fn start_seek()

in src/buffered.rs [137:163]

• 27 lines of code
• 3 McCabe index (conditional complexity)

    fn start_seek(mut self: Pin<&mut Self>, position: SeekFrom) -> std::io::Result<()> {
        self.cursor = match position {
            SeekFrom::Start(offset) => offset,
            SeekFrom::End(offset) => checked_add_signed(self.size, offset).ok_or_else(|| {
                Error::new(
                    ErrorKind::InvalidInput,
                    format!(
                        "Seeking {offset} from end of {} byte file would result in overflow",
                        self.size
                    ),
                )
            })?,
            SeekFrom::Current(offset) => {
                checked_add_signed(self.cursor, offset).ok_or_else(|| {
                    Error::new(
                        ErrorKind::InvalidInput,
                        format!(
                            "Seeking {offset} from current offset of {} would result in overflow",
                            self.cursor
                        ),
                    )
                })?
            }
        };
        self.buffer = Buffer::Empty;
        Ok(())
    }