uk.ac.bbk.dcs.automed.qproc
Class Cell

java.lang.Object
  |
  +--uk.ac.bbk.dcs.automed.qproc.Cell

public class Cell

extends java.lang.Object

Every node in an ASG is a Cell, so one has to use this class in order to perform any operations on an ASG

Field Summary

static int	apply
static int	constant
static int	constructor
static int	function
static int	lambda
static int	scheme
static int	special
static int	sysvariable
static int	variable

Constructor Summary

Cell(int snum, java.lang.Object sdata)

Cell(int snum, java.lang.Object lRef, java.lang.Object rRef)

Cell(int snum, java.lang.Object lRef, java.lang.Object rRef, java.lang.Object sdata)

Cell(java.lang.Object lRef, java.lang.Object rRef)

Cell(java.lang.String sdata)

Method Summary

Cell	copyOfGraph() Returns an exact copy of the ASG
java.lang.Object	data() Returns the Object contained in the Cell
double	getDouble() Returns the value of the double contained in the Cell
boolean	isApply() Returns true if tag is apply
boolean	isConsConstructor() Returns true if tag is "Cons"
boolean	isConstant() Returns true if tag is constant
boolean	isConstructor() Returns true if tag is constructor
boolean	isFunction() Returns true if tag is function
boolean	isLambda() Returns true if tag is lambda
boolean	isNilConstructor() Returns true if tag is "Nil"
boolean	isNum() Returns true if the Cell contains a double
boolean	isScheme() Returns true if tag is scheme
boolean	isSpecial() Returns true if tag is special
boolean	isSysVariable() Returns true if tag is sysvariable
boolean	isVariable() Returns true if tag is variable
Cell	l() Returns a reference to the left child of the Cell
void	mimicThisCell(Cell n) Returns an exact copy of the input Cell
boolean	newScope()
Cell	r() Returns a reference to the right child of the Cell
boolean	representsComprehension() Returns true if the Cell is the root of an ASG representing a comprehension
boolean	representsGenerator() Returns true if the Cell is the root of an ASG representing a generator
boolean	representsList() Returns true if the Cell is the root of an ASG representing a list
boolean	representsPair() Returns true if tag is "Tuple2"
boolean	representsSingleton()
boolean	representsTuple() Returns true if the Cell is the root of an ASG representing a Tuple
void	set_l(Cell n) Sets the reference to the left child of the Cell to n
void	set_r(Cell n) Sets the reference to the left child of the Cell to n
void	setData(java.lang.Object newData) Sets the Cell's data
void	setNewScope()
Cell	singleton() Returns the root of an ASG representing an empty list
int	tag() Returns the Cell's tag
java.lang.String	text() Returns the string representation of the object contained in the Cell

Methods inherited from class java.lang.Object

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

Field Detail

apply

public static int apply

lambda

public static int lambda

constant

public static int constant

scheme

public static int scheme

constructor

public static int constructor

variable

public static int variable

function

public static int function

special

public static int special

sysvariable

public static int sysvariable

Constructor Detail

Cell

public Cell(int snum,
            java.lang.Object lRef,
            java.lang.Object rRef,
            java.lang.Object sdata)

Parameters:

snum - designates the type of the Cell. Possible values: apply, lambda, constant, identifier, scheme, constructor, variable, function, special, sysvariable

lRef - reference to the Cell's left child

rRef - reference to the Cell's right child

sdata - Object container, whose value depends on snum. Possible values: apply:null, lambda:lambda, constant:(integer, String, ...), scheme:(String), constructor:(String, for example Cons, Tuple2, ...), variable:(String, e.g. x, y, ...), function:(function name), special:Let, sysvariable:(wrapper object)

Cell

public Cell(int snum,
            java.lang.Object lRef,
            java.lang.Object rRef)

Cell

public Cell(int snum,
            java.lang.Object sdata)

Cell

public Cell(java.lang.Object lRef,
            java.lang.Object rRef)

Cell

public Cell(java.lang.String sdata)

Method Detail

text

public java.lang.String text()

Returns the string representation of the object contained in the Cell

data

public java.lang.Object data()

Returns the Object contained in the Cell

isNum

public boolean isNum()

Returns true if the Cell contains a double

getDouble

public double getDouble()

Returns the value of the double contained in the Cell

tag

public int tag()

Returns the Cell's tag

l

public Cell l()

Returns a reference to the left child of the Cell

r

public Cell r()

Returns a reference to the right child of the Cell

set_l

public void set_l(Cell n)

Sets the reference to the left child of the Cell to n

set_r

public void set_r(Cell n)

Sets the reference to the left child of the Cell to n

setData

public void setData(java.lang.Object newData)

Sets the Cell's data

mimicThisCell

public void mimicThisCell(Cell n)

Returns an exact copy of the input Cell

copyOfGraph

public Cell copyOfGraph()

Returns an exact copy of the ASG

singleton

public Cell singleton()

Returns the root of an ASG representing an empty list

isApply

public boolean isApply()

Returns true if tag is apply

isLambda

public boolean isLambda()

Returns true if tag is lambda

isConstant

public boolean isConstant()

Returns true if tag is constant

isScheme

public boolean isScheme()

Returns true if tag is scheme

isConstructor

public boolean isConstructor()

Returns true if tag is constructor

isVariable

public boolean isVariable()

Returns true if tag is variable

isSpecial

public boolean isSpecial()

Returns true if tag is special

isFunction

public boolean isFunction()

Returns true if tag is function

isSysVariable

public boolean isSysVariable()

Returns true if tag is sysvariable

isNilConstructor

public boolean isNilConstructor()

Returns true if tag is "Nil"

isConsConstructor

public boolean isConsConstructor()

Returns true if tag is "Cons"

representsComprehension

public boolean representsComprehension()

Returns true if the Cell is the root of an ASG representing a comprehension

representsGenerator

public boolean representsGenerator()

Returns true if the Cell is the root of an ASG representing a generator

representsPair

public boolean representsPair()

Returns true if tag is "Tuple2"

representsTuple

public boolean representsTuple()

Returns true if the Cell is the root of an ASG representing a Tuple

representsList

public boolean representsList()

Returns true if the Cell is the root of an ASG representing a list

representsSingleton

public boolean representsSingleton()

setNewScope

public void setNewScope()

newScope

public boolean newScope()