[Toby]
I've recently been looking for an alternative
*compiled* object-oriented
language, because let's face it, Python is on average 10 times slower
than C. Sometimes you just can't afford it.
When speed becomes a crucial criterion, I usually switch to C++
extensions for Python. Easy to code, and works like a charm (until the
next major gcc release that is :)
Enter Objective-C:
- STRICT SUPERSET OF C: every valid C program is a valid ObjC program.
This makes it trivial to include or link to C code and libraries and
to mix procedural, object-oriented and ASM code in the same *file*.
- SIMPLE: ObjC is plain C with one syntax addition and a few new
keywords. It only extends the C language to support Smalltalk-like
object-oriented features, because that's all you're going to need.
No more operator overloading, templates, references, 'const', etc.
- DYNAMICALLY TYPED: messages (method calls) are delivered according to
the dynamic type of the target object, not to some static type. This
is how Python works. You can even send an object a message that is
not specified in its interface. This might seem like a bad idea, but
instead it allows for powerful delegation-based design patterns.
- FAST: Objective-C performs dynamically bound message calls very
quickly, about 1.5-2.0 times as long as a plain C function call!
Bringing very sophisticated high-level features to the table, Obj-C
would have to replace both Python and C++ for me. I think that in
comparison, Python's high-level features make it a fair bit easier to
use and C++ has features I have grown addicted to (templates,
overloading, namespaces).
So, that would mean giving up dear features for a reduction in
language diversity. It might work out well, but a significant benefit
of the Python/C++ combination that I have come to appreciate a lot is
the clean and strict encapsulation of high- and low-level code that
makes managing even a large project quite a painless experience.
Cheers, Tim