Hi, I was working on a grammar with Pegged and dmd crashed. I reduced it to:

class ZeroOrMore(Expr)
{
    enum name = "ZeroOrMore!("~Expr.name~")";
}
class Range(char begin, char end)
{
    enum name = "Range!("~begin~","~end~")";
}
mixin(q{
	class RubySource : ZeroOrMore!(DecLiteral)
	{
	}
	class DecLiteral : Range!('0','9')
	{
	}
});
void main() {
}

I get this error, followed by dmd crashing:

dmd_crash.d(13): Error: class dmd_crash.DecLiteral is forward referenced when looking for 'name'

If RubySource and DecLiteral are entered normally (not as a string mixin), then the code compiles.


I tried reducing it a bit more:

class ZeroOrMore(Expr)
{
    enum name = "ZeroOrMore!("~Expr.name~")";
}
mixin(q{
	alias ZeroOrMore!(DecLiteral) foo;

	class DecLiteral
	{
		enum name = "Range!("~begin~","~end~")";
	}
});
void main() {
}

However, then I get a *large* number of errors:

dmd_crash.d(32): Error: class dmd_crash.DecLiteral is forward referenced when looking for 'name'
dmd_crash.d(32): Error: class dmd_crash.DecLiteral is forward referenced when looking for 'opDot'
dmd_crash.d(32): Error: class dmd_crash.DecLiteral is forward referenced when looking for 'opDispatch'
dmd_crash.d(32): Error: class dmd_crash.DecLiteral is forward referenced when looking for 'ame'
dmd_crash.d(32): Error: class dmd_crash.DecLiteral is forward referenced when looking for 'nme'
dmd_crash.d(32): Error: class dmd_crash.DecLiteral is forward referenced when looking for 'nae'
dmd_crash.d(32): Error: class dmd_crash.DecLiteral is forward referenced when looking for 'nam'
dmd_crash.d(32): Error: class dmd_crash.DecLiteral is forward referenced when looking for 'anme'
...

For thousands of lines. I waited a little while, then killed dmd. Both of these examples are valid code, right?