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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9041]
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parrt 2011-09-04 13:49:40 -08:00
parent 32a375bbf7
commit 5c35165873
1 changed files with 3 additions and 2 deletions
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5
runtime/Java/src/org/antlr/v4/runtime/tree/SyntaxTree.java
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@ -32,12 +32,13 @@ package org.antlr.v4.runtime.tree;
import org.antlr.v4.runtime.misc.Interval;
/** A tree that knows about an interval in a token stream
* is some kind of syntax tree.
* is some kind of syntax tree. Subinterfaces distinguish
* between parse trees and ASTs.
*/
public interface SyntaxTree extends Tree {
/** Return an interval indicating the index in the TokenStream of
* the 1st and last token associated with this subtree. If this
* note choose to use a leaf, then the interval represents a single token.
* node is a leaf, then the interval represents a single token.
*
* If source interval is unknown, this does not return null.
* It returns an interval of length 0.