/**
* Always called by generated parsers upon entry to a rule. Access field {@link #_ctx} get the
* current context.
*/
public void enterRule(ParserRuleContext localctx, int state, int ruleIndex) {
setState(state);
_ctx = localctx;
_ctx.start = _input.LT(1);
if (_buildParseTrees) addContextToParseTree();
if (_parseListeners != null) triggerEnterRuleEvent();
}
public void enterRecursionRule(
ParserRuleContext localctx, int state, int ruleIndex, int precedence) {
setState(state);
_precedenceStack.push(precedence);
_ctx = localctx;
_ctx.start = _input.LT(1);
if (_parseListeners != null) {
triggerEnterRuleEvent(); // simulates rule entry for left-recursive rules
}
}
/**
* Like {@link #enterRule} but for recursive rules. Make the current context the child of the
* incoming localctx.
*/
public void pushNewRecursionContext(ParserRuleContext localctx, int state, int ruleIndex) {
ParserRuleContext previous = _ctx;
previous.parent = localctx;
previous.invokingState = state;
previous.stop = _input.LT(-1);
_ctx = localctx;
_ctx.start = previous.start;
if (_buildParseTrees) {
_ctx.addChild(previous);
}
if (_parseListeners != null) {
triggerEnterRuleEvent(); // simulates rule entry for left-recursive rules
}
}
