for (PRInt32 i = mCount - 1; i >= 0; --i) { if (mProperties[i] == aProperty) return PR_TRUE;
Match match(aRule, aInstantiation); if (mMatches) { return PL_HashTableLookup(mMatches, &match) != 0; } else { ConstIterator last = Last(); for (ConstIterator i = First(); i != last; ++i) { if (*i == match) return PR_TRUE; }
PropertySet::Contains(nsIRDFResource* aProperty) const{    for (PRInt32 i = mCount - 1; i >= 0; --i) {        if (mProperties[i] == aProperty)            return PR_TRUE;    }    return PR_FALSE;}