diff --git a/rfcs/len-metamethod-rawlen.md b/rfcs/len-metamethod-rawlen.md index 126251f4..45284b71 100644 --- a/rfcs/len-metamethod-rawlen.md +++ b/rfcs/len-metamethod-rawlen.md @@ -35,7 +35,8 @@ and even when it is, using the existing metamethod-absence-caching approach we u statistically significant difference on existing benchmark suite. This does complicate the `#` computation a little more which may affect JIT as well, but even if the table doesn't have a metatable the process of computing `#` involves a series of condition checks and as such will likely require slow paths anyway. -This is technically changing semantics of `#` when called on tables with an existing `__len` metamethod, and as such has a potential to change behavior of an existing valid program. That said, it's unlikely that any table would have a metatable with `__len` metamethod as outside of userdata these do not do anything. +This is technically changing semantics of `#` when called on tables with an existing `__len` metamethod, and as such has a potential to change behavior of an existing valid program. +That said, it's unlikely that any table would have a metatable with `__len` metamethod as outside of userdata it would not anything, and this drawback is not feasible to resolve with any alternate version of the proposal. ## Alternatives