Fix SA1203/S109

src/Polly/PolicyBase.cs

@@ -5,6 +5,11 @@
 /// </summary>
 public abstract partial class PolicyBase
 {
+    /// <summary>
+    /// Defines a value to use for continueOnCaptureContext, when none is supplied.
+    /// </summary>
+    internal const bool DefaultContinueOnCapturedContext = false;
+
     /// <summary>
     /// Predicates indicating which exceptions the policy handles.
     /// </summary>
@@ -15,11 +20,6 @@ public abstract partial class PolicyBase
     /// </summary>
     internal readonly CancellationToken DefaultCancellationToken = CancellationToken.None;
 
-    /// <summary>
-    /// Defines a value to use for continueOnCaptureContext, when none is supplied.
-    /// </summary>
-    internal const bool DefaultContinueOnCapturedContext = false;
-
     internal static ExceptionType GetExceptionType(ExceptionPredicates exceptionPredicates, Exception exception)
     {
         bool isExceptionTypeHandledByThisPolicy = exceptionPredicates.FirstMatchOrDefault(exception) != null;

src/Polly/PolicyResult.cs

@@ -132,12 +132,21 @@ public static PolicyResult<TResult> Successful(TResult result, Context context)
     /// <returns>
     /// A <see cref="PolicyResult" /> representing a failed execution through the policy.
     /// </returns>
-    public static PolicyResult<TResult> Failure(Exception exception, ExceptionType exceptionType, Context context) =>
-        new(default, OutcomeType.Failure, exception, exceptionType, default,
-            exceptionType == Polly.ExceptionType.HandledByThisPolicy
-                ? Polly.FaultType.ExceptionHandledByThisPolicy
-                : Polly.FaultType.UnhandledException,
+    public static PolicyResult<TResult> Failure(Exception exception, ExceptionType exceptionType, Context context)
+    {
+        var faultType = exceptionType == Polly.ExceptionType.HandledByThisPolicy
+            ? Polly.FaultType.ExceptionHandledByThisPolicy
+            : Polly.FaultType.UnhandledException;
+
+        return new PolicyResult<TResult>(
+            default,
+            OutcomeType.Failure,
+            exception,
+            exceptionType,
+            default,
+            faultType,
             context);
+    }
 
     /// <summary>
     /// Builds a <see cref="PolicyResult" /> representing a failed execution through the policy.

src/Polly/Polly.csproj

@@ -8,8 +8,8 @@
     <IncludePollyUsings>true</IncludePollyUsings>
     <NoWarn>$(NoWarn);IDE0011;SA1501;S103;IDE0055;S3872;SA1402;SA1414;S3215;S2955</NoWarn>
     <NoWarn>$(NoWarn);IDE1006;CA1062;S107;CA1068;S4039;CA1000;CA1063;CA1031;CA1051</NoWarn>
-    <NoWarn>$(NoWarn);SA1612;CA2211;S2223;CA1032;CA1815;CA1816;S4457;SA1615;S109;SA1618;CA1033</NoWarn>
-    <NoWarn>$(NoWarn);SA1515;S4023;CA1010;S2681;S3442;S3880;CA1064;SA1203;SA1649;SA1625;SA1623;SA1118</NoWarn>
+    <NoWarn>$(NoWarn);SA1612;CA2211;S2223;CA1032;CA1815;CA1816;S4457;SA1615;SA1618;CA1033</NoWarn>
+    <NoWarn>$(NoWarn);SA1515;S4023;CA1010;S2681;S3442;S3880;CA1064;SA1649;SA1625;SA1623;SA1118</NoWarn>
     <NoWarn>$(NoWarn);S3253;S3971;S6605;CA1724;CA1716;SA1108;CA1710;S4049;S3246</NoWarn>
     <NoWarn>$(NoWarn);CA1805;CA1821</NoWarn>
 

src/Polly/Retry/AsyncRetryPolicy.cs

@@ -26,9 +26,18 @@ internal AsyncRetryPolicy(
 
     /// <inheritdoc/>
     [DebuggerStepThrough]
-    protected override Task<TResult> ImplementationAsync<TResult>(Func<Context, CancellationToken, Task<TResult>> action, Context context, CancellationToken cancellationToken,
-        bool continueOnCapturedContext) =>
-        AsyncRetryEngine.ImplementationAsync(
+
+    protected override Task<TResult> ImplementationAsync<TResult>(
+        Func<Context, CancellationToken, Task<TResult>> action,
+        Context context,
+        CancellationToken cancellationToken,
+        bool continueOnCapturedContext)
+    {
+        var sleepDurationProvider = _sleepDurationProvider != null
+            ? (retryCount, outcome, ctx) => _sleepDurationProvider(retryCount, outcome.Exception, ctx)
+            : (Func<int, DelegateResult<TResult>, Context, TimeSpan>)null;
+
+        return AsyncRetryEngine.ImplementationAsync(
             action,
             context,
             cancellationToken,
@@ -37,10 +46,9 @@ protected override Task<TResult> ImplementationAsync<TResult>(Func<Context, Canc
             (outcome, timespan, retryCount, ctx) => _onRetryAsync(outcome.Exception, timespan, retryCount, ctx),
             _permittedRetryCount,
             _sleepDurationsEnumerable,
-            _sleepDurationProvider != null
-                ? (retryCount, outcome, ctx) => _sleepDurationProvider(retryCount, outcome.Exception, ctx)
-                : (Func<int, DelegateResult<TResult>, Context, TimeSpan>) null,
+            sleepDurationProvider,
             continueOnCapturedContext);
+    }
 }
 
 /// <summary>

src/Polly/Retry/RetryPolicy.cs

@@ -26,19 +26,22 @@ internal RetryPolicy(
     }
 
     /// <inheritdoc/>
-    protected override TResult Implementation<TResult>(Func<Context, CancellationToken, TResult> action, Context context, CancellationToken cancellationToken) =>
-        RetryEngine.Implementation(
-            action,
+    protected override TResult Implementation<TResult>(Func<Context, CancellationToken, TResult> action, Context context, CancellationToken cancellationToken)
+    {
+        var sleepDurationProvider = _sleepDurationProvider != null
+            ? (retryCount, outcome, ctx) => _sleepDurationProvider(retryCount, outcome.Exception, ctx)
+            : (Func<int, DelegateResult<TResult>, Context, TimeSpan>?)null;
+
+        return RetryEngine.Implementation(action,
             context,
             cancellationToken,
             ExceptionPredicates,
             ResultPredicates<TResult>.None,
             (outcome, timespan, retryCount, ctx) => _onRetry(outcome.Exception, timespan, retryCount, ctx),
             _permittedRetryCount,
             _sleepDurationsEnumerable,
-            _sleepDurationProvider != null
-                ? (retryCount, outcome, ctx) => _sleepDurationProvider(retryCount, outcome.Exception, ctx)
-                : (Func<int, DelegateResult<TResult>, Context, TimeSpan>?) null);
+            sleepDurationProvider);
+    }
 }
 
 /// <summary>

src/Polly/Utilities/KeyHelper.cs

@@ -3,6 +3,8 @@ namespace Polly.Utilities;
 
 internal static class KeyHelper
 {
+    private const int GuidPartLength = 8;
+
     public static string GuidPart() =>
-        Guid.NewGuid().ToString().Substring(0, 8);
+        Guid.NewGuid().ToString().Substring(0, GuidPartLength);
 }

src/Polly/Wrap/AsyncPolicyWrapSyntax.cs

@@ -119,6 +119,8 @@ public AsyncPolicyWrap<TResult> WrapAsync(IAsyncPolicy<TResult> innerPolicy)
 
 public partial class Policy
 {
+    private const int MinimumPoliciesRequiredForWrap = 2;
+
     /// <summary>
     /// Creates a <see cref="PolicyWrap" /> of the given policies.
     /// </summary>
@@ -128,8 +130,8 @@ public partial class Policy
     public static AsyncPolicyWrap WrapAsync(params IAsyncPolicy[] policies) =>
         policies.Length switch
         {
-            0 or 1 => throw new ArgumentException("The enumerable of policies to form the wrap must contain at least two policies.", nameof(policies)),
-            2 => new AsyncPolicyWrap((AsyncPolicy)policies[0], policies[1]),
+            < MinimumPoliciesRequiredForWrap => throw new ArgumentException("The enumerable of policies to form the wrap must contain at least two policies.", nameof(policies)),
+            MinimumPoliciesRequiredForWrap => new AsyncPolicyWrap((AsyncPolicy)policies[0], policies[1]),
             _ => WrapAsync(policies[0], WrapAsync(policies.Skip(1).ToArray())),
         };
 
@@ -143,8 +145,8 @@ public static AsyncPolicyWrap WrapAsync(params IAsyncPolicy[] policies) =>
     public static AsyncPolicyWrap<TResult> WrapAsync<TResult>(params IAsyncPolicy<TResult>[] policies) =>
         policies.Length switch
         {
-            0 or 1 => throw new ArgumentException("The enumerable of policies to form the wrap must contain at least two policies.", nameof(policies)),
-            2 => new AsyncPolicyWrap<TResult>((AsyncPolicy<TResult>)policies[0], policies[1]),
+            < MinimumPoliciesRequiredForWrap => throw new ArgumentException("The enumerable of policies to form the wrap must contain at least two policies.", nameof(policies)),
+            MinimumPoliciesRequiredForWrap => new AsyncPolicyWrap<TResult>((AsyncPolicy<TResult>)policies[0], policies[1]),
             _ => WrapAsync(policies[0], WrapAsync(policies.Skip(1).ToArray())),
         };
 }

src/Polly/Wrap/PolicyWrapSyntax.cs

@@ -128,8 +128,8 @@ public partial class Policy
     public static PolicyWrap Wrap(params ISyncPolicy[] policies) =>
         policies.Length switch
         {
-            0 or 1 => throw new ArgumentException("The enumerable of policies to form the wrap must contain at least two policies.", nameof(policies)),
-            2 => new PolicyWrap((Policy)policies[0], policies[1]),
+            < MinimumPoliciesRequiredForWrap => throw new ArgumentException("The enumerable of policies to form the wrap must contain at least two policies.", nameof(policies)),
+            MinimumPoliciesRequiredForWrap => new PolicyWrap((Policy)policies[0], policies[1]),
             _ => Wrap(policies[0], Wrap(policies.Skip(1).ToArray())),
         };
 
@@ -143,8 +143,8 @@ public static PolicyWrap Wrap(params ISyncPolicy[] policies) =>
     public static PolicyWrap<TResult> Wrap<TResult>(params ISyncPolicy<TResult>[] policies) =>
         policies.Length switch
         {
-            0 or 1 => throw new ArgumentException("The enumerable of policies to form the wrap must contain at least two policies.", nameof(policies)),
-            2 => new PolicyWrap<TResult>((Policy<TResult>)policies[0], policies[1]),
+            < MinimumPoliciesRequiredForWrap => throw new ArgumentException("The enumerable of policies to form the wrap must contain at least two policies.", nameof(policies)),
+            MinimumPoliciesRequiredForWrap => new PolicyWrap<TResult>((Policy<TResult>)policies[0], policies[1]),
             _ => Wrap(policies[0], Wrap(policies.Skip(1).ToArray())),
         };
 }