Doesn't store anything, but records what things it should have stored. This doesn't currently have any use except for testing and debugging.
@private
# File lib/sass/cache_stores/null.rb, line 8 def initialize @keys = {} end
# File lib/sass/cache_stores/null.rb, line 12 def _retrieve(key, version, sha) nil end
# File lib/sass/cache_stores/null.rb, line 16 def _store(key, version, sha, contents) @keys[key] = true end
# File lib/sass/cache_stores/null.rb, line 20 def was_set?(key) @keys[key] end