============================== a.d ====================== template FFF() { class A : B { this(){} } class B { } } void main() { mixin FFF; } ========================================================== C:\dev>dmd a.d FuncDeclaration::semantic3(constructor 'this', sc = 0098A7E8) Assertion failure: '0' on line 373 in file 'func.c' abnormal program termination