Code, Strings, and Keys

Extending Immediate Types and Source Locations in Ruby

Overridding singleton classes of instances In Ruby, most types allow you to open up their singleton classes to override instance methods: Immediate values Some objects are implemented as immediate values in Ruby, and cannot be implemented have singleton methods defined on them directly: Fixnum, true, nil, and false are implemented as immediate values. With immediate values, variables hold the…

December 2, 2024
Conditional gems in ruby without breaking Gemfile.lock

Do you want ruby/bundler to skip a gem install on a certain platform, but any other platform needs that gem? The obvious answer would be the following, which would result in also clobbering your Gemfile.lock if bundling on macOS: gem “openssl”, “= 3.2.0” if RUBY_PLATFORM !~ /darwin/ But bundler has its own method, install_if , to accomplish such a…

July 31, 2024
Handling keyword arguments in method_missing in Ruby

If you implement a method_missing method to receive methods that receive keyword arguments and you only receive and forward (to send) the method name, *args, and &block, you will receive ArgumentError: wrong number of arguments (given 3, expected 2) when the arguments are forwarded. This is because the keyword arguments will revert to the backward-compatible…

April 4, 2024