I get a segmentation fault, when I run this program:

>void main()
>{
>    A bar = cast(A)Object.factory("AA");
>    bar.foo();
>}
>
>class A    { abstract void foo(); }
>class AA:A { override void foo() {} }

The call of bar.foo() is, where the segmentation fault occurs. When I use A bar = new AA(); instead of the factory it works.

What's wrong here?

On 19/02/2017 11:06 PM, berni wrote:
> I get a segmentation fault, when I run this program:
>
>> void main()
>> {
>>    A bar = cast(A)Object.factory("AA");
>>    bar.foo();
>> }
>>
>> class A    { abstract void foo(); }
>> class AA:A { override void foo() {} }
>
> The call of bar.foo() is, where the segmentation fault occurs. When I
> use A bar = new AA(); instead of the factory it works.
>
> What's wrong here?

void main()
{
   A bar = cast(A)Object.factory(__MODULE__ ~ ".AA");
   bar.foo();
}

On Sunday, 19 February 2017 at 10:15:49 UTC, rikki cattermole wrote:
>> What's wrong here?
>
> void main()
> {
>    A bar = cast(A)Object.factory(__MODULE__ ~ ".AA");
>    bar.foo();
> }

Oops. I overdid when trying to create a small example. With the module it works, but my original program had the module and still produced an segmentation fault. After some more investigations I found out, that it was not due to a mistake in the program, but because rdmd didn't recompile after I called it with an --extra-file added. Looks like a bug in rdmd... Here is a small example:

test.d:

>module test;
>
>import std.stdio;
>
>void main()
>{
>    B tmp = cast(B)Object.factory("test2.BB");
>    tmp.m1();
>}
>
>interface A   { abstract void m1(); }
>interface B:A { abstract void m2(); }
>class AA:A    { override void m1() { writeln("A"); } }

test2.d:

>module test2;
>
>import std.stdio;
>import test;
>
>class BB:AA,B { override void m2() { writeln("B"); } }

And here is what I get when compiling:

>$> rdmd test.d
>segmentation fault
>$> rdmd --extra-file=test2.d test.d
>segmentation fault
>$> rm -rf /tmp/.rdmd-1000/
>$> rdmd --extra-file=test2.d test.d
>A
>$> rdmd -version
>rdmd build 20170122
>[...]

Should I report this bug anywhere (or am I wrong again?)

On 02/19/2017 12:13 PM, berni wrote:
> And here is what I get when compiling:
>
>> $> rdmd test.d
>> segmentation fault
>> $> rdmd --extra-file=test2.d test.d
>> segmentation fault
>> $> rm -rf /tmp/.rdmd-1000/
>> $> rdmd --extra-file=test2.d test.d
>> A
>> $> rdmd -version
>> rdmd build 20170122
>> [...]
>
> Should I report this bug anywhere (or am I wrong again?)

Looks like a bug, yes. Please report on <https://issues.dlang.org/>. For "component" choose "tools".