[Logging] Fixes LogProperties and LogPropertyIgnore attributes to work if an object being logged resides in a different assembly than the logging method

src/Libraries/Microsoft.Extensions.Telemetry.Abstractions/Logging/LogPropertiesAttribute.cs

@@ -2,7 +2,6 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 
 using System;
-using System.Diagnostics;
 using System.Diagnostics.CodeAnalysis;
 using Microsoft.Extensions.Logging;
 using Microsoft.Shared.DiagnosticIds;
@@ -14,7 +13,6 @@ namespace Microsoft.Extensions.Logging;
 /// </summary>
 /// <seealso cref="LoggerMessageAttribute"/>
 [AttributeUsage(AttributeTargets.Parameter | AttributeTargets.Property)]
-[Conditional("CODE_GENERATION_ATTRIBUTES")]
 public sealed class LogPropertiesAttribute : Attribute
 {
     /// <summary>

src/Libraries/Microsoft.Extensions.Telemetry.Abstractions/Logging/LogPropertyIgnoreAttribute.cs

@@ -2,7 +2,6 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 
 using System;
-using System.Diagnostics;
 using Microsoft.Extensions.Logging;
 
 namespace Microsoft.Extensions.Logging;
@@ -12,7 +11,6 @@ namespace Microsoft.Extensions.Logging;
 /// </summary>
 /// <seealso cref="LoggerMessageAttribute"/>.
 [AttributeUsage(AttributeTargets.Property)]
-[Conditional("CODE_GENERATION_ATTRIBUTES")]
 public sealed class LogPropertyIgnoreAttribute : Attribute
 {
 }

test/Generators/Microsoft.Gen.Logging/Generated/LogPropertiesTests.cs

@@ -587,4 +587,26 @@ public void LogPropertiesReadonlyRecordStructArgument()
 
         latestRecord.StructuredState.Should().NotBeNull().And.Equal(expectedState);
     }
+
+    [Fact]
+    public void LogPropertiesCorrectlyLogsObjectFromAnotherAssembly()
+    {
+        LogObjectFromAnotherAssembly(_logger, new ObjectToLog
+        {
+            PropertyToIgnore = "Foo",
+            PropertyToLog = "Bar",
+            FieldToLog = new FieldToLog { Name = "Fizz", Value = "Buzz" }
+        });
+
+        Assert.Equal(1, _logger.Collector.Count);
+
+        var state = _logger.Collector.LatestRecord.StructuredState!
+            .ToDictionary(p => p.Key, p => p.Value);
+
+        Assert.Equal(4, state.Count);
+        Assert.Contains("{OriginalFormat}", state);
+        Assert.Contains("logObject.PropertyToLog", state);
+        Assert.Contains("logObject.FieldToLog.Name", state);
+        Assert.Contains("logObject.FieldToLog.Value", state);
+    }
 }

test/Generators/Microsoft.Gen.Logging/Generated/Microsoft.Gen.Logging.Generated.Tests.csproj

@@ -24,5 +24,6 @@
     <ProjectReference Include="..\..\..\..\src\Libraries\Microsoft.Extensions.Compliance.Testing\Microsoft.Extensions.Compliance.Testing.csproj" />
     <ProjectReference Include="..\..\..\..\src\Libraries\Microsoft.Extensions.Compliance.Redaction\Microsoft.Extensions.Compliance.Redaction.csproj" />
     <ProjectReference Include="..\..\..\..\src\Libraries\Microsoft.Extensions.Telemetry\Microsoft.Extensions.Telemetry.csproj" />
+    <ProjectReference Include="..\HelperLibrary\Microsoft.Gen.Logging.HelperLibrary.csproj" />
   </ItemGroup>  
 </Project>

test/Generators/Microsoft.Gen.Logging/HelperLibrary/FieldToLog.cs

@@ -0,0 +1,10 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+namespace Microsoft.Gen.Logging.Test;
+
+public class FieldToLog
+{
+    public string? Name { get; set; }
+    public string? Value { get; set; }
+}

test/Generators/Microsoft.Gen.Logging/HelperLibrary/Microsoft.Gen.Logging.HelperLibrary.csproj

@@ -0,0 +1,15 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <RootNamespace>Microsoft.Gen.Logging.Test</RootNamespace>
+    <Description>Test classes for Microsoft.Gen.Logging.Generated.Tests.</Description>
+  </PropertyGroup>
+
+  <PropertyGroup>
+    <TargetFrameworks>$(TestNetCoreTargetFrameworks)</TargetFrameworks>
+    <TargetFrameworks Condition=" '$(IsWindowsBuild)' == 'true' ">$(TestNetCoreTargetFrameworks)$(ConditionalNet462)</TargetFrameworks>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\..\..\..\src\Libraries\Microsoft.Extensions.Telemetry.Abstractions\Microsoft.Extensions.Telemetry.Abstractions.csproj" />
+  </ItemGroup>
+</Project>

test/Generators/Microsoft.Gen.Logging/HelperLibrary/ObjectToLog.cs

@@ -0,0 +1,17 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+using Microsoft.Extensions.Logging;
+
+namespace Microsoft.Gen.Logging.Test;
+
+public class ObjectToLog
+{
+    [LogPropertyIgnore]
+    public string? PropertyToIgnore { get; set; }
+
+    public string? PropertyToLog { get; set; }
+
+    [LogProperties]
+    public FieldToLog? FieldToLog { get; set; }
+}

test/Generators/Microsoft.Gen.Logging/TestClasses/LogPropertiesExtensions.cs

@@ -5,6 +5,7 @@
 using System.Diagnostics.CodeAnalysis;
 using System.Globalization;
 using Microsoft.Extensions.Logging;
+using Microsoft.Gen.Logging.Test;
 
 namespace TestClasses
 {
@@ -244,5 +245,8 @@ public override string ToString()
 
         [LoggerMessage(6, LogLevel.Information, "Testing interface-typed argument here...")]
         public static partial void LogMethodInterfaceArg(ILogger logger, [LogProperties] IMyInterface complexParam);
+
+        [LoggerMessage(7, LogLevel.Information, "Testing logging a complex object residing in another assembly...")]
+        public static partial void LogObjectFromAnotherAssembly(ILogger logger, [LogProperties] ObjectToLog logObject);
     }
 }

test/Generators/Microsoft.Gen.Logging/Unit/EmitterTests.cs

@@ -45,6 +45,7 @@ public async Task TestEmitter()
                 Assembly.GetAssembly(typeof(IRedactorProvider))!,
                 Assembly.GetAssembly(typeof(PrivateDataAttribute))!,
                 Assembly.GetAssembly(typeof(BigInteger))!,
+                Assembly.GetAssembly(typeof(ObjectToLog))!
             },
             sources,
             symbols)

test/Generators/Microsoft.Gen.Logging/Unit/Microsoft.Gen.Logging.Unit.Tests.csproj

@@ -20,6 +20,7 @@
     <ProjectReference Include="..\..\..\..\src\Libraries\Microsoft.Extensions.Telemetry.Abstractions\Microsoft.Extensions.Telemetry.Abstractions.csproj" />
     <ProjectReference Include="..\..\..\..\src\Libraries\Microsoft.Extensions.Compliance.Testing\Microsoft.Extensions.Compliance.Testing.csproj" />
     <ProjectReference Include="..\..\..\..\src\Generators\Microsoft.Gen.Logging\Microsoft.Gen.Logging.csproj" />
+    <ProjectReference Include="..\HelperLibrary\Microsoft.Gen.Logging.HelperLibrary.csproj" />
 <!--
     <ProjectReference Include="..\Generated\Microsoft.Gen.Logging.Generated.Tests.csproj" />
     -->