Arguments and attributes with the same name
Ary Borenszweig
ary at esperanto.org.ar
Thu Mar 4 07:05:13 PST 2010
bearophile wrote:
> Ary Borenszweig:
>
>> This can be solved if the compiler warns when an assignment is from a
>> variable to the same one.
>>
>> x = x; // error: assignment has no effect
>
> That's nice in general to have, but I think it's not enough, because if I want to assign to an attribute an incremented value:
> x = x+1;
> What is that x? The attribute or the argument?
class Foo:
def __init__(self, x):
x = x + 1
This compiles just fine in pyhtoh.
What is x here? The argument, of course, because that's how it works in
python. You forgot to put self before x.
class Foo {
int x;
this(int x) {
x = x + 1;
}
}
What is x here? The argument, of course, because that's how it works in
python. You forgot to put this before x.
How is python safer than D in that sense?
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