On Mon, Mar 25, 2024 at 4:02 PM Andrew Dunstan <andrew@dunslane.net> wrote: > Well, what's the alternative? The current parser doesn't check stack depth in frontend code. Presumably it too will eventually just run out of memory, possibly rather sooner as the stack frames could be more expensive than the incremental parser stack extensions.
Stack size should be pretty limited, at least on the platforms I'm familiar with. So yeah, the recursive descent will segfault pretty quickly, but it won't repalloc() an unbounded amount of heap space. The alternative would just be to go back to a hardcoded limit in the short term, I think.
OK, so we invent a new error code and have the parser return that if the stack depth gets too big?