When trying to compile this code:

import std.stdio;
class A;

class B(T) : T {
}

void main() {
    writeln(typeid(B!A));
}

I get this error: Assertion failure: '!scope' on line 358 in file 'toobj.c'.
Shouldn't it be more like: Error: class main.A unable to resolve forward reference in definition

Looks like a bug?

comco:

> Looks like a bug?

This is what DMD 2.061alpha prints, it doesn't crash:

...\dmd2\src\phobos\std\range.d(603): Error: static assert  "Cannot put a string into a LockingTextWriter"
...\dmd2\src\phobos\std\format.d(2349):        instantiated from here: put!(LockingTextWriter, string)
...\dmd2\src\phobos\std\format.d(2782):        instantiated from here: formatValue!(LockingTextWriter, TypeInfo_Class, char)
...\dmd2\src\phobos\std\format.d(415):        instantiated from here: formatGeneric!(LockingTextWriter, TypeInfo_Class, char)
...\dmd2\src\phobos\std\stdio.d(712):        ... (1 instantiations, -v to show) ...
...\dmd2\src\phobos\std\stdio.d(1618):        instantiated from here: write!(TypeInfo_Class,char)
test.d(5):        instantiated from here: writeln!(TypeInfo_Class)

Bye,
bearophile

On Thursday, 29 November 2012 at 01:38:50 UTC, bearophile wrote:
> comco:
>
>> Looks like a bug?
>
> This is what DMD 2.061alpha prints, it doesn't crash:
>
> ...\dmd2\src\phobos\std\range.d(603): Error: static assert  "Cannot put a string into a LockingTextWriter"
> ...\dmd2\src\phobos\std\format.d(2349):        instantiated from here: put!(LockingTextWriter, string)
> ...\dmd2\src\phobos\std\format.d(2782):        instantiated from here: formatValue!(LockingTextWriter, TypeInfo_Class, char)
> ...\dmd2\src\phobos\std\format.d(415):        instantiated from here: formatGeneric!(LockingTextWriter, TypeInfo_Class, char)
> ...\dmd2\src\phobos\std\stdio.d(712):        ... (1 instantiations, -v to show) ...
> ...\dmd2\src\phobos\std\stdio.d(1618):        instantiated from here: write!(TypeInfo_Class,char)
> test.d(5):        instantiated from here: writeln!(TypeInfo_Class)
>
> Bye,
> bearophile

Nice. Thanks!