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11 changes: 6 additions & 5 deletions src/Shared/StackTrace/StackFrame/StackTraceHelper.cs
Original file line number Diff line number Diff line change
Expand Up @@ -10,12 +10,13 @@
using System.Runtime.CompilerServices;
using System.Runtime.ExceptionServices;
using Microsoft.Extensions.Internal;
#nullable enable

namespace Microsoft.Extensions.StackTrace.Sources
{
internal class StackTraceHelper
{
public static IList<StackFrameInfo> GetFrames(Exception exception, out AggregateException error)
public static IList<StackFrameInfo> GetFrames(Exception exception, out AggregateException? error)
{
var frames = new List<StackFrameInfo>();

Expand All @@ -35,7 +36,7 @@ public static IList<StackFrameInfo> GetFrames(Exception exception, out Aggregate
return frames;
}

List<Exception> exceptions = null;
List<Exception>? exceptions = null;

for (var i = 0; i < stackFrames.Length; i++)
{
Expand Down Expand Up @@ -69,7 +70,7 @@ public static IList<StackFrameInfo> GetFrames(Exception exception, out Aggregate
return frames;
}

internal static MethodDisplayInfo GetMethodDisplayString(MethodBase method)
internal static MethodDisplayInfo? GetMethodDisplayString(MethodBase? method)
{
// Special case: no method available
if (method == null)
Expand Down Expand Up @@ -145,7 +146,7 @@ internal static MethodDisplayInfo GetMethodDisplayString(MethodBase method)
return methodDisplayInfo;
}

private static bool ShowInStackTrace(MethodBase method)
private static bool ShowInStackTrace(MethodBase? method)
{
Debug.Assert(method != null);

Expand Down Expand Up @@ -191,7 +192,7 @@ private static bool ShowInStackTrace(MethodBase method)
return true;
}

private static bool TryResolveStateMachineMethod(ref MethodBase method, out Type declaringType)
private static bool TryResolveStateMachineMethod(ref MethodBase method, out Type? declaringType)
{
Debug.Assert(method != null);
Debug.Assert(method.DeclaringType != null);
Expand Down