org.antlr.v4.runtime.tree

Class ParseTreeProperty<V>

java.lang.Object

org.antlr.v4.runtime.tree.ParseTreeProperty<V>

public class ParseTreeProperty<V>
extends java.lang.Object

Associate a property with a parse tree node. Useful with parse tree listeners that need to associate values with particular tree nodes, kind of like specifying a return value for the listener event method that visited a particular node. Example:

 ParseTreeProperty<Integer> values = new ParseTreeProperty<Integer>();
 values.put(tree, 36);
 int x = values.get(tree);
 values.removeFrom(tree);
 

You would make one decl (values here) in the listener and use lots of times in your event methods.

Field Summary

Fields

Modifier and Type	Field and Description
protected java.util.Map<ParseTree,V>	annotations

Constructor Summary

Constructors

Constructor and Description
ParseTreeProperty()

Method Summary

Methods

Modifier and Type	Method and Description
V	get(ParseTree node)
void	put(ParseTree node, V value)
V	removeFrom(ParseTree node)

Methods inherited from class java.lang.Object

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

Field Detail

annotations

protected java.util.Map<ParseTree,V> annotations

Constructor Detail

ParseTreeProperty

public ParseTreeProperty()

Method Detail

get

public V get(ParseTree node)

put

public void put(ParseTree node,
       V value)

removeFrom

public V removeFrom(ParseTree node)