org.codehaus.groovy.ast
[Java] Class ASTNode

java.lang.Object
  org.codehaus.groovy.ast.ASTNode

public class ASTNode
extends Object

Base class for any AST node. This class supports basic information used in all nodes of the AST

• line and column number information. Usually a node represents a certain area in a text file determined by a starting position and an ending position. For nodes that do not represent this, this information will be -1. A node can also be configured in its line/col information using another node through setSourcePosition(otherNode).
• every node can store meta data. A phase operation or transform can use this to transport arbitrary information to another phase operation or transform. The only requirement is that the other phase operation or transform runs after the part storing the information. If the information transport is done it is strongly recommended to remove that meta data.

Authors:

James Strachan

Version:

\$Revision\$

copyNodeMetaData

public void copyNodeMetaData(ASTNode other)

Copies all node meta data from one node to the other

Parameters:

other - - the other node

getColumnNumber

public int getColumnNumber()

getLastColumnNumber

public int getLastColumnNumber()

getLastLineNumber

public int getLastLineNumber()

getLineNumber

public int getLineNumber()

getNodeMetaData

public Object getNodeMetaData(Object key)

Gets the node meta data.

Parameters:

key - - the meta data key

Returns:

the node meta data value for this key

getText

public String getText()

putNodeMetaData

public Object putNodeMetaData(Object key, Object value)

Sets the node meta data but allows overwriting values.

throws:

GroovyBugError if key is null

Parameters:

key - - the meta data key

value - - the meta data value

Returns:

the old node meta data value for this key

removeNodeMetaData

public void removeNodeMetaData(Object key)

Removes a node meta data entry.

throws:

GroovyBugError if the key is null

Parameters:

key - - the meta data key

setColumnNumber

public void setColumnNumber(int columnNumber)

setLastColumnNumber

public void setLastColumnNumber(int lastColumnNumber)

setLastLineNumber

public void setLastLineNumber(int lastLineNumber)

setLineNumber

public void setLineNumber(int lineNumber)

setNodeMetaData

public void setNodeMetaData(Object key, Object value)

Sets the node meta data.

throws:

GroovyBugError if key is null or there is already meta data under that key

Parameters:

key - - the meta data key

value - - the meta data value

setSourcePosition

public void setSourcePosition(ASTNode node)

Sets the source position using another ASTNode. The sourcePosition consists of a line/column pair for the start and a line/column pair for the end of the expression or statement

Parameters:

node - - the node used to configure the position information

visit

public void visit(GroovyCodeVisitor visitor)

Copyright © 2003-2011 The Codehaus. All rights reserved.