Package com.singularsys.extensions.lambda

Class Signature.ListSig

java.lang.Object

com.singularsys.extensions.lambda.Signature

com.singularsys.extensions.lambda.Signature.OuterSig

com.singularsys.extensions.lambda.Signature.ListSig

Enclosing class:

Signature

public static final class Signature.ListSig
extends Signature.OuterSig

A Signature representing a list of signatures

Nested Class Summary

Nested classes/interfaces inherited from class com.singularsys.extensions.lambda.Signature

Signature.InnerSig, Signature.ListSig, Signature.OuterSig, Signature.Pat, Signature.PVbl, Signature.Vbl

Constructor Summary

Constructors

Constructor	Description
ListSig()

Method Summary

Modifier and Type	Method	Description
void	add(Signature.InnerSig sig)	Add a signature to the list.
protected void	calculateArgs(Stack<Object> stack, List<Object> args)	Convert arguments on the stack to a list of arguments matching the pattern in this signature
List<Signature.InnerSig>	getSigs()	Return a list of signatures
boolean	isSimple()	Simple signatures like x or [x,y,z]
protected boolean	match(Object x)
protected boolean	match(Object x, Object y)
boolean	matchN(Object[] args)
int	size()	Number of element in a compound signature
String	toString()

Methods inherited from class com.singularsys.extensions.lambda.Signature

calcInnerSig, calcSig

Methods inherited from class java.lang.Object

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

Constructor Details

ListSig

public ListSig()

Method Details

add

public void add(Signature.InnerSig sig)

Add a signature to the list.

Parameters:

sig - signature to add

getSigs

public List<Signature.InnerSig> getSigs()

Description copied from class: Signature

Return a list of signatures

Specified by:

getSigs in class Signature

Returns:

either a list or an empty list

isSimple

public boolean isSimple()

Description copied from class: Signature

Simple signatures like x or [x,y,z]

Specified by:

isSimple in class Signature

Returns:

true if it is simple

size

public int size()

Description copied from class: Signature

Number of element in a compound signature

Specified by:

size in class Signature

Returns:

number of elements, 1 for variables

calculateArgs

protected void calculateArgs(Stack<Object> stack,
 List<Object> args)
                      throws EvaluationException

Description copied from class: Signature

Convert arguments on the stack to a list of arguments matching the pattern in this signature

Specified by:

calculateArgs in class Signature

Parameters:

stack - input arguments to the function

args - output list of values matching the variables in the signature

Throws:

EvaluationException - on error

toString

public String toString()

Overrides:

toString in class Object

match

protected boolean match(Object x)

Specified by:

match in class Signature

match

protected boolean match(Object x,
 Object y)

Specified by:

match in class Signature

matchN

public boolean matchN(Object[] args)

Specified by:

matchN in class Signature