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-rw-r--r--ChangeLog4
-rw-r--r--lib/set.rb17
2 files changed, 14 insertions, 7 deletions
diff --git a/ChangeLog b/ChangeLog
index 20ac9549bc..23f22c59f8 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Mon Sep 14 04:07:09 2009 Marc-Andre Lafortune <ruby-core@marc-andre.ca>
+
+ * lib/set.rb (==): Optimization; patch by Arthur Schreiber [ruby-core:17203]
+
Mon Sep 14 03:30:23 2009 Alexander Zavorine <alexandre.zavorine@nokia.com>
* symbian/pre-build: added rule to generate id.h for Symbian build.
diff --git a/lib/set.rb b/lib/set.rb
index 8f2bef91ba..f21ff14a70 100644
--- a/lib/set.rb
+++ b/lib/set.rb
@@ -327,13 +327,16 @@ class Set
# Returns true if two sets are equal. The equality of each couple
# of elements is defined according to Object#eql?.
- def ==(set)
- equal?(set) and return true
-
- set.is_a?(Set) && size == set.size or return false
-
- hash = @hash.dup
- set.all? { |o| hash.include?(o) }
+ def ==(other)
+ if self.equal?(other)
+ true
+ elsif other.instance_of?(self.class)
+ @hash == other.instance_variable_get(:@hash)
+ elsif other.is_a?(Set) && self.size == other.size
+ other.all? { |o| @hash.include?(o) }
+ else
+ false
+ end
end
def hash # :nodoc: