mirror of https://github.com/apple/pkl-swift
52 lines
1.8 KiB
Swift
52 lines
1.8 KiB
Swift
//===----------------------------------------------------------------------===//
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// Copyright © 2025 Apple Inc. and the Pkl project authors. All rights reserved.
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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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// https://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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import Foundation
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import PklSwift
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@main
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struct TestExternalReader {
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static func main() async throws {
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let client = ExternalReaderClient(
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options: ExternalReaderClientOptions(
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resourceReaders: [FibReader()]
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))
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try await client.run()
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}
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}
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struct FibReader: ResourceReader {
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var scheme: String { "fib" }
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var isGlobbable: Bool { false }
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var hasHierarchicalUris: Bool { false }
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func listElements(uri: URL) async throws -> [PathElement] { throw PklError("not implemented") }
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func read(url: URL) async throws -> [UInt8] {
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let key = url.absoluteString.dropFirst(self.scheme.count + 1)
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guard let n = Int(key), n > 0 else {
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throw PklError("input uri must be in format fib:<positive integer>")
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}
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return Array(String(fibonacci(n: n)).utf8)
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}
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}
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func fibonacci(n: Int) -> Int {
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var (a, b) = (0, 1)
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for _ in 0..<n {
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(a, b) = (b, a + b)
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}
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return a
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}
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