tanvirraj · January 25, 2023 16:05 · Sep 14, 2017 · Sep 14, 2017 · Sep 14, 2017
diff --git a/go-stdlib-interface-selected.md b/go-stdlib-interface-selected.md
@@ -876,7 +876,7 @@ go[0-9].[0-9].[0-9])
     ;;
 esac
 
-echo "# A collection of interfaces in Go's standard library"
+echo '# Go (Golang) Standard Library Interfaces (Selected)'
 echo
 echo "This is not an exhaustive list of all interfaces in Go's standard library."
 echo 'I only list those I think are important.'

diff --git a/go-stdlib-interface-selected.md b/go-stdlib-interface-selected.md
@@ -1,4 +1,4 @@
-# A collection of interfaces in Go's standard library
+# Go (Golang) Standard Library Interfaces (Selected)
 
 This is not an exhaustive list of all interfaces in Go's standard library.
 I only list those I think are important.

diff --git a/go-stdlib-interface-selected.md b/go-stdlib-interface-selected.md
@@ -0,0 +1,918 @@
+# A collection of interfaces in Go's standard library
+
+This is not an exhaustive list of all interfaces in Go's standard library.
+I only list those I think are important.
+Interfaces defined in frequently used packages (like `io`, `fmt`) are included.
+Interfaces that have significant importance are also included.
+
+All of the following information is based on `go version go1.8.3 darwin/amd64`.
+
+
+
+### (builtin)
+
+#### error [[doc](https://golang.org/pkg/builtin/#error)] [[src1](https://golang.org/src/builtin/builtin.go#L254)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/builtin/builtin.go#L254-L256)]
+
+```go
+type error interface {
+	Error() string
+}
+```
+
+
+
+### package `runtime`
+
+#### Error [[doc](https://golang.org/pkg/runtime/#Error)] [[src1](https://golang.org/src/runtime/error.go#L8)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/runtime/error.go#L8-L16)]
+
+```go
+type Error interface {
+	error
+	RuntimeError()
+}
+```
+
+
+
+### package `math/rand`
+
+#### Source [[doc](https://golang.org/pkg/math/rand/#Source)] [[src1](https://golang.org/src/math/rand/rand.go#L21)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/math/rand/rand.go#L21-L24)]
+
+```go
+type Source interface {
+	Int63() int64
+	Seed(seed int64)
+}
+```
+
+#### Source64 [[doc](https://golang.org/pkg/math/rand/#Source64)] [[src1](https://golang.org/src/math/rand/rand.go#L32)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/math/rand/rand.go#L32-L35)]
+
+```go
+type Source64 interface {
+	Source
+	Uint64() uint64
+}
+```
+
+
+
+### package `sort`
+
+#### Interface [[doc](https://golang.org/pkg/sort/#Interface)] [[src1](https://golang.org/src/sort/sort.go#L16)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/sort/sort.go#L16-L24)]
+
+```go
+type Interface interface {
+	Len() int
+	Less(i, j int) bool
+	Swap(i, j int)
+}
+```
+
+
+
+### package `container/heap`
+
+#### Interface [[doc](https://golang.org/pkg/container/heap/#Interface)] [[src1](https://golang.org/src/container/heap/heap.go#L30)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/container/heap/heap.go#L30-L34)]
+
+```go
+type Interface interface {
+	sort.Interface
+	Push(x interface{})
+	Pop() interface{}
+}
+```
+
+
+
+### package `io`
+
+#### Reader [[doc](https://golang.org/pkg/io/#Reader)] [[src1](https://golang.org/src/io/io.go#L77)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/io/io.go#L77-L79)]
+
+```go
+type Reader interface {
+	Read(p []byte) (n int, err error)
+}
+```
+
+#### Writer [[doc](https://golang.org/pkg/io/#Writer)] [[src1](https://golang.org/src/io/io.go#L90)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/io/io.go#L90-L92)]
+
+```go
+type Writer interface {
+	Write(p []byte) (n int, err error)
+}
+```
+
+#### Closer [[doc](https://golang.org/pkg/io/#Closer)] [[src1](https://golang.org/src/io/io.go#L98)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/io/io.go#L98-L100)]
+
+```go
+type Closer interface {
+	Close() error
+}
+```
+
+#### Seeker [[doc](https://golang.org/pkg/io/#Seeker)] [[src1](https://golang.org/src/io/io.go#L115)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/io/io.go#L115-L117)]
+
+```go
+type Seeker interface {
+	Seek(offset int64, whence int) (int64, error)
+}
+```
+
+#### ReadWriter [[doc](https://golang.org/pkg/io/#ReadWriter)] [[src1](https://golang.org/src/io/io.go#L120)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/io/io.go#L120-L123)]
+
+```go
+type ReadWriter interface {
+	Reader
+	Writer
+}
+```
+
+#### ReadCloser [[doc](https://golang.org/pkg/io/#ReadCloser)] [[src1](https://golang.org/src/io/io.go#L126)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/io/io.go#L126-L129)]
+
+```go
+type ReadCloser interface {
+	Reader
+	Closer
+}
+```
+
+#### WriteCloser [[doc](https://golang.org/pkg/io/#WriteCloser)] [[src1](https://golang.org/src/io/io.go#L132)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/io/io.go#L132-L135)]
+
+```go
+type WriteCloser interface {
+	Writer
+	Closer
+}
+```
+
+#### ReadWriteCloser [[doc](https://golang.org/pkg/io/#ReadWriteCloser)] [[src1](https://golang.org/src/io/io.go#L138)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/io/io.go#L138-L142)]
+
+```go
+type ReadWriteCloser interface {
+	Reader
+	Writer
+	Closer
+}
+```
+
+#### ReadSeeker [[doc](https://golang.org/pkg/io/#ReadSeeker)] [[src1](https://golang.org/src/io/io.go#L145)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/io/io.go#L145-L148)]
+
+```go
+type ReadSeeker interface {
+	Reader
+	Seeker
+}
+```
+
+#### WriteSeeker [[doc](https://golang.org/pkg/io/#WriteSeeker)] [[src1](https://golang.org/src/io/io.go#L151)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/io/io.go#L151-L154)]
+
+```go
+type WriteSeeker interface {
+	Writer
+	Seeker
+}
+```
+
+#### ReadWriteSeeker [[doc](https://golang.org/pkg/io/#ReadWriteSeeker)] [[src1](https://golang.org/src/io/io.go#L157)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/io/io.go#L157-L161)]
+
+```go
+type ReadWriteSeeker interface {
+	Reader
+	Writer
+	Seeker
+}
+```
+
+#### ReaderFrom [[doc](https://golang.org/pkg/io/#ReaderFrom)] [[src1](https://golang.org/src/io/io.go#L170)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/io/io.go#L170-L172)]
+
+```go
+type ReaderFrom interface {
+	ReadFrom(r Reader) (n int64, err error)
+}
+```
+
+#### WriterTo [[doc](https://golang.org/pkg/io/#WriterTo)] [[src1](https://golang.org/src/io/io.go#L181)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/io/io.go#L181-L183)]
+
+```go
+type WriterTo interface {
+	WriteTo(w Writer) (n int64, err error)
+}
+```
+
+#### ReaderAt [[doc](https://golang.org/pkg/io/#ReaderAt)] [[src1](https://golang.org/src/io/io.go#L211)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/io/io.go#L211-L213)]
+
+```go
+type ReaderAt interface {
+	ReadAt(p []byte, off int64) (n int, err error)
+}
+```
+
+#### WriterAt [[doc](https://golang.org/pkg/io/#WriterAt)] [[src1](https://golang.org/src/io/io.go#L230)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/io/io.go#L230-L232)]
+
+```go
+type WriterAt interface {
+	WriteAt(p []byte, off int64) (n int, err error)
+}
+```
+
+#### ByteReader [[doc](https://golang.org/pkg/io/#ByteReader)] [[src1](https://golang.org/src/io/io.go#L237)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/io/io.go#L237-L239)]
+
+```go
+type ByteReader interface {
+	ReadByte() (byte, error)
+}
+```
+
+#### ByteScanner [[doc](https://golang.org/pkg/io/#ByteScanner)] [[src1](https://golang.org/src/io/io.go#L248)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/io/io.go#L248-L251)]
+
+```go
+type ByteScanner interface {
+	ByteReader
+	UnreadByte() error
+}
+```
+
+#### ByteWriter [[doc](https://golang.org/pkg/io/#ByteWriter)] [[src1](https://golang.org/src/io/io.go#L254)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/io/io.go#L254-L256)]
+
+```go
+type ByteWriter interface {
+	WriteByte(c byte) error
+}
+```
+
+#### RuneReader [[doc](https://golang.org/pkg/io/#RuneReader)] [[src1](https://golang.org/src/io/io.go#L263)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/io/io.go#L263-L265)]
+
+```go
+type RuneReader interface {
+	ReadRune() (r rune, size int, err error)
+}
+```
+
+#### RuneScanner [[doc](https://golang.org/pkg/io/#RuneScanner)] [[src1](https://golang.org/src/io/io.go#L274)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/io/io.go#L274-L277)]
+
+```go
+type RuneScanner interface {
+	RuneReader
+	UnreadRune() error
+}
+```
+
+
+
+### package `fmt`
+
+#### State [[doc](https://golang.org/pkg/fmt/#State)] [[src1](https://golang.org/src/fmt/print.go#L38)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/fmt/print.go#L38-L48)]
+
+```go
+type State interface {
+	Write(b []byte) (n int, err error)
+	Width() (wid int, ok bool)
+	Precision() (prec int, ok bool)
+	Flag(c int) bool
+}
+```
+
+#### Formatter [[doc](https://golang.org/pkg/fmt/#Formatter)] [[src1](https://golang.org/src/fmt/print.go#L53)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/fmt/print.go#L53-L55)]
+
+```go
+type Formatter interface {
+	Format(f State, c rune)
+}
+```
+
+#### Stringer [[doc](https://golang.org/pkg/fmt/#Stringer)] [[src1](https://golang.org/src/fmt/print.go#L62)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/fmt/print.go#L62-L64)]
+
+```go
+type Stringer interface {
+	String() string
+}
+```
+
+#### GoStringer [[doc](https://golang.org/pkg/fmt/#GoStringer)] [[src1](https://golang.org/src/fmt/print.go#L70)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/fmt/print.go#L70-L72)]
+
+```go
+type GoStringer interface {
+	GoString() string
+}
+```
+
+#### ScanState [[doc](https://golang.org/pkg/fmt/#ScanState)] [[src1](https://golang.org/src/fmt/scan.go#L21)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/fmt/scan.go#L21-L49)]
+
+```go
+type ScanState interface {
+	ReadRune() (r rune, size int, err error)
+	UnreadRune() error
+	SkipSpace()
+	Token(skipSpace bool, f func(rune) bool) (token []byte, err error)
+	Width() (wid int, ok bool)
+	Read(buf []byte) (n int, err error)
+}
+```
+
+#### Scanner [[doc](https://golang.org/pkg/fmt/#Scanner)] [[src1](https://golang.org/src/fmt/scan.go#L55)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/fmt/scan.go#L55-L57)]
+
+```go
+type Scanner interface {
+	Scan(state ScanState, verb rune) error
+}
+```
+
+
+
+### package `encoding`
+
+#### BinaryMarshaler [[doc](https://golang.org/pkg/encoding/#BinaryMarshaler)] [[src1](https://golang.org/src/encoding/encoding.go#L18)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/encoding/encoding.go#L18-L20)]
+
+```go
+type BinaryMarshaler interface {
+	MarshalBinary() (data []byte, err error)
+}
+```
+
+#### BinaryUnmarshaler [[doc](https://golang.org/pkg/encoding/#BinaryUnmarshaler)] [[src1](https://golang.org/src/encoding/encoding.go#L28)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/encoding/encoding.go#L28-L30)]
+
+```go
+type BinaryUnmarshaler interface {
+	UnmarshalBinary(data []byte) error
+}
+```
+
+#### TextMarshaler [[doc](https://golang.org/pkg/encoding/#TextMarshaler)] [[src1](https://golang.org/src/encoding/encoding.go#L36)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/encoding/encoding.go#L36-L38)]
+
+```go
+type TextMarshaler interface {
+	MarshalText() (text []byte, err error)
+}
+```
+
+#### TextUnmarshaler [[doc](https://golang.org/pkg/encoding/#TextUnmarshaler)] [[src1](https://golang.org/src/encoding/encoding.go#L46)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/encoding/encoding.go#L46-L48)]
+
+```go
+type TextUnmarshaler interface {
+	UnmarshalText(text []byte) error
+}
+```
+
+
+
+### package `net`
+
+#### Addr [[doc](https://golang.org/pkg/net/#Addr)] [[src1](https://golang.org/src/net/net.go#L109)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/net/net.go#L109-L112)]
+
+```go
+type Addr interface {
+	Network() string
+	String() string
+}
+```
+
+#### Conn [[doc](https://golang.org/pkg/net/#Conn)] [[src1](https://golang.org/src/net/net.go#L117)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/net/net.go#L117-L166)]
+
+```go
+type Conn interface {
+	Read(b []byte) (n int, err error)
+	Write(b []byte) (n int, err error)
+	Close() error
+	LocalAddr() Addr
+	RemoteAddr() Addr
+	SetDeadline(t time.Time) error
+	SetReadDeadline(t time.Time) error
+	SetWriteDeadline(t time.Time) error
+}
+```
+
+#### PacketConn [[doc](https://golang.org/pkg/net/#PacketConn)] [[src1](https://golang.org/src/net/net.go#L307)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/net/net.go#L307-L359)]
+
+```go
+type PacketConn interface {
+	ReadFrom(b []byte) (n int, addr Addr, err error)
+	WriteTo(b []byte, addr Addr) (n int, err error)
+	Close() error
+	LocalAddr() Addr
+	SetDeadline(t time.Time) error
+	SetReadDeadline(t time.Time) error
+	SetWriteDeadline(t time.Time) error
+}
+```
+
+#### Listener [[doc](https://golang.org/pkg/net/#Listener)] [[src1](https://golang.org/src/net/net.go#L366)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/net/net.go#L366-L376)]
+
+```go
+type Listener interface {
+	Accept() (Conn, error)
+	Close() error
+	Addr() Addr
+}
+```
+
+#### Error [[doc](https://golang.org/pkg/net/#Error)] [[src1](https://golang.org/src/net/net.go#L379)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/net/net.go#L379-L383)]
+
+```go
+type Error interface {
+	error
+	Timeout() bool
+	Temporary() bool
+}
+```
+
+
+
+### package `net/http`
+
+#### RoundTripper [[doc](https://golang.org/pkg/net/http/#RoundTripper)] [[src1](https://golang.org/src/net/http/client.go#L117)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/net/http/client.go#L117-L140)]
+
+```go
+type RoundTripper interface {
+	RoundTrip(*Request) (*Response, error)
+}
+```
+
+#### FileSystem [[doc](https://golang.org/pkg/net/http/#FileSystem)] [[src1](https://golang.org/src/net/http/fs.go#L55)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/net/http/fs.go#L55-L57)]
+
+```go
+type FileSystem interface {
+	Open(name string) (File, error)
+}
+```
+
+#### File [[doc](https://golang.org/pkg/net/http/#File)] [[src1](https://golang.org/src/net/http/fs.go#L63)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/net/http/fs.go#L63-L69)]
+
+```go
+type File interface {
+	io.Closer
+	io.Reader
+	io.Seeker
+	Readdir(count int) ([]os.FileInfo, error)
+	Stat() (os.FileInfo, error)
+}
+```
+
+#### Pusher [[doc](https://golang.org/pkg/net/http/#Pusher)] [[src1](https://golang.org/src/net/http/http.go#L119)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/net/http/http.go#L119-L141)]
+
+```go
+type Pusher interface {
+	Push(target string, opts *PushOptions) error
+}
+```
+
+#### CookieJar [[doc](https://golang.org/pkg/net/http/#CookieJar)] [[src1](https://golang.org/src/net/http/jar.go#L17)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/net/http/jar.go#L17-L27)]
+
+```go
+type CookieJar interface {
+	SetCookies(u *url.URL, cookies []*Cookie)
+	Cookies(u *url.URL) []*Cookie
+}
+```
+
+#### Handler [[doc](https://golang.org/pkg/net/http/#Handler)] [[src1](https://golang.org/src/net/http/server.go#L81)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/net/http/server.go#L81-L83)]
+
+```go
+type Handler interface {
+	ServeHTTP(ResponseWriter, *Request)
+}
+```
+
+#### ResponseWriter [[doc](https://golang.org/pkg/net/http/#ResponseWriter)] [[src1](https://golang.org/src/net/http/server.go#L90)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/net/http/server.go#L90-L140)]
+
+```go
+type ResponseWriter interface {
+	Header() Header
+	Write([]byte) (int, error)
+	WriteHeader(int)
+}
+```
+
+#### Flusher [[doc](https://golang.org/pkg/net/http/#Flusher)] [[src1](https://golang.org/src/net/http/server.go#L153)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/net/http/server.go#L153-L156)]
+
+```go
+type Flusher interface {
+	Flush()
+}
+```
+
+#### Hijacker [[doc](https://golang.org/pkg/net/http/#Hijacker)] [[src1](https://golang.org/src/net/http/server.go#L165)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/net/http/server.go#L165-L181)]
+
+```go
+type Hijacker interface {
+	Hijack() (net.Conn, *bufio.ReadWriter, error)
+}
+```
+
+#### CloseNotifier [[doc](https://golang.org/pkg/net/http/#CloseNotifier)] [[src1](https://golang.org/src/net/http/server.go#L188)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/net/http/server.go#L188-L208)]
+
+```go
+type CloseNotifier interface {
+	CloseNotify() <-chan bool
+}
+```
+
+
+
+### package `image`
+
+#### Image [[doc](https://golang.org/pkg/image/#Image)] [[src1](https://golang.org/src/image/image.go#L36)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/image/image.go#L36-L46)]
+
+```go
+type Image interface {
+	ColorModel() color.Model
+	Bounds() Rectangle
+	At(x, y int) color.Color
+}
+```
+
+#### PalettedImage [[doc](https://golang.org/pkg/image/#PalettedImage)] [[src1](https://golang.org/src/image/image.go#L53)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/image/image.go#L53-L57)]
+
+```go
+type PalettedImage interface {
+	ColorIndexAt(x, y int) uint8
+	Image
+}
+```
+
+
+
+### package `image/color`
+
+#### Color [[doc](https://golang.org/pkg/image/color/#Color)] [[src1](https://golang.org/src/image/color/color.go#L10)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/image/color/color.go#L10-L19)]
+
+```go
+type Color interface {
+	RGBA() (r, g, b, a uint32)
+}
+```
+
+#### Model [[doc](https://golang.org/pkg/image/color/#Model)] [[src1](https://golang.org/src/image/color/color.go#L142)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/image/color/color.go#L142-L144)]
+
+```go
+type Model interface {
+	Convert(c Color) Color
+}
+```
+
+
+
+### package `image/draw`
+
+#### Image [[doc](https://golang.org/pkg/image/draw/#Image)] [[src1](https://golang.org/src/image/draw/draw.go#L21)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/image/draw/draw.go#L21-L24)]
+
+```go
+type Image interface {
+	image.Image
+	Set(x, y int, c color.Color)
+}
+```
+
+#### Quantizer [[doc](https://golang.org/pkg/image/draw/#Quantizer)] [[src1](https://golang.org/src/image/draw/draw.go#L27)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/image/draw/draw.go#L27-L31)]
+
+```go
+type Quantizer interface {
+	Quantize(p color.Palette, m image.Image) color.Palette
+}
+```
+
+#### Drawer [[doc](https://golang.org/pkg/image/draw/#Drawer)] [[src1](https://golang.org/src/image/draw/draw.go#L50)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/image/draw/draw.go#L50-L54)]
+
+```go
+type Drawer interface {
+	Draw(dst Image, r image.Rectangle, src image.Image, sp image.Point)
+}
+```
+
+
+
+### package `hash`
+
+#### Hash [[doc](https://golang.org/pkg/hash/#Hash)] [[src1](https://golang.org/src/hash/hash.go#L11)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/hash/hash.go#L11-L31)]
+
+```go
+type Hash interface {
+	io.Writer
+	Sum(b []byte) []byte
+	Reset()
+	Size() int
+	BlockSize() int
+}
+```
+
+#### Hash32 [[doc](https://golang.org/pkg/hash/#Hash32)] [[src1](https://golang.org/src/hash/hash.go#L34)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/hash/hash.go#L34-L37)]
+
+```go
+type Hash32 interface {
+	Hash
+	Sum32() uint32
+}
+```
+
+#### Hash64 [[doc](https://golang.org/pkg/hash/#Hash64)] [[src1](https://golang.org/src/hash/hash.go#L40)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/hash/hash.go#L40-L43)]
+
+```go
+type Hash64 interface {
+	Hash
+	Sum64() uint64
+}
+```
+
+
+
+### package `crypto`
+
+#### Signer [[doc](https://golang.org/pkg/crypto/#Signer)] [[src1](https://golang.org/src/crypto/crypto.go#L107)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/crypto/crypto.go#L107-L126)]
+
+```go
+type Signer interface {
+	Public() PublicKey
+	Sign(rand io.Reader, digest []byte, opts SignerOpts) (signature []byte, err error)
+}
+```
+
+#### SignerOpts [[doc](https://golang.org/pkg/crypto/#SignerOpts)] [[src1](https://golang.org/src/crypto/crypto.go#L129)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/crypto/crypto.go#L129-L134)]
+
+```go
+type SignerOpts interface {
+	HashFunc() Hash
+}
+```
+
+#### Decrypter [[doc](https://golang.org/pkg/crypto/#Decrypter)] [[src1](https://golang.org/src/crypto/crypto.go#L139)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/crypto/crypto.go#L139-L148)]
+
+```go
+type Decrypter interface {
+	Public() PublicKey
+	Decrypt(rand io.Reader, msg []byte, opts DecrypterOpts) (plaintext []byte, err error)
+}
+```
+
+
+
+### package `reflect`
+
+#### Type [[doc](https://golang.org/pkg/reflect/#Type)] [[src1](https://golang.org/src/reflect/type.go#L35)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/reflect/type.go#L35-L205)]
+
+```go
+type Type interface {
+	Align() int
+	FieldAlign() int
+	Method(int) Method
+	MethodByName(string) (Method, bool)
+	NumMethod() int
+	Name() string
+	PkgPath() string
+	Size() uintptr
+	String() string
+	Kind() Kind
+	Implements(u Type) bool
+	AssignableTo(u Type) bool
+	ConvertibleTo(u Type) bool
+	Comparable() bool
+	Bits() int
+	ChanDir() ChanDir
+	IsVariadic() bool
+	Elem() Type
+	Field(i int) StructField
+	FieldByIndex(index []int) StructField
+	FieldByName(name string) (StructField, bool)
+	FieldByNameFunc(match func(string) bool) (StructField, bool)
+	In(i int) Type
+	Key() Type
+	Len() int
+	NumField() int
+	NumIn() int
+	NumOut() int
+	Out(i int) Type
+	common() *rtype
+	uncommon() *uncommonType
+}
+```
+
+
+
+### package `os`
+
+#### Signal [[doc](https://golang.org/pkg/os/#Signal)] [[src1](https://golang.org/src/os/exec.go#L64)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/os/exec.go#L64-L67)]
+
+```go
+type Signal interface {
+	String() string
+	Signal()
+}
+```
+
+#### FileInfo [[doc](https://golang.org/pkg/os/#FileInfo)] [[src1](https://golang.org/src/os/types.go#L21)] [[src2](https://github.com/golang/go/blob/release-branch.go1.8/src/os/types.go#L21-L28)]
+
+```go
+type FileInfo interface {
+	Name() string
+	Size() int64
+	Mode() FileMode
+	ModTime() time.Time
+	IsDir() bool
+	Sys() interface{}
+}
+```
+
+
+
+
+
+## Source
+
+### iface.awk
+
+```awk
+BEGIN {
+    if (package == "") {
+        print "error: package is not defined"
+        exit 1
+    }
+
+    if (branch == "") {
+        print "error: branch is not defined"
+        exit 1
+    }
+
+    state = 0
+    indent0 = 0
+    indent1 = 0
+    from_line = 0
+    to_line = 0
+    filename = ""
+    type = ""
+    code = ""
+
+    printf "\n"
+    printf "\n"
+    printf "\n"
+    if (package == "builtin") {
+        printf "### (builtin)\n"
+    } else {
+        printf "### package `%s`\n", package
+    }
+}
+
+# Start of type
+/type ([A-Z][^ ]*|error) interface {/ {
+    if (state == 0) {
+        indent0 = index($0, "type ")
+        if (indent0 == 1) {
+            state = 1
+
+            s = substr($0, indent0 + 5) # length("type ") == 5
+            len = index(s, " ") - 1
+            type = substr(s, 0, len)
+
+            filename = FILENAME
+            sub(/.*\//, "", filename)
+
+            from_line = FNR
+            code = ""
+        } else {
+            # >>> Uncomment this block to write an alert instead of skipping the code <<<
+            # state = 1
+            #
+            # s = substr($0, indent0 + 5) # length("type ") == 5
+            # len = index(s, " ") - 1
+            # type = substr(s, 0, len)
+            #
+            # filename = FILENAME
+            # sub(/.*\//, "", filename)
+            #
+            # from_line = FNR
+            # code = ""
+            #
+            # printf "\n# type is not the first character: filename: %s line: %d\n\n", FILENAME, FNR
+        }
+    }
+}
+
+# Inside type
+{
+    if (state == 1) {
+        line = $0
+        # Remove comments
+        sub(/[\t ]*\/\/.*/, "", line)
+        # Remove trailing whitespaces
+        sub(/[\t ]*$/, "", line)
+        # Only print non-blank lines
+        if (line != "") {
+            code = code line "\n"
+        }
+    }
+}
+
+# End of type
+/}/ {
+    if (state == 1) {
+        indent1 = index($0, "}")
+        if (indent0 == indent1) {
+            state = 0
+            to_line = FNR
+            printf "\n"
+            printf "#### %s " \
+                "[[doc](https://golang.org/pkg/%s/#%s)] " \
+                "[[src1](https://golang.org/src/%s/%s#L%d)] " \
+                "[[src2](https://github.com/golang/go/blob/release-branch.%s/src/%s/%s#L%d-L%d)]\n",
+                type,
+                package, type,
+                package, filename, from_line,
+                branch, package, filename, from_line, to_line
+            printf "\n"
+            printf "```go\n"
+            printf "%s", code
+            printf "```\n"
+        }
+    }
+}
+```
+
+### make.sh
+
+```sh
+#!/bin/sh
+
+packages=(
+    'builtin'
+    'runtime'
+    'math/rand'
+    'sort'
+    'container/heap'
+    'io'
+    'fmt'
+    'encoding'
+    'net'
+    'net/http'
+    'image'
+    'image/color'
+    'image/draw'
+    'hash'
+    'crypto'
+    'reflect'
+    'os'
+)
+
+if [ -z "${GOROOT}" ]
+then
+    eval $(go env | grep -e '^GOROOT=')
+fi
+
+if [ -z "${GOROOT}" ]
+then
+    echo 'Cannot find GOROOT'
+    exit 1
+fi
+
+go_version=$(go version)
+go_branch=${go_version#go version }
+go_branch=${go_branch% *}
+
+case ${go_branch} in
+go[0-9].[0-9])
+    ;;
+go[0-9].[0-9].[0-9])
+    go_branch=${go_branch%.[0-9]}
+    ;;
+*)
+    printf 'Unexpected go version: %s\n' ${go_version}
+    exit 2
+    ;;
+esac
+
+echo "# A collection of interfaces in Go's standard library"
+echo
+echo "This is not an exhaustive list of all interfaces in Go's standard library."
+echo 'I only list those I think are important.'
+echo 'Interfaces defined in frequently used packages (like `io`, `fmt`) are included.'
+echo 'Interfaces that have significant importance are also included.'
+echo
+printf 'All of the following information is based on `%s`.\n' "$(go version)"
+
+for package in ${packages[@]}
+do
+    find ${GOROOT}/src/${package} -maxdepth 1 \
+        -type f '(' \
+            -name '*_test.go' -prune -o \
+            -name '*.go' -exec \
+                awk -f iface.awk -v package="${package}" -v branch="${go_branch}" '{}' '+' \
+        ')'
+done
+
+printf '\n'
+printf '\n'
+printf '\n'
+printf '\n'
+printf '\n'
+printf '## Source\n'
+printf '\n'
+
+printf '### iface.awk\n'
+printf '\n'
+printf '```awk\n'
+cat iface.awk
+printf '```\n'
+printf '\n'
+
+printf '### make.sh\n'
+printf '\n'
+printf '```sh\n'
+cat make.sh
+printf '```\n'
+```
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