Thomas Haller <thaller@xxxxxxxxxx> wrote:
> --- a/src/expression.c
> +++ b/src/expression.c
> @@ -321,6 +321,7 @@ static const struct expr_ops symbol_expr_ops = {
> .type = EXPR_SYMBOL,
> .name = "symbol",
> .print = symbol_expr_print,
> + .json = NULL, /* expr_print_json() must never be called. */
I'd suggest to add a json callback that BUG()s instead,
with a comment explaining that these do not exist anymore
after the initial eval stage. (symbols will be resolved
to numeric value for example).
