static AZ_NODISCARD bool _az_is_appending_container_end_valid()

in sdk/src/azure/core/az_json_writer.c [158:199]

• 30 lines of code
• 6 McCabe index (conditional complexity)

static AZ_NODISCARD bool _az_is_appending_container_end_valid(
    az_json_writer const* json_writer,
    uint8_t byte)
{
  _az_PRECONDITION_NOT_NULL(json_writer);

  az_json_token_kind kind = json_writer->_internal.token_kind;

  // Cannot write an end of a container without a matching start.
  // This includes writing the end token as the first token in the JSON or right after a property
  // name.
  if (json_writer->_internal.bit_stack._internal.current_depth <= 0
      || kind == AZ_JSON_TOKEN_PROPERTY_NAME)
  {
    return false;
  }

  _az_json_stack_item stack_item = _az_json_stack_peek(&json_writer->_internal.bit_stack);

  if (byte == ']')
  {
    // If inside a JSON object, then appending an end bracket is invalid:
    if (stack_item)
    {
      _az_PRECONDITION(kind != AZ_JSON_TOKEN_NONE);
      return false;
    }
  }
  else
  {
    _az_PRECONDITION(byte == '}');

    // If not inside a JSON object, then appending an end brace is invalid:
    if (!stack_item)
    {
      return false;
    }
  }

  // JSON writer state is valid and an end of a container can be appended.
  return true;
}