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Make hash returned by Hash#transform_values not have a default

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This sets an explicit default of nil.  There is probably a better
approach of removing the default.

Fixes [Bug #17181]
This commit is contained in:
Jeremy Evans 2020-09-21 15:02:20 -07:00
parent 7ee166ed4e
commit df14c758fc
Notes: git 2020-09-22 11:35:34 +09:00
2 changed files with 2 additions and 0 deletions
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1
hash.c
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@ -3350,6 +3350,7 @@ rb_hash_transform_values(VALUE hash)
RETURN_SIZED_ENUMERATOR(hash, 0, 0, hash_enum_size);
result = hash_copy(hash_alloc(rb_cHash), hash);
SET_DEFAULT(result, Qnil);
if (!RHASH_EMPTY_P(hash)) {
rb_hash_stlike_foreach_with_replace(result, transform_values_foreach_func, transform_values_foreach_replace, result);

1
test/ruby/test_hash.rb
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@ -1696,6 +1696,7 @@ class TestHash < Test::Unit::TestCase
x.default_proc = proc {|h, k| k}
y = x.transform_values {|v| v ** 2 }
assert_nil(y.default_proc)
assert_nil(y.default)
y = x.transform_values.with_index {|v, i| "#{v}.#{i}" }
assert_equal(%w(1.0 2.1 3.2), y.values_at(:a, :b, :c))