An abstract interface which when implemented provides an interface to read bytes into an array buffer synchronously.
Methods
readSync(p: Uint8Array): number | null
Reads up to p.byteLength bytes into p. It resolves to the number
of bytes read (0 < n <= p.byteLength) and rejects if any error
encountered. Even if readSync() returns n < p.byteLength, it may use
all of p as scratch space during the call. If some data is available
but not p.byteLength bytes, readSync() conventionally returns what is
available instead of waiting for more.
When readSync() encounters end-of-file condition, it returns EOF
(null).
When readSync() encounters an error, it throws with an error.
Callers should always process the n > 0 bytes returned before
considering the EOF (null). Doing so correctly handles I/O errors that
happen after reading some bytes and also both of the allowed EOF
behaviors.
Implementations should not retain a reference to p.
Use
itereateReaderSync
from from
std/streams/iterate_reader.ts
to turn a ReaderSync into an Iterator.