Fix null check in S.Diagnostics.Contract regressed by nullability ann…

…otations (dotnet#41382) * Fix null check in S.Diagnostics.Contract regressed by nullability annotations * fix product per Jan's recommendation
monojenkins · Aug 27, 2020 · 2337a35 · 2337a35
1 parent 2f1ece1
commit 2337a35
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/libraries/System.Private.CoreLib/src/System/Diagnostics/Contracts/Contracts.cs b/src/libraries/System.Private.CoreLib/src/System/Diagnostics/Contracts/Contracts.cs
@@ -628,7 +628,7 @@ private static void AssertMustUseRewriter(ContractFailureKind kind, string contr
             Assembly? probablyNotRewritten = null;
             for (int i = 0; i < stack.FrameCount; i++)
             {
-                Assembly? caller = stack.GetFrame(i)!.GetMethod()?.DeclaringType!.Assembly;
+                Assembly? caller = stack.GetFrame(i)!.GetMethod()?.DeclaringType?.Assembly;
                 if (caller != null && caller != thisAssembly)
                 {
                     probablyNotRewritten = caller;