Package org.antlr.runtime.tree

Class RewriteRuleTokenStream

java.lang.Object

org.antlr.runtime.tree.RewriteRuleElementStream

org.antlr.runtime.tree.RewriteRuleTokenStream

public class RewriteRuleTokenStream
extends RewriteRuleElementStream

Field Summary

Fields inherited from class org.antlr.runtime.tree.RewriteRuleElementStream

adaptor, cursor, dirty, elementDescription, elements, singleElement

Constructor Summary

Constructors

Constructor	Description
RewriteRuleTokenStream(TreeAdaptor adaptor, String elementDescription)
RewriteRuleTokenStream(TreeAdaptor adaptor, String elementDescription, Object oneElement)	Create a stream with one element
RewriteRuleTokenStream(TreeAdaptor adaptor, String elementDescription, List<Object> elements)	Create a stream, but feed off an existing list

Method Summary

Modifier and Type	Method	Description
protected Object	dup(Object el)	When constructing trees, sometimes we need to dup a token or AST subtree.
Object	nextNode()	Get next token from stream and make a node for it
Token	nextToken()
protected Object	toTree(Object el)	Don't convert to a tree unless they explicitly call nextTree.

Methods inherited from class org.antlr.runtime.tree.RewriteRuleElementStream

_next, add, getDescription, hasNext, nextTree, reset, size

Methods inherited from class java.lang.Object

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

Constructor Details

RewriteRuleTokenStream

public RewriteRuleTokenStream(TreeAdaptor adaptor,
 String elementDescription)

RewriteRuleTokenStream

public RewriteRuleTokenStream(TreeAdaptor adaptor,
 String elementDescription,
 Object oneElement)

Create a stream with one element

RewriteRuleTokenStream

public RewriteRuleTokenStream(TreeAdaptor adaptor,
 String elementDescription,
 List<Object> elements)

Create a stream, but feed off an existing list

Method Details

nextNode

public Object nextNode()

Get next token from stream and make a node for it

nextToken

public Token nextToken()

toTree

protected Object toTree(Object el)

Don't convert to a tree unless they explicitly call nextTree. This way we can do hetero tree nodes in rewrite.

Overrides:

toTree in class RewriteRuleElementStream

dup

protected Object dup(Object el)

Description copied from class: RewriteRuleElementStream

When constructing trees, sometimes we need to dup a token or AST subtree. Dup'ing a token means just creating another AST node around it. For trees, you must call the adaptor.dupTree() unless the element is for a tree root; then it must be a node dup.

Specified by:

dup in class RewriteRuleElementStream