Enforced immutability: Difference between revisions
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=={{header|Factor}}== |
=={{header|Factor}}== |
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Tuple slots may be declared <code>read-only</code>. For example, the <code>range</code> |
Tuple slots may be declared <code>read-only</code>. For example, the <code>range</code> tuple declares its slots <code>read-only</code>: |
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<lang factor>TUPLE: range |
<lang factor>TUPLE: range |
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{ from read-only } { length read-only } { step read-only } ;</lang> |
{ from read-only } { length read-only } { step read-only } ;</lang> |