mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
8552f7aa68
Only attempt to build extensions for newly-installed gems. This prevents compilation attempts at gem activation time for gems that already have extensions built. Fix crash in the dependency resolver for dependencies that cannot be resolved. * test/rubygems: ditto. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43368 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
48 lines
673 B
Ruby
48 lines
673 B
Ruby
module Gem
|
|
List = Struct.new(:value, :tail)
|
|
|
|
class List
|
|
def each
|
|
n = self
|
|
while n
|
|
yield n.value
|
|
n = n.tail
|
|
end
|
|
end
|
|
|
|
def to_a
|
|
ary = []
|
|
n = self
|
|
while n
|
|
ary.unshift n.value
|
|
n = n.tail
|
|
end
|
|
|
|
ary
|
|
end
|
|
|
|
def find
|
|
n = self
|
|
while n
|
|
v = n.value
|
|
return v if yield(v)
|
|
n = n.tail
|
|
end
|
|
|
|
nil
|
|
end
|
|
|
|
def prepend(value)
|
|
List.new value, self
|
|
end
|
|
|
|
def pretty_print q # :nodoc:
|
|
q.pp to_a
|
|
end
|
|
|
|
def self.prepend(list, value)
|
|
return List.new(value) unless list
|
|
List.new value, list
|
|
end
|
|
end
|
|
end
|