Package hydra.lib.eithers

Class IsLeft

java.lang.Object

hydra.tools.PrimitiveFunction

hydra.lib.eithers.IsLeft

public class IsLeft
extends PrimitiveFunction

Check if an Either value is a Left.

Field Summary

Fields

Modifier and Type	Field	Description
static Name	NAME

Constructor Summary

Constructors

Constructor	Description
IsLeft()

Method Summary

Modifier and Type	Method	Description
static <A,B> java.lang.Boolean	apply(Either<A,B> either)	Check if an Either value is a Left.
protected java.util.function.Function<java.util.List<Term>,java.util.function.Function<Context,java.util.function.Function<Graph,Either<InContext<Error_>,Term>>>>	implementation()	A dynamic/interpreted implementation of the function.
Name	name()	The unique name of the primitive function.
TypeScheme	type()	The datatype of the primitive function.

Methods inherited from class hydra.tools.PrimitiveFunction

term, toNative

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

NAME

public static final Name NAME

Constructor Detail

IsLeft

public IsLeft()

Method Detail

name

public Name name()

Description copied from class: PrimitiveFunction

The unique name of the primitive function.

Specified by:

name in class PrimitiveFunction

Returns:

the name of this primitive function

type

public TypeScheme type()

Description copied from class: PrimitiveFunction

The datatype of the primitive function.

Specified by:

type in class PrimitiveFunction

Returns:

the type scheme of this primitive function

implementation

protected java.util.function.Function<java.util.List<Term>,java.util.function.Function<Context,java.util.function.Function<Graph,Either<InContext<Error_>,Term>>>> implementation()

Description copied from class: PrimitiveFunction

A dynamic/interpreted implementation of the function. Subclasses implement this with Either-based logic.

Specified by:

implementation in class PrimitiveFunction

Returns:

the function implementation

apply

public static <A,B> java.lang.Boolean apply(Either<A,B> either)

Check if an Either value is a Left.

Type Parameters:

A - the left type

B - the right type

Parameters:

either - the Either value to check

Returns:

true if the Either is a Left, false otherwise