pub fn try_visit_pre<F, E>(&self, f: &mut F) -> Result<(), E>
    where
        F: FnMut(&MirRelationExpr) -> Result<(), E>,
        E: From<RecursionLimitError>,
    {
        MirRelationExprVisitor::new().try_visit_pre(self, f)
    }
/// Pre-order immutable fallible `MirRelationExpr` visitor.
Pre-order immutable fallible `MirRelationExpr` visitor.
Pre - order immutable fallible ` MirRelationExpr ` visitor .
pub fn try_visit_pre<F, E>(&self, f: &mut F) -> Result<(), E>
    where
        F: FnMut(&MirRelationExpr) -> Result<(), E>,
        E: From<RecursionLimitError>,
    {
        MirRelationExprVisitor::new().try_visit_pre(self, f)
    }
pub fn try_visit_pre < F , E > ( & self , f : & mut F ) -> Result < ( ) , E > where F : FnMut ( & MirRelationExpr ) -> Result < ( ) , E > , E : From < RecursionLimitError > , { MirRelationExprVisitor :: new ( ) . try_visit_pre ( self , f ) }
Pre-order immutable fallible `MirRelationExpr` visitor.
Pre - order immutable fallible ` MirRelationExpr ` visitor .
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