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digitalmars.D.learn - segmentation fault with Object.factory()

reply berni <berni example.com> writes:
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?
Feb 19
parent reply rikki cattermole <rikki cattermole.co.nz> writes:
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(); }
Feb 19
parent reply berni <berni example.com> writes:
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?)
Feb 19
parent ag0aep6g <anonymous example.com> writes:
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".
Feb 19