Permalink
Browse files

Merge pull request #4103 from lest/remove-1-8-code

remove Kernel#singleton_class from core_ext as it is present in ruby 1.9
  • Loading branch information...
2 parents 2e9eb0a + a57c644 commit 707eed72d33ab5048ad1545df4fc1f81652379af @josevalim josevalim committed Dec 21, 2011
@@ -1,11 +1,4 @@
module Kernel
- # Returns the object's singleton class.
- def singleton_class
- class << self
- self
- end
- end unless respond_to?(:singleton_class) # exists in 1.9.2
-
# class_eval on an object acts like singleton_class.class_eval.
def class_eval(*args, &block)
singleton_class.class_eval(*args, &block)
@@ -42,11 +42,6 @@ def test_silence_stderr_with_return_value
assert_equal 1, silence_stderr { 1 }
end
- def test_singleton_class
- o = Object.new
- assert_equal class << o; self end, o.singleton_class
- end
-
def test_class_eval
o = Object.new
class << o; @x = 1; end
@@ -112,4 +107,4 @@ def self.logger
ensure
Object.send(:remove_const, "Rails")
end
-end
+end
@@ -177,19 +177,6 @@ end
NOTE: Defined in +active_support/core_ext/object/try.rb+.
-h4. +singleton_class+
-
-The method +singleton_class+ returns the singleton class of the receiver:
-
-<ruby>
-String.singleton_class # => #<Class:String>
-String.new.singleton_class # => #<Class:#<String:0x17a1d1c>>
-</ruby>
-
-WARNING: Fixnums and symbols have no singleton classes, +singleton_class+ raises +TypeError+ on them. Moreover, the singleton classes of +nil+, +true+, and +false+, are +NilClass+, +TrueClass+, and +FalseClass+, respectively.
-
-NOTE: Defined in +active_support/core_ext/kernel/singleton_class.rb+.
-
h4. +class_eval(*args, &block)+
You can evaluate code in the context of any object's singleton class using +class_eval+:

0 comments on commit 707eed7

Please sign in to comment.