internal static ResultsHandle CreateResultsHandle(IntPtr resultsPtr) { var resultsHandle = new ResultsHandle(); RuntimeHelpers.PrepareConstrainedRegions(); try { /* Retain handle in a constrained execution region */ } finally { resultsHandle.SetHandle(resultsPtr); } return(resultsHandle); }
public override IRealmCollection <T> Freeze() { if (IsFrozen) { return(this); } var frozenRealm = Realm.Freeze(); var frozenHandle = ResultsHandle.Freeze(frozenRealm.SharedRealmHandle); return(new RealmResults <T>(frozenRealm, Metadata, frozenHandle)); }
public override int IndexOf(T value) { Argument.NotNull(value, nameof(value)); var realmValue = Operator.Convert <T, RealmValue>(value); if (realmValue.Type == RealmValueType.Object && !realmValue.AsRealmObject().IsManaged) { throw new ArgumentException("Value does not belong to a realm", nameof(value)); } return(ResultsHandle.Find(realmValue)); }
public override int IndexOf(T value) { Argument.NotNull(value, nameof(value)); if (_argumentType != (PropertyType.Object | PropertyType.Nullable)) { throw new NotSupportedException("IndexOf on non-object results is not supported."); } var obj = Operator.Convert <T, RealmObject>(value); if (!obj.IsManaged) { throw new ArgumentException("Value does not belong to a realm", nameof(value)); } return(ResultsHandle.Find(obj.ObjectHandle)); }
public override int IndexOf(T value) { Argument.NotNull(value, nameof(value)); if (_argumentType != RealmValueType.Object) { throw new NotSupportedException("IndexOf on non-object results is not supported."); } var obj = value as RealmObjectBase; if (!obj.IsManaged) { throw new ArgumentException("Value does not belong to a realm", nameof(value)); } return(ResultsHandle.Find(obj.ObjectHandle)); }
internal override Expression VisitMethodCall(MethodCallExpression m) { if (m.Method.DeclaringType == typeof(Queryable)) { if (m.Method.Name == nameof(Queryable.Where)) { this.Visit(m.Arguments[0]); LambdaExpression lambda = (LambdaExpression)StripQuotes(m.Arguments[1]); this.Visit(lambda.Body); return(m); } if (m.Method.Name == nameof(Queryable.OrderBy)) { this.Visit(m.Arguments[0]); AddSort((LambdaExpression)StripQuotes(m.Arguments[1]), true, true); return(m); } if (m.Method.Name == nameof(Queryable.OrderByDescending)) { this.Visit(m.Arguments[0]); AddSort((LambdaExpression)StripQuotes(m.Arguments[1]), true, false); return(m); } if (m.Method.Name == nameof(Queryable.ThenBy)) { this.Visit(m.Arguments[0]); AddSort((LambdaExpression)StripQuotes(m.Arguments[1]), false, true); return(m); } if (m.Method.Name == nameof(Queryable.ThenByDescending)) { this.Visit(m.Arguments[0]); AddSort((LambdaExpression)StripQuotes(m.Arguments[1]), false, false); return(m); } if (m.Method.Name == nameof(Queryable.Count)) { RecurseToWhereOrRunLambda(m); var foundCount = _coreQueryHandle.Count(); return(Expression.Constant(foundCount)); } if (m.Method.Name == nameof(Queryable.Any)) { RecurseToWhereOrRunLambda(m); bool foundAny = _coreQueryHandle.FindDirect(IntPtr.Zero) != IntPtr.Zero; return(Expression.Constant(foundAny)); } if (m.Method.Name.StartsWith(nameof(Queryable.First))) { RecurseToWhereOrRunLambda(m); IntPtr firstRowPtr = IntPtr.Zero; if (OptionalSortDescriptorBuilder == null) { firstRowPtr = _coreQueryHandle.FindDirect(IntPtr.Zero); } else { using (ResultsHandle rh = _realm.MakeResultsForQuery(_coreQueryHandle, OptionalSortDescriptorBuilder)) { firstRowPtr = rh.GetRow(0); } } if (firstRowPtr != IntPtr.Zero) { return(Expression.Constant(_realm.MakeObjectForRow(_metadata, firstRowPtr))); } if (m.Method.Name == nameof(Queryable.First)) { throw new InvalidOperationException("Sequence contains no matching element"); } Debug.Assert(m.Method.Name == nameof(Queryable.FirstOrDefault)); return(Expression.Constant(null)); } /* * // FIXME: See discussion in the test DefaultIfEmptyReturnsDefault * // kept because it shows part of what might be a viable implementation if can work out architectural issues * * if (m.Method.Name == nameof(Queryable.DefaultIfEmpty)) * { * RecurseToWhereOrRunLambda(m); * IntPtr firstRowPtr = _coreQueryHandle.FindDirect(IntPtr.Zero); * if (firstRowPtr != IntPtr.Zero) * return m; // as if just a "Where" * var innerType = m.Type.GetGenericArguments()[0]; * var listType = typeof(List<>).MakeGenericType(innerType); * var singleNullItemList = Activator.CreateInstance(listType); * ((IList)singleNullItemList).Add(null); * return Expression.Constant(singleNullItemList); * } */ if (m.Method.Name.StartsWith(nameof(Queryable.Single))) // same as unsorted First with extra checks { RecurseToWhereOrRunLambda(m); var firstRowPtr = _coreQueryHandle.FindDirect(IntPtr.Zero); if (firstRowPtr == IntPtr.Zero) { if (m.Method.Name == nameof(Queryable.Single)) { throw new InvalidOperationException("Sequence contains no matching element"); } Debug.Assert(m.Method.Name == nameof(Queryable.SingleOrDefault)); return(Expression.Constant(null)); } var firstRow = Realm.CreateRowHandle(firstRowPtr, _realm.SharedRealmHandle); IntPtr nextIndex = (IntPtr)(firstRow.RowIndex + 1); var nextRowPtr = _coreQueryHandle.FindDirect(nextIndex); if (nextRowPtr != IntPtr.Zero) { throw new InvalidOperationException("Sequence contains more than one matching element"); } return(Expression.Constant(_realm.MakeObjectForRow(_metadata, firstRow))); } if (m.Method.Name.StartsWith(nameof(Queryable.Last))) { RecurseToWhereOrRunLambda(m); var lastRowPtr = IntPtr.Zero; using (ResultsHandle rh = _realm.MakeResultsForQuery(_coreQueryHandle, OptionalSortDescriptorBuilder)) { var lastIndex = rh.Count() - 1; if (lastIndex >= 0) { lastRowPtr = rh.GetRow(lastIndex); } } if (lastRowPtr != IntPtr.Zero) { return(Expression.Constant(_realm.MakeObjectForRow(_metadata, lastRowPtr))); } if (m.Method.Name == nameof(Queryable.Last)) { throw new InvalidOperationException("Sequence contains no matching element"); } Debug.Assert(m.Method.Name == nameof(Queryable.LastOrDefault)); return(Expression.Constant(null)); } if (m.Method.Name.StartsWith(nameof(Queryable.ElementAt))) { var row = VisitElementAt(m); if (row == null || row.IsInvalid) { if (m.Method.Name == nameof(Queryable.ElementAt)) { throw new ArgumentOutOfRangeException(); } Debug.Assert(m.Method.Name == nameof(Queryable.ElementAtOrDefault)); return(Expression.Constant(null)); } return(Expression.Constant(_realm.MakeObjectForRow(_metadata, row))); } } if (m.Method.DeclaringType == typeof(string)) { QueryHandle.Operation <string> queryMethod = null; if (m.Method == Methods.String.Contains.Value) { queryMethod = (q, c, v) => q.StringContains(c, v); } else if (m.Method == Methods.String.StartsWith.Value) { queryMethod = (q, c, v) => q.StringStartsWith(c, v); } else if (m.Method == Methods.String.EndsWith.Value) { queryMethod = (q, c, v) => q.StringEndsWith(c, v); } else if (m.Method == Methods.String.IsNullOrEmpty.Value) { var member = m.Arguments.SingleOrDefault() as MemberExpression; if (member == null) { throw new NotSupportedException($"The method '{m.Method}' has to be invoked with a RealmObject member"); } var columnIndex = _coreQueryHandle.GetColumnIndex(member.Member.Name); _coreQueryHandle.GroupBegin(); _coreQueryHandle.NullEqual(columnIndex); _coreQueryHandle.Or(); _coreQueryHandle.StringEqual(columnIndex, string.Empty); _coreQueryHandle.GroupEnd(); return(m); } if (queryMethod != null) { var member = m.Object as MemberExpression; if (member == null) { throw new NotSupportedException($"The method '{m.Method}' has to be invoked on a RealmObject member"); } var columnIndex = _coreQueryHandle.GetColumnIndex(member.Member.Name); object argument; if (!TryExtractConstantValue(m.Arguments.SingleOrDefault(), out argument) || argument.GetType() != typeof(string)) { throw new NotSupportedException($"The method '{m.Method}' has to be invoked with a single string constant argument or closure variable"); } queryMethod(_coreQueryHandle, columnIndex, (string)argument); return(m); } } throw new NotSupportedException($"The method '{m.Method.Name}' is not supported"); }
public static extern IntPtr count(ResultsHandle results, out NativeException ex);
public static extern IntPtr snapshot(ResultsHandle results, out NativeException ex);
public static extern IntPtr get_query(ResultsHandle results, out NativeException ex);
public static extern void clear(ResultsHandle results, SharedRealmHandle realmHandle, out NativeException ex);
public static extern bool is_same_internal_results(ResultsHandle lhs, ResultsHandle rhs, out NativeException ex);
internal static extern void clear(ResultsHandle results);
public QueryHandle GetQuery() => ResultsHandle.GetQuery();
internal RealmResults(Realm realm, ResultsHandle handle, RealmObjectBase.Metadata metadata) : this(realm, metadata, new RealmResultsProvider(realm, metadata), null) { _handle = handle; }
public static extern IntPtr add_notification_callback(ResultsHandle results, IntPtr managedResultsHandle, NotificationCallbackDelegate callback, out NativeException ex);
public static extern IntPtr is_same_internal_results(ResultsHandle lhs, ResultsHandle rhs, out NativeException ex);
internal static extern IntPtr count(ResultsHandle results);
public SortDescriptorHandle GetSortDescriptor() => ResultsHandle.GetSortDescriptor();
internal static extern IntPtr add_notification_callback(ResultsHandle results, IntPtr managedResultsHandle, NotificationCallback callback);
internal NotificationTokenHandle(ResultsHandle root) : base(root) { }
public static extern void get_value(ResultsHandle results, IntPtr link_ndx, out PrimitiveValue value, out NativeException ex);
protected override void Unbind() { var managedResultsHandle = ResultsHandle.DestroyNotificationtoken(handle); GCHandle.FromIntPtr(managedResultsHandle).Free(); }
public static extern IntPtr find_object(ResultsHandle results, ObjectHandle objectHandle, out NativeException ex);
public static extern IntPtr get_thread_safe_reference(ResultsHandle results, out NativeException ex);
public static extern bool get_is_frozen(ResultsHandle results, out NativeException ex);
public static extern IntPtr get_filtered_results(ResultsHandle results, [MarshalAs(UnmanagedType.LPWStr)] string query_buf, IntPtr query_len, [MarshalAs(UnmanagedType.LPArray), In] PrimitiveValue[] arguments, IntPtr args_count, out NativeException ex);
public static extern IntPtr get_row(ResultsHandle results, IntPtr index, out NativeException ex);
public static extern IntPtr get_sort_descriptor(ResultsHandle results, out NativeException ex);
internal override Expression VisitMethodCall(MethodCallExpression m) { if (m.Method.DeclaringType == typeof(Queryable)) { if (m.Method.Name == "Where") { this.Visit(m.Arguments[0]); LambdaExpression lambda = (LambdaExpression)StripQuotes(m.Arguments[1]); this.Visit(lambda.Body); return(m); } if (m.Method.Name == "OrderBy") { this.Visit(m.Arguments[0]); AddSort((LambdaExpression)StripQuotes(m.Arguments[1]), true, true); return(m); } if (m.Method.Name == "OrderByDescending") { this.Visit(m.Arguments[0]); AddSort((LambdaExpression)StripQuotes(m.Arguments[1]), true, false); return(m); } if (m.Method.Name == "ThenBy") { this.Visit(m.Arguments[0]); AddSort((LambdaExpression)StripQuotes(m.Arguments[1]), false, true); return(m); } if (m.Method.Name == "ThenByDescending") { this.Visit(m.Arguments[0]); AddSort((LambdaExpression)StripQuotes(m.Arguments[1]), false, false); return(m); } if (m.Method.Name == "Count") { RecurseToWhereOrRunLambda(m); int foundCount = (int)NativeQuery.count(_coreQueryHandle); return(Expression.Constant(foundCount)); } if (m.Method.Name == "Any") { RecurseToWhereOrRunLambda(m); var rowPtr = NativeQuery.findDirect(_coreQueryHandle, IntPtr.Zero); var firstRow = Realm.CreateRowHandle(rowPtr, _realm.SharedRealmHandle); bool foundAny = !firstRow.IsInvalid; return(Expression.Constant(foundAny)); } if (m.Method.Name == "First") { RecurseToWhereOrRunLambda(m); RowHandle firstRow = null; if (_optionalSortOrderHandle == null) { var rowPtr = NativeQuery.findDirect(_coreQueryHandle, IntPtr.Zero); firstRow = Realm.CreateRowHandle(rowPtr, _realm.SharedRealmHandle); } else { using (ResultsHandle rh = _realm.MakeResultsForQuery(_retType, _coreQueryHandle, _optionalSortOrderHandle)) { var rowPtr = NativeResults.get_row(rh, IntPtr.Zero); firstRow = Realm.CreateRowHandle(rowPtr, _realm.SharedRealmHandle); } } if (firstRow == null || firstRow.IsInvalid) { throw new InvalidOperationException("Sequence contains no matching element"); } return(Expression.Constant(_realm.MakeObjectForRow(_retType, firstRow))); } if (m.Method.Name == "Single") // same as unsorted First with extra checks { RecurseToWhereOrRunLambda(m); var rowPtr = NativeQuery.findDirect(_coreQueryHandle, IntPtr.Zero); var firstRow = Realm.CreateRowHandle(rowPtr, _realm.SharedRealmHandle); if (firstRow.IsInvalid) { throw new InvalidOperationException("Sequence contains no matching element"); } IntPtr nextIndex = (IntPtr)(firstRow.RowIndex + 1); var nextRowPtr = NativeQuery.findDirect(_coreQueryHandle, nextIndex); var nextRow = Realm.CreateRowHandle(nextRowPtr, _realm.SharedRealmHandle); if (!nextRow.IsInvalid) { throw new InvalidOperationException("Sequence contains more than one matching element"); } return(Expression.Constant(_realm.MakeObjectForRow(_retType, firstRow))); } } if (m.Method.DeclaringType == typeof(string)) { NativeQuery.Operation <string> queryMethod = null; if (m.Method == Methods.String.Contains.Value) { queryMethod = (q, c, v) => NativeQuery.string_contains(q, c, v, (IntPtr)v.Length); } else if (m.Method == Methods.String.StartsWith.Value) { queryMethod = (q, c, v) => NativeQuery.string_starts_with(q, c, v, (IntPtr)v.Length); } else if (m.Method == Methods.String.EndsWith.Value) { queryMethod = (q, c, v) => NativeQuery.string_ends_with(q, c, v, (IntPtr)v.Length); } if (queryMethod != null) { var member = m.Object as MemberExpression; if (member == null) { throw new NotSupportedException($"The method '{m.Method}' has to be invoked on a RealmObject member"); } var columnIndex = NativeQuery.get_column_index(_coreQueryHandle, member.Member.Name, (IntPtr)member.Member.Name.Length); var argument = ExtractConstantValue(m.Arguments.SingleOrDefault()); if (argument == null || argument.GetType() != typeof(string)) { throw new NotSupportedException($"The method '{m.Method}' has to be invoked with a single string constant argument or closure variable"); } queryMethod(_coreQueryHandle, columnIndex, (string)argument); return(m); } } throw new NotSupportedException($"The method '{m.Method.Name}' is not supported"); }
public static extern IntPtr freeze(ResultsHandle handle, SharedRealmHandle frozen_realm, out NativeException ex);
public static extern IntPtr is_same_internal_results(ResultsHandle lhs, ResultsHandle rhs);
internal override Expression VisitMethodCall(MethodCallExpression m) { if (m.Method.DeclaringType == typeof(Queryable)) { if (m.Method.Name == nameof(Queryable.Where)) { Visit(m.Arguments[0]); var lambda = (LambdaExpression)StripQuotes(m.Arguments[1]); Visit(lambda.Body); return(m); } if (m.Method.Name == nameof(Queryable.OrderBy)) { Visit(m.Arguments[0]); AddSort((LambdaExpression)StripQuotes(m.Arguments[1]), true, true); return(m); } if (m.Method.Name == nameof(Queryable.OrderByDescending)) { Visit(m.Arguments[0]); AddSort((LambdaExpression)StripQuotes(m.Arguments[1]), true, false); return(m); } if (m.Method.Name == nameof(Queryable.ThenBy)) { Visit(m.Arguments[0]); AddSort((LambdaExpression)StripQuotes(m.Arguments[1]), false, true); return(m); } if (m.Method.Name == nameof(Queryable.ThenByDescending)) { Visit(m.Arguments[0]); AddSort((LambdaExpression)StripQuotes(m.Arguments[1]), false, false); return(m); } if (m.Method.Name == nameof(Queryable.Count)) { RecurseToWhereOrRunLambda(m); var foundCount = CoreQueryHandle.Count(); return(Expression.Constant(foundCount)); } if (m.Method.Name == nameof(Queryable.Any)) { RecurseToWhereOrRunLambda(m); var foundAny = CoreQueryHandle.FindDirect(_realm.SharedRealmHandle) != IntPtr.Zero; return(Expression.Constant(foundAny)); } if (m.Method.Name.StartsWith(nameof(Queryable.First))) { RecurseToWhereOrRunLambda(m); var firstObjectPtr = IntPtr.Zero; if (OptionalSortDescriptorBuilder == null) { firstObjectPtr = CoreQueryHandle.FindDirect(_realm.SharedRealmHandle); } else { using (ResultsHandle rh = _realm.MakeResultsForQuery(CoreQueryHandle, OptionalSortDescriptorBuilder)) { firstObjectPtr = rh.GetObjectAtIndex(0); } } if (firstObjectPtr != IntPtr.Zero) { return(Expression.Constant(_realm.MakeObject(_metadata, firstObjectPtr))); } if (m.Method.Name == nameof(Queryable.First)) { throw new InvalidOperationException("Sequence contains no matching element"); } Debug.Assert(m.Method.Name == nameof(Queryable.FirstOrDefault), $"The method {m.Method.Name} is not supported. We expected {nameof(Queryable.FirstOrDefault)}."); return(Expression.Constant(null)); } /* * // FIXME: See discussion in the test DefaultIfEmptyReturnsDefault * // kept because it shows part of what might be a viable implementation if can work out architectural issues * * if (m.Method.Name == nameof(Queryable.DefaultIfEmpty)) * { * RecurseToWhereOrRunLambda(m); * IntPtr firstObjectPtr = _coreQueryHandle.FindDirect(IntPtr.Zero); * if (firstObjectPtr != IntPtr.Zero) * return m; // as if just a "Where" * var innerType = m.Type.GetGenericArguments()[0]; * var listType = typeof(List<>).MakeGenericType(innerType); * var singleNullItemList = Activator.CreateInstance(listType); * ((IList)singleNullItemList).Add(null); * return Expression.Constant(singleNullItemList); * } */ if (m.Method.Name.StartsWith(nameof(Queryable.Single))) // same as unsorted First with extra checks { RecurseToWhereOrRunLambda(m); var firstObjectPtr = CoreQueryHandle.FindDirect(_realm.SharedRealmHandle); if (firstObjectPtr == IntPtr.Zero) { if (m.Method.Name == nameof(Queryable.Single)) { throw new InvalidOperationException("Sequence contains no matching element"); } Debug.Assert(m.Method.Name == nameof(Queryable.SingleOrDefault), $"The method {m.Method.Name} is not supported. We expected {nameof(Queryable.SingleOrDefault)}."); return(Expression.Constant(null)); } var firstObject = Realm.CreateObjectHandle(firstObjectPtr, _realm.SharedRealmHandle); var nextObjectPtr = CoreQueryHandle.FindNext(firstObject); if (nextObjectPtr != IntPtr.Zero) { throw new InvalidOperationException("Sequence contains more than one matching element"); } return(Expression.Constant(_realm.MakeObject(_metadata, firstObject))); } if (m.Method.Name.StartsWith(nameof(Queryable.Last))) { RecurseToWhereOrRunLambda(m); var lastObjectPtr = IntPtr.Zero; using (ResultsHandle rh = _realm.MakeResultsForQuery(CoreQueryHandle, OptionalSortDescriptorBuilder)) { var lastIndex = rh.Count() - 1; if (lastIndex >= 0) { lastObjectPtr = rh.GetObjectAtIndex(lastIndex); } } if (lastObjectPtr != IntPtr.Zero) { return(Expression.Constant(_realm.MakeObject(_metadata, lastObjectPtr))); } if (m.Method.Name == nameof(Queryable.Last)) { throw new InvalidOperationException("Sequence contains no matching element"); } Debug.Assert(m.Method.Name == nameof(Queryable.LastOrDefault), $"The method {m.Method.Name} is not supported. We expected {nameof(Queryable.LastOrDefault)}."); return(Expression.Constant(null)); } if (m.Method.Name.StartsWith(nameof(Queryable.ElementAt))) { Visit(m.Arguments.First()); object argument; if (!TryExtractConstantValue(m.Arguments.Last(), out argument) || argument.GetType() != typeof(int)) { throw new NotSupportedException($"The method '{m.Method}' has to be invoked with a single integer constant argument or closure variable"); } IntPtr objectPtr; var index = (int)argument; if (OptionalSortDescriptorBuilder == null) { objectPtr = CoreQueryHandle.FindDirect(_realm.SharedRealmHandle, (IntPtr)index); } else { using (var rh = _realm.MakeResultsForQuery(CoreQueryHandle, OptionalSortDescriptorBuilder)) { objectPtr = rh.GetObjectAtIndex(index); } } if (objectPtr != IntPtr.Zero) { var objectHandle = Realm.CreateObjectHandle(objectPtr, _realm.SharedRealmHandle); return(Expression.Constant(_realm.MakeObject(_metadata, objectHandle))); } if (m.Method.Name == nameof(Queryable.ElementAt)) { throw new ArgumentOutOfRangeException(); } Debug.Assert(m.Method.Name == nameof(Queryable.ElementAtOrDefault), $"The method {m.Method.Name} is not supported. We expected {nameof(Queryable.ElementAtOrDefault)}."); return(Expression.Constant(null)); } } if (m.Method.DeclaringType == typeof(string) || m.Method.DeclaringType == typeof(StringExtensions)) { QueryHandle.Operation <string> queryMethod = null; // For extension methods, member should be m.Arguments[0] as MemberExpression; MemberExpression member = null; // For extension methods, that should be 1 var stringArgumentIndex = 0; if (m.Method == Methods.String.Contains.Value) { queryMethod = (q, c, v) => q.StringContains(c, v, caseSensitive: true); } else if (m.Method == Methods.String.ContainsStringComparison.Value) { member = m.Arguments[0] as MemberExpression; stringArgumentIndex = 1; queryMethod = (q, c, v) => q.StringContains(c, v, GetComparisonCaseSensitive(m)); } else if (m.Method == Methods.String.StartsWith.Value) { queryMethod = (q, c, v) => q.StringStartsWith(c, v, caseSensitive: true); } else if (m.Method == Methods.String.StartsWithStringComparison.Value) { queryMethod = (q, c, v) => q.StringStartsWith(c, v, GetComparisonCaseSensitive(m)); } else if (m.Method == Methods.String.EndsWith.Value) { queryMethod = (q, c, v) => q.StringEndsWith(c, v, caseSensitive: true); } else if (m.Method == Methods.String.EndsWithStringComparison.Value) { queryMethod = (q, c, v) => q.StringEndsWith(c, v, GetComparisonCaseSensitive(m)); } else if (m.Method == Methods.String.IsNullOrEmpty.Value) { member = m.Arguments.SingleOrDefault() as MemberExpression; if (member == null) { throw new NotSupportedException($"The method '{m.Method}' has to be invoked with a RealmObject member"); } var columnIndex = CoreQueryHandle.GetColumnIndex(member.Member.Name); CoreQueryHandle.GroupBegin(); CoreQueryHandle.NullEqual(columnIndex); CoreQueryHandle.Or(); CoreQueryHandle.StringEqual(columnIndex, string.Empty, caseSensitive: true); CoreQueryHandle.GroupEnd(); return(m); } else if (m.Method == Methods.String.EqualsMethod.Value) { queryMethod = (q, c, v) => q.StringEqual(c, v, caseSensitive: true); } else if (m.Method == Methods.String.EqualsStringComparison.Value) { queryMethod = (q, c, v) => q.StringEqual(c, v, GetComparisonCaseSensitive(m)); } else if (m.Method == Methods.String.Like.Value) { member = m.Arguments[0] as MemberExpression; stringArgumentIndex = 1; object caseSensitive; if (!TryExtractConstantValue(m.Arguments.Last(), out caseSensitive) || !(caseSensitive is bool)) { throw new NotSupportedException($"The method '{m.Method}' has to be invoked with a string and boolean constant arguments."); } queryMethod = (q, c, v) => q.StringLike(c, v, (bool)caseSensitive); } if (queryMethod != null) { member = member ?? m.Object as MemberExpression; if (member == null) { throw new NotSupportedException($"The method '{m.Method}' has to be invoked on a RealmObject member"); } var columnIndex = CoreQueryHandle.GetColumnIndex(member.Member.Name); object argument; if (!TryExtractConstantValue(m.Arguments[stringArgumentIndex], out argument) || (argument != null && argument.GetType() != typeof(string))) { throw new NotSupportedException($"The method '{m.Method}' has to be invoked with a single string constant argument or closure variable"); } queryMethod(CoreQueryHandle, columnIndex, (string)argument); return(m); } } throw new NotSupportedException($"The method '{m.Method.Name}' is not supported"); }
internal static extern IntPtr get_row(ResultsHandle results, IntPtr index);