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ActivatorUtilities: Do not wrap Delegate.Invoke in another delegate #105814

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merged 2 commits into from
Aug 21, 2024
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ActivatorUtilities: Do not wrap Delegate.Invoke in another delegate #105814

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468c90c
Do not wrap Delegate.Invoke in another delegate
huoyaoyuan Aug 1, 2024
fa08059
Merge branch 'main' into delegate-invoke
huoyaoyuan Aug 2, 2024
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12 changes: 6 additions & 6 deletions ...libraries/Microsoft.Extensions.DependencyInjection.Abstractions/src/ActivatorUtilities.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -291,11 +291,11 @@ public static ObjectFactory CreateFactory(
#endif
CreateFactoryInternal(instanceType, argumentTypes, out ParameterExpression provider, out ParameterExpression argumentArray, out Expression factoryExpressionBody);

var factoryLambda = Expression.Lambda<Func<IServiceProvider, object?[]?, object>>(
var factoryLambda = Expression.Lambda<ObjectFactory>(
factoryExpressionBody, provider, argumentArray);

Func<IServiceProvider, object?[]?, object>? result = factoryLambda.Compile();
return result.Invoke;
ObjectFactory? result = factoryLambda.Compile();
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Note for other reviewers: ObjectFactory delegate is declared here:

runtime/src/libraries/Microsoft.Extensions.DependencyInjection.Abstractions/src/ObjectFactory.cs

Line 14 in da757a1

public delegate object ObjectFactory(IServiceProvider serviceProvider, object?[]? arguments);

return result;
}

/// <summary>
Expand Down Expand Up @@ -324,11 +324,11 @@ public static ObjectFactory<T>
#endif
CreateFactoryInternal(typeof(T), argumentTypes, out ParameterExpression provider, out ParameterExpression argumentArray, out Expression factoryExpressionBody);

var factoryLambda = Expression.Lambda<Func<IServiceProvider, object?[]?, T>>(
var factoryLambda = Expression.Lambda<ObjectFactory<T>>(
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Note for other reviewers: ObjectFactory<T> delegate is declared here

https://github.com/dotnet/runtime/blob/da757a1b062c24e1011c5aadf31fe2f1cde59c97/src/libraries/Microsoft.Extensions.DependencyInjection.Abstractions/src/ObjectFactoryT.cs

factoryExpressionBody, provider, argumentArray);

Func<IServiceProvider, object?[]?, T>? result = factoryLambda.Compile();
return result.Invoke;
ObjectFactory<T>? result = factoryLambda.Compile();
return result;
}

private static void CreateFactoryInternal([DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicConstructors)] Type instanceType, Type[] argumentTypes, out ParameterExpression provider, out ParameterExpression argumentArray, out Expression factoryExpressionBody)
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