= owner: result = accessViaEnvParam(d.graph, n, owner) elif owner.isIterator and interestingIterVar(s): result = accessViaEnvParam(d.graph, n, owner) else: result = accessViaEnvVar(n, owner, d, c) of nkEmpty..pred(nkSym), succ(nkSym)..nkNilLit, nkComesFrom, nkTemplate...