Method optExpr

cel/src/parser/gen/celparser.rs:5584–5627

(&mut self)

    I: TokenStream<'input, TF = LocalTokenFactory<'input>> + TidAble<'input>,
{
    pub fn optExpr(&mut self) -> Result<Rc<OptExprContextAll<'input>>, ANTLRError> {
        let mut recog = self;
        let _parentctx = recog.ctx.take();
        let mut _localctx = OptExprContextExt::new(_parentctx.clone(), recog.base.get_state());
        recog.base.enter_rule(_localctx.clone(), 30, RULE_optExpr);
        let mut _localctx: Rc<OptExprContextAll> = _localctx;
        let mut _la: i32 = -1;
        let result: Result<(), ANTLRError> = (|| {
            //recog.base.enter_outer_alt(_localctx.clone(), 1)?;
            recog.base.enter_outer_alt(None, 1)?;
            {
                recog.base.set_state(238);
                recog.err_handler.sync(&mut recog.base)?;
                _la = recog.base.input.la(1);
                if _la == CEL_QUESTIONMARK {
                    {
                        recog.base.set_state(237);
                        let tmp = recog
                            .base
                            .match_token(CEL_QUESTIONMARK, &mut recog.err_handler)?;
                        cast_mut::<_, OptExprContext>(&mut _localctx).opt = Some(tmp.clone());
                    }
                }

                /*InvokeRule expr*/
                recog.base.set_state(240);
                let tmp = recog.expr()?;
                cast_mut::<_, OptExprContext>(&mut _localctx).e = Some(tmp.clone());
            }
            Ok(())
        })();
        match result {
            Ok(_) => {}
            Err(e @ ANTLRError::FallThrough(_)) => return Err(e),
            Err(ref re) => {
                //_localctx.exception = re;
                recog.err_handler.report_error(&mut recog.base, re);
                recog.err_handler.recover(&mut recog.base, re)?;
            }
        }
        recog.base.exit_rule()?;

        Ok(_localctx)
    }
}
//------------------- literal ----------------
#[derive(Debug)]