string paramValueNumber(AstNode* nodep) {
// Given a compilcated object create a number to use for param module assignment
// Ideally would be relatively stable if design changes (not use pointer value),
// and must return same value given same input node
// Return must presently be numberic so doesn't collide with 'small' alphanumeric parameter names
ValueMap::iterator it = m_valueMap.find(nodep);
if (it != m_valueMap.end()) {
return cvtToStr(it->second);
} else {
static int BUCKETS = 1000;
V3Hash hash (nodep->name());
int bucket = hash.hshval() % BUCKETS;
int offset = 0;
NextValueMap::iterator it = m_nextValueMap.find(bucket);
if (it != m_nextValueMap.end()) { offset = it->second; it->second = offset + 1; }
else { m_nextValueMap.insert(make_pair(bucket, offset + 1)); }
int num = bucket + offset * BUCKETS;
m_valueMap.insert(make_pair(nodep, num));
return cvtToStr(num);
}
}
