56 lines
1.8 KiB
Ruby
56 lines
1.8 KiB
Ruby
# frozen_string_literal: true
|
|
|
|
class Pry
|
|
class Command
|
|
class Ls < Pry::ClassCommand
|
|
module JRubyHacks
|
|
private
|
|
|
|
# JRuby creates lots of aliases for methods imported from java in an attempt
|
|
# to make life easier for ruby programmers. (e.g. getFooBar becomes
|
|
# get_foo_bar and foo_bar, and maybe foo_bar? if it returns a Boolean). The
|
|
# full transformations are in the assignAliases method of:
|
|
# https://github.com/jruby/jruby/blob/master/src/org/jruby/javasupport/JavaClass.java
|
|
#
|
|
# This has the unfortunate side-effect of making the output of ls even more
|
|
# incredibly verbose than it normally would be for these objects; and so we
|
|
# filter out all but the nicest of these aliases here.
|
|
#
|
|
# TODO: This is a little bit vague, better heuristics could be used.
|
|
# JRuby also has a lot of scala-specific logic, which we don't copy.
|
|
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
|
|
|
|
# When removing jruby aliases, we want to keep the alias that is
|
|
# "least rubbish" according to this metric.
|
|
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
|
|
end
|
|
end
|
|
end
|
|
end
|