if r.fileView != nil {
		amt := len(p)
		toread := r.fileView[r.off:]
		if len(toread) < 1 {
			return 0, io.EOF
		}
		if len(toread) < amt {
			amt = len(toread)
		}
		copy(p, toread)
		r.off += int64(amt)
		return amt, nil
	}
	return io.ReadFull(r.rdr, p)
}

func (r *MReader) ReadByte() (byte, error) {
	if r.fileView != nil {
		toread := r.fileView[r.off:]
		if len(toread) < 1 {

	r := Reader{
		b:        b,
		readonly: readonly,
	}
	return &r
}

func (r *Reader) Read(b []byte) (int, error) {
	amt := len(b)
	toread := r.b[r.off:]
	if len(toread) < amt {
		amt = len(toread)
	}
	copy(b, toread)
	r.off += int64(amt)
	return amt, nil
}

func (r *Reader) Seek(offset int64, whence int) (ret int64, err error) {
	switch whence {
	case io.SeekStart:

func (sws *WriteSeeker) BytesWritten() []byte {
	return sws.payload
}

func (sws *WriteSeeker) Read(p []byte) (n int, err error) {
	amt := len(p)
	toread := sws.payload[sws.off:]
	if len(toread) < amt {
		amt = len(toread)
	}
	copy(p, toread)
	sws.off += int64(amt)
	return amt, nil

    }

    @Test
    void testReadParentAndChildWithRegularVersionSetParentFile() throws Exception {
        List<File> toRead = new ArrayList<>(2);
        File parentPom = getProject("MNG-6723");
        toRead.add(parentPom);
        toRead.add(new File(parentPom.getParentFile(), "child/pom.xml"));
        MavenSession mavenSession = createMavenSession(null);

func (r *Reader) Read(b []byte) (int, error) {
	for {
		if len(r.toRead) > 0 {
			n := copy(b, r.toRead)
			r.toRead = r.toRead[n:]
			return n, nil
		}
		if r.err != nil {
			return 0, r.err
		}
		r.decode()
	}
}

// decode decompresses bytes from r and leaves them in d.toRead.
// read specifies how to decode bytes into codes.
// litWidth is the width in bits of literal codes.

}

func (f *decompressor) Read(b []byte) (int, error) {
	for {
		if len(f.toRead) > 0 {
			n := copy(b, f.toRead)
			f.toRead = f.toRead[n:]
			if len(f.toRead) == 0 {
				return n, f.err
			}
			return n, nil
		}
		if f.err != nil {
			return 0, f.err
		}
		f.step(f)
		if f.err != nil && len(f.toRead) == 0 {
			f.toRead = f.dict.readFlush() // Flush what's left in case of error
		}
	}
}

            if (remaining == 0) {
                return -1;
            }
            int toRead = (int) Math.min(length, remaining);
            if (toRead == 0) {
                return 0;
            }
            int read = file.read(buffer, offset, toRead);
            if (read < 0) {
                throw new IllegalStateException("Unexpected file length.");
            }

				currentPartBytes := v - partOffset
				currentPartDareBytes := v - partDarePkgOffset
				if currentPartBytes < toRead {
					toRead -= currentPartBytes
					l += getEncSize(currentPartDareBytes)
				} else {
					// current part has the last
					// byte required
					lbPartOffset := partOffset + toRead - 1

					// round up the lbPartOffset
					// to the end of the
					// corresponding DARE package

// before calling any other dictDecoder methods.
func (dd *dictDecoder) readFlush() []byte {
	toRead := dd.hist[dd.rdPos:dd.wrPos]
	dd.rdPos = dd.wrPos
	if dd.wrPos == len(dd.hist) {
		dd.wrPos, dd.rdPos = 0, 0
		dd.full = true
	}
	return toRead

      source: Buffer,
      byteCount: Long,
    ) {
      val toRead = minOf(remainingByteCount, byteCount)
      if (toRead > 0L) {
        source.read(buffer, toRead)
      }
      val toSkip = byteCount - toRead
      if (toSkip > 0L) {
        source.skip(toSkip)
      }
      remainingByteCount -= toRead
      receivedByteCount += byteCount
    }

    @Throws(IOException::class)