#ifndef COMPILER_RULES_METADATA_H_
#define COMPILER_RULES_METADATA_H_

#include <string>
#include <map>
#include "tree_sitter/compiler.h"
#include "compiler/rules/rule.h"

namespace tree_sitter {
namespace rules {

enum MetadataKey {
  START_TOKEN,
  PRECEDENCE,
  IS_TOKEN,
  DESCRIPTION,
  ASSOCIATIVITY,
};

const Associativity AssociativityUnspecified = (Associativity)0;

class Metadata : public Rule {
 public:
  Metadata(rule_ptr rule, std::map<MetadataKey, int> value);

  bool operator==(const Rule &other) const;
  size_t hash_code() const;
  rule_ptr copy() const;
  std::string to_string() const;
  void accept(Visitor *visitor) const;
  int value_for(MetadataKey key) const;

  const rule_ptr rule;
  const std::map<MetadataKey, int> value;
};

}  // namespace rules
}  // namespace tree_sitter

#endif  // COMPILER_RULES_METADATA_H_