#ifndef SASS_REMOVE_PLACEHOLDERS_H

#define SASS_REMOVE_PLACEHOLDERS_H

#pragma once

#include "ast.hpp"

#include "operation.hpp"

namespace Sass {

    class Remove_Placeholders : public Operation_CRTP<void, Remove_Placeholders> {

        void fallback_impl(AST_Node_Ptr n) {}

    public:

      Selector_List_Ptr remove_placeholders(Selector_List_Ptr);

    public:

        Remove_Placeholders();

        ~Remove_Placeholders() { }

        void operator()(Block_Ptr);

        void operator()(Ruleset_Ptr);

        void operator()(Media_Block_Ptr);

        void operator()(Supports_Block_Ptr);

        void operator()(Directive_Ptr);

        template <typename U>

        void fallback(U x) { return fallback_impl(x); }

    };

}

#endif