Function unary

prqlc/prqlc-parser/src/parser/expr.rs:267–278

(expr: E)

}

fn unary<'a, I, E>(expr: E) -> impl Parser<'a, I, Expr, ParserError<'a>> + Clone + 'a
where
    I: Input<'a, Token = lr::Token, Span = Span> + BorrowInput<'a>,
    E: Parser<'a, I, Expr, ParserError<'a>> + Clone + 'a,
{
    expr.clone()
        .or(operator_unary()
            .then(expr.map(Box::new))
            .map(|(op, expr)| ExprKind::Unary(UnaryExpr { op, expr }))
            .map_with(|kind, extra| ExprKind::into_expr(kind, extra.span())))
        .boxed()
}

fn range<'a, I, E>(expr: E) -> impl Parser<'a, I, Expr, ParserError<'a>> + Clone + 'a
where