On Friday, 20 May 2016 at 20:30:22 UTC, chmike wrote:
I'm a bit surprized that the language doesn't support this. We
have immutable strings that can be assigned to different
variables. Why couldn't we do the same with objects ?
Consider this:
immutable(char)[] str;
Here, the array elements of str are immutable, i.e. you cannot do
this:
str[0] = 's'
However, the array reference itself is mutable, so you can freely
assign array references around. This is what string is aliased to.
To prevent the array reference from being assigned:
immutable(char[]) str;
Now trying to assign another string to str will produce a
compiler error.
With arrays and pointers, we distinguish between the data and the
reference. With classes, we do not; there is only the reference.
