Another "D is cool" post
Guillaume Boucher via Digitalmars-d
digitalmars-d at puremagic.com
Mon May 29 12:54:22 PDT 2017
On Monday, 29 May 2017 at 19:07:03 UTC, H. S. Teoh wrote:
> So, recently in one of my pet projects I have a bit of code
> that takes a string, fills in a code template, invokes the D
> compiler to create a shared object, then loads the object with
> dlopen() and calls dlsym() to get the entry point into the
> compiled code as a function pointer.
Seems like the perfect job for a scripting language like Python.
I'm not sure why you decided to compare everything to C. Even C
programmers will agree with you that in D you can do things in a
shorter way -- just slower/bloated/more magic/with less
control/not portable/<that C programmers favourite excuse>.
In all the examples you bring, there's nothing special about D.
You can do anything in C++/Go/Rust/Swift/Python/<any other non-C
language> with comparable complexity.
> The tricky part, though, is that .mangleof only works on an
> identifier defined in the *current* program; the compiler can't
> do it for a symbol in a string that's to be passed at runtime
> to another invocation of the compiler. And AFAIK, there's
> currently no way to ask the compiler "what would be the
> mangling of mymodule.symbol?" if 'mymodule' and 'symbol' only
> exist in the shared object, not in the main program.
Not a problem in any other language (C++ has a well-defined ABI,
dynamic languages don't need that).
I enjoy D, but some of those fanboy posts are just totally
worthless.
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