diff options
Diffstat (limited to 'src/pkg/compress/flate/inflate.go')
| -rw-r--r-- | src/pkg/compress/flate/inflate.go | 43 |
1 files changed, 21 insertions, 22 deletions
diff --git a/src/pkg/compress/flate/inflate.go b/src/pkg/compress/flate/inflate.go index 3845f1204..3f2042bfe 100644 --- a/src/pkg/compress/flate/inflate.go +++ b/src/pkg/compress/flate/inflate.go @@ -10,7 +10,6 @@ package flate import ( "bufio" "io" - "os" "strconv" ) @@ -25,33 +24,33 @@ const ( // A CorruptInputError reports the presence of corrupt input at a given offset. type CorruptInputError int64 -func (e CorruptInputError) String() string { - return "flate: corrupt input before offset " + strconv.Itoa64(int64(e)) +func (e CorruptInputError) Error() string { + return "flate: corrupt input before offset " + strconv.FormatInt(int64(e), 10) } // An InternalError reports an error in the flate code itself. type InternalError string -func (e InternalError) String() string { return "flate: internal error: " + string(e) } +func (e InternalError) Error() string { return "flate: internal error: " + string(e) } // A ReadError reports an error encountered while reading input. type ReadError struct { - Offset int64 // byte offset where error occurred - Error os.Error // error returned by underlying Read + Offset int64 // byte offset where error occurred + Err error // error returned by underlying Read } -func (e *ReadError) String() string { - return "flate: read error at offset " + strconv.Itoa64(e.Offset) + ": " + e.Error.String() +func (e *ReadError) Error() string { + return "flate: read error at offset " + strconv.FormatInt(e.Offset, 10) + ": " + e.Err.Error() } // A WriteError reports an error encountered while writing output. type WriteError struct { - Offset int64 // byte offset where error occurred - Error os.Error // error returned by underlying Write + Offset int64 // byte offset where error occurred + Err error // error returned by underlying Write } -func (e *WriteError) String() string { - return "flate: write error at offset " + strconv.Itoa64(e.Offset) + ": " + e.Error.String() +func (e *WriteError) Error() string { + return "flate: write error at offset " + strconv.FormatInt(e.Offset, 10) + ": " + e.Err.Error() } // Huffman decoder is based on @@ -190,7 +189,7 @@ var fixedHuffmanDecoder = huffmanDecoder{ // the NewReader will introduce its own buffering. type Reader interface { io.Reader - ReadByte() (c byte, err os.Error) + ReadByte() (c byte, err error) } // Decompress state. @@ -224,7 +223,7 @@ type decompressor struct { // and decompression state. step func(*decompressor) final bool - err os.Error + err error toRead []byte hl, hd *huffmanDecoder copyLen int @@ -237,7 +236,7 @@ func (f *decompressor) nextBlock() { f.flush((*decompressor).nextBlock) return } - f.err = os.EOF + f.err = io.EOF return } for f.nb < 1+2 { @@ -272,7 +271,7 @@ func (f *decompressor) nextBlock() { } } -func (f *decompressor) Read(b []byte) (int, os.Error) { +func (f *decompressor) Read(b []byte) (int, error) { for { if len(f.toRead) > 0 { n := copy(b, f.toRead) @@ -287,8 +286,8 @@ func (f *decompressor) Read(b []byte) (int, os.Error) { panic("unreachable") } -func (f *decompressor) Close() os.Error { - if f.err == os.EOF { +func (f *decompressor) Close() error { + if f.err == io.EOF { return nil } return f.err @@ -299,7 +298,7 @@ func (f *decompressor) Close() os.Error { var codeOrder = [...]int{16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15} -func (f *decompressor) readHuffman() os.Error { +func (f *decompressor) readHuffman() error { // HLIT[5], HDIST[5], HCLEN[4]. for f.nb < 5+5+4 { if err := f.moreBits(); err != nil { @@ -625,10 +624,10 @@ func (f *decompressor) setDict(dict []byte) { f.hw = f.hp } -func (f *decompressor) moreBits() os.Error { +func (f *decompressor) moreBits() error { c, err := f.r.ReadByte() if err != nil { - if err == os.EOF { + if err == io.EOF { err = io.ErrUnexpectedEOF } return err @@ -640,7 +639,7 @@ func (f *decompressor) moreBits() os.Error { } // Read the next Huffman-encoded symbol from f according to h. -func (f *decompressor) huffSym(h *huffmanDecoder) (int, os.Error) { +func (f *decompressor) huffSym(h *huffmanDecoder) (int, error) { for n := uint(h.min); n <= uint(h.max); n++ { lim := h.limit[n] if lim == -1 { |