public static Func <TInstance, TProperty> GetGetter(string propertyName)
{
if (!Getters.TryGetValue(propertyName, out Func <TInstance, TProperty> getter))
{
getter = FastPropertyFactory.GeneratePropertyGetter <TInstance, TProperty>(propertyName);
Getters[propertyName] = getter;
}
return(getter);
}
public static Action <TInstance, TProperty> GetSetter(string propertyName)
{
if (!Setters.TryGetValue(propertyName, out Action <TInstance, TProperty> setter))
{
setter = FastPropertyFactory.GeneratePropertySetter <TInstance, TProperty>(propertyName);
Setters[propertyName] = setter;
}
return(setter);
}
public static void Main(params string[] args)
{
var stepCount = 5000000UL;
var dummy = new Dummy();
const string propertyName = "Soother";
const bool propertyValue = true;
var propertyInfo = typeof(Dummy).GetProperty(propertyName);
var lambdaExpression = FastPropertyFactory.GeneratePropertySetter <Dummy, bool>(propertyName);
var nativeBenchmark = Benchmark.Run("Native", stepCount, () => dummy.Soother = propertyValue);
var lambdaExpressionBenchmark = Benchmark.Run("Lambda Expression", stepCount, () => lambdaExpression(dummy, propertyValue));
var dictionaryLambdaExpressionBenchmark = Benchmark.Run("Dictionary Access + Lambda Expression", stepCount, () => dummy.Set(propertyName, propertyValue));
var propertyInfoBenchmark = Benchmark.Run("Property Info", stepCount, () => propertyInfo.SetValue(dummy, propertyValue, null));
var benchmarkReports = new[]
{
nativeBenchmark,
lambdaExpressionBenchmark,
dictionaryLambdaExpressionBenchmark,
propertyInfoBenchmark
}.OrderBy(item => item.ElapsedMilliseconds);
benchmarkReports.Join(Environment.NewLine).WriteLineToConsole();
var fastest = benchmarkReports.First().ElapsedMilliseconds;
benchmarkReports.Select(report => (report.ElapsedMilliseconds / fastest).ToString("0.000")).Join(" < ").WriteLineToConsole();
var dictionaryAccess = (dictionaryLambdaExpressionBenchmark.ElapsedMilliseconds / lambdaExpressionBenchmark.ElapsedMilliseconds * 100);
("Dictionary Access: " + dictionaryAccess + " %").WriteLineToConsole();
Console.ReadKey();
}
