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// Protocol Buffers - Google's data interchange format
// Copyright 2023 Google LLC. All rights reserved.
//
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file or at
// https://developers.google.com/open-source/licenses/bsd
// upb_Encode: parsing from a upb_Message using a upb_MiniTable.
#ifndef UPB_WIRE_ENCODE_H_
#define UPB_WIRE_ENCODE_H_
#include <stddef.h>
#include <stdint.h>
#include "upb/mem/arena.h"
#include "upb/mini_table/message.h"
// Must be last.
#include "upb/port/def.inc"
#ifdef __cplusplus
extern "C" {
#endif
enum {
/* If set, the results of serializing will be deterministic across all
* instances of this binary. There are no guarantees across different
* binary builds.
*
* If your proto contains maps, the encoder will need to malloc()/free()
* memory during encode. */
kUpb_EncodeOption_Deterministic = 1,
// When set, unknown fields are not printed.
kUpb_EncodeOption_SkipUnknown = 2,
// When set, the encode will fail if any required fields are missing.
kUpb_EncodeOption_CheckRequired = 4,
};
typedef enum {
kUpb_EncodeStatus_Ok = 0,
kUpb_EncodeStatus_OutOfMemory = 1, // Arena alloc failed
kUpb_EncodeStatus_MaxDepthExceeded = 2,
// kUpb_EncodeOption_CheckRequired failed but the parse otherwise succeeded.
kUpb_EncodeStatus_MissingRequired = 3,
} upb_EncodeStatus;
UPB_INLINE uint32_t upb_EncodeOptions_MaxDepth(uint16_t depth) {
return (uint32_t)depth << 16;
}
UPB_INLINE uint16_t upb_EncodeOptions_GetMaxDepth(uint32_t options) {
return options >> 16;
}
// Enforce an upper bound on recursion depth.
UPB_INLINE int upb_Encode_LimitDepth(uint32_t encode_options, uint32_t limit) {
uint32_t max_depth = upb_EncodeOptions_GetMaxDepth(encode_options);
if (max_depth > limit) max_depth = limit;
return upb_EncodeOptions_MaxDepth(max_depth) | (encode_options & 0xffff);
}
UPB_API upb_EncodeStatus upb_Encode(const void* msg, const upb_MiniTable* l,
int options, upb_Arena* arena, char** buf,
size_t* size);
#ifdef __cplusplus
} /* extern "C" */
#endif
#include "upb/port/undef.inc"
#endif /* UPB_WIRE_ENCODE_H_ */
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