Method seek_and_rewrite

src/program/transform.rs:302–316

(&self, pos: usize, len: usize, str: &str)

    }

    pub fn seek_and_rewrite(&self, pos: usize, len: usize, str: &str) -> Result<()> {
        let mut f = std::fs::OpenOptions::new()
            .write(true)
            .read(true)
            .open(&self.src_file)?;
        f.seek(std::io::SeekFrom::Start((pos + len) as u64))?;
        let mut buf = Vec::new();
        f.read_to_end(&mut buf)?;
        let mut str = str.as_bytes().to_vec();
        str.extend(buf);
        f.set_len((pos + str.len()) as u64)?;
        f.seek(std::io::SeekFrom::Start(pos as u64))?;
        f.write_all(&str)?;
        Ok(())
    }

    pub fn get_new_visitor(&mut self) -> Result<Visitor> {
        let ast = self.update_ast()?;