upb/wire/internal/decoder.c

// 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

#include "upb/wire/internal/decoder.h"

#include "upb/message/internal/accessors.h"
#include "upb/message/message.h"
#include "upb/mini_table/message.h"
#include "upb/wire/decode.h"
#include "upb/wire/eps_copy_input_stream.h"

// Must be last.
#include "upb/port/def.inc"

UPB_NOINLINE
const char* _upb_Decoder_CheckRequired(upb_Decoder* d, const char* ptr,
                                       const upb_Message* msg,
                                       const upb_MiniTable* m) {
  UPB_ASSERT(m->UPB_PRIVATE(required_count));
  if (UPB_UNLIKELY(d->options & kUpb_DecodeOption_CheckRequired)) {
    d->missing_required =
        !UPB_PRIVATE(_upb_Message_IsInitializedShallow)(msg, m);
  }
  return ptr;
}

UPB_NORETURN void* _upb_Decoder_ErrorJmp(upb_Decoder* d,
                                         upb_DecodeStatus status) {
  UPB_ASSERT(status != kUpb_DecodeStatus_Ok);
  d->status = status;
  UPB_LONGJMP(d->err, 1);
}

UPB_NOINLINE
const char* _upb_Decoder_IsDoneFallback(upb_EpsCopyInputStream* e,
                                        const char* ptr, int overrun) {
  return _upb_EpsCopyInputStream_IsDoneFallbackInline(
      e, ptr, overrun, _upb_Decoder_BufferFlipCallback);
}