code-review feedback

Co-authored-by: Paul Hoffman <mojaveazure@users.noreply.github.com>

R/TileDBArray.R

@@ -853,7 +853,12 @@ setMethod("[", "tiledb_array",
                          MoreArgs=list(qryptr=qryptr), SIMPLIFY=TRUE)
       ## ensure > 0 for correct handling of zero-length outputs, ensure respecting memory budget
       spdl::debug("['['] result of size estimates is {}", paste(ressizes, collapse=","))
-      .idx_lgl <- ressizes > 0; ressizes <- if (any(.idx_lgl)) ressizes[ressizes > 0] else 0
+      idx <- ressizes > 0
+      ressizes <- if (any(idx)) {
+        ressizes[idx] 
+      } else {
+        0
+      }
       resrv <- max(1, min(memory_budget/8, ressizes))
       spdl::debug("['['] overall estimate {} rows", resrv)