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Feature #11052 ยป 0001-Blockless-Pathname-ascend-and-descend-return-Enumera.patch

chastell (Piotr Szotkowski), 04/08/2015 10:23 PM

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ChangeLog
Thu Apr 9 07:18:48 2015 Piotr Szotkowski <chastell@chastell.net>
* ext/pathname/lib/pathname.rb: blockless Pathname#ascend
and Pathname#descend return Enumerator. [Feature #11052]
* test/pathname/test_pathname.rb: test the above.
Wed Apr 8 17:45:02 2015 Shannon Skipper <shannonskipper@gmail.com>
* version.c (Init_version): the version of the engine or
ext/pathname/lib/pathname.rb
# #<Pathname:path/to/some>
# #<Pathname:path/to/some/file.rb>
#
# Returns an Enumerator if no block was given.
#
# enum = Pathname.new("/usr/bin/ruby").descend
# # ... do stuff ...
# enum.each { |e| ... }
# # yields Pathnames /, /usr, /usr/bin, and /usr/bin/ruby.
#
# It doesn't access the filesystem.
#
def descend
return to_enum(__method__) unless block_given?
vs = []
ascend {|v| vs << v }
vs.reverse_each {|v| yield v }
......
# #<Pathname:path/to>
# #<Pathname:path>
#
# Returns an Enumerator if no block was given.
#
# enum = Pathname.new("/usr/bin/ruby").ascend
# # ... do stuff ...
# enum.each { |e| ... }
# # yields Pathnames /usr/bin/ruby, /usr/bin, /usr, and /.
#
# It doesn't access the filesystem.
#
def ascend
return to_enum(__method__) unless block_given?
path = @path
yield self
while r = chop_basename(path)
test/pathname/test_pathname.rb
end
def descend(path)
Pathname.new(path).enum_for(:descend).map {|v| v.to_s }
Pathname.new(path).descend.map(&:to_s)
end
defassert(:descend, %w[/ /a /a/b /a/b/c], "/a/b/c")
......
defassert(:descend, %w[a/], "a/")
def ascend(path)
Pathname.new(path).enum_for(:ascend).map {|v| v.to_s }
Pathname.new(path).ascend.map(&:to_s)
end
defassert(:ascend, %w[/a/b/c /a/b /a /], "/a/b/c")
......
defassert(:ascend, %w[./a/b/c ./a/b ./a .], "./a/b/c")
defassert(:ascend, %w[a/], "a/")
def test_blockless_ascend_is_enumerator
assert_kind_of(Enumerator, Pathname.new('a').ascend)
end
def test_blockless_descend_is_enumerator
assert_kind_of(Enumerator, Pathname.new('a').descend)
end
def test_initialize
p1 = Pathname.new('a')
assert_equal('a', p1.to_s)
    (1-1/1)