Annotate unsupported APIs in .Net core as Obsolete - Reflection area

docs/project/list-of-diagnostics.md

@@ -66,6 +66,8 @@ The PR that reveals the implementation of the `<IncludeInternalObsoleteAttribute
 |  __`SYSLIB0014`__ | WebRequest, HttpWebRequest, ServicePoint, and WebClient are obsolete. Use HttpClient instead. |
 |  __`SYSLIB0015`__ | DisablePrivateReflectionAttribute has no effect in .NET 6.0+ applications. |
 |  __`SYSLIB0016`__ | Use the Graphics.GetContextInfo overloads that accept arguments for better performance and fewer allocations. |
+|  __`SYSLIB0017`__ | Strong name signing is not supported and throws PlatformNotSupportedException. |
+|  __`SYSLIB0018`__ | ReflectionOnly loading is not supported and throws PlatformNotSupportedException. |
 |  __`SYSLIB0019`__ | RuntimeEnvironment members SystemConfigurationFile, GetRuntimeInterfaceAsIntPtr, and GetRuntimeInterfaceAsObject are no longer supported and throw PlatformNotSupportedException. |
 |  __`SYSLIB0020`__ | JsonSerializerOptions.IgnoreNullValues is obsolete. To ignore null values when serializing, set DefaultIgnoreCondition to JsonIgnoreCondition.WhenWritingNull. |
 

src/coreclr/System.Private.CoreLib/src/System/Reflection/AssemblyName.CoreCLR.cs

@@ -31,8 +31,7 @@ internal AssemblyName(string? name,
             AssemblyHashAlgorithm hashAlgorithm,
             AssemblyVersionCompatibility versionCompatibility,
             string? codeBase,
-            AssemblyNameFlags flags,
-            StrongNameKeyPair? keyPair) // Null if ref, matching Assembly if def
+            AssemblyNameFlags flags)
         {
             _name = name;
             _publicKey = publicKey;
@@ -43,7 +42,6 @@ internal AssemblyName(string? name,
             _versionCompatibility = versionCompatibility;
             _codeBase = codeBase;
             _flags = flags;
-            _strongNameKeyPair = keyPair;
         }
 
         [MethodImpl(MethodImplOptions.InternalCall)]

src/coreclr/System.Private.CoreLib/src/System/Reflection/RuntimeAssembly.cs

@@ -114,8 +114,7 @@ public override AssemblyName GetName(bool copiedName)
                     GetHashAlgorithm(),
                     AssemblyVersionCompatibility.SameMachine,
                     codeBase,
-                    GetFlags() | AssemblyNameFlags.PublicKey,
-                    null); // strong name key pair
+                    GetFlags() | AssemblyNameFlags.PublicKey);
 
             Module manifestModule = ManifestModule;
             if (manifestModule.MDStreamVersion > 0x10000)

src/coreclr/vm/assemblyspec.cpp

@@ -553,7 +553,6 @@ void AssemblySpec::AssemblyNameInit(ASSEMBLYNAMEREF* pAsmName, PEImage* pImageIn
         (ARG_SLOT) 1, // AssemblyVersionCompatibility.SameMachine
         ObjToArgSlot(gc.CodeBase),
         (ARG_SLOT) m_dwFlags,
-        (ARG_SLOT) NULL // key pair
     };
 
     init.Call(MethodArgs);

src/coreclr/vm/corelib.h

@@ -120,7 +120,7 @@ DEFINE_FIELD_U(_hashAlgorithm,             AssemblyNameBaseObject, _hashAlgorith
 DEFINE_FIELD_U(_versionCompatibility,      AssemblyNameBaseObject, _versionCompatibility)
 DEFINE_FIELD_U(_flags,                     AssemblyNameBaseObject, _flags)
 DEFINE_CLASS(ASSEMBLY_NAME,         Reflection,             AssemblyName)
-DEFINE_METHOD(ASSEMBLY_NAME,        CTOR,                   .ctor,                     IM_Str_ArrB_ArrB_Ver_CI_AHA_AVC_Str_ANF_SNKP_RetV)
+DEFINE_METHOD(ASSEMBLY_NAME,        CTOR,                   .ctor,                     IM_Str_ArrB_ArrB_Ver_CI_AHA_AVC_Str_ANF_RetV)
 DEFINE_METHOD(ASSEMBLY_NAME,        SET_PROC_ARCH_INDEX,    SetProcArchIndex,          IM_PEK_IFM_RetV)
 
 DEFINE_CLASS_U(System,                 Version,                    VersionBaseObject)
@@ -864,8 +864,6 @@ DEFINE_METHOD(STRING_BUILDER,       INTERNAL_COPY,          InternalCopy,
 DEFINE_METHOD(STRING_BUILDER,       REPLACE_BUFFER_INTERNAL,ReplaceBufferInternal,      IM_PtrChar_Int_RetVoid)
 DEFINE_METHOD(STRING_BUILDER,       REPLACE_BUFFER_ANSI_INTERNAL,ReplaceBufferAnsiInternal, IM_PtrSByt_Int_RetVoid)
 
-DEFINE_CLASS(STRONG_NAME_KEY_PAIR,  Reflection,             StrongNameKeyPair)
-
 DEFINE_CLASS_U(Threading,              SynchronizationContext, SynchronizationContextObject)
 DEFINE_FIELD_U(_requireWaitNotification, SynchronizationContextObject, _requireWaitNotification)
 DEFINE_CLASS(SYNCHRONIZATION_CONTEXT,    Threading,              SynchronizationContext)

src/coreclr/vm/metasig.h

@@ -369,8 +369,8 @@ DEFINE_METASIG(IM(RetInt, _, i))
 DEFINE_METASIG_T(IM(RetAssemblyName, _, C(ASSEMBLY_NAME)))
 DEFINE_METASIG_T(IM(RetAssemblyBase, _, C(ASSEMBLYBASE)))
 DEFINE_METASIG_T(IM(RetModule, _, C(MODULE)))
-DEFINE_METASIG_T(IM(Str_ArrB_ArrB_Ver_CI_AHA_AVC_Str_ANF_SNKP_RetV,
-                 s a(b) a(b) C(VERSION) C(CULTURE_INFO) g(ASSEMBLY_HASH_ALGORITHM) g(ASSEMBLY_VERSION_COMPATIBILITY) s g(ASSEMBLY_NAME_FLAGS) C(STRONG_NAME_KEY_PAIR), v))
+DEFINE_METASIG_T(IM(Str_ArrB_ArrB_Ver_CI_AHA_AVC_Str_ANF_RetV,
+                 s a(b) a(b) C(VERSION) C(CULTURE_INFO) g(ASSEMBLY_HASH_ALGORITHM) g(ASSEMBLY_VERSION_COMPATIBILITY) s g(ASSEMBLY_NAME_FLAGS), v))
 DEFINE_METASIG_T(IM(PEK_IFM_RetV,
                  g(PORTABLE_EXECUTABLE_KINDS) g(IMAGE_FILE_MACHINE), v))
 DEFINE_METASIG(IM(RetObj, _, j))

src/coreclr/vm/object.h

@@ -1535,7 +1535,6 @@ class AssemblyNameBaseObject : public Object
     OBJECTREF     _cultureInfo;
     OBJECTREF     _codeBase;
     OBJECTREF     _version;
-    OBJECTREF     _strongNameKeyPair;
     DWORD         _hashAlgorithm;
     DWORD         _versionCompatibility;
     DWORD         _flags;
@@ -1548,7 +1547,6 @@ class AssemblyNameBaseObject : public Object
     OBJECTREF GetSimpleName() { LIMITED_METHOD_CONTRACT; return _name; }
     U1ARRAYREF GetPublicKey() { LIMITED_METHOD_CONTRACT; return _publicKey; }
     U1ARRAYREF GetPublicKeyToken() { LIMITED_METHOD_CONTRACT; return _publicKeyToken; }
-    OBJECTREF GetStrongNameKeyPair() { LIMITED_METHOD_CONTRACT; return _strongNameKeyPair; }
     OBJECTREF GetCultureInfo() { LIMITED_METHOD_CONTRACT; return _cultureInfo; }
     OBJECTREF GetAssemblyCodeBase() { LIMITED_METHOD_CONTRACT; return _codeBase; }
     OBJECTREF GetVersion() { LIMITED_METHOD_CONTRACT; return _version; }

src/libraries/Common/src/System/Obsoletions.cs

@@ -60,6 +60,12 @@ internal static class Obsoletions
         internal const string GetContextInfoMessage = "Use the Graphics.GetContextInfo overloads that accept arguments for better performance and fewer allocations.";
         internal const string GetContextInfoDiagId = "SYSLIB0016";
 
+        internal const string StrongNameKeyPairMessage = "Strong name signing is not supported and throws PlatformNotSupportedException.";
+        internal const string StrongNameKeyPairDiagId = "SYSLIB0017";
+
+        internal const string ReflectionOnlyLoadingMessage = "ReflectionOnly loading is not supported and throws PlatformNotSupportedException.";
+        internal const string ReflectionOnlyLoadingDiagId = "SYSLIB0018";
+
         internal const string RuntimeEnvironmentMessage = "RuntimeEnvironment members SystemConfigurationFile, GetRuntimeInterfaceAsIntPtr, and GetRuntimeInterfaceAsObject are no longer supported and throw PlatformNotSupportedException.";
         internal const string RuntimeEnvironmentDiagId = "SYSLIB0019";
 

src/libraries/Directory.Build.targets

@@ -16,8 +16,8 @@
     <NoWarn Condition="'$(TargetFrameworkIdentifier)' == '.NETFramework' or '$(TargetFrameworkIdentifier)' == '.NETStandard' or ('$(TargetFrameworkIdentifier)' == '.NETCoreApp' and $([MSBuild]::VersionLessThan($(TargetFrameworkVersion), '3.0')))">$(NoWarn);nullable</NoWarn>
     <NoWarn Condition="'$(GeneratePlatformNotSupportedAssembly)' == 'true' or '$(GeneratePlatformNotSupportedAssemblyMessage)' != ''">$(NoWarn);nullable;CA1052</NoWarn>
     <!-- Ignore Obsolete errors within the generated shims that type-forward types.
-         SYSLIB0003 is for CAS. SYSLIB0004 is the obsoletion of CER. -->
-    <NoWarn Condition="'$(IsPartialFacadeAssembly)' == 'true'">$(NoWarn);SYSLIB0003;SYSLIB0004;SYSLIB0015</NoWarn>
+         SYSLIB0003: Code Access Security (CAS). SYSLIB0004: Constrained Execution Region (CER). SYSLIB0017: Strong name signing. -->
+    <NoWarn Condition="'$(IsPartialFacadeAssembly)' == 'true'">$(NoWarn);SYSLIB0003;SYSLIB0004;SYSLIB0015;SYSLIB0017</NoWarn>
     <!-- Reset these properties back to blank, since they are defaulted by Microsoft.NET.Sdk -->
     <WarningsAsErrors Condition="'$(WarningsAsErrors)' == 'NU1605'" />
     <!-- Set the documentation output file globally. -->

src/libraries/System.Private.CoreLib/src/System/Reflection/Assembly.cs

@@ -372,10 +372,13 @@ public static Assembly LoadFrom(string assemblyFile, byte[]? hashValue, Assembly
         [RequiresUnreferencedCode("Types and members the loaded module depends on might be removed")]
         public virtual Module LoadModule(string moduleName, byte[]? rawModule, byte[]? rawSymbolStore) { throw NotImplemented.ByDesign; }
 
+        [Obsolete(Obsoletions.ReflectionOnlyLoadingMessage, DiagnosticId = Obsoletions.ReflectionOnlyLoadingDiagId, UrlFormat = Obsoletions.SharedUrlFormat)]
         [RequiresUnreferencedCode("Types and members the loaded assembly depends on might be removed")]
         public static Assembly ReflectionOnlyLoad(byte[] rawAssembly) { throw new PlatformNotSupportedException(SR.PlatformNotSupported_ReflectionOnly); }
+        [Obsolete(Obsoletions.ReflectionOnlyLoadingMessage, DiagnosticId = Obsoletions.ReflectionOnlyLoadingDiagId, UrlFormat = Obsoletions.SharedUrlFormat)]
         [RequiresUnreferencedCode("Types and members the loaded assembly depends on might be removed")]
         public static Assembly ReflectionOnlyLoad(string assemblyString) { throw new PlatformNotSupportedException(SR.PlatformNotSupported_ReflectionOnly); }
+        [Obsolete(Obsoletions.ReflectionOnlyLoadingMessage, DiagnosticId = Obsoletions.ReflectionOnlyLoadingDiagId, UrlFormat = Obsoletions.SharedUrlFormat)]
         [RequiresUnreferencedCode("Types and members the loaded assembly depends on might be removed")]
         public static Assembly ReflectionOnlyLoadFrom(string assemblyFile) { throw new PlatformNotSupportedException(SR.PlatformNotSupported_ReflectionOnly); }
 

src/libraries/System.Private.CoreLib/src/System/Reflection/AssemblyName.cs

@@ -19,8 +19,6 @@ public sealed partial class AssemblyName : ICloneable, IDeserializationCallback,
         private string? _codeBase;
         private Version? _version;
 
-        private StrongNameKeyPair? _strongNameKeyPair;
-
         private AssemblyHashAlgorithm _hashAlgorithm;
 
         private AssemblyVersionCompatibility _versionCompatibility;
@@ -200,10 +198,11 @@ public AssemblyVersionCompatibility VersionCompatibility
             set => _versionCompatibility = value;
         }
 
+        [Obsolete(Obsoletions.StrongNameKeyPairMessage, DiagnosticId = Obsoletions.StrongNameKeyPairDiagId, UrlFormat = Obsoletions.SharedUrlFormat)]
         public StrongNameKeyPair? KeyPair
         {
-            get => _strongNameKeyPair;
-            set => _strongNameKeyPair = value;
+            get => throw new PlatformNotSupportedException(SR.PlatformNotSupported_StrongNameSigning);
+            set => throw new PlatformNotSupportedException(SR.PlatformNotSupported_StrongNameSigning);
         }
 
         public string FullName

src/libraries/System.Private.CoreLib/src/System/Reflection/StrongNameKeyPair.cs

@@ -6,25 +6,14 @@
 
 namespace System.Reflection
 {
+    [Obsolete(Obsoletions.StrongNameKeyPairMessage, DiagnosticId = Obsoletions.StrongNameKeyPairDiagId, UrlFormat = Obsoletions.SharedUrlFormat)]
     public class StrongNameKeyPair : IDeserializationCallback, ISerializable
     {
-        // Build key pair from file.
-        public StrongNameKeyPair(FileStream keyPairFile)
-        {
-            if (keyPairFile == null)
-                throw new ArgumentNullException(nameof(keyPairFile));
-
-            int length = (int)keyPairFile.Length;
-            byte[] keyPairArray = new byte[length];
-            keyPairFile.Read(keyPairArray, 0, length);
-        }
-
-        // Build key pair from byte array in memory.
-        public StrongNameKeyPair(byte[] keyPairArray)
-        {
-            if (keyPairArray == null)
-                throw new ArgumentNullException(nameof(keyPairArray));
-        }
+        public StrongNameKeyPair(FileStream keyPairFile) =>
+            throw new PlatformNotSupportedException(SR.PlatformNotSupported_StrongNameSigning);
+
+        public StrongNameKeyPair(byte[] keyPairArray) =>
+            throw new PlatformNotSupportedException(SR.PlatformNotSupported_StrongNameSigning);
 
         protected StrongNameKeyPair(SerializationInfo info, StreamingContext context) =>
             throw new PlatformNotSupportedException();

src/libraries/System.Private.CoreLib/src/System/Type.cs

@@ -541,6 +541,7 @@ public override int GetHashCode()
         }
         public virtual bool Equals(Type? o) => o == null ? false : object.ReferenceEquals(this.UnderlyingSystemType, o.UnderlyingSystemType);
 
+        [Obsolete(Obsoletions.ReflectionOnlyLoadingMessage, DiagnosticId = Obsoletions.ReflectionOnlyLoadingDiagId, UrlFormat = Obsoletions.SharedUrlFormat)]
         public static Type? ReflectionOnlyGetType(string typeName, bool throwIfNotFound, bool ignoreCase) => throw new PlatformNotSupportedException(SR.PlatformNotSupported_ReflectionOnly);
 
         public static Binder DefaultBinder

src/libraries/System.Reflection/tests/AssemblyTests.cs

@@ -728,6 +728,7 @@ public void AssemblyLoadFromBytesWithSymbols()
             Assert.Equal(assembly.FullName, loadedAssembly.FullName);
         }
 
+#pragma warning disable SYSLIB0018 // ReflectionOnly loading is not supported and throws PlatformNotSupportedException.
         [Fact]
         public void AssemblyReflectionOnlyLoadFromString()
         {
@@ -750,6 +751,7 @@ public void AssemblyReflectionOnlyLoadFromNeg()
             Assert.Throws<PlatformNotSupportedException>(() => Assembly.ReflectionOnlyLoad(string.Empty));
             Assert.Throws<PlatformNotSupportedException>(() => Assembly.ReflectionOnlyLoad((byte[])null));
         }
+#pragma warning restore SYSLIB0018
 
         public static IEnumerable<object[]> GetModules_TestData()
         {

src/libraries/System.Runtime/ref/System.Runtime.cs

@@ -4571,6 +4571,7 @@ protected Type() { }
         public virtual System.Type MakePointerType() { throw null; }
         public static bool operator ==(System.Type? left, System.Type? right) { throw null; }
         public static bool operator !=(System.Type? left, System.Type? right) { throw null; }
+        [System.ObsoleteAttribute("ReflectionOnly loading is not supported and throws PlatformNotSupportedException.", DiagnosticId = "SYSLIB0018", UrlFormat = "https://aka.ms/dotnet-warnings/{0}")]
         public static System.Type? ReflectionOnlyGetType(string typeName, bool throwIfNotFound, bool ignoreCase) { throw null; }
         public override string ToString() { throw null; }
     }
@@ -7944,10 +7945,13 @@ public virtual void GetObjectData(System.Runtime.Serialization.SerializationInfo
         public static System.Reflection.Assembly? LoadWithPartialName(string partialName) { throw null; }
         public static bool operator ==(System.Reflection.Assembly? left, System.Reflection.Assembly? right) { throw null; }
         public static bool operator !=(System.Reflection.Assembly? left, System.Reflection.Assembly? right) { throw null; }
+        [System.ObsoleteAttribute("ReflectionOnly loading is not supported and throws PlatformNotSupportedException.", DiagnosticId = "SYSLIB0018", UrlFormat = "https://aka.ms/dotnet-warnings/{0}")]
         [System.Diagnostics.CodeAnalysis.RequiresUnreferencedCodeAttribute("Types and members the loaded assembly depends on might be removed")]
         public static System.Reflection.Assembly ReflectionOnlyLoad(byte[] rawAssembly) { throw null; }
+        [System.ObsoleteAttribute("ReflectionOnly loading is not supported and throws PlatformNotSupportedException.", DiagnosticId = "SYSLIB0018", UrlFormat = "https://aka.ms/dotnet-warnings/{0}")]
         [System.Diagnostics.CodeAnalysis.RequiresUnreferencedCodeAttribute("Types and members the loaded assembly depends on might be removed")]
         public static System.Reflection.Assembly ReflectionOnlyLoad(string assemblyString) { throw null; }
+        [System.ObsoleteAttribute("ReflectionOnly loading is not supported and throws PlatformNotSupportedException.", DiagnosticId = "SYSLIB0018", UrlFormat = "https://aka.ms/dotnet-warnings/{0}")]
         [System.Diagnostics.CodeAnalysis.RequiresUnreferencedCodeAttribute("Types and members the loaded assembly depends on might be removed")]
         public static System.Reflection.Assembly ReflectionOnlyLoadFrom(string assemblyFile) { throw null; }
         public override string ToString() { throw null; }
@@ -8067,6 +8071,7 @@ public AssemblyName(string assemblyName) { }
         public System.Reflection.AssemblyNameFlags Flags { get { throw null; } set { } }
         public string FullName { get { throw null; } }
         public System.Configuration.Assemblies.AssemblyHashAlgorithm HashAlgorithm { get { throw null; } set { } }
+        [System.ObsoleteAttribute("Strong name signing is not supported and throws PlatformNotSupportedException.", DiagnosticId = "SYSLIB0017", UrlFormat = "https://aka.ms/dotnet-warnings/{0}")]
         public System.Reflection.StrongNameKeyPair? KeyPair { get { throw null; } set { } }
         public string? Name { get { throw null; } set { } }
         public System.Reflection.ProcessorArchitecture ProcessorArchitecture { get { throw null; } set { } }
@@ -8914,6 +8919,7 @@ public static partial class RuntimeReflectionExtensions
         public static System.Collections.Generic.IEnumerable<System.Reflection.PropertyInfo> GetRuntimeProperties([System.Diagnostics.CodeAnalysis.DynamicallyAccessedMembersAttribute(System.Diagnostics.CodeAnalysis.DynamicallyAccessedMemberTypes.NonPublicProperties | System.Diagnostics.CodeAnalysis.DynamicallyAccessedMemberTypes.PublicProperties)] this System.Type type) { throw null; }
         public static System.Reflection.PropertyInfo? GetRuntimeProperty([System.Diagnostics.CodeAnalysis.DynamicallyAccessedMembersAttribute(System.Diagnostics.CodeAnalysis.DynamicallyAccessedMemberTypes.PublicProperties)] this System.Type type, string name) { throw null; }
     }
+    [System.ObsoleteAttribute("Strong name signing is not supported and throws PlatformNotSupportedException.", DiagnosticId = "SYSLIB0017", UrlFormat = "https://aka.ms/dotnet-warnings/{0}")]
     public partial class StrongNameKeyPair : System.Runtime.Serialization.IDeserializationCallback, System.Runtime.Serialization.ISerializable
     {
         public StrongNameKeyPair(byte[] keyPairArray) { }