Package org.extendj.neobeaver.ast

Class ASTNode<T extends ASTNode>

java.lang.Object

org.extendj.neobeaver.ast.ASTNode<T>

All Implemented Interfaces:

java.lang.Cloneable, Parser.Symbol

Direct Known Subclasses:

ActionName, GAction, GComponent, GDecl, GGrammar, GPrecedence, GRule, GSym, List, Opt, Type

public class ASTNode<T extends ASTNode>
extends java.lang.Object
implements java.lang.Cloneable, Parser.Symbol

Field Summary

Fields

Modifier and Type	Field	Description
protected ASTNode[]	children
static boolean	generatedWithCacheCycle
protected int	numChildren
protected ASTNode	parent

Constructor Summary

Constructors

Constructor	Description
ASTNode()

Method Summary

Modifier and Type	Method	Description
void	accept(GVisitor vis)
void	addChild(T node)
java.util.Iterator<T>	astChildIterator()
java.lang.Iterable<T>	astChildren()
ASTNode<T>	clone()
ASTNode<T>	copy()
void	doFullTraversal()	Performs a full traversal of the tree using getChild to trigger rewrites
void	flushAttrAndCollectionCache()
void	flushAttrCache()
void	flushCache()
void	flushCollectionCache()
void	flushTreeCache()
ASTNode<T>	fullCopy()	Deprecated. Please use treeCopy or treeCopyNoTransform instead
T	getChild(int i)
T	getChildNoTransform(int i)	Gets a child without triggering rewrites.
int	getIndexOfChild(ASTNode node)
int	getNumChild()
int	getNumChildNoTransform()	Behaves like getNumChild, but does not invoke AST transformations (rewrites).
ASTNode	getParent()
Parser.SourcePosition	getPosition()
void	init$Children()	Initializes the child array to the correct size.
void	insertChild(ASTNode node, int i)
protected boolean	is$Equal(ASTNode node)
protected boolean	is$Equal(ASTNode n1, ASTNode n2)
protected int	numChildren()
void	removeChild(int i)
static ASTState	resetState()
ASTNode	rewrittenNode()
void	setChild(ASTNode node, int i)
void	setParent(ASTNode node)
ASTNode	setPosition(Parser.Symbol sym)
ASTState	state()
ASTNode<T>	treeCopy()	Create a deep copy of the AST subtree at this node.
ASTNode<T>	treeCopyNoTransform()	Create a deep copy of the AST subtree at this node.

Methods inherited from class java.lang.Object

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

Field Detail

generatedWithCacheCycle

public static final boolean generatedWithCacheCycle

See Also:

Constant Field Values

parent

protected ASTNode parent

children

protected ASTNode[] children

numChildren

protected int numChildren

Constructor Detail

ASTNode

public ASTNode()

Method Detail

setPosition

public ASTNode setPosition(Parser.Symbol sym)

getPosition

public Parser.SourcePosition getPosition()

Specified by:

getPosition in interface Parser.Symbol

accept

public void accept(GVisitor vis)

init$Children

public void init$Children()

Initializes the child array to the correct size. Initializes List and Opt nta children.

getIndexOfChild

public int getIndexOfChild(ASTNode node)

state

public final ASTState state()

resetState

public static final ASTState resetState()

astChildIterator

public java.util.Iterator<T> astChildIterator()

Returns:

an iterator that can be used to iterate over the children of this node. The iterator does not allow removing children.

astChildren

public java.lang.Iterable<T> astChildren()

Returns:

an object that can be used to iterate over the children of this node

getChild

public T getChild(int i)

addChild

public void addChild(T node)

getChildNoTransform

public T getChildNoTransform(int i)

Gets a child without triggering rewrites.

numChildren

protected int numChildren()

getNumChild

public int getNumChild()

getNumChildNoTransform

public final int getNumChildNoTransform()

Behaves like getNumChild, but does not invoke AST transformations (rewrites).

setChild

public void setChild(ASTNode node,
                     int i)

insertChild

public void insertChild(ASTNode node,
                        int i)

removeChild

public void removeChild(int i)

getParent

public ASTNode getParent()

setParent

public void setParent(ASTNode node)

flushTreeCache

public void flushTreeCache()

flushCache

public void flushCache()

flushAttrAndCollectionCache

public void flushAttrAndCollectionCache()

flushAttrCache

public void flushAttrCache()

flushCollectionCache

public void flushCollectionCache()

clone

public ASTNode<T> clone()
                 throws java.lang.CloneNotSupportedException

Overrides:

clone in class java.lang.Object

Throws:

java.lang.CloneNotSupportedException

copy

public ASTNode<T> copy()

fullCopy

@Deprecated
public ASTNode<T> fullCopy()

Deprecated.

Please use treeCopy or treeCopyNoTransform instead

Create a deep copy of the AST subtree at this node. The copy is dangling, i.e. has no parent.

Returns:

dangling copy of the subtree at this node

treeCopyNoTransform

public ASTNode<T> treeCopyNoTransform()

Create a deep copy of the AST subtree at this node. The copy is dangling, i.e. has no parent.

Returns:

dangling copy of the subtree at this node

treeCopy

public ASTNode<T> treeCopy()

Create a deep copy of the AST subtree at this node. The subtree of this node is traversed to trigger rewrites before copy. The copy is dangling, i.e. has no parent.

Returns:

dangling copy of the subtree at this node

doFullTraversal

public void doFullTraversal()

Performs a full traversal of the tree using getChild to trigger rewrites

is$Equal

protected boolean is$Equal(ASTNode n1,
                           ASTNode n2)

is$Equal

protected boolean is$Equal(ASTNode node)

rewrittenNode

public ASTNode rewrittenNode()