Provides the ruby-1.9 block form of Enumerator, where you can write:
obj = Enumerator.new do |yielder| .. do stuff yielder.yield data # or: yielder << data .. etc end
When obj.each is called, the block is run once. It should call yielder.yield with each item it wishes to generate.
Example:
fib = Enumerator.new { |y| a = b = 1 loop { y << a a, b = b, a + b } } assert_equal [1, 1, 2, 3, 5, 8, 13, 21, 34, 55], fib.take(10)
# File lib/core/facets/enumerator.rb, line 33 33: def initialize(*args, &block) 34: if block_given? 35: @body = block 36: old_initialize(self, :_start) 37: else 38: old_initialize(*args) 39: end 40: end
# File lib/core/facets/enumerator/fx.rb, line 13 13: def fx 14: Functor.new do |op, *a| 15: each{ |e| e.send(op, *a) } 16: end 17: end
Convert an Enumerator object into a hash. This is equivalent to Array#to_h.
e1 = [[1,:a],[2,:b],[3,:c]].to_enum e1.to_h #=> { 1=>:a, 2=>:b, 3=>:c } e2 = [1,2,3,4,5].to_enum e2.to_h #=> {5=>nil, 1=>2, 3=>4} e3 = [1,2,1,3,1,5].to_enum e3.to_h #=> {1=>5}
CREDIT: Sandor Szücs
# File lib/core/facets/to_hash.rb, line 285 285: def to_h(mode=nil) 286: to_a.to_h(mode) 287: end
This is equivalent to Array#to_h_assoc.
# File lib/core/facets/to_hash.rb, line 309 309: def to_h_assoc 310: to_a.to_h_assoc 311: end
This is equivalent to Array#to_h_auto.
# File lib/core/facets/to_hash.rb, line 291 291: def to_h_auto 292: to_a.to_h_auto 293: end
This is equivalent to Array#to_h_flat.
# File lib/core/facets/to_hash.rb, line 303 303: def to_h_flat 304: to_a.to_h_flat 305: end
This is equivalent to Array#to_h_multi.
# File lib/core/facets/to_hash.rb, line 315 315: def to_h_multi 316: to_a.to_h_multi 317: end
This is equivalent to Array#to_h_splat.
# File lib/core/facets/to_hash.rb, line 297 297: def to_h_splat 298: to_a.to_h_splat 299: end
Disabled; run with --debug to generate this.
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