attribute_mapper_ast_path_eval.hpp

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 * # License
 * <b>Copyright 2021 Silicon Laboratories Inc. www.silabs.com</b>
 ******************************************************************************
 * The licensor of this software is Silicon Laboratories Inc. Your use of this
 * software is governed by the terms of Silicon Labs Master Software License
 * Agreement (MSLA) available at
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#ifndef ATTRIBUTE_MAPPER_AST_PATH_EVAL_HPP
#define ATTRIBUTE_MAPPER_AST_PATH_EVAL_HPP
 
#include <string>
#include <map>
#include <float.h>
#include <boost/optional.hpp>
#include "attribute.hpp"
#include "attribute_mapper_ast.hpp"
 
namespace ast
{
struct nil;
struct signed_;
struct expression;
struct condition;
struct attribute;
struct attribute_path_subscript;
struct mapping;
struct assignment;
 
struct attribute_path_eval {
  explicit attribute_path_eval(const attribute_store::attribute context) :
    context(context)
  {}
 
  attribute_store::attribute operator()(const ast::operand &oper);
 
  attribute_store::attribute operator()(const nil &nul);
 
  attribute_store::attribute operator()(const attribute_store_type_t type_id);
 
  attribute_store::attribute
    operator()(const attribute_path_subscript &subscript) const;
 
  attribute_store::attribute operator()(
  const std::vector<attribute_path_element> &paths);
 
  inline bool all_elements_parsed() const
  {
    return elements_left == 0;
  }
 
  inline bool last_token_failed() const
  {
    return elements_left == 1;
  }
 
  inline attribute_store_type_t last_fail_type() const
  {
    return last_type_id;
  }
 
  size_t get_depth(const std::vector<attribute_path_element> &paths) const;
 
  private:
  //ID of last type passed
  attribute_store_type_t last_type_id = 0;
  int elements_left                   = 0;
  attribute_store::attribute context  = 0;
};
 
}  // namespace ast
 
#endif  //ATTRIBUTE_MAPPER_AST_EVAL_HPP