text: /* <orly/expr/sign.h>
  
     TODO
  
     Copyright 2010-2014 OrlyAtomics, Inc.
  
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.
     You may obtain a copy of the License at
  
       http://www.apache.org/licenses/LICENSE-2.0
  
     Unless required by applicable law or agreed to in writing, software
     distributed under the License is distributed on an "AS IS" BASIS,
     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     See the License for the specific language governing permissions and
     limitations under the License. */
  
  #pragma once
  
  #include <base/class_traits.h>
  #include <orly/expr/unary.h>
  
  namespace Orly {
  
    namespace Expr {
  
      class TNegative
          : public TUnary {
        NO_COPY(TNegative);
        public:
  
        typedef std::shared_ptr<TNegative> TPtr;
  
        static TExpr::TPtr New(const TExpr::TPtr &expr, const TPosRange &pos_range);
  
        virtual void Accept(const TVisitor &visitor) const;
  
        virtual Type::TType GetType() const;
  
        private:
  
        TNegative(const TExpr::TPtr &expr, const TPosRange &pos_range);
  
      };  // TNegative
  
      class TPositive
          : public TUnary {
        NO_COPY(TPositive);
        public:
  
        typedef std::shared_ptr<TPositive> TPtr;
  
        static TExpr::TPtr New(const TExpr::TPtr &expr, const TPosRange &pos_range);
  
        virtual void Accept(const TVisitor &visitor) const;
  
        virtual Type::TType GetType() const;
  
        private:
  
        TPositive(const TExpr::TPtr &expr, const TPosRange &pos_range);
  
      };  // TPositive
  
    }  // Expr
  
  }  // Orly
  