pub fn visit_pre<F>(&self, f: &mut F)
    where
        F: FnMut(&MirRelationExpr),
    {
        MirRelationExprVisitor::new().visit_pre(self, f)
    }
/// Pre-order immutable infallible `MirRelationExpr` visitor.
Pre-order immutable infallible `MirRelationExpr` visitor.
Pre - order immutable infallible ` MirRelationExpr ` visitor .
pub fn visit_pre<F>(&self, f: &mut F)
    where
        F: FnMut(&MirRelationExpr),
    {
        MirRelationExprVisitor::new().visit_pre(self, f)
    }
pub fn visit_pre < F > ( & self , f : & mut F ) where F : FnMut ( & MirRelationExpr ) , { MirRelationExprVisitor :: new ( ) . visit_pre ( self , f ) }
Pre-order immutable infallible `MirRelationExpr` visitor.
Pre - order immutable infallible ` MirRelationExpr ` visitor .
&self
f
&mut F
&self
f
&mut F