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cmd/gofmt, bufio, image: Consistency and error handling.

cmd/gofmt: Add error handling for ioutil.WriteFile.
bufio: Consistency, rename e to err.
image: Consistency, fix comment for asReader.

R=golang-dev, dave, minux.ma, adg
CC=golang-dev
https://golang.org/cl/7029056
This commit is contained in:
Robin Eklind 2013-01-07 11:15:53 +11:00 committed by Andrew Gerrand
parent c753404886
commit f36a53cd5d
4 changed files with 29 additions and 27 deletions

View File

@ -62,7 +62,9 @@ func runTest(t *testing.T, in, out, flags string) {
if err == nil {
t.Errorf("%s", d)
}
ioutil.WriteFile(in+".gofmt", got, 0666)
if err := ioutil.WriteFile(in+".gofmt", got, 0666); err != nil {
t.Error(err)
}
}
}

View File

@ -76,13 +76,13 @@ func (b *Reader) fill() {
}
// Read new data.
n, e := b.rd.Read(b.buf[b.w:])
n, err := b.rd.Read(b.buf[b.w:])
if n < 0 {
panic(errNegativeRead)
}
b.w += n
if e != nil {
b.err = e
if err != nil {
b.err = err
}
}
@ -379,8 +379,8 @@ func (b *Reader) ReadBytes(delim byte) (line []byte, err error) {
// ReadString returns err != nil if and only if the returned data does not end in
// delim.
func (b *Reader) ReadString(delim byte) (line string, err error) {
bytes, e := b.ReadBytes(delim)
return string(bytes), e
bytes, err := b.ReadBytes(delim)
return string(bytes), err
}
// WriteTo implements io.WriterTo.
@ -461,17 +461,17 @@ func (b *Writer) Flush() error {
if b.n == 0 {
return nil
}
n, e := b.wr.Write(b.buf[0:b.n])
if n < b.n && e == nil {
e = io.ErrShortWrite
n, err := b.wr.Write(b.buf[0:b.n])
if n < b.n && err == nil {
err = io.ErrShortWrite
}
if e != nil {
if err != nil {
if n > 0 && n < b.n {
copy(b.buf[0:b.n-n], b.buf[n:b.n])
}
b.n -= n
b.err = e
return e
b.err = err
return err
}
b.n = 0
return nil

View File

@ -28,9 +28,9 @@ func newRot13Reader(r io.Reader) *rot13Reader {
}
func (r13 *rot13Reader) Read(p []byte) (int, error) {
n, e := r13.r.Read(p)
if e != nil {
return n, e
n, err := r13.r.Read(p)
if err != nil {
return n, err
}
for i := 0; i < n; i++ {
c := p[i] | 0x20 // lowercase byte
@ -48,15 +48,15 @@ func readBytes(buf *Reader) string {
var b [1000]byte
nb := 0
for {
c, e := buf.ReadByte()
if e == io.EOF {
c, err := buf.ReadByte()
if err == io.EOF {
break
}
if e == nil {
if err == nil {
b[nb] = c
nb++
} else if e != iotest.ErrTimeout {
panic("Data: " + e.Error())
} else if err != iotest.ErrTimeout {
panic("Data: " + err.Error())
}
}
return string(b[0:nb])
@ -93,12 +93,12 @@ var readMakers = []readMaker{
func readLines(b *Reader) string {
s := ""
for {
s1, e := b.ReadString('\n')
if e == io.EOF {
s1, err := b.ReadString('\n')
if err == io.EOF {
break
}
if e != nil && e != iotest.ErrTimeout {
panic("GetLines: " + e.Error())
if err != nil && err != iotest.ErrTimeout {
panic("GetLines: " + err.Error())
}
s += s1
}
@ -110,9 +110,9 @@ func reads(buf *Reader, m int) string {
var b [1000]byte
nb := 0
for {
n, e := buf.Read(b[nb : nb+m])
n, err := buf.Read(b[nb : nb+m])
nb += n
if e == io.EOF {
if err == io.EOF {
break
}
}

View File

@ -39,7 +39,7 @@ type reader interface {
Peek(int) ([]byte, error)
}
// AsReader converts an io.Reader to a reader.
// asReader converts an io.Reader to a reader.
func asReader(r io.Reader) reader {
if rr, ok := r.(reader); ok {
return rr