289         if !self.next_operator_can_begin_expr || self.next_operator == Precedence::Range {  in leftmost_subexpression_precedence()
362             Precedence::Range | Precedence::Or | Precedence::And => true,  in rightmost_subexpression_precedence()
397                         | Expr::Range(ExprRange { end: None, .. })  in parenthesize()
431                 Expr::Range(e) if e.start.is_none() => return Precedence::Prefix,  in precedence()
489         Expr::Range(e) => e.start.is_none() || fixup.previous_operator < Precedence::Assign,  in scan_left()
617         Expr::Range(e) if e.attrs.is_empty() => match &e.end {  in scan_right()
623                     fixup.rightmost_subexpression_fixup(false, true, Precedence::Range);  in scan_right()
627                     Precedence::Range,  in scan_right()
630                         Precedence::Assign | Precedence::Range => 0,  in scan_right()
636                     (Scan::Bailout, Precedence::Assign | Precedence::Range) => false,  in scan_right()
641                 if right_fixup.rightmost_subexpression_precedence(end) <= Precedence::Range {  in scan_right()
759         | Expr::Range(_)  in scan_right()
768             Precedence::Assign | Precedence::Range if precedence == Precedence::Range => Scan::Fail,  in scan_right()