antlr.TreeElement Maven / Gradle / Ivy
package antlr;
/* ANTLR Translator Generator
* Project led by Terence Parr at http://www.cs.usfca.edu
* Software rights: http://www.antlr.org/license.html
*
* $Id: //depot/code/org.antlr/release/antlr-2.7.7/antlr/TreeElement.java#2 $
*/
/** A TreeElement is a block with one alternative and a root node */
class TreeElement extends AlternativeBlock {
GrammarAtom root;
public TreeElement(Grammar g, Token start) {
super(g, start, false);
}
public void generate() {
grammar.generator.gen(this);
}
public Lookahead look(int k) {
return grammar.theLLkAnalyzer.look(k, this);
}
public String toString() {
String s = " #(" + root;
Alternative a = (Alternative)alternatives.elementAt(0);
AlternativeElement p = a.head;
while (p != null) {
s += p;
p = p.next;
}
return s + " )";
}
}