////  ScriptContext.h//  libraries/script-engine/src////  Created by Heather Anderson on 5/1/21.//  Copyright 2021 Vircadia contributors.//  Copyright 2023 Overte e.V.////  Distributed under the Apache License, Version 2.0.//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html//  SPDX-License-Identifier: Apache-2.0// /// @addtogroup ScriptEngine/// @{ #ifndef hifi_ScriptContext_h#define hifi_ScriptContext_h #include <memory> #include <QtCore/QString>#include <QtCore/QStringList> #include "ScriptValue.h" class ScriptContext;class ScriptEngine;class ScriptFunctionContext;using ScriptContextPointer = std::shared_ptr<ScriptContext>;using ScriptFunctionContextPointer = std::shared_ptr<ScriptFunctionContext>;using ScriptEnginePointer = std::shared_ptr<ScriptEngine>; /// [ScriptInterface] Provides an engine-independent interface for QScriptContextInfoclass ScriptFunctionContext {public:    enum FunctionType {        ScriptFunction = 0,        QtFunction = 1,        QtPropertyFunction = 2,        NativeFunction = 3,    };    public:    virtual QString fileName() const = 0;    virtual QString functionName() const = 0;    virtual FunctionType functionType() const = 0;    virtual int lineNumber() const = 0; protected:    ~ScriptFunctionContext() {} // prevent explicit deletion of base class}; /// [ScriptInterface] Provides an engine-independent interface for QScriptContextclass ScriptContext {public:    virtual int argumentCount() const = 0;    virtual ScriptValue argument(int index) const = 0;    virtual QStringList backtrace() const = 0;     // Name of the file in which message was generated. Empty string when no file name is available.    virtual int currentLineNumber() const = 0;     // Number of the line on which message was generated. -1 if there line number is not available.    virtual QString currentFileName() const = 0;     virtual ScriptValue callee() const = 0;    virtual ScriptEnginePointer engine() const = 0;    virtual ScriptFunctionContextPointer functionContext() const = 0;    virtual ScriptContextPointer parentContext() const = 0;    virtual ScriptValue thisObject() const = 0;    virtual ScriptValue throwError(const QString& text) = 0;    virtual ScriptValue throwValue(const ScriptValue& value) = 0; protected:    ~ScriptContext() {}  // prevent explicit deletion of base class}; class ScriptContextGuard {public:    ScriptContextGuard(ScriptContext* context);    ~ScriptContextGuard(); private:    ScriptContext* _oldContext;}; #endif // hifi_ScriptContext_h /// @}