• via Digitalmars-d-bugs (34/34) Nov 22 2015 https://issues.dlang.org/show_bug.cgi?id=15373

via Digitalmars-d-bugs <digitalmars-d-bugs puremagic.com> writes:

https://issues.dlang.org/show_bug.cgi?id=15373

          Issue ID: 15373
           Summary: Segfault when using typeid on extern(C++) class with
                    virtual functions
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P1
         Component: dmd
          Assignee: nobody puremagic.com
          Reporter: jakobovrum gmail.com

----
extern(C++) interface I
{
    void foo();
}

extern(C++) class C : I
{
    override void foo() {}
}

void main()
{
    import std.stdio;
    writeln(typeid(new C)); // segfault
}
----

This seems like it should be statically disallowed. Any type with an
extern(C++) type in its inheritance hierarchy should be disallowed in typeid().
I don't know if extern(C++) classes can implement D interfaces, but it should
at least return null in such cases.

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