Fast (compared to simple reflection), delegate-based property access in .NET, based on a blog post by jskeet.
Given a class Foo
public class Foo {
public string Bar { get; set; }
}
Retrieving an object's property:
var property = PropertyAccessFactory.CreateForClass(typeof (Foo), "Bar");
var bar = property.GetValue(new Foo {Bar = "baz"});
Or strongly typed:
var property = PropertyAccessFactory.CreateForClass<Foo, string>("Bar");
var bar = property.GetValue(new Foo { Bar = "baz" });
Number of ticks for the given number of iterative gets:
| Iterations | Reflection | Delegate | Direct |
|---|---|---|---|
| 50.000 | 93.300 | 12.737 | 9.809 |
| 100.000 | 187.825 | 24.766 | 20.154 |
| 150.000 | 280.832 | 36.706 | 30.229 |
| 200.000 | 373.274 | 49.217 | 40.202 |
| 250.000 | 466.502 | 61.191 | 50.713 |
| 300.000 | 559.526 | 72.926 | 61.335 |
| 350.000 | 651.977 | 84.761 | 71.146 |
| 400.000 | 744.516 | 96.481 | 80.812 |
Number of ticks for the given number of iterative sets:
| Iterations | Reflection | Delegate | Direct |
|---|---|---|---|
| 50.000 | 125.054 | 17.042 | 8.219 |
| 100.000 | 249.435 | 34.015 | 15.924 |
| 150.000 | 371.886 | 50.324 | 23.561 |
| 200.000 | 494.656 | 66.284 | 30.941 |
| 250.000 | 617.795 | 82.240 | 38.294 |
| 300.000 | 741.123 | 98.500 | 45.612 |
| 350.000 | 862.767 | 114.564 | 53.392 |
| 400.000 | 985.296 | 130.476 | 60.916 |