How do you figure? He's not using any reference types, and he's using a language that doesn't even have a GC. It's likely the Set<Path> will use heap allocati

How do you figure? He's not using any reference types, and he's using a language that doesn't even have a GC. It's likely the Set<Path> will use heap allocation internally (there isn't really a way around that), but it's only holding a small value type. Besides, this wasn't a streaming interface before this change, either. In the first version, all elements were held in an array already.