Singleton: Difference between revisions
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(→{{header|C++}}: thread-safe singleton without mutexes in C++11) |
m (Added Sidef) |
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// any code here gets executed as if in a constructor |
// any code here gets executed as if in a constructor |
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}</lang> |
}</lang> |
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=={{header|Sidef}}== |
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<lang ruby>class Singleton(name) { |
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static instance; |
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method new(name) { |
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instance ||= Singleton.bless(Hash(name => name)); |
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} |
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method new { |
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Singleton.new(nil); |
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} |
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} |
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var s1 = Singleton('foo'); |
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say s1.name; #=> 'foo' |
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say s1.object_id; #=> '30424504' |
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var s2 = Singleton(); |
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say s2.name; #=> 'foo' |
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say s2.object_id; #=> '30424504' |
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s2.name = 'bar'; # change name in s2 |
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say s1.name; #=> 'bar'</lang> |
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=={{header|Slate}}== |
=={{header|Slate}}== |
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