: mResult(nsnull), mLength(0), mReadCursor(0), mChannel(nsnull) {
: mChannel(nsnull), mResult(nsnull), mLength(0), mReadCursor(0) {
    nsJSInputStream()        : mResult(nsnull), mLength(0), mReadCursor(0), mChannel(nsnull) {        NS_INIT_REFCNT();    }