module Pry::Command::Ls::JRubyHacks

"least rubbish" according to this metric.
When removing jruby aliases, we want to keep the alias that is

def rubbishness(name)
  name.each_char.map do |x|
    case x
    when /[A-Z]/
      1
    when '?', '=', '!'
      -2
    else
      0
    end
  end.inject(&:+) + (name.size / 100.0)
end

JRuby also has a lot of scala-specific logic, which we don't copy.
TODO: This is a little bit vague, better heuristics could be used.

filter out all but the nicest of these aliases here.
incredibly verbose than it normally would be for these objects; and so we
This has the unfortunate side-effect of making the output of ls even more

https://github.com/jruby/jruby/blob/master/src/org/jruby/javasupport/JavaClass.java
full transformations are in the assignAliases method of:
get_foo_bar and foo_bar, and maybe foo_bar? if it returns a Boolean). The
to make life easier for ruby programmers. (e.g. getFooBar becomes
JRuby creates lots of aliases for methods imported from java in an attempt

def trim_jruby_aliases(methods)
  grouped = methods.group_by do |m|
    m.name.sub(/\A(is|get|set)(?=[A-Z_])/, '').gsub(/[_?=]/, '').downcase
  end
  grouped.flat_map do |_key, values|
    values = values.sort_by do |m|
      rubbishness(m.name)
    end
    found = []
    values.select do |x|
      (found.none? { |y| x == y }) && found << x
    end
  end
end