On Wednesday, 15 June 2016 at 12:14:45 UTC, Ola Fosheim Grøstad
wrote:
On Wednesday, 15 June 2016 at 11:33:23 UTC, Chris wrote:
But Python for example doesn't care.
Python is fairly dynamic and static analysis tools such as
PyCharm helps a lot when you write larger Python projects.
What you describe is basically trying to mimic static typing.
No, you can have something like this:
var x = f(42);
if(x>100) freeze x;
// whether x is immutable or not is not statically known at
this point
But 'freezing' ain't got nothing to do with the type. It's
basically D's `immutable`.
In my experience, statically typed languages prevent a lot of
silly and time consuming bugs by simply checking the type. If,
after a few changes, function arguments don't match, the compiler
(or interpreter) complains immediately. In Python the code may
still work:
`
def loophere(variable):
for i in variable:
print (i)
loopy = "Ola, mundo!"
loophere(loopy)
# Developer decides that `loopy` should be a list of strings
loopy = ["Ola", "mundo", "!"]
loophere(loopy)
`
