Check accessible lookup gates only on the used selector rows (#296)

Co-authored-by: akokoshn <[email protected]>

Author: akokoshn

include/nil/blueprint/blueprint/plonk/assignment_proxy.hpp

@@ -501,7 +501,7 @@ namespace nil {
 
                 for (std::size_t selector_row = 0;
                      selector_row < selector.size(); selector_row++) {
-                    if (!selector[selector_row].is_zero()) {
+                    if (!selector[selector_row].is_zero() && private_rows.find(selector_row) != private_rows.end()) {
                         row_index = selector_row;
                         for (const auto &lookup_constraint: lookup_gates[i].constraints) {
                             for (const auto &constraint : lookup_constraint.lookup_input) {

test/proxy.cpp

@@ -409,16 +409,17 @@ BOOST_AUTO_TEST_CASE(blueprint_proxy_call_pack_lookup_tables_test) {
 
         std::vector<std::size_t> lookup_columns_indices = {0, 1, 2, 3, 4};
         std::size_t usable_rows_amount = assignment.allocated_rows();
+        std::uint32_t min_selector_index = 5;
         bp.reserve_table("binary_xor_table/full");
 
-        nil::crypto3::zk::snark::pack_lookup_tables(
+        nil::crypto3::zk::snark::pack_lookup_tables_horizontal(
                 bp.get_reserved_indices(),
                 bp.get_reserved_tables(),
-                bp.get(), assignment.get(), lookup_columns_indices,
+                bp.get(), assignment.get(), lookup_columns_indices, min_selector_index,
                 usable_rows_amount);
 
         std::set<uint32_t> lookup_constant_cols = {0, 1, 2, 3, 4};
         BOOST_ASSERT(assignment.get_lookup_constant_cols() == lookup_constant_cols);
-        std::set<uint32_t> lookup_selector_cols = {1};
+        std::set<uint32_t> lookup_selector_cols = {min_selector_index};
         BOOST_ASSERT(assignment.get_lookup_selector_cols() == lookup_selector_cols);
 }