Allen Wirfs-Brock wrote:
On Jul 22, 2013, at 6:30 PM, Brendan Eich wrote:
Allen Wirfs-Brock wrote:
...
I agree that int64(x) is nice for int64 (although I would expect such scalar
values to me immutable regardless of how you create them).
The intuition (supported by other languages) is that 'new' heap-allocates
something mutable by default. Stack allocation and (implicit or not) coercion
does not. C++ is not far from the mark here, but IIRC C# is similar.
pretty much agree, except for the mutable part. There is no reason that a heap
allocated entity can't be immutable, by default if it is appropriate for the
abstraction.
Ok, but you are picking a nit.
Similar,it is certainly possible to design a language with stack allocated
mutable structs.
Let's not.
On the heap-allocated immutable bit, you'd need to say something extra
to "opt in". That's JS!
/be
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