/**
* The discovery of a rule node, involves sending two events: the generic {@link
* ParseTreeListener#enterEveryRule} and a {@link RuleContext}-specific event. First we trigger
* the generic and then the rule specific. We to them in reverse order upon finishing the node.
*/
protected void enterRule(ParseTreeListener listener, RuleNode r) {
GlobalInfo info = GlobalInfo.getInstance();
info.enterRuleSetup();
ParserRuleContext ctx = (ParserRuleContext) r.getRuleContext();
listener.enterEveryRule(ctx);
ctx.enterRule(listener);
}
/**
* Notify any parse listeners of an enter rule event.
*
* @see #addParseListener
*/
protected void triggerEnterRuleEvent() {
for (ParseTreeListener listener : _parseListeners) {
listener.enterEveryRule(_ctx);
_ctx.enterRule(listener);
}
}