Method getAncestor

src/org/antlr/codebuff/Trainer.java:502–510

(ParserRuleContext node, int delta)

	}

	public static ParserRuleContext getAncestor(ParserRuleContext node, int delta) {
		int n = 0;
		ParserRuleContext p = node;
		while ( p!=null && n!=delta ) {
			n++;
			p = p.getParent();
		}
		return p;
	}

	public int[] getFeatures(int i)	{
		CodeBuffTokenStream tokens = doc.tokens;