Package net.emustudio.edigen.nodes

Class Mask

java.lang.Object

net.emustudio.edigen.nodes.TreeNode

net.emustudio.edigen.nodes.Mask

public class Mask
extends TreeNode

Mask node - a sequence of bits used to filter another sequence during binary pattern matching.

Constructor Summary

Constructors

Constructor	Description
Mask(BitSequence bits)	Constructs the mask.

Method Summary

Modifier and Type	Method	Description
void	accept(Visitor visitor)	Accepts the visitor.
Mask	and(Mask other)	Returns a mask ANDed with an another mask.
boolean	equals(java.lang.Object o)
BitSequence	getBits()	Returns the bit sequence.
java.lang.Integer	getStart()	Returns the starting offset relative to the variant start.
int	hashCode()
void	setStart(int start)	Sets the starting offset relative to the variant start.
TreeNode	shallowCopy()
java.lang.String	toString()	Returns the mask as a string in binary notation.

Methods inherited from class net.emustudio.edigen.nodes.TreeNode

acceptChildren, addChild, addChildren, addChildren, childCount, copy, dump, getChild, getChildren, getLine, getParent, remove, setLine

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

Mask

public Mask(BitSequence bits)

Constructs the mask.

Parameters:

bits - the bit sequence

Method Detail

getBits

public BitSequence getBits()

Returns the bit sequence.

Returns:

the bit sequence

getStart

public java.lang.Integer getStart()

Returns the starting offset relative to the variant start. The result is null if it is not yet determined.

Returns:

the starting offset, in bits

setStart

public void setStart(int start)

Sets the starting offset relative to the variant start.

Parameters:

start - the starting offset, in bits

and

public Mask and(Mask other)

Returns a mask ANDed with an another mask.

Parameters:

other - the second mask

Returns:

the resulting mask

accept

public void accept(Visitor visitor)
            throws SemanticException

Accepts the visitor.

Overrides:

accept in class TreeNode

Parameters:

visitor - the visitor object

Throws:

SemanticException - depends on the specific visitor

toString

public java.lang.String toString()

Returns the mask as a string in binary notation.

Overrides:

toString in class java.lang.Object

Returns:

the string

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class TreeNode

shallowCopy

public TreeNode shallowCopy()

Specified by:

shallowCopy in class TreeNode