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authorDavid Heinemeier Hansson <david@loudthinking.com>2006-02-19 01:05:55 +0000
committerDavid Heinemeier Hansson <david@loudthinking.com>2006-02-19 01:05:55 +0000
commit9723d03531ac73d5e06377f6968710d1473752ae (patch)
tree949114c8e7795326642d995be905162364544a03 /activesupport
parent8896efd41aca929ef91ee28a0e406bffeb253834 (diff)
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Fix Object.subclasses_of to only return currently defined objects (closes #3882) [Jonathan Viney <jonathan@bluewire.net.nz>]
git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@3607 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
Diffstat (limited to 'activesupport')
-rw-r--r--activesupport/CHANGELOG2
-rw-r--r--activesupport/lib/active_support/core_ext/object/extending.rb4
-rw-r--r--activesupport/test/core_ext/object_and_class_ext_test.rb9
3 files changed, 13 insertions, 2 deletions
diff --git a/activesupport/CHANGELOG b/activesupport/CHANGELOG
index 6d3fd44368..e6e8f2d1ea 100644
--- a/activesupport/CHANGELOG
+++ b/activesupport/CHANGELOG
@@ -1,5 +1,7 @@
*SVN*
+* Fix Object.subclasses_of to only return currently defined objects [Jonathan Viney <jonathan@bluewire.net.nz>]
+
* Fix constantize to properly handle names beginning with '::'. [Nicholas Seckar]
* Make String#last return the string instead of nil when it is shorter than the limit [Scott Barron].
diff --git a/activesupport/lib/active_support/core_ext/object/extending.rb b/activesupport/lib/active_support/core_ext/object/extending.rb
index 8c638f83c2..9abdfc0bc9 100644
--- a/activesupport/lib/active_support/core_ext/object/extending.rb
+++ b/activesupport/lib/active_support/core_ext/object/extending.rb
@@ -8,7 +8,7 @@ class Object #:nodoc:
def subclasses_of(*superclasses)
subclasses = []
ObjectSpace.each_object(Class) do |k|
- next if (k.ancestors & superclasses).empty? || superclasses.include?(k) || k.to_s.include?("::") || subclasses.include?(k)
+ next if (k.ancestors & superclasses).empty? || superclasses.include?(k) || k.to_s.include?("::") || subclasses.include?(k) || !Object.const_defined?(k.to_s.to_sym)
subclasses << k
end
subclasses
@@ -42,4 +42,4 @@ class Object #:nodoc:
block.bind(self)[*arguments]
end
end
-end \ No newline at end of file
+end
diff --git a/activesupport/test/core_ext/object_and_class_ext_test.rb b/activesupport/test/core_ext/object_and_class_ext_test.rb
index 5d7a06d08d..6a100e813b 100644
--- a/activesupport/test/core_ext/object_and_class_ext_test.rb
+++ b/activesupport/test/core_ext/object_and_class_ext_test.rb
@@ -7,6 +7,9 @@ class ClassB < ClassA; end
class ClassC < ClassB; end
class ClassD < ClassA; end
+class ClassI; end
+class ClassJ < ClassI; end
+
module Bar
def bar; end
end
@@ -31,6 +34,12 @@ class ClassExtTest < Test::Unit::TestCase
assert !defined?(ClassC)
assert !defined?(ClassD)
end
+
+ def test_subclasses_of
+ assert_equal [ClassJ], Object.subclasses_of(ClassI)
+ ClassI.remove_subclasses
+ assert_equal [], Object.subclasses_of(ClassI)
+ end
end
class ObjectTests < Test::Unit::TestCase