Enforced immutability: Difference between revisions
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(Add Nimrod) |
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<lang Nemerle>def foo = 42; // immutable by default |
<lang Nemerle>def foo = 42; // immutable by default |
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mutable bar = "O'Malleys"; // mutable because you asked it to be</lang> |
mutable bar = "O'Malleys"; // mutable because you asked it to be</lang> |
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=={{header|Nimrod}}== |
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<lang nimrod>var x = "mutablefoo" # Mutable variable |
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let y = "immutablefoo" # Immutable variable, at runtime |
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const z = "constantfoo" # Immutable constant, at compile time |
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x[0] = 'M' |
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y[0] = 'I' # Compile error: 'y[0]' cannot be assigned to |
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z[0] = 'C' # Compile error: 'z[0]' cannot be assigned to</lang> |
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=={{header|OCaml}}== |
=={{header|OCaml}}== |
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