compiler/cpp/src/parse/t_field.h

// Copyright (c) 2006- Facebook
// Distributed under the Thrift Software License
//
// See accompanying file LICENSE or visit the Thrift site at:
// http://developers.facebook.com/thrift/

#ifndef T_FIELD_H
#define T_FIELD_H

#include <string>
#include <boost/lexical_cast.hpp>

#include "t_doc.h"

// Forward declare for xsd_attrs
class t_struct;

/**
 * Class to represent a field in a thrift structure. A field has a data type,
 * a symbolic name, and a numeric identifier.
 *
 * @author Mark Slee <mcslee@facebook.com>
 */
class t_field : public t_doc {
 public:
  t_field(t_type* type, std::string name) :
    type_(type),
    name_(name),
    key_(0),
    value_(NULL),
    xsd_optional_(false),
    xsd_nillable_(false),
    xsd_attrs_(NULL) {}

  t_field(t_type* type, std::string name, int32_t key) :
    type_(type),
    name_(name),
    key_(key),
    req_(T_OPT_IN_REQ_OUT),
    value_(NULL),
    xsd_optional_(false),
    xsd_nillable_(false),
    xsd_attrs_(NULL) {}

  ~t_field() {}

  t_type* get_type() const {
    return type_;
  }

  const std::string& get_name() const {
    return name_;
  }

  int32_t get_key() const {
    return key_;
  }

  enum e_req {
    T_REQUIRED,
    T_OPTIONAL,
    T_OPT_IN_REQ_OUT,
  };

  void set_req(e_req req) {
    req_ = req;
  }

  e_req get_req() const {
    return req_;
  }

  void set_value(t_const_value* value) {
    value_ = value;
  }

  t_const_value* get_value() {
    return value_;
  }

  void set_xsd_optional(bool xsd_optional) {
    xsd_optional_ = xsd_optional;
  }

  bool get_xsd_optional() const {
    return xsd_optional_;
  }

  void set_xsd_nillable(bool xsd_nillable) {
    xsd_nillable_ = xsd_nillable;
  }

  bool get_xsd_nillable() const {
    return xsd_nillable_;
  }

  void set_xsd_attrs(t_struct* xsd_attrs) {
    xsd_attrs_ = xsd_attrs;
  }

  t_struct* get_xsd_attrs() {
    return xsd_attrs_;
  }

  // This is not the same function as t_type::get_fingerprint_material,
  // but it does the same thing.
  std::string get_fingerprint_material() const {
    return boost::lexical_cast<std::string>(key_) + ":" +
      ((req_ == T_OPTIONAL) ? "opt-" : "") +
      type_->get_fingerprint_material();
  }

 private:
  t_type* type_;
  std::string name_;
  int32_t key_;
  e_req req_;
  t_const_value* value_;

  bool xsd_optional_;
  bool xsd_nillable_;
  t_struct* xsd_attrs_;

};

#endif