Function parse_literal_err

src/expr-parser/src/parser.rs:1068–1081

(input: ParseStream)

        Ok(MirScalarExpr::Literal(Ok(row), typ))
    }
    fn parse_literal_err(input: ParseStream) -> Result {
        input.parse::<kw::error>()?;
        let mut msg = {
            let content;
            syn::parenthesized!(content in input);
            content.parse::<syn::LitStr>()?.value()
        };
        let err = if msg.starts_with("internal error: ") {
            Ok(mz_expr::EvalError::Internal(msg.split_off(16).into()))
        } else {
            Err(Error::new(msg.span(), "expected `internal error: $msg`"))
        }?;
        Ok(MirScalarExpr::literal(Err(err), ReprScalarType::Bool))
    }

    fn parse_literal_array(input: ParseStream) -> Result {
        use mz_expr::func::variadic::ArrayCreate;