https://github.com/ruby/erb/commit/9152ce8db4
(https://github.com/ruby/erb/pull/49) I was surprised to see erb show up when I was using memory_profiler on my app. ERB::Compiler#compile has a blank string literal, and it ended up allocating some 41532 blank strings for a relatively small surface area. https://github.com/ruby/erb/commit/b7e45c2bdc
(https://github.com/ruby/erb/pull/36) https://github.com/ruby/erb/commit/f74833cc07