// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0

#pragma once

#include "glslast.h"

namespace GLSL {

class GLSL_EXPORT Visitor
{
public:
    Visitor();
    virtual ~Visitor();

    void accept(AST *ast);

    virtual bool preVisit(AST *) { return true; }
    virtual void postVisit(AST *) {}

    virtual bool visit(TranslationUnitAST *) { return true; }
    virtual void endVisit(TranslationUnitAST *) {}

    virtual bool visit(IdentifierExpressionAST *) { return true; }
    virtual void endVisit(IdentifierExpressionAST *) {}

    virtual bool visit(LiteralExpressionAST *) { return true; }
    virtual void endVisit(LiteralExpressionAST *) {}

    virtual bool visit(BinaryExpressionAST *) { return true; }
    virtual void endVisit(BinaryExpressionAST *) {}

    virtual bool visit(UnaryExpressionAST *) { return true; }
    virtual void endVisit(UnaryExpressionAST *) {}

    virtual bool visit(TernaryExpressionAST *) { return true; }
    virtual void endVisit(TernaryExpressionAST *) {}

    virtual bool visit(AssignmentExpressionAST *) { return true; }
    virtual void endVisit(AssignmentExpressionAST *) {}

    virtual bool visit(MemberAccessExpressionAST *) { return true; }
    virtual void endVisit(MemberAccessExpressionAST *) {}

    virtual bool visit(FunctionCallExpressionAST *) { return true; }
    virtual void endVisit(FunctionCallExpressionAST *) {}

    virtual bool visit(FunctionIdentifierAST *) { return true; }
    virtual void endVisit(FunctionIdentifierAST *) {}

    virtual bool visit(DeclarationExpressionAST *) { return true; }
    virtual void endVisit(DeclarationExpressionAST *) {}

    virtual bool visit(ExpressionStatementAST *) { return true; }
    virtual void endVisit(ExpressionStatementAST *) {}

    virtual bool visit(CompoundStatementAST *) { return true; }
    virtual void endVisit(CompoundStatementAST *) {}

    virtual bool visit(IfStatementAST *) { return true; }
    virtual void endVisit(IfStatementAST *) {}

    virtual bool visit(WhileStatementAST *) { return true; }
    virtual void endVisit(WhileStatementAST *) {}

    virtual bool visit(DoStatementAST *) { return true; }
    virtual void endVisit(DoStatementAST *) {}

    virtual bool visit(ForStatementAST *) { return true; }
    virtual void endVisit(ForStatementAST *) {}

    virtual bool visit(JumpStatementAST *) { return true; }
    virtual void endVisit(JumpStatementAST *) {}

    virtual bool visit(ReturnStatementAST *) { return true; }
    virtual void endVisit(ReturnStatementAST *) {}

    virtual bool visit(SwitchStatementAST *) { return true; }
    virtual void endVisit(SwitchStatementAST *) {}

    virtual bool visit(CaseLabelStatementAST *) { return true; }
    virtual void endVisit(CaseLabelStatementAST *) {}

    virtual bool visit(DeclarationStatementAST *) { return true; }
    virtual void endVisit(DeclarationStatementAST *) {}

    virtual bool visit(BasicTypeAST *) { return true; }
    virtual void endVisit(BasicTypeAST *) {}

    virtual bool visit(NamedTypeAST *) { return true; }
    virtual void endVisit(NamedTypeAST *) {}

    virtual bool visit(ArrayTypeAST *) { return true; }
    virtual void endVisit(ArrayTypeAST *) {}

    virtual bool visit(StructTypeAST *) { return true; }
    virtual void endVisit(StructTypeAST *) {}

    virtual bool visit(StructTypeAST::Field *) { return true; }
    virtual void endVisit(StructTypeAST::Field *) {}

    virtual bool visit(LayoutQualifierAST *) { return true; }
    virtual void endVisit(LayoutQualifierAST *) {}

    virtual bool visit(QualifiedTypeAST *) { return true; }
    virtual void endVisit(QualifiedTypeAST *) {}

    virtual bool visit(PrecisionDeclarationAST *) { return true; }
    virtual void endVisit(PrecisionDeclarationAST *) {}

    virtual bool visit(ParameterDeclarationAST *) { return true; }
    virtual void endVisit(ParameterDeclarationAST *) {}

    virtual bool visit(VariableDeclarationAST *) { return true; }
    virtual void endVisit(VariableDeclarationAST *) {}

    virtual bool visit(TypeDeclarationAST *) { return true; }
    virtual void endVisit(TypeDeclarationAST *) {}

    virtual bool visit(TypeAndVariableDeclarationAST *) { return true; }
    virtual void endVisit(TypeAndVariableDeclarationAST *) {}

    virtual bool visit(InvariantDeclarationAST *) { return true; }
    virtual void endVisit(InvariantDeclarationAST *) {}

    virtual bool visit(InitDeclarationAST *) { return true; }
    virtual void endVisit(InitDeclarationAST *) {}

    virtual bool visit(FunctionDeclarationAST *) { return true; }
    virtual void endVisit(FunctionDeclarationAST *) {}

    virtual bool visit(InterfaceBlockAST *) { return true; }
    virtual void endVisit(InterfaceBlockAST *) {}

};

} // namespace GLSL
