Skymly · Skymly · Jul 4, 2026 · Jul 2, 2026 · Jul 4, 2026
diff --git a/DesignPatterns.SourceGenerators/Syntax/GeneratedCodeHelper.cs b/DesignPatterns.SourceGenerators/Syntax/GeneratedCodeHelper.cs
@@ -14,17 +14,35 @@ namespace DesignPatterns.SourceGenerators.Syntax;
 /// </summary>
 internal static class GeneratedCodeHelper
 {
+    /// <summary>
+    /// Warning codes suppressed in generated code via <c>#pragma warning disable</c>.
+    /// These are warnings that generated code may trigger but that consumers
+    /// should not see (especially under <c>TreatWarningsAsErrors</c>).
+    /// </summary>
+    internal const string PragmaWarningDisableCodes = "CS1591,CS8019,CS0162,CS0612,CS0618";
+
     /// <summary>
     /// Creates the standard <c>// &lt;auto-generated /&gt;</c> header trivia
-    /// followed by a generator-specific comment and a blank line.
+    /// followed by a generator-specific comment, <c>#pragma warning disable</c>
+    /// for generated-code-safe warnings, and a blank line.
     /// </summary>
-    internal static SyntaxTriviaList CreateAutoGeneratedHeader(string generatorName) =>
-        SyntaxFactory.TriviaList(
+    internal static SyntaxTriviaList CreateAutoGeneratedHeader(string generatorName)
+    {
+        var pragmaTrivia = SyntaxFactory.ParseLeadingTrivia($"#pragma warning disable {PragmaWarningDisableCodes}\n");
+
+        var builder = new List<SyntaxTrivia>
+        {
             SyntaxFactory.Comment("// <auto-generated />"),
             SyntaxFactory.EndOfLine("\n"),
             SyntaxFactory.Comment($"// Generated by DesignPatterns.SourceGenerators.{generatorName}"),
             SyntaxFactory.EndOfLine("\n"),
-            SyntaxFactory.EndOfLine("\n"));
+            SyntaxFactory.EndOfLine("\n"),
+        };
+        builder.AddRange(pragmaTrivia);
+        builder.Add(SyntaxFactory.EndOfLine("\n"));
+
+        return SyntaxFactory.TriviaList(builder);
+    }
 
     /// <summary>
     /// Creates a <c>#nullable enable</c> preprocessor directive trivia.

diff --git a/...nerators/CompositePartGeneratorTests.EmitsRegisterDiWhenDiIntegrationEnabled.verified.txt b/...nerators/CompositePartGeneratorTests.EmitsRegisterDiWhenDiIntegrationEnabled.verified.txt
@@ -112,6 +112,7 @@ namespace TestAssembly
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.CompositePartGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 ,
   IMenuNode.MenuNodeCompositeCatalog.g.cs:
 using System;
@@ -179,6 +180,7 @@ namespace TestAssembly
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.CompositePartGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 ,
   IMenuNode.MenuNodeCompositeKeys.g.cs:
 using System;
@@ -203,5 +205,6 @@ namespace TestAssembly
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.CompositePartGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 
 }
diff --git a/...nerators/CompositePartGeneratorTests.GeneratesForestCatalogWithMultipleRoots.verified.txt b/...nerators/CompositePartGeneratorTests.GeneratesForestCatalogWithMultipleRoots.verified.txt
@@ -112,6 +112,7 @@ namespace TestAssembly
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.CompositePartGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 ,
   IMenuNode.MenuNodeCompositeCatalog.g.cs:
 using System;
@@ -150,6 +151,7 @@ namespace TestAssembly
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.CompositePartGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 ,
   IMenuNode.MenuNodeCompositeKeys.g.cs:
 using System;
@@ -174,5 +176,6 @@ namespace TestAssembly
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.CompositePartGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 
 }
diff --git a/...erators.Tests/Generators/CompositePartGeneratorTests.GeneratesKeysAndCatalog.verified.txt b/...erators.Tests/Generators/CompositePartGeneratorTests.GeneratesKeysAndCatalog.verified.txt
@@ -131,6 +131,7 @@ namespace TestAssembly
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.CompositePartGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 ,
   IMenuNode.MenuNodeCompositeCatalog.g.cs:
 using System;
@@ -170,6 +171,7 @@ namespace TestAssembly
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.CompositePartGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 ,
   IMenuNode.MenuNodeCompositeKeys.g.cs:
 using System;
@@ -198,5 +200,6 @@ namespace TestAssembly
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.CompositePartGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 
 }
diff --git a/...s/CompositePartGeneratorTests.GeneratesKeysAndCatalogWithNonGenericAttribute.verified.txt b/...s/CompositePartGeneratorTests.GeneratesKeysAndCatalogWithNonGenericAttribute.verified.txt
@@ -93,6 +93,7 @@ namespace TestAssembly
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.CompositePartGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 ,
   IMenuNode.MenuNodeCompositeCatalog.g.cs:
 using System;
@@ -130,6 +131,7 @@ namespace TestAssembly
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.CompositePartGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 ,
   IMenuNode.MenuNodeCompositeKeys.g.cs:
 using System;
@@ -150,5 +152,6 @@ namespace TestAssembly
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.CompositePartGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 
 }
diff --git a/...s/Generators/DecoratorGeneratorTests.EmitsRegisterDiWhenDiIntegrationEnabled.verified.txt b/...s/Generators/DecoratorGeneratorTests.EmitsRegisterDiWhenDiIntegrationEnabled.verified.txt
@@ -18,6 +18,7 @@ namespace TestAssembly
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.DecoratorGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 ,
   IPaymentService.PaymentServiceDecoratorStack.g.cs:
 using System;
@@ -61,5 +62,6 @@ namespace TestAssembly
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.DecoratorGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 
 }
diff --git a/...atorGeneratorTests.EmitsRegisterDiWithAsyncDecoratorWhenDiIntegrationEnabled.verified.txt b/...atorGeneratorTests.EmitsRegisterDiWithAsyncDecoratorWhenDiIntegrationEnabled.verified.txt
@@ -18,6 +18,7 @@ namespace TestAssembly
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.DecoratorGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 ,
   IPaymentService.PaymentServiceDecoratorStack.g.cs:
 using System;
@@ -69,5 +70,6 @@ namespace TestAssembly
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.DecoratorGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 
 }
diff --git a/...rators.Tests/Generators/DecoratorGeneratorTests.GeneratesAsyncDecoratorStack.verified.txt b/...rators.Tests/Generators/DecoratorGeneratorTests.GeneratesAsyncDecoratorStack.verified.txt
@@ -18,6 +18,7 @@ namespace TestAssembly
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.DecoratorGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 ,
   IPaymentService.PaymentServiceDecoratorStack.g.cs:
 using System;
@@ -50,5 +51,6 @@ namespace TestAssembly
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.DecoratorGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 
 }
diff --git a/...rs.Tests/Generators/DecoratorGeneratorTests.GeneratesDecoratorOrderConstants.verified.txt b/...rs.Tests/Generators/DecoratorGeneratorTests.GeneratesDecoratorOrderConstants.verified.txt
@@ -22,6 +22,7 @@ namespace TestAssembly
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.DecoratorGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 ,
   IPaymentService.PaymentServiceDecoratorStack.g.cs:
 using System;
@@ -46,5 +47,6 @@ namespace TestAssembly
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.DecoratorGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 
 }
diff --git a/...eGenerators.Tests/Generators/DecoratorGeneratorTests.GeneratesDecoratorStack.verified.txt b/...eGenerators.Tests/Generators/DecoratorGeneratorTests.GeneratesDecoratorStack.verified.txt
@@ -22,6 +22,7 @@ namespace TestAssembly
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.DecoratorGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 ,
   IPaymentService.PaymentServiceDecoratorStack.g.cs:
 using System;
@@ -46,5 +47,6 @@ namespace TestAssembly
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.DecoratorGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 
 }
diff --git a/.../Generators/DecoratorGeneratorTests.GeneratesMixedSyncAndAsyncDecoratorStack.verified.txt b/.../Generators/DecoratorGeneratorTests.GeneratesMixedSyncAndAsyncDecoratorStack.verified.txt
@@ -22,6 +22,7 @@ namespace TestAssembly
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.DecoratorGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 ,
   IPaymentService.PaymentServiceDecoratorStack.g.cs:
 using System;
@@ -54,5 +55,6 @@ namespace TestAssembly
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.DecoratorGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 
 }
diff --git a/...sts/Generators/DecoratorGeneratorTests.GeneratesStackWithNonGenericAttribute.verified.txt b/...sts/Generators/DecoratorGeneratorTests.GeneratesStackWithNonGenericAttribute.verified.txt
@@ -18,6 +18,7 @@ namespace TestAssembly
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.DecoratorGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 ,
   IPaymentService.PaymentServiceDecoratorStack.g.cs:
 using System;
@@ -42,5 +43,6 @@ namespace TestAssembly
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.DecoratorGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 
 }
diff --git a/...s/Generators/GenerateSingletonGeneratorTests.GeneratesNonThreadSafeSingleton.verified.txt b/...s/Generators/GenerateSingletonGeneratorTests.GeneratesNonThreadSafeSingleton.verified.txt
@@ -28,5 +28,6 @@ namespace TestAssembly
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.GenerateSingletonGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 
 }
diff --git a/...ests/Generators/GenerateSingletonGeneratorTests.GeneratesThreadSafeSingleton.verified.txt b/...ests/Generators/GenerateSingletonGeneratorTests.GeneratesThreadSafeSingleton.verified.txt
@@ -28,5 +28,6 @@ namespace TestAssembly
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.GenerateSingletonGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 
 }
diff --git a/...erators.Tests/Generators/HandlerOrderGeneratorTests.GeneratesOrderedPipeline.verified.txt b/...erators.Tests/Generators/HandlerOrderGeneratorTests.GeneratesOrderedPipeline.verified.txt
@@ -26,5 +26,6 @@ namespace TestAssembly
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.HandlerOrderGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 
 }
diff --git a/...ators.Tests/Generators/HandlerOrderGeneratorTests.GeneratesPipelineWithGuard.verified.txt b/...ators.Tests/Generators/HandlerOrderGeneratorTests.GeneratesPipelineWithGuard.verified.txt
@@ -26,5 +26,6 @@ namespace TestAssembly
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.HandlerOrderGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 
 }
diff --git a/...nerators/HandlerOrderGeneratorTests.GeneratesPipelineWithNonGenericAttribute.verified.txt b/...nerators/HandlerOrderGeneratorTests.GeneratesPipelineWithNonGenericAttribute.verified.txt
@@ -26,5 +26,6 @@ namespace TestAssembly
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.HandlerOrderGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 
 }
diff --git a/...erGeneratorTests.GeneratesPipelinesForSameNamedContextsInDifferentNamespaces.verified.txt b/...erGeneratorTests.GeneratesPipelinesForSameNamedContextsInDifferentNamespaces.verified.txt
@@ -26,6 +26,7 @@ namespace AdminApi
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.HandlerOrderGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 ,
   PublicApi_RequestContext.RequestContextHandlerPipeline.g.cs:
 using System;
@@ -54,5 +55,6 @@ namespace PublicApi
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.HandlerOrderGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 
 }
diff --git a/...dlerOrderGeneratorTests.GeneratesPipelinesWhenSingleClassHasMultipleContexts.verified.txt b/...dlerOrderGeneratorTests.GeneratesPipelinesWhenSingleClassHasMultipleContexts.verified.txt
@@ -26,6 +26,7 @@ namespace TestAssembly
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.HandlerOrderGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 ,
   RequestContext.RequestContextHandlerPipeline.g.cs:
 using System;
@@ -54,5 +55,6 @@ namespace TestAssembly
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.HandlerOrderGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 
 }
diff --git a/...luginAssemblyGeneratorTests.CompanionContractsShareProviderKeyInSameAssembly.verified.txt b/...luginAssemblyGeneratorTests.CompanionContractsShareProviderKeyInSameAssembly.verified.txt
@@ -18,6 +18,7 @@ namespace Plugin.Providers.Gamma
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.RegisterStrategyGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 ,
   IControl.ControlRegistry.g.cs:
 using System;
@@ -47,6 +48,7 @@ namespace Plugin.Providers.Gamma
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.RegisterStrategyGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 ,
   IErrorHandler.ErrorHandlerKeys.g.cs:
 using System;
@@ -67,6 +69,7 @@ namespace Plugin.Providers.Gamma
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.RegisterStrategyGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 ,
   IErrorHandler.ErrorHandlerRegistry.g.cs:
 using System;
@@ -96,5 +99,6 @@ namespace Plugin.Providers.Gamma
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.RegisterStrategyGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 
 }
diff --git a/...mblyGeneratorTests.GeneratesRegistryInProviderAssemblyWhenContractIsExternal.verified.txt b/...mblyGeneratorTests.GeneratesRegistryInProviderAssemblyWhenContractIsExternal.verified.txt
@@ -18,6 +18,7 @@ namespace Plugin.Contracts
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.RegisterStrategyGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 ,
   ICardMotion.CardMotionRegistry.g.cs:
 using System;
@@ -47,5 +48,6 @@ namespace Plugin.Contracts
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.RegisterStrategyGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 
 }
diff --git a/...s/RegisterEventHandlerGeneratorTests.EmitsRegisterDiWhenDiIntegrationEnabled.verified.txt b/...s/RegisterEventHandlerGeneratorTests.EmitsRegisterDiWhenDiIntegrationEnabled.verified.txt
@@ -44,5 +44,6 @@ namespace TestAssembly
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.RegisterEventHandlerGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 
 }
diff --git a/...isterEventHandlerGeneratorTests.GeneratesHandlerRegistryWithGenericAttribute.verified.txt b/...isterEventHandlerGeneratorTests.GeneratesHandlerRegistryWithGenericAttribute.verified.txt
@@ -24,5 +24,6 @@ namespace TestAssembly
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.RegisterEventHandlerGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 
 }
diff --git a/...erEventHandlerGeneratorTests.GeneratesHandlerRegistryWithNonGenericAttribute.verified.txt b/...erEventHandlerGeneratorTests.GeneratesHandlerRegistryWithNonGenericAttribute.verified.txt
@@ -23,5 +23,6 @@ namespace TestAssembly
     }
 }// <auto-generated />
 // Generated by DesignPatterns.SourceGenerators.RegisterEventHandlerGenerator
+#pragma warning disable CS1591, CS8019, CS0162, CS0612, CS0618
 
 }