pub struct BorrowedCursor<'a> { /* private fields */ }core_io_borrowed_buf)Expand description
A writeable view of the unfilled portion of a BorrowedBuf.
The unfilled portion consists of an initialized and an uninitialized part; see BorrowedBuf
for details.
Data can be written directly to the cursor by using append or
indirectly by getting a slice of part or all of the cursor and writing into the slice. In the
indirect case, the caller must call advance after writing to inform
the cursor how many bytes have been written.
Once data is written to the cursor, it becomes part of the filled portion of the underlying
BorrowedBuf and can no longer be accessed or re-written by the cursor. I.e., the cursor tracks
the unfilled part of the underlying BorrowedBuf.
The lifetime 'a is a bound on the lifetime of the underlying buffer (which means it is a bound
on the data in that buffer by transitivity).