OpenTelemetry.AutoInstrumentation.DuckTyping

The duck typing library allows us to get and set data from fields and properties and call methods from an object without having the type definition at compile time. This is done by creating a proxy type to an object instance using a proxy definition at runtime.

The goal of the library is to have an unify code to access unknown types as fastest and with the minimum allocations as possible.

Example

Given the following scenario, where we want to access the data from an anonymous class instance in another method, a code example to do that would be:

public class Program
{
    public static void Main()
    {
        // We create an anonymous object
        var anonymousObject = new { Name = ".NET Core", Version = "3.1" };

        Process(anonymousObject);
    }
    
    public static void Process(object obj) 
    {
                // First, we create a proxy instance using IDuckAnonymous type
                // as a proxy definition and the obj instance as the target.
                // Now the proxyInstance implements IDuckAnonymous type and all
                // getters to access the anonymous object internals were generated
                // automatically for us.

                // We use the `As` extension method to call the duck typing proxy creator.
        var proxyInstance = obj.As<IDuckAnonymous>();

        // Here we can access the internal properties
        Console.WriteLine($"Name: {proxyInstance.Name}");
        Console.WriteLine($"Version: {proxyInstance.Version}");
    }

    public interface IDuckAnonymous 
    {
        string Name { get; }
        string Version { get; }
    }
}

For this particular case the generated proxy type by the Duck Type library will look like this:

public readonly struct IDuckAnonymous___<>f__AnonymousType0`2[System.String,System.String] : IDuckAnonymous, IDuckType
{
    private readonly <>f__AnonymousType0`2[System.String,System.String] _currentInstance;

    // *** IDuckType implementation
    public object Instance => _currentInstance;
    public Type Type => typeof(<>f__AnonymousType0`2[System.String,System.String]);

    // *** IDuckAnonymous implementation
    public string Name => _currentInstance.Name;
    public string Version => _currentInstance.Version;
}

Proxy types

Depending on the proxy definition type, the library will create different proxy types as shown in the following table:

Proxy Definition Type	Resulting Proxy Type
Interface	Struct implementing the interface
Abstract class	Class inherits and overriding the abstract class
Class with virtual members	Class inherits and overriding the virtual class

Also, all resulting proxy types implements the IDuckType interface to expose the target instance and type. The interface has the following definition:

public interface IDuckType
{
    /// <summary>
    /// Gets instance
    /// </summary>
    object Instance { get; }

    /// <summary>
    /// Gets instance Type
    /// </summary>
    Type Type { get; }
}

Controlling bindings

To control the bindings between the proxy definition and the target type, we can make use of the DuckAttribute attribute type defined as:

/// <summary>
/// Duck attribute
/// </summary>
[AttributeUsage(AttributeTargets.Property | AttributeTargets.Method, AllowMultiple = false)]
public class DuckAttribute : Attribute
{
    /// <summary>
    /// Gets or sets the underlying type member name
    /// </summary>
    public string Name { get; set; }

    /// <summary>
    /// Gets or sets duck kind
    /// </summary>
    public DuckKind Kind { get; set; } = DuckKind.Property;

    /// <summary>
    /// Gets or sets the generic parameter type names definition for a generic method call (required when calling generic methods and instance type is non public)
    /// </summary>
    public string[] GenericParameterTypeNames { get; set; }

    /// <summary>
    /// Gets or sets the parameter type names of the target method (optional / used to disambiguation)
    /// </summary>
    public string[] ParameterTypeNames { get; set; }
}

/// <summary>
/// Duck attribute where the underlying member is a field
/// </summary>
public class DuckFieldAttribute : DuckAttribute
{
    /// <summary>
    /// Initializes a new instance of the <see cref="DuckFieldAttribute"/> class.
    /// </summary>
    public DuckFieldAttribute()
    {
        Kind = DuckKind.Field;
    }
}

/// <summary>
/// Duck kind
/// </summary>
public enum DuckKind
{
    /// <summary>
    /// Property
    /// </summary>
    Property,

    /// <summary>
    /// Field
    /// </summary>
    Field
}

This attribute can be used in Properties or Methods in the proxy definition and is used by the library to select the members we want to access.

Example with control bindings

The following example shows multiple uses of the DuckAttribute:

public interface IMyProxy
{
    // ***
    // *** Field binding
    // ***

    [DuckField(Name = "_sampleStaticField")]
    string MyStaticField { get; }

    [DuckField(Name = "_normalField")]
    int NormalFieldWithGetterAndSetter { get; set; }



    // ***
    // *** Property binding (by default the Kind is Property so we can ignore it)
    // ***

    [Duck(Name = "Instance")]
    string MyStaticInstanceProperty { get; }

    // If we don´t use the duck attribute it will try to find a property with the same name in the target type
    string MyProperty { get; set; }

    // If the original property returns a type that we don´t have at compile time,
    // we can pass a proxy definition and that original value will be wrapped with the proxy
    // as well (DuckType chaining).
    IObscureObject CustomData { get; }

    // Indexers are supported as well
    string this[string index] { get; set; }



    // ***
    // *** Method binding
    // ***

    // support overloads of a method
    void Add(string name, int obj);
    void Add(string name, string obj = "none");

    // In order to resolve an ambiguity of a call we can specify the parameters we want to match.
    [Duck(ParameterTypeNames = new string[] { "System.String", "MyNamespace.MyType, MyAssembly" })]
    void Add(string name, object obj);

    // We can also use the name to map to another method name.
    [Duck(Name = "InternalGetReference")]
    void GetReference(ref int value);

    // The Proxy definition can support generics only if the instance type
    // is *Public* 
    Tuple<T1, T2> Wrap<T1, T2>(T1 a, T2 b);

    // If we need to call a generic method from a non public type
    // we can use the DuckAttribute as well:
    [Duck(Name = "Wrap", GenericParameterTypeNames = new[] { "System.Int32", "System.String" })]
    Tuple<int, string> WrapIntString(int a, string b);


    // If the original call returns or uses a parameter that we don´t have at compile time,
    // we can pass a proxy definition and that original value will be wrapped with the proxy
    // as well (DuckType chaining).
    bool TryGetPrivateObscure(out IObscureObject obj);
}

Accessor modifiers (AM)

In order to support all accessor modifiers for: instance types, parameters and return value types, the Duck Type library applies some tricks to avoid the visibility checks. This is done automatically when the library is creating the proxy type. In summary the following logic is applied depending on each case:

Target Type AM	Target Member Type	Target Member AM	Access Method
Public	Field	Public	Direct
Public	Field	Private, Protected, Internal	through DynamicMethod
Public	Property	Public	Direct
Public	Property	Private, Protected, Internal	Direct using function pointers (Calli opcode)
Public	Method	Public	Direct
Public	Method	Private, Protected, Internal	Direct using function pointers (Calli opcode)
Private, Protected, Internal	Field	Public	through DynamicMethod delegate
Private, Protected, Internal	Field	Private, Protected, Internal	through DynamicMethod delegate
Private, Protected, Internal	Property	Public	through DynamicMethod delegate
Private, Protected, Internal	Property	Private, Protected, Internal	through DynamicMethod delegate
Private, Protected, Internal	Method	Public	through DynamicMethod delegate
Private, Protected, Internal	Method	Private, Protected, Internal	through DynamicMethod delegate

Generics methods

Calling generics methods are supported by the library, but due the use of DynamicMethodin some scenarios we can´t define it as a normal generic method (Please note if we know that the target type is Public, then we can declare a normal generic method).

For those scenarios were we can´t use the generic definition, the alternative is to specify the generic parameters to be match in the duck attribute of the proxy definition.

Example with public type

Consider this public target type:

public class PublicType
{
    public Tuple<T1, T2> Wrap<T1, T2>(T1 a, T2 b) 
    {
        return Tuple.Create<T1, T2>(default, default);
    }
}

Because the type is public we can define a Generic proxy method:

public interface IMyProxy
{
    Tuple<T1, T2> Wrap<T1, T2>(T1 a, T2 b);
}

Example with non public type

Consider this private target type:

private class PrivateType
{
    public Tuple<T1, T2> Wrap<T1, T2>(T1 a, T2 b) 
    {
        return Tuple.Create<T1, T2>(default, default);
    }
}

Because the type is non public we have to define each generic arguments we want to use in different calls.

public interface IMyProxy
{
    // We have to define all kind of call we want to make to the target instance

    [Duck(Name = "Wrap", GenericParameterTypeNames = new[] { "System.Int32", "System.String" })]
    Tuple<int, string> WrapIntString(int a, string b);

    [Duck(Name = "Wrap", GenericParameterTypeNames = new[] { "System.Int32", "System.Int32" })]
    Tuple<int, int> WrapIntInt(int a, int b);
}

Duck chaining

Duck chaining enables the possibility to interact with properties or methods returning or using non public type parameters to be wrapped with a new duck type proxy, so we can access the internals of those objects.

Example with chaining

Consider the following types:

public class MyHandler 
{
    public string Name { get; set; }

    internal MyHandlerConfiguration Configuration { get; }
}

internal class MyHandlerConfiguration 
{
    public int MaxConnections { get; set; }
}

We can write the following proxy definitions to get access to all the data:

public interface IProxyMyHandler
{
    string Name { get; set; }

    IProxyMyHandlerConfiguration Configuration { get; }
}
public interface IProxyMyHandlerConfiguration
{
    int MaxConnections { get; set; }
}

In this example the non public instance of MyHandlerConfiguration when calling the Configuration property is going to be wrapped with a IProxyMyHandlerConfiguration instance automatically. That allow us to access the internal data of that non public type.

Benchmarks

Several benchmark tests were run for multiple cases to keep track of the time execution and heap allocations of the library, these are the results:

Fields Getter and Setter

The proxy column indicates the target type access modifier.

Tests with blank proxy are the direct access of the value through an interface without creating any duck type proxy.

BenchmarkDotNet=v0.12.1, OS=Windows 10.0.19041.508 (2004/?/20H1)
Intel Core i7-1068NG7 CPU 2.30GHz, 1 CPU, 2 logical and 2 physical cores
.NET Core SDK=3.1.402
  [Host]     : .NET Core 3.1.8 (CoreCLR 4.700.20.41105, CoreFX 4.700.20.41903), X64 RyuJIT
  Job-LJAVIR : .NET Framework 4.8 (4.8.4220.0), X64 RyuJIT
  Job-OHOUFK : .NET Core 3.1.8 (CoreCLR 4.700.20.41105, CoreFX 4.700.20.41903), X64 RyuJIT

Method	Runtime	Categories	proxy	Mean	Error	StdDev	Ratio	RatioSD	Gen 0	Gen 1	Gen 2	Allocated
GetPublicStaticField	.NET 4.7.2	Static Getter	Internal	3.207 ns	0.0623 ns	0.0553 ns	1.00	0.00	-	-	-	-
GetPublicStaticField	.NET Core 3.1	Static Getter	Internal	4.052 ns	0.0748 ns	0.0700 ns	1.27	0.03	-	-	-	-

GetInternalStaticField	.NET 4.7.2	Static Getter	Internal	3.233 ns	0.0774 ns	0.0724 ns	1.00	0.00	-	-	-	-
GetInternalStaticField	.NET Core 3.1	Static Getter	Internal	3.987 ns	0.0723 ns	0.0677 ns	1.23	0.04	-	-	-	-

GetProtectedStaticField	.NET 4.7.2	Static Getter	Internal	3.229 ns	0.0607 ns	0.0567 ns	1.00	0.00	-	-	-	-
GetProtectedStaticField	.NET Core 3.1	Static Getter	Internal	4.004 ns	0.1010 ns	0.0895 ns	1.24	0.04	-	-	-	-

GetPrivateStaticField	.NET 4.7.2	Static Getter	Internal	3.209 ns	0.0288 ns	0.0255 ns	1.00	0.00	-	-	-	-
GetPrivateStaticField	.NET Core 3.1	Static Getter	Internal	4.274 ns	0.0539 ns	0.0421 ns	1.33	0.02	-	-	-	-

SetPublicStaticField	.NET 4.7.2	Static Setter	Internal	2.941 ns	0.0507 ns	0.0423 ns	1.00	0.00	-	-	-	-
SetPublicStaticField	.NET Core 3.1	Static Setter	Internal	3.966 ns	0.0788 ns	0.0737 ns	1.34	0.03	-	-	-	-

SetInternalStaticField	.NET 4.7.2	Static Setter	Internal	2.952 ns	0.0671 ns	0.0627 ns	1.00	0.00	-	-	-	-
SetInternalStaticField	.NET Core 3.1	Static Setter	Internal	3.973 ns	0.0804 ns	0.0752 ns	1.35	0.04	-	-	-	-

SetProtectedStaticField	.NET 4.7.2	Static Setter	Internal	2.880 ns	0.0472 ns	0.0394 ns	1.00	0.00	-	-	-	-
SetProtectedStaticField	.NET Core 3.1	Static Setter	Internal	3.872 ns	0.0359 ns	0.0300 ns	1.34	0.02	-	-	-	-

SetPrivateStaticField	.NET 4.7.2	Static Setter	Internal	2.945 ns	0.0625 ns	0.0585 ns	1.00	0.00	-	-	-	-
SetPrivateStaticField	.NET Core 3.1	Static Setter	Internal	3.966 ns	0.0846 ns	0.0791 ns	1.35	0.04	-	-	-	-

GetPublicField	.NET 4.7.2	Getter	Internal	3.405 ns	0.0599 ns	0.0531 ns	1.00	0.00	-	-	-	-
GetPublicField	.NET Core 3.1	Getter	Internal	3.229 ns	0.0571 ns	0.0477 ns	0.95	0.02	-	-	-	-

GetInternalField	.NET 4.7.2	Getter	Internal	3.400 ns	0.0465 ns	0.0389 ns	1.00	0.00	-	-	-	-
GetInternalField	.NET Core 3.1	Getter	Internal	3.549 ns	0.0657 ns	0.0615 ns	1.05	0.02	-	-	-	-

GetProtectedField	.NET 4.7.2	Getter	Internal	3.384 ns	0.0459 ns	0.0383 ns	1.00	0.00	-	-	-	-
GetProtectedField	.NET Core 3.1	Getter	Internal	3.278 ns	0.0503 ns	0.0392 ns	0.97	0.02	-	-	-	-

GetPrivateField	.NET 4.7.2	Getter	Internal	3.425 ns	0.0545 ns	0.0510 ns	1.00	0.00	-	-	-	-
GetPrivateField	.NET Core 3.1	Getter	Internal	3.282 ns	0.0761 ns	0.0675 ns	0.96	0.02	-	-	-	-

SetPublicField	.NET 4.7.2	Setter	Internal	3.392 ns	0.0649 ns	0.0575 ns	1.00	0.00	-	-	-	-
SetPublicField	.NET Core 3.1	Setter	Internal	3.164 ns	0.0509 ns	0.0451 ns	0.93	0.02	-	-	-	-

SetInternalField	.NET 4.7.2	Setter	Internal	3.422 ns	0.0727 ns	0.0680 ns	1.00	0.00	-	-	-	-
SetInternalField	.NET Core 3.1	Setter	Internal	3.166 ns	0.0430 ns	0.0359 ns	0.92	0.02	-	-	-	-

SetProtectedField	.NET 4.7.2	Setter	Internal	3.384 ns	0.0392 ns	0.0306 ns	1.00	0.00	-	-	-	-
SetProtectedField	.NET Core 3.1	Setter	Internal	3.180 ns	0.0520 ns	0.0486 ns	0.94	0.02	-	-	-	-

SetPrivateField	.NET 4.7.2	Setter	Internal	3.392 ns	0.0548 ns	0.0485 ns	1.00	0.00	-	-	-	-
SetPrivateField	.NET Core 3.1	Setter	Internal	3.155 ns	0.0300 ns	0.0234 ns	0.93	0.02	-	-	-	-

GetPublicStaticField	.NET 4.7.2	Static Getter	Private	3.163 ns	0.0390 ns	0.0326 ns	1.00	0.00	-	-	-	-
GetPublicStaticField	.NET Core 3.1	Static Getter	Private	4.310 ns	0.0717 ns	0.0671 ns	1.36	0.03	-	-	-	-

GetInternalStaticField	.NET 4.7.2	Static Getter	Private	3.220 ns	0.0737 ns	0.0689 ns	1.00	0.00	-	-	-	-
GetInternalStaticField	.NET Core 3.1	Static Getter	Private	3.999 ns	0.0327 ns	0.0255 ns	1.24	0.03	-	-	-	-

GetProtectedStaticField	.NET 4.7.2	Static Getter	Private	3.198 ns	0.0458 ns	0.0383 ns	1.00	0.00	-	-	-	-
GetProtectedStaticField	.NET Core 3.1	Static Getter	Private	4.082 ns	0.0989 ns	0.0925 ns	1.27	0.02	-	-	-	-

GetPrivateStaticField	.NET 4.7.2	Static Getter	Private	3.185 ns	0.0336 ns	0.0280 ns	1.00	0.00	-	-	-	-
GetPrivateStaticField	.NET Core 3.1	Static Getter	Private	3.993 ns	0.0543 ns	0.0453 ns	1.25	0.02	-	-	-	-

SetPublicStaticField	.NET 4.7.2	Static Setter	Private	2.928 ns	0.0462 ns	0.0386 ns	1.00	0.00	-	-	-	-
SetPublicStaticField	.NET Core 3.1	Static Setter	Private	3.951 ns	0.0857 ns	0.0760 ns	1.35	0.03	-	-	-	-

SetInternalStaticField	.NET 4.7.2	Static Setter	Private	3.006 ns	0.0861 ns	0.0805 ns	1.00	0.00	-	-	-	-
SetInternalStaticField	.NET Core 3.1	Static Setter	Private	3.986 ns	0.0890 ns	0.0833 ns	1.33	0.04	-	-	-	-

SetProtectedStaticField	.NET 4.7.2	Static Setter	Private	2.916 ns	0.0256 ns	0.0214 ns	1.00	0.00	-	-	-	-
SetProtectedStaticField	.NET Core 3.1	Static Setter	Private	3.937 ns	0.0509 ns	0.0425 ns	1.35	0.02	-	-	-	-

SetPrivateStaticField	.NET 4.7.2	Static Setter	Private	3.003 ns	0.0684 ns	0.0639 ns	1.00	0.00	-	-	-	-
SetPrivateStaticField	.NET Core 3.1	Static Setter	Private	3.951 ns	0.0954 ns	0.0846 ns	1.32	0.03	-	-	-	-

GetPublicField	.NET 4.7.2	Getter	Private	3.408 ns	0.0499 ns	0.0417 ns	1.00	0.00	-	-	-	-
GetPublicField	.NET Core 3.1	Getter	Private	3.243 ns	0.0506 ns	0.0448 ns	0.95	0.01	-	-	-	-

GetInternalField	.NET 4.7.2	Getter	Private	3.419 ns	0.0360 ns	0.0301 ns	1.00	0.00	-	-	-	-
GetInternalField	.NET Core 3.1	Getter	Private	3.276 ns	0.0638 ns	0.0565 ns	0.96	0.02	-	-	-	-

GetProtectedField	.NET 4.7.2	Getter	Private	3.428 ns	0.0688 ns	0.0644 ns	1.00	0.00	-	-	-	-
GetProtectedField	.NET Core 3.1	Getter	Private	3.260 ns	0.0414 ns	0.0367 ns	0.95	0.02	-	-	-	-

GetPrivateField	.NET 4.7.2	Getter	Private	3.533 ns	0.0972 ns	0.1264 ns	1.00	0.00	-	-	-	-
GetPrivateField	.NET Core 3.1	Getter	Private	3.275 ns	0.0576 ns	0.0511 ns	0.92	0.04	-	-	-	-

SetPublicField	.NET 4.7.2	Setter	Private	3.437 ns	0.0919 ns	0.0903 ns	1.00	0.00	-	-	-	-
SetPublicField	.NET Core 3.1	Setter	Private	3.151 ns	0.0520 ns	0.0461 ns	0.92	0.03	-	-	-	-

SetInternalField	.NET 4.7.2	Setter	Private	3.384 ns	0.0533 ns	0.0445 ns	1.00	0.00	-	-	-	-
SetInternalField	.NET Core 3.1	Setter	Private	3.156 ns	0.0327 ns	0.0273 ns	0.93	0.02	-	-	-	-

SetProtectedField	.NET 4.7.2	Setter	Private	3.368 ns	0.0396 ns	0.0331 ns	1.00	0.00	-	-	-	-
SetProtectedField	.NET Core 3.1	Setter	Private	2.953 ns	0.0264 ns	0.0221 ns	0.88	0.01	-	-	-	-

SetPrivateField	.NET 4.7.2	Setter	Private	3.353 ns	0.0471 ns	0.0393 ns	1.00	0.00	-	-	-	-
SetPrivateField	.NET Core 3.1	Setter	Private	3.160 ns	0.0592 ns	0.0525 ns	0.94	0.02	-	-	-	-

GetPublicStaticField	.NET 4.7.2	Static Getter	Public	2.433 ns	0.0616 ns	0.0576 ns	1.00	0.00	-	-	-	-
GetPublicStaticField	.NET Core 3.1	Static Getter	Public	2.191 ns	0.0497 ns	0.0465 ns	0.90	0.03	-	-	-	-

GetInternalStaticField	.NET 4.7.2	Static Getter	Public	3.189 ns	0.0460 ns	0.0384 ns	1.00	0.00	-	-	-	-
GetInternalStaticField	.NET Core 3.1	Static Getter	Public	3.964 ns	0.0426 ns	0.0332 ns	1.24	0.02	-	-	-	-

GetProtectedStaticField	.NET 4.7.2	Static Getter	Public	3.201 ns	0.0625 ns	0.0522 ns	1.00	0.00	-	-	-	-
GetProtectedStaticField	.NET Core 3.1	Static Getter	Public	3.998 ns	0.0359 ns	0.0300 ns	1.25	0.02	-	-	-	-

GetPrivateStaticField	.NET 4.7.2	Static Getter	Public	3.220 ns	0.0675 ns	0.0631 ns	1.00	0.00	-	-	-	-
GetPrivateStaticField	.NET Core 3.1	Static Getter	Public	4.068 ns	0.0766 ns	0.0717 ns	1.26	0.04	-	-	-	-

SetPublicStaticField	.NET 4.7.2	Static Setter	Public	2.175 ns	0.0506 ns	0.0474 ns	1.00	0.00	-	-	-	-
SetPublicStaticField	.NET Core 3.1	Static Setter	Public	2.088 ns	0.0281 ns	0.0235 ns	0.96	0.02	-	-	-	-

SetInternalStaticField	.NET 4.7.2	Static Setter	Public	2.972 ns	0.0674 ns	0.0598 ns	1.00	0.00	-	-	-	-
SetInternalStaticField	.NET Core 3.1	Static Setter	Public	3.966 ns	0.0569 ns	0.0504 ns	1.34	0.03	-	-	-	-

SetProtectedStaticField	.NET 4.7.2	Static Setter	Public	2.936 ns	0.0451 ns	0.0376 ns	1.00	0.00	-	-	-	-
SetProtectedStaticField	.NET Core 3.1	Static Setter	Public	3.923 ns	0.0517 ns	0.0432 ns	1.34	0.02	-	-	-	-

SetPrivateStaticField	.NET 4.7.2	Static Setter	Public	2.957 ns	0.0740 ns	0.0656 ns	1.00	0.00	-	-	-	-
SetPrivateStaticField	.NET Core 3.1	Static Setter	Public	3.933 ns	0.0221 ns	0.0172 ns	1.33	0.03	-	-	-	-

GetPublicField	.NET 4.7.2	Getter	Public	2.326 ns	0.0442 ns	0.0369 ns	1.00	0.00	-	-	-	-
GetPublicField	.NET Core 3.1	Getter	Public	2.421 ns	0.0646 ns	0.0573 ns	1.04	0.04	-	-	-	-

GetInternalField	.NET 4.7.2	Getter	Public	3.418 ns	0.0579 ns	0.0483 ns	1.00	0.00	-	-	-	-
GetInternalField	.NET Core 3.1	Getter	Public	3.251 ns	0.0490 ns	0.0409 ns	0.95	0.02	-	-	-	-

GetProtectedField	.NET 4.7.2	Getter	Public	3.424 ns	0.0471 ns	0.0393 ns	1.00	0.00	-	-	-	-
GetProtectedField	.NET Core 3.1	Getter	Public	3.232 ns	0.0316 ns	0.0264 ns	0.94	0.01	-	-	-	-

GetPrivateField	.NET 4.7.2	Getter	Public	3.384 ns	0.0300 ns	0.0251 ns	1.00	0.00	-	-	-	-
GetPrivateField	.NET Core 3.1	Getter	Public	3.338 ns	0.0897 ns	0.0839 ns	0.98	0.03	-	-	-	-

SetPublicField	.NET 4.7.2	Setter	Public	2.078 ns	0.0375 ns	0.0333 ns	1.00	0.00	-	-	-	-
SetPublicField	.NET Core 3.1	Setter	Public	2.396 ns	0.0510 ns	0.0477 ns	1.15	0.03	-	-	-	-

SetInternalField	.NET 4.7.2	Setter	Public	3.402 ns	0.0424 ns	0.0354 ns	1.00	0.00	-	-	-	-
SetInternalField	.NET Core 3.1	Setter	Public	3.146 ns	0.0248 ns	0.0207 ns	0.92	0.01	-	-	-	-

SetProtectedField	.NET 4.7.2	Setter	Public	3.368 ns	0.0443 ns	0.0370 ns	1.00	0.00	-	-	-	-
SetProtectedField	.NET Core 3.1	Setter	Public	3.167 ns	0.0242 ns	0.0189 ns	0.94	0.01	-	-	-	-

SetPrivateField	.NET 4.7.2	Setter	Public	3.392 ns	0.0563 ns	0.0499 ns	1.00	0.00	-	-	-	-
SetPrivateField	.NET Core 3.1	Setter	Public	3.171 ns	0.0663 ns	0.0621 ns	0.94	0.02	-	-	-	-

Properties Getter and Setter

The proxy column indicates the target type access modifier.

Tests with blank proxy are the direct access of the value through an interface without creating any duck type proxy.

BenchmarkDotNet=v0.12.1, OS=Windows 10.0.19041.508 (2004/?/20H1)
Intel Core i7-1068NG7 CPU 2.30GHz, 1 CPU, 2 logical and 2 physical cores
.NET Core SDK=3.1.402
  [Host]     : .NET Core 3.1.8 (CoreCLR 4.700.20.41105, CoreFX 4.700.20.41903), X64 RyuJIT
  Job-QIOTKF : .NET Framework 4.8 (4.8.4220.0), X64 RyuJIT
  Job-FEKUVA : .NET Core 3.1.8 (CoreCLR 4.700.20.41105, CoreFX 4.700.20.41903), X64 RyuJIT

Method	Runtime	Categories	proxy	Mean	Error	StdDev	Ratio	RatioSD	Gen 0	Gen 1	Gen 2	Allocated
GetPublicProperty	.NET 4.7.2	Getter		1.046 ns	0.0457 ns	0.0449 ns	1.00	0.00	-	-	-	-
GetPublicProperty	.NET Core 3.1	Getter		1.300 ns	0.0329 ns	0.0292 ns	1.24	0.05	-	-	-	-

SetPublicProperty	.NET 4.7.2	Setter		1.283 ns	0.0225 ns	0.0188 ns	1.00	0.00	-	-	-	-
SetPublicProperty	.NET Core 3.1	Setter		1.048 ns	0.0262 ns	0.0232 ns	0.82	0.02	-	-	-	-

GetIndexerProperty	.NET 4.7.2	Indexer Getter		1.027 ns	0.0271 ns	0.0240 ns	1.00	0.00	-	-	-	-
GetIndexerProperty	.NET Core 3.1	Indexer Getter		1.014 ns	0.0435 ns	0.0407 ns	0.99	0.04	-	-	-	-

SetIndexerProperty	.NET 4.7.2	Indexer Setter		1.303 ns	0.0366 ns	0.0324 ns	1.00	0.00	-	-	-	-
SetIndexerProperty	.NET Core 3.1	Indexer Setter		1.315 ns	0.0383 ns	0.0358 ns	1.01	0.04	-	-	-	-

GetPublicStaticProperty	.NET 4.7.2	Static Getter	Internal	2.849 ns	0.0529 ns	0.0442 ns	1.00	0.00	-	-	-	-
GetPublicStaticProperty	.NET Core 3.1	Static Getter	Internal	4.029 ns	0.0897 ns	0.0839 ns	1.42	0.04	-	-	-	-

GetInternalStaticProperty	.NET 4.7.2	Static Getter	Internal	2.888 ns	0.0606 ns	0.0567 ns	1.00	0.00	-	-	-	-
GetInternalStaticProperty	.NET Core 3.1	Static Getter	Internal	4.263 ns	0.0799 ns	0.0708 ns	1.48	0.04	-	-	-	-

GetProtectedStaticProperty	.NET 4.7.2	Static Getter	Internal	2.855 ns	0.0372 ns	0.0311 ns	1.00	0.00	-	-	-	-
GetProtectedStaticProperty	.NET Core 3.1	Static Getter	Internal	4.277 ns	0.0655 ns	0.0612 ns	1.50	0.02	-	-	-	-

GetPrivateStaticProperty	.NET 4.7.2	Static Getter	Internal	2.911 ns	0.0726 ns	0.0679 ns	1.00	0.00	-	-	-	-
GetPrivateStaticProperty	.NET Core 3.1	Static Getter	Internal	4.030 ns	0.0721 ns	0.0675 ns	1.39	0.04	-	-	-	-

SetPublicStaticProperty	.NET 4.7.2	Static Setter	Internal	3.221 ns	0.0757 ns	0.0632 ns	1.00	0.00	-	-	-	-
SetPublicStaticProperty	.NET Core 3.1	Static Setter	Internal	3.955 ns	0.0575 ns	0.0481 ns	1.23	0.03	-	-	-	-

SetInternalStaticProperty	.NET 4.7.2	Static Setter	Internal	3.174 ns	0.0334 ns	0.0279 ns	1.00	0.00	-	-	-	-
SetInternalStaticProperty	.NET Core 3.1	Static Setter	Internal	4.212 ns	0.0608 ns	0.0507 ns	1.33	0.01	-	-	-	-

SetProtectedStaticProperty	.NET 4.7.2	Static Setter	Internal	3.247 ns	0.0846 ns	0.1100 ns	1.00	0.00	-	-	-	-
SetProtectedStaticProperty	.NET Core 3.1	Static Setter	Internal	4.190 ns	0.0312 ns	0.0243 ns	1.27	0.05	-	-	-	-

SetPrivateStaticProperty	.NET 4.7.2	Static Setter	Internal	3.205 ns	0.0714 ns	0.0668 ns	1.00	0.00	-	-	-	-
SetPrivateStaticProperty	.NET Core 3.1	Static Setter	Internal	4.249 ns	0.0814 ns	0.0721 ns	1.32	0.03	-	-	-	-

GetPublicProperty	.NET 4.7.2	Getter	Internal	3.241 ns	0.0758 ns	0.0672 ns	1.00	0.00	-	-	-	-
GetPublicProperty	.NET Core 3.1	Getter	Internal	3.257 ns	0.0730 ns	0.0683 ns	1.01	0.03	-	-	-	-

GetInternalProperty	.NET 4.7.2	Getter	Internal	3.239 ns	0.0467 ns	0.0390 ns	1.00	0.00	-	-	-	-
GetInternalProperty	.NET Core 3.1	Getter	Internal	3.256 ns	0.0570 ns	0.0476 ns	1.01	0.02	-	-	-	-

GetProtectedProperty	.NET 4.7.2	Getter	Internal	3.290 ns	0.0504 ns	0.0447 ns	1.00	0.00	-	-	-	-
GetProtectedProperty	.NET Core 3.1	Getter	Internal	3.350 ns	0.0911 ns	0.0935 ns	1.02	0.03	-	-	-	-

GetPrivateProperty	.NET 4.7.2	Getter	Internal	3.259 ns	0.0609 ns	0.0540 ns	1.00	0.00	-	-	-	-
GetPrivateProperty	.NET Core 3.1	Getter	Internal	3.243 ns	0.0814 ns	0.0722 ns	1.00	0.03	-	-	-	-

SetPublicProperty	.NET 4.7.2	Setter	Internal	3.192 ns	0.0749 ns	0.0664 ns	1.00	0.00	-	-	-	-
SetPublicProperty	.NET Core 3.1	Setter	Internal	2.912 ns	0.0481 ns	0.0401 ns	0.91	0.02	-	-	-	-

SetInternalProperty	.NET 4.7.2	Setter	Internal	3.211 ns	0.0482 ns	0.0427 ns	1.00	0.00	-	-	-	-
SetInternalProperty	.NET Core 3.1	Setter	Internal	2.914 ns	0.0401 ns	0.0335 ns	0.91	0.02	-	-	-	-

SetProtectedProperty	.NET 4.7.2	Setter	Internal	3.176 ns	0.0477 ns	0.0399 ns	1.00	0.00	-	-	-	-
SetProtectedProperty	.NET Core 3.1	Setter	Internal	2.890 ns	0.0454 ns	0.0379 ns	0.91	0.02	-	-	-	-

SetPrivateProperty	.NET 4.7.2	Setter	Internal	3.170 ns	0.0466 ns	0.0413 ns	1.00	0.00	-	-	-	-
SetPrivateProperty	.NET Core 3.1	Setter	Internal	2.948 ns	0.0720 ns	0.0674 ns	0.93	0.03	-	-	-	-

GetIndexerProperty	.NET 4.7.2	Indexer Getter	Internal	3.274 ns	0.0724 ns	0.0642 ns	1.00	0.00	-	-	-	-
GetIndexerProperty	.NET Core 3.1	Indexer Getter	Internal	3.282 ns	0.0818 ns	0.0765 ns	1.00	0.01	-	-	-	-

SetIndexerProperty	.NET 4.7.2	Indexer Setter	Internal	3.087 ns	0.0686 ns	0.0674 ns	1.00	0.00	-	-	-	-
SetIndexerProperty	.NET Core 3.1	Indexer Setter	Internal	3.184 ns	0.0323 ns	0.0252 ns	1.03	0.03	-	-	-	-

GetPublicStaticProperty	.NET 4.7.2	Static Getter	Private	2.876 ns	0.0561 ns	0.0497 ns	1.00	0.00	-	-	-	-
GetPublicStaticProperty	.NET Core 3.1	Static Getter	Private	4.013 ns	0.0914 ns	0.0810 ns	1.40	0.04	-	-	-	-

GetInternalStaticProperty	.NET 4.7.2	Static Getter	Private	2.851 ns	0.0339 ns	0.0283 ns	1.00	0.00	-	-	-	-
GetInternalStaticProperty	.NET Core 3.1	Static Getter	Private	4.019 ns	0.0669 ns	0.0559 ns	1.41	0.02	-	-	-	-

GetProtectedStaticProperty	.NET 4.7.2	Static Getter	Private	2.838 ns	0.0373 ns	0.0311 ns	1.00	0.00	-	-	-	-
GetProtectedStaticProperty	.NET Core 3.1	Static Getter	Private	4.035 ns	0.0962 ns	0.0900 ns	1.42	0.03	-	-	-	-

GetPrivateStaticProperty	.NET 4.7.2	Static Getter	Private	2.918 ns	0.0825 ns	0.0731 ns	1.00	0.00	-	-	-	-
GetPrivateStaticProperty	.NET Core 3.1	Static Getter	Private	4.134 ns	0.0657 ns	0.0614 ns	1.42	0.03	-	-	-	-

SetPublicStaticProperty	.NET 4.7.2	Static Setter	Private	3.219 ns	0.0472 ns	0.0418 ns	1.00	0.00	-	-	-	-
SetPublicStaticProperty	.NET Core 3.1	Static Setter	Private	3.989 ns	0.0664 ns	0.0588 ns	1.24	0.03	-	-	-	-

SetInternalStaticProperty	.NET 4.7.2	Static Setter	Private	3.271 ns	0.0901 ns	0.0843 ns	1.00	0.00	-	-	-	-
SetInternalStaticProperty	.NET Core 3.1	Static Setter	Private	4.304 ns	0.0783 ns	0.0694 ns	1.32	0.04	-	-	-	-

SetProtectedStaticProperty	.NET 4.7.2	Static Setter	Private	3.241 ns	0.0724 ns	0.0677 ns	1.00	0.00	-	-	-	-
SetProtectedStaticProperty	.NET Core 3.1	Static Setter	Private	4.180 ns	0.0391 ns	0.0305 ns	1.29	0.03	-	-	-	-

SetPrivateStaticProperty	.NET 4.7.2	Static Setter	Private	3.161 ns	0.0371 ns	0.0310 ns	1.00	0.00	-	-	-	-
SetPrivateStaticProperty	.NET Core 3.1	Static Setter	Private	4.186 ns	0.0527 ns	0.0412 ns	1.33	0.01	-	-	-	-

GetPublicProperty	.NET 4.7.2	Getter	Private	3.245 ns	0.0466 ns	0.0389 ns	1.00	0.00	-	-	-	-
GetPublicProperty	.NET Core 3.1	Getter	Private	3.320 ns	0.0889 ns	0.0988 ns	1.03	0.03	-	-	-	-

GetInternalProperty	.NET 4.7.2	Getter	Private	3.237 ns	0.0475 ns	0.0371 ns	1.00	0.00	-	-	-	-
GetInternalProperty	.NET Core 3.1	Getter	Private	3.301 ns	0.0874 ns	0.0972 ns	1.01	0.03	-	-	-	-

GetProtectedProperty	.NET 4.7.2	Getter	Private	3.255 ns	0.0309 ns	0.0241 ns	1.00	0.00	-	-	-	-
GetProtectedProperty	.NET Core 3.1	Getter	Private	3.295 ns	0.0436 ns	0.0340 ns	1.01	0.01	-	-	-	-

GetPrivateProperty	.NET 4.7.2	Getter	Private	3.280 ns	0.0656 ns	0.0614 ns	1.00	0.00	-	-	-	-
GetPrivateProperty	.NET Core 3.1	Getter	Private	3.309 ns	0.0864 ns	0.0766 ns	1.01	0.03	-	-	-	-

SetPublicProperty	.NET 4.7.2	Setter	Private	3.205 ns	0.0679 ns	0.0635 ns	1.00	0.00	-	-	-	-
SetPublicProperty	.NET Core 3.1	Setter	Private	2.959 ns	0.0682 ns	0.0605 ns	0.93	0.03	-	-	-	-

SetInternalProperty	.NET 4.7.2	Setter	Private	3.184 ns	0.0479 ns	0.0400 ns	1.00	0.00	-	-	-	-
SetInternalProperty	.NET Core 3.1	Setter	Private	2.943 ns	0.0632 ns	0.0592 ns	0.92	0.03	-	-	-	-

SetProtectedProperty	.NET 4.7.2	Setter	Private	3.247 ns	0.0927 ns	0.1206 ns	1.00	0.00	-	-	-	-
SetProtectedProperty	.NET Core 3.1	Setter	Private	2.934 ns	0.0608 ns	0.0539 ns	0.89	0.04	-	-	-	-

SetPrivateProperty	.NET 4.7.2	Setter	Private	3.182 ns	0.0711 ns	0.0594 ns	1.00	0.00	-	-	-	-
SetPrivateProperty	.NET Core 3.1	Setter	Private	2.938 ns	0.0562 ns	0.0499 ns	0.92	0.02	-	-	-	-

GetIndexerProperty	.NET 4.7.2	Indexer Getter	Private	3.334 ns	0.0826 ns	0.0772 ns	1.00	0.00	-	-	-	-
GetIndexerProperty	.NET Core 3.1	Indexer Getter	Private	3.523 ns	0.0732 ns	0.0611 ns	1.05	0.02	-	-	-	-

SetIndexerProperty	.NET 4.7.2	Indexer Setter	Private	3.099 ns	0.0479 ns	0.0374 ns	1.00	0.00	-	-	-	-
SetIndexerProperty	.NET Core 3.1	Indexer Setter	Private	3.167 ns	0.0535 ns	0.0447 ns	1.02	0.02	-	-	-	-

GetPublicStaticProperty	.NET 4.7.2	Static Getter	Public	2.085 ns	0.0345 ns	0.0288 ns	1.00	0.00	-	-	-	-
GetPublicStaticProperty	.NET Core 3.1	Static Getter	Public	2.159 ns	0.0326 ns	0.0255 ns	1.03	0.02	-	-	-	-

GetInternalStaticProperty	.NET 4.7.2	Static Getter	Public	2.969 ns	0.0492 ns	0.0384 ns	1.00	0.00	-	-	-	-
GetInternalStaticProperty	.NET Core 3.1	Static Getter	Public	3.197 ns	0.0484 ns	0.0404 ns	1.08	0.02	-	-	-	-

GetProtectedStaticProperty	.NET 4.7.2	Static Getter	Public	2.935 ns	0.0434 ns	0.0363 ns	1.00	0.00	-	-	-	-
GetProtectedStaticProperty	.NET Core 3.1	Static Getter	Public	3.234 ns	0.0757 ns	0.0632 ns	1.10	0.03	-	-	-	-

GetPrivateStaticProperty	.NET 4.7.2	Static Getter	Public	3.003 ns	0.0723 ns	0.0676 ns	1.00	0.00	-	-	-	-
GetPrivateStaticProperty	.NET Core 3.1	Static Getter	Public	3.024 ns	0.0561 ns	0.0525 ns	1.01	0.03	-	-	-	-

SetPublicStaticProperty	.NET 4.7.2	Static Setter	Public	2.443 ns	0.0405 ns	0.0359 ns	1.00	0.00	-	-	-	-
SetPublicStaticProperty	.NET Core 3.1	Static Setter	Public	2.073 ns	0.0400 ns	0.0334 ns	0.85	0.01	-	-	-	-

SetInternalStaticProperty	.NET 4.7.2	Static Setter	Public	3.109 ns	0.0536 ns	0.0448 ns	1.00	0.00	-	-	-	-
SetInternalStaticProperty	.NET Core 3.1	Static Setter	Public	3.174 ns	0.0548 ns	0.0486 ns	1.02	0.02	-	-	-	-

SetProtectedStaticProperty	.NET 4.7.2	Static Setter	Public	3.120 ns	0.0602 ns	0.0503 ns	1.00	0.00	-	-	-	-
SetProtectedStaticProperty	.NET Core 3.1	Static Setter	Public	3.194 ns	0.0629 ns	0.0557 ns	1.02	0.02	-	-	-	-

SetPrivateStaticProperty	.NET 4.7.2	Static Setter	Public	3.161 ns	0.0777 ns	0.0727 ns	1.00	0.00	-	-	-	-
SetPrivateStaticProperty	.NET Core 3.1	Static Setter	Public	3.194 ns	0.0502 ns	0.0419 ns	1.01	0.03	-	-	-	-

GetPublicProperty	.NET 4.7.2	Getter	Public	2.214 ns	0.0432 ns	0.0383 ns	1.00	0.00	-	-	-	-
GetPublicProperty	.NET Core 3.1	Getter	Public	2.215 ns	0.0705 ns	0.0692 ns	1.00	0.04	-	-	-	-

GetInternalProperty	.NET 4.7.2	Getter	Public	2.869 ns	0.0425 ns	0.0355 ns	1.00	0.00	-	-	-	-
GetInternalProperty	.NET Core 3.1	Getter	Public	3.079 ns	0.0644 ns	0.0602 ns	1.07	0.03	-	-	-	-

GetProtectedProperty	.NET 4.7.2	Getter	Public	2.876 ns	0.0450 ns	0.0376 ns	1.00	0.00	-	-	-	-
GetProtectedProperty	.NET Core 3.1	Getter	Public	3.033 ns	0.0757 ns	0.0671 ns	1.06	0.03	-	-	-	-

GetPrivateProperty	.NET 4.7.2	Getter	Public	2.902 ns	0.0455 ns	0.0380 ns	1.00	0.00	-	-	-	-
GetPrivateProperty	.NET Core 3.1	Getter	Public	3.011 ns	0.0552 ns	0.0461 ns	1.04	0.02	-	-	-	-

SetPublicProperty	.NET 4.7.2	Setter	Public	2.377 ns	0.0558 ns	0.0522 ns	1.00	0.00	-	-	-	-
SetPublicProperty	.NET Core 3.1	Setter	Public	2.102 ns	0.0543 ns	0.0508 ns	0.88	0.02	-	-	-	-

SetInternalProperty	.NET 4.7.2	Setter	Public	3.138 ns	0.0822 ns	0.0808 ns	1.00	0.00	-	-	-	-
SetInternalProperty	.NET Core 3.1	Setter	Public	2.898 ns	0.0652 ns	0.0578 ns	0.92	0.03	-	-	-	-

SetProtectedProperty	.NET 4.7.2	Setter	Public	3.142 ns	0.0820 ns	0.0727 ns	1.00	0.00	-	-	-	-
SetProtectedProperty	.NET Core 3.1	Setter	Public	2.857 ns	0.0366 ns	0.0305 ns	0.91	0.02	-	-	-	-

SetPrivateProperty	.NET 4.7.2	Setter	Public	3.145 ns	0.0640 ns	0.0567 ns	1.00	0.00	-	-	-	-
SetPrivateProperty	.NET Core 3.1	Setter	Public	2.865 ns	0.0398 ns	0.0332 ns	0.91	0.02	-	-	-	-

GetIndexerProperty	.NET 4.7.2	Indexer Getter	Public	2.214 ns	0.0256 ns	0.0200 ns	1.00	0.00	-	-	-	-
GetIndexerProperty	.NET Core 3.1	Indexer Getter	Public	2.229 ns	0.0704 ns	0.0811 ns	1.01	0.04	-	-	-	-

SetIndexerProperty	.NET 4.7.2	Indexer Setter	Public	2.316 ns	0.0323 ns	0.0270 ns	1.00	0.00	-	-	-	-
SetIndexerProperty	.NET Core 3.1	Indexer Setter	Public	2.360 ns	0.0341 ns	0.0302 ns	1.02	0.01	-	-	-	-

Method Calls

The proxy column indicates the target type access modifier.

Tests with blank proxy are the direct access of the value through an interface without creating any duck type proxy.

BenchmarkDotNet=v0.12.1, OS=Windows 10.0.19041.508 (2004/?/20H1)
Intel Core i7-1068NG7 CPU 2.30GHz, 1 CPU, 2 logical and 2 physical cores
.NET Core SDK=3.1.402
  [Host]     : .NET Core 3.1.8 (CoreCLR 4.700.20.41105, CoreFX 4.700.20.41903), X64 RyuJIT
  Job-CGLGGF : .NET Framework 4.8 (4.8.4220.0), X64 RyuJIT
  Job-GEDFFR : .NET Core 3.1.8 (CoreCLR 4.700.20.41105, CoreFX 4.700.20.41903), X64 RyuJIT

Method	Runtime	Categories	proxy	Mean	Error	StdDev	Ratio	RatioSD	Gen 0	Gen 1	Gen 2	Allocated
PublicVoidMethod	.NET 4.7.2	Void Method		1.3457 ns	0.0441 ns	0.0391 ns	1.00	0.00	-	-	-	-
PublicVoidMethod	.NET Core 3.1	Void Method		1.3195 ns	0.0300 ns	0.0266 ns	0.98	0.03	-	-	-	-

PublicMethod	.NET 4.7.2	Method		0.7032 ns	0.0647 ns	0.0605 ns	1.00	0.00	-	-	-	-
PublicMethod	.NET Core 3.1	Method		1.0446 ns	0.0595 ns	0.0557 ns	1.50	0.16	-	-	-	-

PublicOutParameterMethod	.NET 4.7.2	Out-Param Method		2.2154 ns	0.0305 ns	0.0271 ns	1.00	0.00	-	-	-	-
PublicOutParameterMethod	.NET Core 3.1	Out-Param Method		2.2246 ns	0.0649 ns	0.0607 ns	1.01	0.03	-	-	-	-

PublicVoidMethod	.NET 4.7.2	Void Method	Internal	3.3373 ns	0.0401 ns	0.0335 ns	1.00	0.00	-	-	-	-
PublicVoidMethod	.NET Core 3.1	Void Method	Internal	3.4379 ns	0.0713 ns	0.0632 ns	1.03	0.02	-	-	-	-

PrivateVoidMethod	.NET 4.7.2	Void Method	Internal	3.3397 ns	0.0408 ns	0.0341 ns	1.00	0.00	-	-	-	-
PrivateVoidMethod	.NET Core 3.1	Void Method	Internal	3.4176 ns	0.0515 ns	0.0456 ns	1.02	0.02	-	-	-	-

PublicMethod	.NET 4.7.2	Method	Internal	3.1409 ns	0.0730 ns	0.0647 ns	1.00	0.00	-	-	-	-
PublicMethod	.NET Core 3.1	Method	Internal	3.7283 ns	0.0737 ns	0.0689 ns	1.19	0.04	-	-	-	-

PrivateMethod	.NET 4.7.2	Method	Internal	3.1578 ns	0.1190 ns	0.1113 ns	1.00	0.00	-	-	-	-
PrivateMethod	.NET Core 3.1	Method	Internal	3.3137 ns	0.1062 ns	0.0942 ns	1.05	0.05	-	-	-	-

PublicOutParameterMethod	.NET 4.7.2	Out-Param Method	Internal	4.2402 ns	0.0436 ns	0.0340 ns	1.00	0.00	-	-	-	-
PublicOutParameterMethod	.NET Core 3.1	Out-Param Method	Internal	4.5497 ns	0.1064 ns	0.0995 ns	1.07	0.02	-	-	-	-

PrivateOutParameterMethod	.NET 4.7.2	Out-Param Method	Internal	4.2640 ns	0.0368 ns	0.0307 ns	1.00	0.00	-	-	-	-
PrivateOutParameterMethod	.NET Core 3.1	Out-Param Method	Internal	4.5834 ns	0.0937 ns	0.1003 ns	1.07	0.02	-	-	-	-

PublicVoidMethod	.NET 4.7.2	Void Method	Private	3.3801 ns	0.0650 ns	0.0576 ns	1.00	0.00	-	-	-	-
PublicVoidMethod	.NET Core 3.1	Void Method	Private	3.4223 ns	0.0696 ns	0.0651 ns	1.01	0.02	-	-	-	-

PrivateVoidMethod	.NET 4.7.2	Void Method	Private	3.3691 ns	0.0569 ns	0.0532 ns	1.00	0.00	-	-	-	-
PrivateVoidMethod	.NET Core 3.1	Void Method	Private	3.3862 ns	0.0657 ns	0.0549 ns	1.00	0.02	-	-	-	-

PublicMethod	.NET 4.7.2	Method	Private	3.0958 ns	0.0645 ns	0.0538 ns	1.00	0.00	-	-	-	-
PublicMethod	.NET Core 3.1	Method	Private	3.6469 ns	0.0410 ns	0.0320 ns	1.18	0.02	-	-	-	-

PrivateMethod	.NET 4.7.2	Method	Private	3.1414 ns	0.0910 ns	0.0852 ns	1.00	0.00	-	-	-	-
PrivateMethod	.NET Core 3.1	Method	Private	3.3168 ns	0.0972 ns	0.0910 ns	1.06	0.04	-	-	-	-

PublicOutParameterMethod	.NET 4.7.2	Out-Param Method	Private	4.2712 ns	0.0519 ns	0.0485 ns	1.00	0.00	-	-	-	-
PublicOutParameterMethod	.NET Core 3.1	Out-Param Method	Private	4.4966 ns	0.0507 ns	0.0423 ns	1.05	0.01	-	-	-	-

PrivateOutParameterMethod	.NET 4.7.2	Out-Param Method	Private	4.2237 ns	0.0299 ns	0.0234 ns	1.00	0.00	-	-	-	-
PrivateOutParameterMethod	.NET Core 3.1	Out-Param Method	Private	4.5464 ns	0.0818 ns	0.0765 ns	1.08	0.02	-	-	-	-

PublicVoidMethod	.NET 4.7.2	Void Method	Public	2.3150 ns	0.0717 ns	0.0767 ns	1.00	0.00	-	-	-	-
PublicVoidMethod	.NET Core 3.1	Void Method	Public	2.4284 ns	0.0395 ns	0.0330 ns	1.04	0.04	-	-	-	-

PrivateVoidMethod	.NET 4.7.2	Void Method	Public	2.9836 ns	0.0834 ns	0.0780 ns	1.00	0.00	-	-	-	-
PrivateVoidMethod	.NET Core 3.1	Void Method	Public	3.1669 ns	0.0851 ns	0.0796 ns	1.06	0.04	-	-	-	-

PublicMethod	.NET 4.7.2	Method	Public	1.7100 ns	0.0664 ns	0.0555 ns	1.00	0.00	-	-	-	-
PublicMethod	.NET Core 3.1	Method	Public	2.1847 ns	0.0759 ns	0.0710 ns	1.27	0.06	-	-	-	-

PrivateMethod	.NET 4.7.2	Method	Public	2.7196 ns	0.1125 ns	0.1053 ns	1.00	0.00	-	-	-	-
PrivateMethod	.NET Core 3.1	Method	Public	2.4933 ns	0.0783 ns	0.0694 ns	0.91	0.04	-	-	-	-

PublicOutParameterMethod	.NET 4.7.2	Out-Param Method	Public	2.9139 ns	0.0538 ns	0.0420 ns	1.00	0.00	-	-	-	-
PublicOutParameterMethod	.NET Core 3.1	Out-Param Method	Public	3.1691 ns	0.0546 ns	0.0456 ns	1.09	0.02	-	-	-	-

PrivateOutParameterMethod	.NET 4.7.2	Out-Param Method	Public	3.7001 ns	0.0380 ns	0.0318 ns	1.00	0.00	-	-	-	-
PrivateOutParameterMethod	.NET Core 3.1	Out-Param Method	Public	3.9932 ns	0.0553 ns	0.0490 ns	1.08	0.01	-	-	-	-

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README.md

README.md

OpenTelemetry.AutoInstrumentation.DuckTyping

Example

Proxy types

Controlling bindings

Example with control bindings

Accessor modifiers (AM)

Generics methods

Example with public type

Example with non public type

Duck chaining

Example with chaining

Benchmarks

Fields Getter and Setter

Properties Getter and Setter

Method Calls

Files

README.md

Latest commit

History

README.md

File metadata and controls

OpenTelemetry.AutoInstrumentation.DuckTyping

Example

Proxy types

Controlling bindings

Example with control bindings

Accessor modifiers (AM)

Generics methods

Example with public type

Example with non public type

Duck chaining

Example with chaining

Benchmarks

Fields Getter and Setter

Properties Getter and Setter

Method Calls