move List class to its own file

list.cpp

@@ -0,0 +1,50 @@
+////////////////////////////////////////////////////////////////////////////
+//
+// Copyright 2015 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 "list.hpp"
+#import <stdexcept>
+
+using namespace realm;
+
+size_t List::size() {
+    return link_view->size();
+}
+
+Row List::get(std::size_t row_ndx) {
+    verify_valid_row(row_ndx);
+    return link_view->get(row_ndx);
+}
+
+void List::set(std::size_t row_ndx, std::size_t target_row_ndx) {
+    verify_valid_row(row_ndx);
+    link_view->set(row_ndx, target_row_ndx);
+}
+
+void List::verify_valid_row(std::size_t row_ndx) {
+    size_t size = link_view->size();
+    if (row_ndx >= size) {
+        throw std::out_of_range(std::string("Index ") + std::to_string(row_ndx) + " is outside of range 0..." + std::to_string(size) + ".");
+    }
+}
+
+void List::verify_attached() {
+    if (!link_view->is_attached()) {
+        throw std::runtime_error("Tableview is not attached");
+    }
+    link_view->sync_if_needed();
+}

list.hpp

@@ -0,0 +1,42 @@
+////////////////////////////////////////////////////////////////////////////
+//
+// Copyright 2015 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.
+//
+////////////////////////////////////////////////////////////////////////////
+
+#ifndef REALM_LIST_HPP
+#define REALM_LIST_HPP
+
+#import "shared_realm.hpp"
+#import <realm/link_view.hpp>
+
+namespace realm {
+    struct List {
+        List(SharedRealm &r, ObjectSchema &s, LinkViewRef l) : realm(r), object_schema(s), link_view(l) {}
+        // FIXME - all should be const
+        SharedRealm realm;
+        ObjectSchema &object_schema;
+        LinkViewRef link_view;
+
+        size_t size();
+        Row get(std::size_t row_ndx);
+        void set(std::size_t row_ndx, std::size_t target_row_ndx);
+        void verify_valid_row(std::size_t row_ndx);
+        void verify_attached();
+    };
+}
+
+
+#endif /* REALM_LIST_HPP */