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Polymorphic copy: Difference between revisions
Added Slate implementation
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puts obj1.dup.name # prints "T"
puts obj2.dup.name # prints "S"</lang>
=={{header|Slate}}==
All objects in Slate may be <tt>clone</tt>d unless they are clones of <tt>Oddball</tt> (like <tt>True</tt>, <tt>False</tt>, and <tt>Nil</tt>) or are word-size Integers (which are encoded as tagged pointer values). This is a shallow copy where no values held in the object's slots are replaced with copies. There is also a <tt>copy</tt> method which is universal and overridden to perform deep copies as appropriate - copying continues via recursion through slot values and should be modified on any type where equality (<tt>=</tt>) is overridden.
<lang slate>
define: #T &parents: {Cloneable}.
define: #S &parents: {Cloneable}.
define: #obj1 -> T clone.
define: #obj2 -> S clone.
obj1 printName.
obj2 printName.
</lang>
=={{header|Tcl}}==
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