Enforced immutability: Difference between revisions
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(Add Nimrod) |
m (variable trait "is readonly" is not valid anymore) |
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Variables are considered mutable by default, but may be marked as readonly after initialization: |
Variables are considered mutable by default, but may be marked as readonly after initialization: |
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<lang perl6>my $pi |
<lang perl6>my $pi ::= 3 + rand;</lang> |
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my $pi ::= 3 + rand; # same thing, SSA-ish form</lang> |
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Unlike variables, formal parameters are considered readonly by default even if bound to a mutable container. |
Unlike variables, formal parameters are considered readonly by default even if bound to a mutable container. |
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<lang perl6>sub sum (Num $x, Num $y) { |
<lang perl6>sub sum (Num $x, Num $y) { |
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