10-IO.md

IO

Package io implements interfaces and helpers.

Files

Regular file type is *os.File

Interfaces

• The bigger the interface, the weaker the abstraction

More of theses at https://go-proverbs.github.io/

Exemplified in package io: Generic I/O with io.Reader and io.Writer and a few other interfaces.

https://golang.org/pkg/io/

	R	W	C	S
io.Reader	x
io.Writer		x
io.Closer			x
io.Seeker				x
io.ReadWriter	x	x
io.ReadCloser	x		x
io.ReadSeeker	x			x
io.WriteCloser		x	x
io.WriteSeeker		x		x
io.ReadWriteCloser	x	x	x
io.ReadWriteSeeker	x	x		x

Libraries might implement missing pieces, e.g.

• ReadSeekCloser, ReaderAtCloser

From: github.com/go4org/go4.