Package EDU.purdue.jtb.parser.syntaxtree
Class NodeListOptional
- java.lang.Object
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- EDU.purdue.jtb.parser.syntaxtree.NodeListOptional
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public class NodeListOptional extends java.lang.Object implements INodeList
Represents an optional grammar list (*), e.g. ' ( A )* '.
The class stores the nodes list in an ArrayList.- See Also:
- Serialized Form
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Constructor Summary
Constructors Constructor Description NodeListOptional()
Initializes an empty list of nodes with a default first allocation.NodeListOptional(int sz)
Initializes an empty list of nodes with a given allocation.NodeListOptional(int sz, INode firstNode)
Initializes an empty list of nodes with a given allocation and adds a first node.NodeListOptional(INode firstNode)
Initializes an empty list of nodes with a default first allocation and adds a first node.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description int
accept(IIntVisitor vis)
Accepts aIIntVisitor
visitor with user return data.void
accept(IVoidVisitor vis)
Accepts aIVoidVisitor
visitor} visitor with user return data.void
addNode(INode n)
Adds a node to the list of nodes, managing progressive allocation increments.INode
elementAt(int i)
Gets the node in the list at a given position.java.util.Iterator<INode>
elements()
Returns an iterator on the nodes list.boolean
present()
int
size()
Returns the number of nodes in the list.
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Field Detail
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nodes
public java.util.ArrayList<INode> nodes
The list of nodes
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Constructor Detail
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NodeListOptional
public NodeListOptional()
Initializes an empty list of nodes with a default first allocation.
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NodeListOptional
public NodeListOptional(int sz)
Initializes an empty list of nodes with a given allocation.- Parameters:
sz
- - the list size
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NodeListOptional
public NodeListOptional(INode firstNode)
Initializes an empty list of nodes with a default first allocation and adds a first node.- Parameters:
firstNode
- - the node to add
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NodeListOptional
public NodeListOptional(int sz, INode firstNode)
Initializes an empty list of nodes with a given allocation and adds a first node.- Parameters:
sz
- - the list sizefirstNode
- - the node to add
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Method Detail
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addNode
public void addNode(INode n)
Adds a node to the list of nodes, managing progressive allocation increments.
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elementAt
public INode elementAt(int i)
Gets the node in the list at a given position.
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elements
public java.util.Iterator<INode> elements()
Returns an iterator on the nodes list.
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size
public int size()
Returns the number of nodes in the list.
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present
public boolean present()
- Returns:
- true if there is at least one node, false otherwise
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accept
public int accept(IIntVisitor vis)
Accepts aIIntVisitor
visitor with user return data.
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accept
public void accept(IVoidVisitor vis)
Accepts aIVoidVisitor
visitor} visitor with user return data.
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