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DelegateInvokeTest.cs
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DelegateInvokeTest.cs
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using System;
using System.Reflection;
using BenchmarkDotNet.Attributes;
using WeihanLi.Extensions;
namespace PerformanceTest.ReflectionTests
{
public class DelegateInvokeTest
{
private readonly Delegate _func, _func1;
private readonly string parameter;
private readonly int paramInt;
public DelegateInvokeTest()
{
parameter = "Test";
paramInt = 1;
_func = (Func<string, string>)(str => str);
_func1 = (Func<int, int>)(val => 0);
}
[Benchmark(Baseline = true)]
public object Invoke()
{
return ((Func<string, string>)_func).Invoke(parameter);
}
[Benchmark]
public object InvokeBoxing()
{
return ((Func<int, int>)_func1).Invoke(paramInt);
}
[Benchmark]
public object DynamicInvoke()
{
return _func.DynamicInvoke(parameter);
}
[Benchmark]
public object DynamicInvokeBoxing()
{
return _func1.DynamicInvoke(paramInt);
}
[Benchmark]
public object MethodInfoInvoke()
{
return _func.Method?.Invoke(_func.Target, new object[] { parameter });
}
[Benchmark]
public object MethodInfoInvokeBoxing()
{
return _func1.Method?.Invoke(_func1.Target, new object[] { paramInt });
}
[Benchmark]
public object ReflectInvoke()
{
var funcType = typeof(Func<,>).MakeGenericType(typeof(string), typeof(string));
var method = funcType.GetProperty("Method")?.GetValueGetter()?.Invoke(_func) as MethodInfo;
var target = funcType.GetProperty("Target")?.GetValueGetter()?.Invoke(_func);
return method?.Invoke(target, new object[] { parameter });
}
[Benchmark]
public object ReflectInvokeBoxing()
{
var funcType = typeof(Func<,>).MakeGenericType(typeof(string), typeof(int));
var method = funcType.GetProperty("Method")?.GetValueGetter()?.Invoke(_func1) as MethodInfo;
var target = funcType.GetProperty("Target")?.GetValueGetter()?.Invoke(_func1);
return method?.Invoke(target, new object[] { paramInt });
}
}
}