public final ASTNode visitBooleanPrimary()

in parser/sql/dialect/presto/src/main/java/org/apache/shardingsphere/sql/parser/presto/visitor/statement/PrestoStatementVisitor.java [300:343]
43 lines of code
11 McCabe index (conditional complexity)

    public final ASTNode visitBooleanPrimary(final BooleanPrimaryContext ctx) {
        if (null != ctx.IS()) {
            // TODO optimize operatorToken
            String rightText = "";
            if (null != ctx.NOT()) {
                rightText = rightText.concat(ctx.start.getInputStream().getText(new Interval(ctx.NOT().getSymbol().getStartIndex(),
                        ctx.NOT().getSymbol().getStopIndex()))).concat(" ");
            }
            Token operatorToken = null;
            if (null != ctx.NULL()) {
                operatorToken = ctx.NULL().getSymbol();
            }
            if (null != ctx.TRUE()) {
                operatorToken = ctx.TRUE().getSymbol();
            }
            if (null != ctx.FALSE()) {
                operatorToken = ctx.FALSE().getSymbol();
            }
            int startIndex = null == operatorToken ? ctx.IS().getSymbol().getStopIndex() + 2 : operatorToken.getStartIndex();
            rightText = rightText.concat(ctx.start.getInputStream().getText(new Interval(startIndex, ctx.stop.getStopIndex())));
            ExpressionSegment right = new LiteralExpressionSegment(ctx.IS().getSymbol().getStopIndex() + 2, ctx.stop.getStopIndex(), rightText);
            String text = ctx.start.getInputStream().getText(new Interval(ctx.start.getStartIndex(), ctx.stop.getStopIndex()));
            ExpressionSegment left = (ExpressionSegment) visit(ctx.booleanPrimary());
            String operator = "IS";
            return new BinaryOperationExpression(ctx.start.getStartIndex(), ctx.stop.getStopIndex(), left, right, operator, text);
        }
        if (null != ctx.comparisonOperator() || null != ctx.SAFE_EQ_()) {
            return createCompareSegment(ctx);
        }
        if (null != ctx.MEMBER()) {
            int startIndex = ctx.MEMBER().getSymbol().getStopIndex() + 5;
            int endIndex = ctx.stop.getStopIndex() - 1;
            String rightText = ctx.start.getInputStream().getText(new Interval(startIndex, endIndex));
            ExpressionSegment right = new ExpressionProjectionSegment(startIndex, endIndex, rightText);
            String text = ctx.start.getInputStream().getText(new Interval(ctx.start.getStartIndex(), ctx.stop.getStopIndex()));
            ExpressionSegment left = (ExpressionSegment) visit(ctx.booleanPrimary());
            String operator = "MEMBER OF";
            return new BinaryOperationExpression(ctx.start.getStartIndex(), ctx.stop.getStopIndex(), left, right, operator, text);
        }
        if (null != ctx.assignmentOperator()) {
            return createAssignmentSegment(ctx);
        }
        return visit(ctx.predicate());
    }