Method try_map_expr

datafusion/expr/src/expr.rs:754–767

(self, f: impl FnOnce(Expr) -> Result<Expr>)

    #[doc(hidden)]
    pub fn try_map_expr(self, f: impl FnOnce(Expr) -> Result<Expr>) -> Result<Expr> {
        let Alias {
            expr,
            relation,
            name,
            metadata,
        } = self;
        Ok(Expr::Alias(Alias {
            expr: Box::new(f(*expr)?),
            relation,
            name,
            metadata,
        }))
    }
}

/// Binary expression for [`Expr::BinaryExpr`]