#include "ast.hpp"

namespace Sass {

  #define IMPLEMENT_BASE_CAST(T) \

  template<> \

  T* Cast(AST_Node* ptr) { \

    return dynamic_cast<T*>(ptr); \

  }; \

  \

  template<> \

  const T* Cast(const AST_Node* ptr) { \

    return dynamic_cast<const T*>(ptr); \

  }; \

  IMPLEMENT_BASE_CAST(AST_Node)

  IMPLEMENT_BASE_CAST(Expression)

  IMPLEMENT_BASE_CAST(Statement)

  IMPLEMENT_BASE_CAST(Has_Block)

  IMPLEMENT_BASE_CAST(PreValue)

  IMPLEMENT_BASE_CAST(Value)

  IMPLEMENT_BASE_CAST(List)

  IMPLEMENT_BASE_CAST(String)

  IMPLEMENT_BASE_CAST(String_Constant)

  IMPLEMENT_BASE_CAST(Supports_Condition)

  IMPLEMENT_BASE_CAST(Selector)

  IMPLEMENT_BASE_CAST(Simple_Selector)

}