net.fortytwo.ripple.cli.ast

Class ListAST

java.lang.Object

net.fortytwo.ripple.ListNode<AST>

net.fortytwo.ripple.cli.ast.ListAST

All Implemented Interfaces:

AST<RippleList>

Direct Known Subclasses:

LambdaAST, TemplateAST

public class ListAST
extends ListNode<AST>
implements AST<RippleList>

Field Summary

Fields

Modifier and Type	Field and Description
protected AST	first
protected ListAST	rest

Constructor Summary

Constructors

Constructor and Description
ListAST() Constructs a nil list AST.
ListAST(AST first, ListAST rest) Constructs a list AST with the given first element and rest.

Method Summary

Methods

Modifier and Type	Method and Description
void	evaluate(Sink<RippleList> sink, QueryEngine qe, ModelConnection mc)
AST	getFirst()
ListAST	getRest()
ListAST	invert()
boolean	isNil()
ListAST	push(AST a)
String	toString()

Methods inherited from class net.fortytwo.ripple.ListNode

equals

Methods inherited from class java.lang.Object

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

Field Detail

first

protected AST first

rest

protected ListAST rest

Constructor Detail

ListAST

public ListAST()

Constructs a nil list AST.

ListAST

public ListAST(AST first,
       ListAST rest)

Constructs a list AST with the given first element and rest.

Method Detail

getFirst

public AST getFirst()

Specified by:

getFirst in class ListNode<AST>

Returns:

the value at the head of the list, or null if this is a nil list

getRest

public ListAST getRest()

Specified by:

getRest in class ListNode<AST>

Returns:

the rest of the list, or null if this is a nil list

push

public ListAST push(AST a)

invert

public ListAST invert()

isNil

public boolean isNil()

Specified by:

isNil in class ListNode<AST>

Returns:

whether this is a nil list node, being the terminator of any number of lists

evaluate

public void evaluate(Sink<RippleList> sink,
            QueryEngine qe,
            ModelConnection mc)
              throws RippleException

Specified by:

evaluate in interface AST<RippleList>

Throws:

RippleException

toString

public String toString()

Overrides:

toString in class ListNode<AST>