Option Class

Definition

Namespace

Bodu.Functional

Assembly

Bodu.Core.dll

Package

Bodu.Core 1.0.1

Source

Option.cs

Provides factory methods for creating Option<T> values with type inference at the call site.

public static class Option

Inheritance

object

Option

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Remarks

The members mirror the static surface of Option<T> so callers can write Option.Some(3) instead of Option<int>.Some(3), and add FromNullable<T>(T?) - the Nullable<T> lift that the implicit conversion on the generic type cannot express.

Methods

FromNullable<T>(T?)

Converts a nullable value type to an option, mapping null to None.

public static Option<T> FromNullable<T>(T? value) where T : struct

Parameters

value T?

The nullable value to lift.

Returns

Option<T>

Some(value.Value) when value has a value; otherwise None.

Type Parameters

T

The underlying value type.

Examples

int? parsed = TryParseOrNull(text);
Option<int> option = Option.FromNullable(parsed); // None when parsed is null

None<T>()

Returns the option of the specified type that carries no value.

public static Option<T> None<T>()

Returns

Option<T>

An option whose IsNone is true.

Type Parameters

T

The value type of the option.

Some<T>(T)

Creates an option carrying the specified non-null value.

public static Option<T> Some<T>(T value)

Parameters

value T

The value to wrap. Must not be null.

Returns

Option<T>

An option whose IsSome is true.

Type Parameters

T

The type of the value.

Exceptions

ArgumentNullException

value is null.

Applies to

Product	Versions
.NET	8, 10