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66 lines
2.1 KiB
66 lines
2.1 KiB
////////////////////////////////////////////////////////////////////////////
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//
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// Copyright 2015 Realm Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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////////////////////////////////////////////////////////////////////////////
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import Realm
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/// A protocol describing types that can parameterize a `RealmOptional`.
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public protocol RealmOptionalType {
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}
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public extension RealmOptionalType {
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/// :nodoc:
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static func className() -> String {
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return ""
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}
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}
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extension Int: RealmOptionalType {}
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extension Int8: RealmOptionalType {}
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extension Int16: RealmOptionalType {}
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extension Int32: RealmOptionalType {}
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extension Int64: RealmOptionalType {}
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extension Float: RealmOptionalType {}
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extension Double: RealmOptionalType {}
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extension Bool: RealmOptionalType {}
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/**
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A `RealmOptional` instance represents an optional value for types that can't be
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directly declared as `@objc` in Swift, such as `Int`, `Float`, `Double`, and `Bool`.
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To change the underlying value stored by a `RealmOptional` instance, mutate the instance's `value` property.
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*/
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public final class RealmOptional<Value: RealmOptionalType>: RLMOptionalBase {
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/// The value the optional represents.
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public var value: Value? {
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get {
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return RLMGetOptional(self).map(dynamicBridgeCast)
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}
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set {
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RLMSetOptional(self, newValue.map(dynamicBridgeCast))
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}
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}
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/**
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Creates a `RealmOptional` instance encapsulating the given default value.
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- parameter value: The value to store in the optional, or `nil` if not specified.
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*/
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public init(_ value: Value? = nil) {
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super.init()
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self.value = value
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}
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}
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