json_encode.h

Go to the documentation of this file.

/*
 * 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
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       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
 * ARE DISCLAIMED. IN NO EVENT SHALL Google LLC BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
#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_ */