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rename FooError vars to ErrFoo

Browse Source 
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5574056
This commit is contained in:
Brad Fitzpatrick 2012-01-24 11:48:48 -08:00
parent 0da89b3964
commit 37d2f8190d
10 changed files with 51 additions and 51 deletions
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8
src/pkg/archive/tar/reader.go
View File

@ -18,7 +18,7 @@ import (
)
var (
HeaderError = errors.New("invalid tar header")
ErrHeader = errors.New("invalid tar header")
)
// A Reader provides sequential access to the contents of a tar archive.
@ -123,13 +123,13 @@ func (tr *Reader) readHeader() *Header {
if bytes.Equal(header, zeroBlock[0:blockSize]) {
tr.err = io.EOF
} else {
tr.err = HeaderError // zero block and then non-zero block
tr.err = ErrHeader // zero block and then non-zero block
}
return nil
}
if !tr.verifyChecksum(header) {
tr.err = HeaderError
tr.err = ErrHeader
return nil
}
@ -188,7 +188,7 @@ func (tr *Reader) readHeader() *Header {
}
if tr.err != nil {
tr.err = HeaderError
tr.err = ErrHeader
return nil
}

24
src/pkg/archive/zip/reader.go
View File

@ -17,9 +17,9 @@ import (
)
var (
FormatError = errors.New("zip: not a valid zip file")
UnsupportedMethod = errors.New("zip: unsupported compression algorithm")
ChecksumError = errors.New("zip: checksum error")
ErrFormat = errors.New("zip: not a valid zip file")
ErrAlgorithm = errors.New("zip: unsupported compression algorithm")
ErrChecksum = errors.New("zip: checksum error")
)
type Reader struct {
@ -90,12 +90,12 @@ func (z *Reader) init(r io.ReaderAt, size int64) error {
// The count of files inside a zip is truncated to fit in a uint16.
// Gloss over this by reading headers until we encounter
// a bad one, and then only report a FormatError or UnexpectedEOF if
// a bad one, and then only report a ErrFormat or UnexpectedEOF if
// the file count modulo 65536 is incorrect.
for {
f := &File{zipr: r, zipsize: size}
err = readDirectoryHeader(f, buf)
if err == FormatError || err == io.ErrUnexpectedEOF {
if err == ErrFormat || err == io.ErrUnexpectedEOF {
break
}
if err != nil {
@ -135,7 +135,7 @@ func (f *File) Open() (rc io.ReadCloser, err error) {
case Deflate:
rc = flate.NewReader(r)
default:
err = UnsupportedMethod
err = ErrAlgorithm
}
if rc != nil {
rc = &checksumReader{rc, crc32.NewIEEE(), f, r}
@ -162,7 +162,7 @@ func (r *checksumReader) Read(b []byte) (n int, err error) {
}
}
if r.hash.Sum32() != r.f.CRC32 {
err = ChecksumError
err = ErrChecksum
}
return
}
@ -176,7 +176,7 @@ func readFileHeader(f *File, r io.Reader) error {
}
c := binary.LittleEndian
if sig := c.Uint32(b[:4]); sig != fileHeaderSignature {
return FormatError
return ErrFormat
}
f.ReaderVersion = c.Uint16(b[4:6])
f.Flags = c.Uint16(b[6:8])
@ -207,7 +207,7 @@ func (f *File) findBodyOffset() (int64, error) {
}
c := binary.LittleEndian
if sig := c.Uint32(b[:4]); sig != fileHeaderSignature {
return 0, FormatError
return 0, ErrFormat
}
filenameLen := int(c.Uint16(b[26:28]))
extraLen := int(c.Uint16(b[28:30]))
@ -216,7 +216,7 @@ func (f *File) findBodyOffset() (int64, error) {
// readDirectoryHeader attempts to read a directory header from r.
// It returns io.ErrUnexpectedEOF if it cannot read a complete header,
// and FormatError if it doesn't find a valid header signature.
// and ErrFormat if it doesn't find a valid header signature.
func readDirectoryHeader(f *File, r io.Reader) error {
var b [directoryHeaderLen]byte
if _, err := io.ReadFull(r, b[:]); err != nil {
@ -224,7 +224,7 @@ func readDirectoryHeader(f *File, r io.Reader) error {
}
c := binary.LittleEndian
if sig := c.Uint32(b[:4]); sig != directoryHeaderSignature {
return FormatError
return ErrFormat
}
f.CreatorVersion = c.Uint16(b[4:6])
f.ReaderVersion = c.Uint16(b[6:8])
@ -280,7 +280,7 @@ func readDirectoryEnd(r io.ReaderAt, size int64) (dir *directoryEnd, err error)
break
}
if i == 1 || bLen == size {
return nil, FormatError
return nil, ErrFormat
}
}

16
src/pkg/archive/zip/reader_test.go
View File

@ -70,7 +70,7 @@ var tests = []ZipTest{
},
},
{Name: "readme.zip"},
{Name: "readme.notzip", Error: FormatError},
{Name: "readme.notzip", Error: ErrFormat},
{
Name: "dd.zip",
File: []ZipTestFile{
@ -131,7 +131,7 @@ func readTestZip(t *testing.T, zt ZipTest) {
}
// bail if file is not zip
if err == FormatError {
if err == ErrFormat {
return
}
defer func() {
@ -184,8 +184,8 @@ func readTestZip(t *testing.T, zt ZipTest) {
}
var b bytes.Buffer
_, err = io.Copy(&b, r)
if err != ChecksumError {
t.Errorf("%s: copy error=%v, want %v", z.File[0].Name, err, ChecksumError)
if err != ErrChecksum {
t.Errorf("%s: copy error=%v, want %v", z.File[0].Name, err, ErrChecksum)
}
}
}
@ -268,8 +268,8 @@ func TestInvalidFiles(t *testing.T) {
// zeroes
_, err := NewReader(sliceReaderAt(b), size)
if err != FormatError {
t.Errorf("zeroes: error=%v, want %v", err, FormatError)
if err != ErrFormat {
t.Errorf("zeroes: error=%v, want %v", err, ErrFormat)
}
// repeated directoryEndSignatures
@ -279,8 +279,8 @@ func TestInvalidFiles(t *testing.T) {
copy(b[i:i+4], sig)
}
_, err = NewReader(sliceReaderAt(b), size)
if err != FormatError {
t.Errorf("sigs: error=%v, want %v", err, FormatError)
if err != ErrFormat {
t.Errorf("sigs: error=%v, want %v", err, ErrFormat)
}
}

2
src/pkg/archive/zip/writer.go
View File

@ -129,7 +129,7 @@ func (w *Writer) CreateHeader(fh *FileHeader) (io.Writer, error) {
case Deflate:
fw.comp = flate.NewWriter(fw.compCount, 5)
default:
return nil, UnsupportedMethod
return nil, ErrAlgorithm
}
fw.rawCount = &countWriter{w: fw.comp}

14
src/pkg/compress/gzip/gunzip.go
View File

@ -37,8 +37,8 @@ func makeReader(r io.Reader) flate.Reader {
return bufio.NewReader(r)
}
var HeaderError = errors.New("invalid gzip header")
var ChecksumError = errors.New("gzip checksum error")
var ErrHeader = errors.New("invalid gzip header")
var ErrChecksum = errors.New("gzip checksum error")
// The gzip file stores a header giving metadata about the compressed file.
// That header is exposed as the fields of the Compressor and Decompressor structs.
@ -59,7 +59,7 @@ type Header struct {
// Only the first header is recorded in the Decompressor fields.
//
// Gzip files store a length and checksum of the uncompressed data.
// The Decompressor will return a ChecksumError when Read
// The Decompressor will return a ErrChecksum when Read
// reaches the end of the uncompressed data if it does not
// have the expected length or checksum. Clients should treat data
// returned by Read as tentative until they receive the successful
@ -99,7 +99,7 @@ func (z *Decompressor) readString() (string, error) {
needconv := false
for i := 0; ; i++ {
if i >= len(z.buf) {
return "", HeaderError
return "", ErrHeader
}
z.buf[i], err = z.r.ReadByte()
if err != nil {
@ -137,7 +137,7 @@ func (z *Decompressor) readHeader(save bool) error {
return err
}
if z.buf[0] != gzipID1 || z.buf[1] != gzipID2 || z.buf[2] != gzipDeflate {
return HeaderError
return ErrHeader
}
z.flg = z.buf[3]
if save {
@ -188,7 +188,7 @@ func (z *Decompressor) readHeader(save bool) error {
}
sum := z.digest.Sum32() & 0xFFFF
if n != sum {
return HeaderError
return ErrHeader
}
}
@ -221,7 +221,7 @@ func (z *Decompressor) Read(p []byte) (n int, err error) {
crc32, isize := get4(z.buf[0:4]), get4(z.buf[4:8])
sum := z.digest.Sum32()
if sum != crc32 || isize != z.size {
z.err = ChecksumError
z.err = ErrChecksum
return 0, z.err
}

6
src/pkg/compress/gzip/gunzip_test.go
View File

@ -232,7 +232,7 @@ var gunzipTests = []gunzipTest{
0x02, 0x00, 0x2d, 0x3b, 0x08, 0xaf, 0x0c, 0x00,
0x00, 0x00, 'g', 'a', 'r', 'b', 'a', 'g', 'e', '!', '!', '!',
},
HeaderError,
ErrHeader,
},
{ // has 1 non-empty fixed huffman block not enough header
"hello.txt",
@ -260,7 +260,7 @@ var gunzipTests = []gunzipTest{
0x02, 0x00, 0xff, 0xff, 0xff, 0xff, 0x0c, 0x00,
0x00, 0x00,
},
ChecksumError,
ErrChecksum,
},
{ // has 1 non-empty fixed huffman block but corrupt size
"hello.txt",
@ -274,7 +274,7 @@ var gunzipTests = []gunzipTest{
0x02, 0x00, 0x2d, 0x3b, 0x08, 0xaf, 0xff, 0x00,
0x00, 0x00,
},
ChecksumError,
ErrChecksum,
},
}

12
src/pkg/compress/zlib/reader.go
View File

@ -34,9 +34,9 @@ import (
const zlibDeflate = 8
var ChecksumError = errors.New("zlib checksum error")
var HeaderError = errors.New("invalid zlib header")
var DictionaryError = errors.New("invalid zlib dictionary")
var ErrChecksum = errors.New("zlib checksum error")
var ErrHeader = errors.New("invalid zlib header")
var ErrDictionary = errors.New("invalid zlib dictionary")
type reader struct {
r flate.Reader
@ -68,7 +68,7 @@ func NewReaderDict(r io.Reader, dict []byte) (io.ReadCloser, error) {
}
h := uint(z.scratch[0])<<8 | uint(z.scratch[1])
if (z.scratch[0]&0x0f != zlibDeflate) || (h%31 != 0) {
return nil, HeaderError
return nil, ErrHeader
}
if z.scratch[1]&0x20 != 0 {
_, err = io.ReadFull(z.r, z.scratch[0:4])
@ -77,7 +77,7 @@ func NewReaderDict(r io.Reader, dict []byte) (io.ReadCloser, error) {
}
checksum := uint32(z.scratch[0])<<24 | uint32(z.scratch[1])<<16 | uint32(z.scratch[2])<<8 | uint32(z.scratch[3])
if checksum != adler32.Checksum(dict) {
return nil, DictionaryError
return nil, ErrDictionary
}
z.decompressor = flate.NewReaderDict(z.r, dict)
} else {
@ -110,7 +110,7 @@ func (z *reader) Read(p []byte) (n int, err error) {
// ZLIB (RFC 1950) is big-endian, unlike GZIP (RFC 1952).
checksum := uint32(z.scratch[0])<<24 | uint32(z.scratch[1])<<16 | uint32(z.scratch[2])<<8 | uint32(z.scratch[3])
if checksum != z.digest.Sum32() {
z.err = ChecksumError
z.err = ErrChecksum
return 0, z.err
}
return

6
src/pkg/compress/zlib/reader_test.go
View File

@ -45,14 +45,14 @@ var zlibTests = []zlibTest{
"",
[]byte{0x78, 0x9f, 0x03, 0x00, 0x00, 0x00, 0x00, 0x01},
nil,
HeaderError,
ErrHeader,
},
{
"bad checksum",
"",
[]byte{0x78, 0x9c, 0x03, 0x00, 0x00, 0x00, 0x00, 0xff},
nil,
ChecksumError,
ErrChecksum,
},
{
"not enough data",
@ -95,7 +95,7 @@ var zlibTests = []zlibTest{
[]byte{
0x48, 0x65, 0x6c, 0x6c,
},
DictionaryError,
ErrDictionary,
},
}

8
src/pkg/crypto/bcrypt/bcrypt.go
View File

@ -25,11 +25,11 @@ const (
// The error returned from CompareHashAndPassword when a password and hash do
// not match.
var MismatchedHashAndPasswordError = errors.New("crypto/bcrypt: hashedPassword is not the hash of the given password")
var ErrMismatchedHashAndPassword = errors.New("crypto/bcrypt: hashedPassword is not the hash of the given password")
// The error returned from CompareHashAndPassword when a hash is too short to
// be a bcrypt hash.
var HashTooShortError = errors.New("crypto/bcrypt: hashedSecret too short to be a bcrypted password")
var ErrHashTooShort = errors.New("crypto/bcrypt: hashedSecret too short to be a bcrypted password")
// The error returned from CompareHashAndPassword when a hash was created with
// a bcrypt algorithm newer than this implementation.
@ -112,7 +112,7 @@ func CompareHashAndPassword(hashedPassword, password []byte) error {
return nil
}
return MismatchedHashAndPasswordError
return ErrMismatchedHashAndPassword
}
func newFromPassword(password []byte, cost int) (*hashed, error) {
@ -146,7 +146,7 @@ func newFromPassword(password []byte, cost int) (*hashed, error) {
func newFromHash(hashedSecret []byte) (*hashed, error) {
if len(hashedSecret) < minHashSize {
return nil, HashTooShortError
return nil, ErrHashTooShort
}
p := new(hashed)
n, err := p.decodeVersion(hashedSecret)

6
src/pkg/crypto/bcrypt/bcrypt_test.go
View File

@ -22,7 +22,7 @@ func TestBcryptingIsEasy(t *testing.T) {
notPass := "notthepass"
err = CompareHashAndPassword(hp, []byte(notPass))
if err != MismatchedHashAndPasswordError {
if err != ErrMismatchedHashAndPassword {
t.Errorf("%v and %s should be mismatched", hp, notPass)
}
}
@ -72,8 +72,8 @@ type InvalidHashTest struct {
}
var invalidTests = []InvalidHashTest{
{HashTooShortError, []byte("$2a$10$fooo")},
{HashTooShortError, []byte("$2a")},
{ErrHashTooShort, []byte("$2a$10$fooo")},
{ErrHashTooShort, []byte("$2a")},
{HashVersionTooNewError('3'), []byte("$3a$10$sssssssssssssssssssssshhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh")},
{InvalidHashPrefixError('%'), []byte("%2a$10$sssssssssssssssssssssshhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh")},
{InvalidCostError(32), []byte("$2a$32$sssssssssssssssssssssshhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh")},