🐛 fix invariants

include/nlohmann/detail/conversions/to_json.hpp

@@ -132,6 +132,7 @@ struct external_constructor<value_t::array>
     {
         j.m_type = value_t::array;
         j.m_value = arr;
+        j.set_parent(j, true);
         j.assert_invariant();
     }
 
@@ -140,6 +141,7 @@ struct external_constructor<value_t::array>
     {
         j.m_type = value_t::array;
         j.m_value = std::move(arr);
+        j.set_parent(j, true);
         j.assert_invariant();
     }
 
@@ -152,6 +154,7 @@ struct external_constructor<value_t::array>
         using std::end;
         j.m_type = value_t::array;
         j.m_value.array = j.template create<typename BasicJsonType::array_t>(begin(arr), end(arr));
+        j.set_parent(j, true);
         j.assert_invariant();
     }
 
@@ -164,6 +167,9 @@ struct external_constructor<value_t::array>
         for (const bool x : arr)
         {
             j.m_value.array->push_back(x);
+#if JSON_DIAGNOSTICS
+            j.m_value.array->back().m_parent = &j;
+#endif
         }
         j.assert_invariant();
     }
@@ -179,6 +185,7 @@ struct external_constructor<value_t::array>
         {
             std::copy(std::begin(arr), std::end(arr), j.m_value.array->begin());
         }
+        j.set_parent(j, true);
         j.assert_invariant();
     }
 };
@@ -191,6 +198,7 @@ struct external_constructor<value_t::object>
     {
         j.m_type = value_t::object;
         j.m_value = obj;
+        j.set_parent(j, true);
         j.assert_invariant();
     }
 
@@ -199,6 +207,7 @@ struct external_constructor<value_t::object>
     {
         j.m_type = value_t::object;
         j.m_value = std::move(obj);
+        j.set_parent(j, true);
         j.assert_invariant();
     }
 
@@ -211,6 +220,7 @@ struct external_constructor<value_t::object>
 
         j.m_type = value_t::object;
         j.m_value.object = j.template create<typename BasicJsonType::object_t>(begin(obj), end(obj));
+        j.set_parent(j, true);
         j.assert_invariant();
     }
 };