added iOS source code

[wl-app.git] / iOS / Pods / Realm / Realm / ObjectStore / src / impl / primitive_list_notifier.cpp

diff --git a/iOS/Pods/Realm/Realm/ObjectStore/src/impl/primitive_list_notifier.cpp b/iOS/Pods/Realm/Realm/ObjectStore/src/impl/primitive_list_notifier.cpp
new file mode 100644 (file)
index 0000000..9be9acb
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+++ b/iOS/Pods/Realm/Realm/ObjectStore/src/impl/primitive_list_notifier.cpp
@@ -0,0 +1,99 @@
+////////////////////////////////////////////////////////////////////////////
+//
+// Copyright 2017 Realm Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+////////////////////////////////////////////////////////////////////////////
+
+#include "impl/primitive_list_notifier.hpp"
+
+#include "shared_realm.hpp"
+
+#include <realm/link_view.hpp>
+
+using namespace realm;
+using namespace realm::_impl;
+
+PrimitiveListNotifier::PrimitiveListNotifier(TableRef table, std::shared_ptr<Realm> realm)
+: CollectionNotifier(std::move(realm))
+, m_prev_size(table->size())
+{
+    set_table(*table->get_parent_table());
+    m_table_handover = source_shared_group().export_table_for_handover(table);
+}
+
+void PrimitiveListNotifier::release_data() noexcept
+{
+    m_table.reset();
+}
+
+void PrimitiveListNotifier::do_attach_to(SharedGroup& sg)
+{
+    REALM_ASSERT(m_table_handover);
+    REALM_ASSERT(!m_table);
+    m_table = sg.import_table_from_handover(std::move(m_table_handover));
+}
+
+void PrimitiveListNotifier::do_detach_from(SharedGroup& sg)
+{
+    REALM_ASSERT(!m_table_handover);
+    if (m_table) {
+        m_table_handover = sg.export_table_for_handover(m_table);
+        m_table = {};
+    }
+}
+
+bool PrimitiveListNotifier::do_add_required_change_info(TransactionChangeInfo& info)
+{
+    REALM_ASSERT(!m_table_handover);
+    if (!m_table || !m_table->is_attached()) {
+        return false; // origin row was deleted after the notification was added
+    }
+
+    auto& table = *m_table->get_parent_table();
+    size_t row_ndx = m_table->get_parent_row_index();
+    size_t col_ndx = find_container_column(table, row_ndx, m_table, type_Table, &Table::get_subtable);
+    info.lists.push_back({table.get_index_in_group(), row_ndx, col_ndx, &m_change});
+
+    m_info = &info;
+    return true;
+}
+
+void PrimitiveListNotifier::run()
+{
+    if (!m_table || !m_table->is_attached()) {
+        // Table was deleted entirely, so report all of the rows being removed
+        // if this is the first run after that
+        if (m_prev_size) {
+            m_change.deletions.set(m_prev_size);
+            m_prev_size = 0;
+        }
+        else {
+            m_change = {};
+        }
+        return;
+    }
+
+    if (!m_change.deletions.empty() && m_change.deletions.begin()->second == std::numeric_limits<size_t>::max()) {
+        // Table was cleared, so set the deletions to the actual previous size
+        m_change.deletions.set(m_prev_size);
+    }
+
+    m_prev_size = m_table->size();
+}
+
+void PrimitiveListNotifier::do_prepare_handover(SharedGroup&)
+{
+    add_changes(std::move(m_change));
+}