PsyNull (Psylla 0.12.0)

java.lang.Object
- coneforest.psylla.core.PsyNull

All Implemented Interfaces:

PsyAtomic, PsyConvertableToName, PsyConvertableToString, PsyObject
```
public final class PsyNull
extends Object
implements PsyAtomic
```
A representation of Ψ-null, a type of a void placeholder. There is the only instance of this class, NULL.

Field Summary

Fields
Modifier and Type Field Description

static PsyNull NULL
The sole Ψ-null object.
- Fields inherited from interface coneforest.psylla.core.PsyObject
  OPERATORS

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`PsyBoolean`	`psyEq(PsyObject o)`	Returns a Ψ-`boolean` indicating whether some other Ψ-object is “equal to” this one.
`String`	`toSyntaxString()`

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface coneforest.psylla.core.PsyObject
convert, execute, invoke, psyClone, psyHashCode, psyInstanceOf, psyNe, psySyntax, psyToName, psyToString, psyType, typeName

- Field Detail
  - NULL
```
public static final PsyNull NULL
```
    The sole Ψ-null object.
- Method Detail
  - toSyntaxString
```
public String toSyntaxString()
```
    Specified by:
    
    toSyntaxString in interface PsyObject
    
    Returns:
    
    a string "null".
  - psyEq
```
public PsyBoolean psyEq(PsyObject o)
```
    Returns a Ψ-boolean indicating whether some other Ψ-object is “equal to” this one. Return value is true if and only if other object has name type.
    
    Specified by:
    
    psyEq in interface PsyObject
    
    Returns:
    
    a result.