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1 | | -if RUBY_VERSION < '1.9' |
2 | | - |
3 | | - require 'enumerator' |
4 | | - |
5 | | - # for Ruby 1.8 -> 1.9 transition |
6 | | - Enumerator = Enumerable::Enumerator unless defined?(::Enumerator) |
7 | | - |
8 | | - class Enumerator |
9 | | - |
10 | | - private |
11 | | - |
12 | | - alias :old_initialize :initialize |
13 | | - |
14 | | - # Provides the ruby-1.9 block form of Enumerator, where you can write: |
15 | | - # |
16 | | - # obj = Enumerator.new do |yielder| |
17 | | - # # ... |
18 | | - # yielder.yield(data) # or: yielder << data |
19 | | - # # ... |
20 | | - # end |
21 | | - # |
22 | | - # When obj.each is called, the block is run once. It should call |
23 | | - # yielder.yield with each item it wishes to generate. |
24 | | - # |
25 | | - # Example: |
26 | | - # |
27 | | - # fib = Enumerator.new { |y| |
28 | | - # a = b = 1 |
29 | | - # loop { |
30 | | - # y << a |
31 | | - # a, b = b, a + b |
32 | | - # } |
33 | | - # } |
34 | | - # |
35 | | - # fib.take(10) #=> [1, 1, 2, 3, 5, 8, 13, 21, 34, 55] |
36 | | - # |
37 | | - def initialize(*args, &block) |
38 | | - if block |
39 | | - @body = block |
40 | | - old_initialize(self, :_start) |
41 | | - else |
42 | | - old_initialize(*args) |
43 | | - end |
44 | | - end |
45 | | - |
46 | | - def _start(*args,&receiver) #:nodoc: |
47 | | - @body.call(Yielder.new(&receiver), *args) |
48 | | - end |
49 | | - |
50 | | - # Wrapper to allow yielder.yield(output) or yielder << output |
51 | | - # in the same way as ruby-1.9 |
52 | | - # |
53 | | - # TODO: Why can't Yielder take a block instead of a proc argument? |
54 | | - |
55 | | - class Yielder #:nodoc: |
56 | | - def initialize(&proc) |
57 | | - @proc = proc |
58 | | - end |
59 | | - def yield(*args) |
60 | | - @proc[*args] |
61 | | - end |
62 | | - alias :<< :yield |
63 | | - end |
64 | | - |
65 | | - end |
66 | | - |
67 | | -end |
68 | | - |
69 | | -path = __FILE__.chomp('.rb') |
70 | | -base = File.basename(path) |
71 | | -Dir[File.join(path, '*.rb')].each do |lib| |
72 | | - #require lib # why is this so much slower? |
73 | | - require "facets/#{base}/#{File.basename(lib)}" |
74 | | -end |
75 | | - |
| 1 | +require_relative 'enumerator/fx' |
| 2 | +require_relative 'enumerator/lazy/squeeze' |
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