/// <summary>
/// Initializes a new instance of the <see cref="ConcreteMixinTypeIdentifier"/> class.
/// </summary>
/// <param name="mixinType">The mixin type for which a concrete type was generated.</param>
/// <param name="overriders">Mixin methods that override methods of the target class.</param>
/// <param name="overridden">Mixin methods that are overridden by the target class.</param>
public ConcreteMixinTypeIdentifier(Type mixinType, HashSet <MethodInfo> overriders, HashSet <MethodInfo> overridden)
{
ArgumentUtility.CheckNotNull("mixinType", mixinType);
ArgumentUtility.CheckNotNull("overriders", overriders);
ArgumentUtility.CheckNotNull("overridden", overridden);
_mixinType = mixinType;
_overriders = overriders;
_overridden = overridden;
_cachedHashCode = MixinType.GetHashCode()
^ EqualityUtility.GetXorHashCode(_overriders)
^ EqualityUtility.GetXorHashCode(_overridden);
}
public void GetXorHashCode()
{
IEnumerable objects1 = new int[] { 1, 2, 3 };
IEnumerable objects2 = new int[] { 1, 2, 3 };
Assert.That(EqualityUtility.GetXorHashCode(objects2), Is.EqualTo(EqualityUtility.GetXorHashCode(objects1)));
IEnumerable objects3 = new int[] { 3, 2, 1 };
Assert.That(EqualityUtility.GetXorHashCode(objects3), Is.EqualTo(EqualityUtility.GetXorHashCode(objects1)));
IEnumerable objects4 = new int[] { 1, 2, 17 };
Assert.That(EqualityUtility.GetXorHashCode(objects4), Is.Not.EqualTo(EqualityUtility.GetXorHashCode(objects1)));
}
/// <summary>
/// Initializes a new instance of the <see cref="MixinContext"/> class.
/// </summary>
/// <param name="mixinKind">The kind of relationship the configured mixin has with its target class.</param>
/// <param name="mixinType">The mixin type represented by this <see cref="MixinContext"/>.</param>
/// <param name="introducedMemberVisibility">The default visbility of introduced members.</param>
/// <param name="explicitDependencies">The explicit dependencies of the mixin.</param>
/// <param name="origin">
/// A description of where the <see cref="MixinContext"/> originates from. Note that <paramref name="origin"/> is not considered when comparing
/// <see cref="MixinContext"/> objects for equality.
/// </param>
public MixinContext(
MixinKind mixinKind,
Type mixinType,
MemberVisibility introducedMemberVisibility,
IEnumerable <Type> explicitDependencies,
MixinContextOrigin origin)
{
ArgumentUtility.CheckNotNull("mixinType", mixinType);
ArgumentUtility.CheckNotNull("explicitDependencies", explicitDependencies);
ArgumentUtility.CheckNotNull("origin", origin);
_mixinType = mixinType;
_mixinKind = mixinKind;
_introducedMemberVisibility = introducedMemberVisibility;
_explicitDependencies = new HashSet <Type> (explicitDependencies).AsReadOnly();
_origin = origin;
_cachedHashCode = EqualityUtility.GetRotatedHashCode(
_mixinKind,
_mixinType,
EqualityUtility.GetXorHashCode(ExplicitDependencies),
IntroducedMemberVisibility);
}
private static int CalculateHashCode(ClassContext classContext)
{
return(classContext.Type.GetHashCode()
^ EqualityUtility.GetXorHashCode(classContext.Mixins)
^ EqualityUtility.GetXorHashCode(classContext.ComposedInterfaces));
}
private static int CalculateHashCode(IEnumerable <T> items)
{
return(EqualityUtility.GetXorHashCode(items));
}
