PropertyAccessor Class

public abstract class PropertyAccessor : MemberAccessor

using System;
using System.Reflection;
using System.Runtime.Versioning;

using KGySoft.Diagnostics;
using KGySoft.Reflection;

class Example
{
    private class TestClass
    {
        public int TestProperty { get; set; }
    }

    private static string PlatformName => ((TargetFrameworkAttribute)Attribute.GetCustomAttribute(Assembly.GetExecutingAssembly(),
        typeof(TargetFrameworkAttribute))).FrameworkDisplayName;

    static void Main(string[] args)
    {
        var instance = new TestClass();
        PropertyInfo property = instance.GetType().GetProperty(nameof(TestClass.TestProperty));
        PropertyAccessor accessor = PropertyAccessor.GetAccessor(property);

        new PerformanceTest { TestName = $"Set Property - {PlatformName}", Iterations = 1_000_000 }
            .AddCase(() => instance.TestProperty = 1, "Direct set")
            .AddCase(() => property.SetValue(instance, 1), "System.Reflection.PropertyInfo.SetValue")
            .AddCase(() => accessor.Set(instance, 1), "PropertyAccessor.Set")
            .AddCase(() => accessor.SetInstanceValue(instance, 1), "PropertyAccessor.SetInstanceValue<,>")
            .DoTest()
            .DumpResults(Console.Out);

        new PerformanceTest<int> { TestName = $"Get Property - {PlatformName}", Iterations = 1_000_000 }
            .AddCase(() => instance.TestProperty, "Direct get")
            .AddCase(() => (int)property.GetValue(instance), "System.Reflection.PropertyInfo.GetValue")
            .AddCase(() => (int)accessor.Get(instance), "PropertyAccessor.Get")
            .AddCase(() => accessor.GetInstanceValue<TestClass, int>(instance), "PropertyAccessor.GetInstanceValue<,>")
            .DoTest()
            .DumpResults(Console.Out);
    }
}

// This code example produces a similar output to these ones:

// ==[Set Property - .NET 8.0 Results]================================================
// Iterations: 1,000,000
// Warming up: Yes
// Test cases: 4
// Calling GC.Collect: Yes
// Forced CPU Affinity: No
// Cases are sorted by time (quickest first)
// --------------------------------------------------
// 1. Direct set: average time: 3.02 ms
// 2. PropertyAccessor.SetInstanceValue<,>: average time: 4.70 ms (+1.67 ms / 155.43%)
// 3. PropertyAccessor.Set: average time: 11.60 ms (+8.58 ms / 384.08%)
// 4. System.Reflection.PropertyInfo.SetValue: average time: 25.79 ms (+22.77 ms / 853.68%)
// 
// ==[Get Property - .NET 8.0 Results]================================================
// Iterations: 1,000,000
// Warming up: Yes
// Test cases: 4
// Calling GC.Collect: Yes
// Forced CPU Affinity: No
// Cases are sorted by time (quickest first)
// --------------------------------------------------
// 1. Direct get: average time: 2.86 ms
// 2. PropertyAccessor.GetInstanceValue<,>: average time: 4.80 ms (+1.95 ms / 168.15%)
// 3. PropertyAccessor.Get: average time: 11.56 ms (+8.71 ms / 404.98%)
// 4. System.Reflection.PropertyInfo.GetValue: average time: 17.05 ms (+14.20 ms / 597.12%)

// ==[Set Property - .NET Framework 4.8 Results]================================================
// Iterations: 1,000,000
// Warming up: Yes
// Test cases: 4
// Calling GC.Collect: Yes
// Forced CPU Affinity: No
// Cases are sorted by time (quickest first)
// --------------------------------------------------
// 1. Direct set: average time: 3.63 ms
// 2. PropertyAccessor.SetInstanceValue<,>: average time: 12.05 ms (+8.42 ms / 331.91%)
// 3. PropertyAccessor.Set: average time: 18.20 ms (+14.57 ms / 501.41%)
// 4. System.Reflection.PropertyInfo.SetValue: average time: 186.50 ms (+182.87 ms / 5,137.78%)
// 
// ==[Get Property - .NET Framework 4.8 Results]================================================
// Iterations: 1,000,000
// Warming up: Yes
// Test cases: 4
// Calling GC.Collect: Yes
// Forced CPU Affinity: No
// Cases are sorted by time (quickest first)
// --------------------------------------------------
// 1. Direct get: average time: 3.51 ms
// 2. PropertyAccessor.GetInstanceValue<,>: average time: 11.12 ms (+7.62 ms / 317.21%)
// 3. PropertyAccessor.Get: average time: 15.01 ms (+11.50 ms / 428.04%)
// 4. System.Reflection.PropertyInfo.GetValue: average time: 120.99 ms (+117.49 ms / 3,450.32%)