private ShiftExprContext shiftExpr(int _p) { ParserRuleContext _parentctx = _ctx; int _parentState = State; ShiftExprContext _localctx = new ShiftExprContext(_ctx, _parentState); ShiftExprContext _prevctx = _localctx; int _startState = 18; EnterRecursionRule(_localctx, 18, RULE_shiftExpr, _p); try { int _alt; EnterOuterAlt(_localctx, 1); { { State = 167; _localctx._addExpr = addExpr(0); _localctx.retValue = _localctx._addExpr.retValue; } _ctx.stop = _input.Lt(-1); State = 182; _errHandler.Sync(this); _alt = Interpreter.AdaptivePredict(_input,11,_ctx); while ( _alt!=2 && _alt!=global::Antlr4.Runtime.Atn.ATN.InvalidAltNumber ) { if ( _alt==1 ) { if ( _parseListeners!=null ) TriggerExitRuleEvent(); _prevctx = _localctx; { State = 180; switch ( Interpreter.AdaptivePredict(_input,10,_ctx) ) { case 1: { _localctx = new ShiftExprContext(_parentctx, _parentState); _localctx.first = _prevctx; PushNewRecursionContext(_localctx, _startState, RULE_shiftExpr); State = 170; if (!(Precpred(_ctx, 3))) throw new FailedPredicateException(this, "Precpred(_ctx, 3)"); State = 171; Match(T__25); State = 172; _localctx._addExpr = addExpr(0); _localctx.retValue = new BinaryExpression(BinaryExpressionType.LeftShift, _localctx.first.retValue, _localctx._addExpr.retValue); } break; case 2: { _localctx = new ShiftExprContext(_parentctx, _parentState); _localctx.first = _prevctx; PushNewRecursionContext(_localctx, _startState, RULE_shiftExpr); State = 175; if (!(Precpred(_ctx, 2))) throw new FailedPredicateException(this, "Precpred(_ctx, 2)"); State = 176; Match(T__26); State = 177; _localctx._addExpr = addExpr(0); _localctx.retValue = new BinaryExpression(BinaryExpressionType.RightShift, _localctx.first.retValue, _localctx._addExpr.retValue); } break; } } } State = 184; _errHandler.Sync(this); _alt = Interpreter.AdaptivePredict(_input,11,_ctx); } } } catch (RecognitionException re) { _localctx.exception = re; _errHandler.ReportError(this, re); _errHandler.Recover(this, re); } finally { UnrollRecursionContexts(_parentctx); } return _localctx; }
private bool shiftExpr_sempred(ShiftExprContext _localctx, int predIndex) { switch (predIndex) { case 11: return Precpred(_ctx, 3); case 12: return Precpred(_ctx, 2); } return true; }