1export default function ZStream() {
 2  /* next input byte */
 3  this.input = null; // JS specific, because we have no pointers
 4  this.next_in = 0;
 5  /* number of bytes available at input */
 6  this.avail_in = 0;
 7  /* total number of input bytes read so far */
 8  this.total_in = 0;
 9  /* next output byte should be put there */
10  this.output = null; // JS specific, because we have no pointers
11  this.next_out = 0;
12  /* remaining free space at output */
13  this.avail_out = 0;
14  /* total number of bytes output so far */
15  this.total_out = 0;
16  /* last error message, NULL if no error */
17  this.msg = ''/*Z_NULL*/;
18  /* not visible by applications */
19  this.state = null;
20  /* best guess about the data type: binary or text */
21  this.data_type = 2/*Z_UNKNOWN*/;
22  /* adler32 value of the uncompressed data */
23  this.adler = 0;
24}