private bool IsSequenceFromAll(XmlSchemaSequence derivedSequence, XmlSchemaAll baseAll) {
if (!IsValidOccurrenceRangeRestriction(derivedSequence, baseAll) || derivedSequence.Items.Count > baseAll.Items.Count) {
return false;
}
BitSet map = new BitSet(baseAll.Items.Count);
foreach (XmlSchemaParticle p in derivedSequence.Items) {
int i = GetMappingParticle(p, baseAll.Items);
if (i >= 0) {
if (map[i]) {
return false;
}
else {
map.Set(i);
}
}
else {
return false;
}
}
for (int i = 0; i < baseAll.Items.Count; i++) {
if (!map[i] && !IsParticleEmptiable((XmlSchemaParticle)baseAll.Items[i])) {
return false;
}
}
return true;
}