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Polymorphic copy: Difference between revisions
→{{header|Nimrod}}
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=={{header|Nimrod}}==
<lang nimrod>type
T = ref object of TObject
myValue: string
S1 = ref object of T
S2 = ref object of T
method speak(x: T) = echo "T Hello ", x.myValue
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echo "Making copy of a as u, colors and types should match"
u.deepCopy(a)
u.speak
a.speak
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Assigning new color to u. Since u,b references same object b's color changes as well
S2 Woof Yellow
S2 Woof
=={{header|Objective-C}}==
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