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[ruby/set] Fix ^ to respect subclasses

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f88ecdef6b
This commit is contained in:
Kouhei Yanagita 2024-11-29 11:10:07 +09:00 • committed by Hiroshi SHIBATA
parent f2334cf4b1
commit ae59b44041
2 changed files with 6 additions and 1 deletions
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2
lib/set.rb
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@ -662,7 +662,7 @@ class Set
# Set[1, 2] ^ Set[2, 3] #=> #<Set: {3, 1}> # Set[1, 2] ^ Set[2, 3] #=> #<Set: {3, 1}>
# Set[1, 'b', 'c'] ^ ['b', 'd'] #=> #<Set: {"d", 1, "c"}> # Set[1, 'b', 'c'] ^ ['b', 'd'] #=> #<Set: {"d", 1, "c"}>
def ^(enum) def ^(enum)
n = Set.new(enum) n = self.class.new(enum)
each { |o| n.add(o) unless n.delete?(o) } each { |o| n.add(o) unless n.delete?(o) }
n n
end end

5
test/set/test_set.rb
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@ -643,6 +643,11 @@ class TC_Set < Test::Unit::TestCase
ret = set ^ [2,4,5,5] ret = set ^ [2,4,5,5]
assert_not_same(set, ret) assert_not_same(set, ret)
assert_equal(Set[1,3,5], ret) assert_equal(Set[1,3,5], ret)
set2 = Set2[1,2,3,4]
ret2 = set2 ^ [2,4,5,5]
assert_instance_of(Set2, ret2)
assert_equal(Set2[1,3,5], ret2)
end end
def test_eq def test_eq