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** Copyright (C) 2016 The Qt Company Ltd.
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** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
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#ifndef GLSLSYMBOL_H
#define GLSLSYMBOL_H

#include "glsl.h"
#include <QString>

namespace GLSL {

class Symbol;
class Scope;

class GLSL_EXPORT Symbol
{
public:
    Symbol(Scope *scope = 0);
    virtual ~Symbol();

    Scope *scope() const;
    void setScope(Scope *scope);

    QString name() const;
    void setName(const QString &name);

    virtual Scope *asScope() { return 0; }
    virtual Struct *asStruct() { return 0; }
    virtual Function *asFunction() { return 0; }
    virtual Argument *asArgument() { return 0; }
    virtual Block *asBlock() { return 0; }
    virtual Variable *asVariable() { return 0; }
    virtual OverloadSet *asOverloadSet() { return 0; }
    virtual Namespace *asNamespace() { return 0; }

    virtual const Type *type() const = 0;

private:
    Scope *_scope;
    QString _name;
};

class GLSL_EXPORT Scope: public Symbol
{
public:
    Scope(Scope *sscope = 0);

    Symbol *lookup(const QString &name) const;

    virtual QList<Symbol *> members() const;
    virtual void add(Symbol *symbol) = 0;
    virtual Symbol *find(const QString &name) const = 0;

    virtual Scope *asScope() { return this; }
};

} // namespace GLSL

#endif // GLSLSYMBOL_H
