Reflective

Basic reflection caching library and reflection powered object visitor.

Usage

Before:

var properties = target.GetType().GetProperties()
	.Where(p => p.CanRead
		&& !p.PropertyType.IsPointer
		&& p.GetIndexParameters().Length == 0);

foreach (var prop in properties)
{
	var val = prop.GetValue(target);
}

var _reflectiveCache = new ReflectiveCache();
var properties = _reflectiveCache.Get(target.GetType()).GetProperties()
	.Where(p => p.CanRead
		&& !p.PropertyType.IsPointer
		&& p.GetIndexParameters().Length == 0);

foreach (var prop in properties)
{
	var val = prop.GetValue(target);
}

Reflection Methods Currently Implemented

• Type.GetProperties()
• PropertyInfo.GetValue()
• PropertyInfo.SetValue()
• PropertyInfo.GetIndexParameters()

All other methods just use the underlying version of the code so provide no performance improvement.

Additional Functionality

This library also includes a ReflectivePropertyVisitor useful for traversing an objects parameters and applying a function on matching types.

The following example will execute the provided func on every DataStatusItem hit during tree traversal.

var visitor = new ReflectivePropertyVisitor<DataStatusItem>(x =>
{
    // do something
    return Task.CompletedTask;
});
await visitor.VisitAsync(testObject);

See Reflective.Tests/ReflectivePropertyVisitorTests.cs for an example.

Motivation

The reason for this library is to provide performance improvements traversing an object using reflection - as such not all methods are cached, just those used in ReflectivePropertyVisitor. Further functionality may be added in the future.