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* ext/psych/lib/psych/visitors/yaml_tree.rb: use YAML 1.0 output

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format for serializing nil values.  Thanks Eric Hodel!
* test/psych/test_nil.rb: test for nil values

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@30459 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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tenderlove 2011-01-05 17:57:38 +00:00
parent f86ca53460
commit e9e01ec4a0
3 changed files with 26 additions and 1 deletions
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7
ChangeLog
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@ -1,3 +1,10 @@
Thu Jan 6 02:55:48 2011 Aaron Patterson <aaron@tenderlovemaking.com>
* ext/psych/lib/psych/visitors/yaml_tree.rb: use YAML 1.0 output
format for serializing nil values. Thanks Eric Hodel!
* test/psych/test_nil.rb: test for nil values
Wed Jan 5 14:21:34 2011 Mark Dodwell <hi@mkdynamic.co.uk>
* string.c: fix rdoc typo.

2
ext/psych/lib/psych/visitors/yaml_tree.rb
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@ -279,7 +279,7 @@ module Psych
end
def visit_NilClass o
@emitter.scalar('', nil, 'tag:yaml.org,2002:null', false, false, Nodes::Scalar::ANY)
@emitter.scalar('', nil, 'tag:yaml.org,2002:null', true, false, Nodes::Scalar::ANY)
end
def visit_Symbol o

18
test/psych/test_nil.rb Normal file
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@ -0,0 +1,18 @@
require_relative 'helper'
module Psych
class TestNil < TestCase
def test_nil
yml = Psych.dump nil
assert_equal "--- \n...\n", yml
assert_equal nil, Psych.load(yml)
end
def test_array_nil
yml = Psych.dump [nil]
assert_equal "---\n- \n", yml
assert_equal [nil], Psych.load(yml)
end
end
end