// Slow-path append data
private void append2slow() {
if (sparseLen() > FileVec.DFLT_CHUNK_SIZE)
throw new ArrayIndexOutOfBoundsException(sparseLen());
assert _ds == null;
if (_ls != null && _ls.length > 0) {
if (_id == null) { // check for sparseness
int nzs = 0;
for (int i = 0; i < _ls.length; ++i) if (_ls[i] != 0 || _xs[i] != 0) ++nzs;
if ((nzs + 1) * _sparseRatio < _len) {
set_sparse(nzs);
assert sparseLen() == 0 || sparseLen() <= _ls.length
: "_len = "
+ sparseLen()
+ ", _ls.length = "
+ _ls.length
+ ", nzs = "
+ nzs
+ ", len2 = "
+ _len;
assert _id.length == _ls.length;
assert sparseLen() <= _len;
return;
}
} else {
// verify we're still sufficiently sparse
if ((_sparseRatio * (sparseLen()) >> 1) > _len) cancel_sparse();
else _id = MemoryManager.arrayCopyOf(_id, sparseLen() << 1);
}
_ls = MemoryManager.arrayCopyOf(_ls, sparseLen() << 1);
_xs = MemoryManager.arrayCopyOf(_xs, sparseLen() << 1);
} else {
alloc_mantissa(4);
alloc_exponent(4);
if (_id != null) alloc_indices(4);
}
assert sparseLen() == 0 || sparseLen() < _ls.length
: "_len = " + sparseLen() + ", _ls.length = " + _ls.length;
assert _id == null || _id.length == _ls.length;
assert sparseLen() <= _len;
}
