| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| */ |
| |
| public struct AnyPTransform: _PrimitivePTransform { |
| let type: Any.Type |
| var transform: Any |
| |
| let expandClosure: (Any) -> AnyPTransform |
| let expansionType: Any.Type |
| |
| public init<T>(_ transform: T) where T: PTransform { |
| if let anyTransform = transform as? AnyPTransform { |
| self = anyTransform |
| } else { |
| type = T.self |
| expansionType = T.Expansion.self |
| self.transform = transform |
| expandClosure = { AnyPTransform(($0 as! T).expand) } |
| } |
| } |
| } |
| |
| public func mapAnyPTransform<T, P>(_ anyPTransform: AnyPTransform, transform: (P) -> T) -> T? { |
| guard let ptransform = anyPTransform.transform as? P else { return nil } |
| return transform(ptransform) |
| } |
| |
| extension AnyPTransform: ParentPTransform { |
| public var children: [AnyPTransform] { |
| (transform as? ParentPTransform)?.children ?? [] |
| } |
| } |
