einarwh’s gists

einarwh / invaders.html

Created November 6, 2011 20:59

HTML hosting page for space invaders!

einarwh / pixit.js

Created November 6, 2011 21:02

JavaScript to load a base64-encoded space invader.

einarwh / WriteResponse.cs

Created November 6, 2011 21:04

Write base64-encoded response.

	private static void WriteResponse(
	HttpResponse response,
	byte[] buffer)
	{
	response.ContentType = "plain/text";
	response.Write(Convert.ToBase64String(buffer));
	response.Flush();
	}

einarwh / Voles.cs

Created December 4, 2011 20:52

Calculating the number of offspring for field voles.

	public class Voles
	{
	private static int _daysBeforeFirst = 25;
	private static int _daysBetween = 20;

	private static Dictionary<int, long> _cache =
	new Dictionary<int, long>();

	public static long F(int days) {
	if (!_cache.ContainsKey(days)) {

einarwh / ViewableAttribute.cs

Created March 24, 2012 07:31

Attribute to mark properties that should do automatic notification when they change value.

public class ViewableAttribute: Attribute {}

einarwh / NotificationTamperer.cs

Created April 8, 2012 21:44

Iterate over types in an assembly, looking for types to tamper with.

	public class NotificationTamperer : ITamperer
	{
	private readonly string _assemblyOutputFileName;

	public NotificationTamperer() : this("default_tampered.dll") {}

	public NotificationTamperer(string assemblyOutputFileName)
	{
	_assemblyOutputFileName = assemblyOutputFileName;
	}

einarwh / MaybeTamperWith.cs

Created April 8, 2012 22:02

Looking for properties to tamper with.

	public bool MaybeTamperWith()
	{
	return _typeDef.IsClass
	&& HasPropertiesToTamperWith()
	&& ReallyTamperWith();
	}

	private bool HasPropertiesToTamperWith()
	{
	FindPropertiesToTamperWith();

einarwh / EnsureTypeImplementsInterface.cs

Created April 8, 2012 22:13

Ensure that the type implements the INotifyPropertyChanged interface.

	private bool ReallyTamperWith()
	{
	EnsureTypeImplementsInterface();
	TamperWithPropertySetters();
	return true;
	}

	private void EnsureTypeImplementsInterface()
	{
	if (!TypeAlreadyImplementsInterface())

einarwh / TypeResolver.cs

Created April 28, 2012 19:07

Helper class to facilitate looking up TypeReference objects for types.

	public class TypeResolver
	{
	private readonly TypeDefinition _typeDef;
	private readonly IDictionary<Type, TypeReference> _typeRefs =
	new Dictionary<Type, TypeReference>();
	private readonly TypeSystem _ts;
	private readonly ModuleDefinition _systemModule;
	private readonly ModuleDefinition _mscorlibModule;

	public TypeResolver(TypeDefinition typeDef)

einarwh / InjectEventHandler.cs

Created April 28, 2012 19:11

Code to inject event handler, without hookup methods.

	private void InjectEventHandler()
	{
	InjectPropertyChangedField();
	InjectEventDeclaration();
	}

	private void InjectPropertyChangedField()
	{
	//.field private class [System]System.ComponentModel.PropertyChangedEventHandler PropertyChanged
	var field = new FieldDefinition(PropertyChangedFieldName,

Einar W. Høst einarwh