Performance fixes - Githubissues

jperville commented 9 years ago

This PR contains several small performance fixes for json-ld.

The optimizations consist in:

applying recommendation of 'fasterer' gem (here Hash#each_key faster than Hash#keys.each)
removal of unused code in JSON::LD::Utils#debug that was executed even when debug is not on
refactoring expensive Array intersection in JSON::LD::Utils.node? for several Hash#has_key? calls
reduce allocation of Hashes by using Hash#merge! instead of Hash#merge when appropriate and safe

The specs still pass after all these changes.

jperville commented 9 years ago

This PR is the companion of ruby-rdf/rdf#213.

gkellogg commented 9 years ago

Cool, thanks.

ruby-rdf / json-ld