There is kinda plugin here (code is for linux or other posix system with dlfcn)
Why does it crush when using interface instead of abstract class? (-version=inter)
//dinter.d
module dinter;
version(inter) {
pragma(msg, "Using interface");
interface Dinter {
int foo(int a, int b);
}
}
else {
pragma(msg, "Using abstract class");
abstract class Dinter {
int foo(int a, int b);
}
}
//dimpl.d
//dmd -shared -fPIC dimpl.d dinter.d -oflibdimpl.so
//dmd -shared -fPIC dimpl.d dinter.d -oflibdimpl.so -verstion=inter
module dimpl;
import dinter;
class Dimpl : Dinter {
override int foo(int a, int b) {
return a+b;
}
}
extern(C) Dinter create() {
return new Dimpl;
}
//dmain.d
//dmd dmain.d -L-rpath=. -L-ldl
//dmd dmain.d -L-rpath=. -L-ldl -version=inter
import dinter;
import std.c.linux.linux;
import std.string : toStringz;
alias extern(C) Dinter function() CreateFn;
int main(string[] args) {
void* lib = dlopen(toStringz("./libdimpl.so"), RTLD_LAZY);
assert(lib);
auto create = cast(CreateFn)dlsym(lib, toStringz("create"));
assert(create);
Dinter d = create();
assert(d.foo(3,7)==10);
return 0;
}
Comment #1 by ssteale — 2014-03-14T04:54:38Z
This does not appear to be an all platforms issue. I have similar code and mine appears to work on a 64 bit system and fail on 32 bit, which in some ways is more serious.
Comment #2 by ssteale — 2014-03-14T05:23:13Z
Checked with code included in bug report - OK with 2.064 64 bit - fails with 32 bit.
Comment #3 by robert.schadek — 2024-12-13T18:09:52Z