Class EnumerableExtensions

Extensions for System.Collections.Generic.IEnumerable<T> that don't currently exist in System.Linq.

Inheritance
System.Object
EnumerableExtensions
Inherited Members
System.Object.ToString()
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
Namespace: IPA.Utilities
Assembly: IPA.Loader.dll
Syntax
public static class EnumerableExtensions

Methods

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NonNull<T>(IEnumerable<T>)

LINQ-style extension method that filters null elements out of an enumeration.

Declaration
public static IEnumerable<T> NonNull<T>(this IEnumerable<T> self)
    where T : class
Parameters
Type Name Description
System.Collections.Generic.IEnumerable<T> self

the enumeration to filter
Returns
Type Description
System.Collections.Generic.IEnumerable<T>

a filtered enumerable
Type Parameters
Name Description
T

the type of the enumeration
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NonNull<T>(IEnumerable<Nullable<T>>)

LINQ-style extension method that filters null elements from an enumeration of nullable types.

Declaration
public static IEnumerable<T> NonNull<T>(this IEnumerable<T?> self)
    where T : struct
Parameters
Type Name Description
System.Collections.Generic.IEnumerable<System.Nullable<T>> self

the enumeration to filter
Returns
Type Description
System.Collections.Generic.IEnumerable<T>

a filtered enumerable
Type Parameters
Name Description
T

the underlying type of the nullable enumeration
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NonNull<T, U>(IEnumerable<T>, Func<T, U>)

LINQ-style extension method that filters null elements out of an enumeration based on a converter.

Declaration
public static IEnumerable<T> NonNull<T, U>(this IEnumerable<T> self, Func<T, U> pred)
    where U : class
Parameters
Type Name Description
System.Collections.Generic.IEnumerable<T> self

the enumeration to filter
System.Func<T, U> pred

the predicate to select for filtering
Returns
Type Description
System.Collections.Generic.IEnumerable<T>

a filtered enumerable
Type Parameters
Name Description
T

the type of the enumeration
U

the type to compare to null
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NonNull<T, U>(IEnumerable<T>, Func<T, Nullable<U>>)

LINQ-style extension method that filters null elements out of an enumeration based on a converter to a nullable type.

Declaration
public static IEnumerable<T> NonNull<T, U>(this IEnumerable<T> self, Func<T, U?> pred)
    where U : struct
Parameters
Type Name Description
System.Collections.Generic.IEnumerable<T> self

the enumeration to filter
System.Func<T, System.Nullable<U>> pred

the predicate to select for filtering
Returns
Type Description
System.Collections.Generic.IEnumerable<T>

a filtered enumerable
Type Parameters
Name Description
T

the type of the enumeration
U

the type of the predicate's resulting nullable