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ruby--ruby/lib/rubygems/resolver/composed_set.rb
drbrain 5307d803f5 * lib/rubygems: Update to RubyGems master 50a8210. Important changes
in this commit:

  RubyGems now automatically checks for gem.deps.rb or Gemfile when
  running ruby executables.  This behavior is similar to `bundle exec
  rake`.  This change may be reverted before Ruby 2.1.0 if too many bugs
  are found.

* test/rubygems:  ditto.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43767 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-11-21 23:27:30 +00:00

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Ruby

##
# A ComposedSet allows multiple sets to be queried like a single set.
#
# To create a composed set with any number of sets use:
#
# Gem::Resolver.compose_sets set1, set2
#
# This method will eliminate nesting of composed sets.
class Gem::Resolver::ComposedSet < Gem::Resolver::Set
attr_reader :sets # :nodoc:
##
# Creates a new ComposedSet containing +sets+. Use
# Gem::Resolver::compose_sets instead.
def initialize *sets
@sets = sets
end
##
# Finds all specs matching +req+ in all sets.
def find_all req
res = []
@sets.each { |s| res += s.find_all(req) }
res
end
##
# Prefetches +reqs+ in all sets.
def prefetch reqs
@sets.each { |s| s.prefetch(reqs) }
end
end