public static TypeNameStyle Reduce(this TypeNameStyle style, int steps = 1)
{
var newStep = (int)style - steps;
newStep = newStep.Clamp(0, BEnum.GetValues <TypeNameStyle>().Cast <int>().Max());
return((TypeNameStyle)newStep);
}
/// <summary>Checks whether the given type is assignable to the given type name.</summary>
/// <param name="type">The type.</param>
/// <param name="typeName">Name of the type.</param>
/// <param name="typeNameStyle">The type name style.</param>
/// <returns></returns>
public static bool IsAssignableTo(this Type type, string typeName, TypeNameStyle typeNameStyle)
{
if (typeNameStyle == TypeNameStyle.Name && type.Name == typeName)
{
return(true);
}
if (typeNameStyle == TypeNameStyle.FullName && type.FullName == typeName)
{
return(true);
}
return(type.InheritsFrom(typeName, typeNameStyle));
}
/// <summary>Checks whether the given type inherits from the given type name.</summary>
/// <param name="type">The type.</param>
/// <param name="typeName">Name of the type.</param>
/// <param name="typeNameStyle">The type name style.</param>
/// <returns>true if the type inherits from typeName.</returns>
public static bool InheritsFrom(this Type type, string typeName, TypeNameStyle typeNameStyle)
{
var baseType = type.GetTypeInfo().BaseType;
while (baseType != null)
{
if (typeNameStyle == TypeNameStyle.Name && baseType.Name == typeName)
{
return(true);
}
if (typeNameStyle == TypeNameStyle.FullName && baseType.FullName == typeName)
{
return(true);
}
baseType = baseType.GetTypeInfo().BaseType;
}
return(false);
}
/// <summary>Checks whether the given type is assignable to the given type name.</summary>
/// <param name="type">The type.</param>
/// <param name="typeName">Name of the type.</param>
/// <param name="typeNameStyle">The type name style.</param>
/// <returns></returns>
public static bool IsAssignableToTypeName(this Type type, string typeName, TypeNameStyle typeNameStyle)
{
if (typeNameStyle == TypeNameStyle.Name && type.Name == typeName)
{
return(true);
}
if (typeNameStyle == TypeNameStyle.FullName && type.FullName == typeName)
{
return(true);
}
return(type.InheritsFromTypeName(typeName, typeNameStyle) ||
#if NETSTANDARD1_0
(typeNameStyle == TypeNameStyle.Name && type.GetTypeInfo().ImplementedInterfaces.Any(i => i.Name == typeName)) ||
(typeNameStyle == TypeNameStyle.FullName && type.GetTypeInfo().ImplementedInterfaces.Any(i => i.FullName == typeName)));
#else
(typeNameStyle == TypeNameStyle.Name && type.GetInterfaces().Any(i => i.Name == typeName)) ||
(typeNameStyle == TypeNameStyle.FullName && type.GetInterfaces().Any(i => i.FullName == typeName));
#endif
}
/// <summary>Tries to get the first object which is assignable to the given type name.</summary>
/// <param name="attributes">The attributes.</param>
/// <param name="typeName">Type of the attribute.</param>
/// <param name="typeNameStyle">The type name style.</param>
/// <returns>May return null (not found).</returns>
public static T TryGetIfAssignableTo <T>(this IEnumerable <T> attributes, string typeName, TypeNameStyle typeNameStyle = TypeNameStyle.FullName)
{
return(attributes != null?
attributes.FirstOrDefault(a => a.GetType().IsAssignableTo(typeName, typeNameStyle)) :
default(T));
}
/// <summary>Tries to get the first object of the given type name.</summary>
/// <param name="attributes">The attributes.</param>
/// <param name="typeName">Type of the attribute.</param>
/// <param name="typeNameStyle">The type name style.</param>
/// <returns>May return null.</returns>
public static T TryGetByObjectType <T>(this IEnumerable <T> attributes, string typeName, TypeNameStyle typeNameStyle = TypeNameStyle.FullName)
{
return(attributes.FirstOrDefault(a => a.GetType().FullName == typeName));
}
/// <summary>Tries to get the first object which is assignable to the given type name.</summary>
/// <param name="objects">The objects.</param>
/// <param name="typeName">Type of the attribute.</param>
/// <param name="typeNameStyle">The type name style.</param>
/// <returns>May return null (not found).</returns>
public static T?FirstAssignableToTypeNameOrDefault <T>(this IEnumerable <T>?objects, string typeName, TypeNameStyle typeNameStyle = TypeNameStyle.FullName)
{
return(objects != null?
objects.GetAssignableToTypeName(typeName, typeNameStyle).FirstOrDefault() :
/// <summary>Tries to get the first object which is assignable to the given type name.</summary>
/// <param name="objects">The objects.</param>
/// <param name="typeName">Type of the attribute.</param>
/// <param name="typeNameStyle">The type name style.</param>
/// <returns>The objects which are assignable.</returns>
public static IEnumerable <T> GetAssignableToTypeName <T>(this IEnumerable <T> objects, string typeName, TypeNameStyle typeNameStyle = TypeNameStyle.FullName)
{
return(objects.Where(o => o !.GetType().IsAssignableToTypeName(typeName, typeNameStyle)));
}
/// <summary>Checks whether the given type is assignable to the given type name.</summary>
/// <param name="type">The type.</param>
/// <param name="typeName">Name of the type.</param>
/// <param name="typeNameStyle">The type name style.</param>
/// <returns></returns>
public static bool IsAssignableToTypeName(this CachedType type, string typeName, TypeNameStyle typeNameStyle)
{
return(type.OriginalType.IsAssignableToTypeName(typeName, typeNameStyle));
}
