // [[Realm]]
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ScriptOrModule script_or_module; // [[ScriptOrModule]]
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GCPtr<Environment> lexical_environment; // [[LexicalEnvironment]]
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GCPtr<Environment> variable_environment; // [[VariableEnvironment]]
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GCPtr<PrivateEnvironment> private_environment; // [[PrivateEnvironment]]
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// Non-standard: This points at something that owns this ExecutionContext, in case it needs to be protected from GC.
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GCPtr<Cell> context_owner;
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UnrealizedSourceRange source_range;
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DeprecatedFlyString function_name;
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Value this_value;
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MarkedVector<Value> arguments;
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MarkedVector<Value> local_variables;
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bool is_strict_mode { false };
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// https://html.spec.whatwg.org/multipage/webappapis.html#skip-when-determining-incumbent-counter
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// FIXME: Move this out of LibJS (e.g. by using the CustomData concept), as it's used exclusively by LibWeb.
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size_t skip_when_determining_incumbent_counter { 0 };
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};
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}
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