chore: rename parameter

Author: ph1ps

README.md

@@ -112,7 +112,7 @@ $`g(x) = random[0, f(x)[`$ where `x` is the current attempt and `f(x)` the base
 ```swift
 @available(iOS 18.0, macOS 15.0, macCatalyst 18.0, tvOS 18.0, watchOS 11.0, visionOS 2.0, *)
 extension BackoffStrategy where C.Duration == Duration {
-  public func jitter<T>(_ generator: T = SystemRandomNumberGenerator()) -> Self where T: RandomNumberGenerator { ... }
+  public func jitter<T>(using generator: T = SystemRandomNumberGenerator()) -> Self where T: RandomNumberGenerator { ... }
 }
 ```
 

Sources/Retry/Retry.swift

@@ -6,9 +6,7 @@ import _PowShims
 /// This can be useful for implementing retry policies with increasing delays between attempts.
 public struct BackoffStrategy<C> where C: Clock {
   public let duration: (Int) -> C.Duration
-  public init(duration: @escaping (Int) -> C.Duration) {
-    self.duration = duration
-  }
+  public init(duration: @escaping (Int) -> C.Duration) { self.duration = duration }
 }
 
 extension BackoffStrategy {
@@ -64,7 +62,7 @@ extension BackoffStrategy where C.Duration == Duration {
   /// Jitter can help reduce contention when multiple sources retry concurrently in distributed systems.
   /// - Parameter generator: A custom random number generator conforming to the `RandomNumberGenerator` protocol. Defaults to `SystemRandomNumberGenerator`.
   /// - Note: `g(x) = random[0, f(x)[` where `x` is the current attempt and `f(x)` the base backoff strategy.
-  public func jitter<T>(_ generator: T = SystemRandomNumberGenerator()) -> Self where T: RandomNumberGenerator {
+  public func jitter<T>(using generator: T = SystemRandomNumberGenerator()) -> Self where T: RandomNumberGenerator {
     var generator = generator
     let attosecondsPerSecond: Int128 = 1_000_000_000_000_000_000
     return .init { attempt in

Tests/RetryTests/RetryTests.swift

@@ -119,7 +119,7 @@ struct CustomError: Error { }
 
 @available(iOS 18.0, macOS 15.0, macCatalyst 18.0, tvOS 18.0, watchOS 11.0, visionOS 2.0, *)
 @Test func testJitterBackoffStrategy() {
-  let strategy = BackoffStrategy<ContinuousClock>.exponential(a: .seconds(3), b: 2).jitter(Xoshiro(seed: 1))
+  let strategy = BackoffStrategy<ContinuousClock>.exponential(a: .seconds(3), b: 2).jitter(using: Xoshiro(seed: 1))
   #expect(strategy.duration(0) == .init(secondsComponent: 2, attosecondsComponent: 162894527200761519))
   #expect(strategy.duration(1) == .init(secondsComponent: 5, attosecondsComponent: 574149987820172283))
   #expect(strategy.duration(2) == .init(secondsComponent: 0, attosecondsComponent: 699421850917031809))