protobuf/upb/json_encode.h

/*
 * Copyright (c) 2009-2021, Google LLC
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
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 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of Google LLC nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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 */

#ifndef UPB_JSONENCODE_H_
#define UPB_JSONENCODE_H_

#include "upb/def.h"

#ifdef __cplusplus
extern "C" {
#endif

enum {
  /* When set, emits 0/default values.  TODO(haberman): proto3 only? */
  upb_JsonEncode_EmitDefaults = 1,

  /* When set, use normal (snake_caes) field names instead of JSON (camelCase)
     names. */
  upb_JsonEncode_UseProtoNames = 2
};

/* Encodes the given |msg| to JSON format.  The message's reflection is given in
 * |m|.  The symtab in |symtab| is used to find extensions (if NULL, extensions
 * will not be printed).
 *
 * Output is placed in the given buffer, and always NULL-terminated.  The output
 * size (excluding NULL) is returned.  This means that a return value >= |size|
 * implies that the output was truncated.  (These are the same semantics as
 * snprintf()). */
size_t upb_JsonEncode(const upb_Message* msg, const upb_MessageDef* m,
                      const upb_DefPool* ext_pool, int options, char* buf,
                      size_t size, upb_Status* status);

#ifdef __cplusplus
} /* extern "C" */
#endif

#endif /* UPB_JSONENCODE_H_ */