package objfile

import (
	
	
	
	

	
	
)

var (
	ErrClosed       = errors.New("objfile: already closed")
	ErrHeader       = errors.New("objfile: invalid header")
	ErrNegativeSize = errors.New("objfile: negative object size")
)
Reader reads and decodes compressed objfile data from a provided io.Reader. Reader implements io.ReadCloser. Close should be called when finished with the Reader. Close will not close the underlying io.Reader.
NewReader returns a new Reader reading from r.
func ( io.Reader) (*Reader, error) {
	,  := zlib.NewReader()
	if  != nil {
		return nil, packfile.ErrZLib.AddDetails(.Error())
	}

	return &Reader{
		zlib: ,
	}, nil
}
Header reads the type and the size of object, and prepares the reader for read
func ( *Reader) () ( plumbing.ObjectType,  int64,  error) {
	var  []byte
	,  = .readUntil(' ')
	if  != nil {
		return
	}

	,  = plumbing.ParseObjectType(string())
	if  != nil {
		return
	}

	,  = .readUntil(0)
	if  != nil {
		return
	}

	,  = strconv.ParseInt(string(), 10, 64)
	if  != nil {
		 = ErrHeader
		return
	}

	defer .prepareForRead(, )
	return
}
readSlice reads one byte at a time from r until it encounters delim or an error.
func ( *Reader) ( byte) ([]byte, error) {
	var  [1]byte
	 := make([]byte, 0, 16)
	for {
		if ,  := .zlib.Read([:]);  != nil && ( != io.EOF ||  == 0) {
			if  == io.EOF {
				return nil, ErrHeader
			}
			return nil, 
		}

		if [0] ==  {
			return , nil
		}

		 = append(, [0])
	}
}

func ( *Reader) ( plumbing.ObjectType,  int64) {
	.hasher = plumbing.NewHasher(, )
	.multi = io.TeeReader(.zlib, .hasher)
}
Read reads len(p) bytes into p from the object data stream. It returns the number of bytes read (0 <= n <= len(p)) and any error encountered. Even if Read returns n < len(p), it may use all of p as scratch space during the call. If Read encounters the end of the data stream it will return err == io.EOF, either in the current call if n > 0 or in a subsequent call.
func ( *Reader) ( []byte) ( int,  error) {
	return .multi.Read()
}
Hash returns the hash of the object data stream that has been read so far.
func ( *Reader) () plumbing.Hash {
	return .hasher.Sum()
}
Close releases any resources consumed by the Reader. Calling Close does not close the wrapped io.Reader originally passed to NewReader.
func ( *Reader) () error {
	return .zlib.Close()