Bug 8456 – DMD crash with variadic base-class ctor and non-variadic subclass ctor

The following reduced case causes dmd to crash on Windows 7, DMD v2.059 module crash; class A { this(T...)(B root, T args) { } } class B : A { } Normal compile using: dmd crash.d Giving B a variadic constructor: class B : A { this(T...)(T args) { } } fixes the problem, but a non-variadic ctor does not help. In case it is helpful, here is the Win crash report: Problem signature: Problem Event Name: APPCRASH Application Name: dmd.exe Application Version: 0.0.0.0 Application Timestamp: 00000000 Fault Module Name: dmd.exe Fault Module Version: 0.0.0.0 Fault Module Timestamp: 00000000 Exception Code: c0000005 Exception Offset: 0007fb07 OS Version: 6.1.7601.2.1.0.768.3 Locale ID: 1033 Additional Information 1: c0d2 Additional Information 2: c0d2fd7c47233db608dcc0a8dfa7e295 Additional Information 3: 1f23 Additional Information 4: 1f2306dd978c4ee71ff52bd5c60c90af

2.061+: test.d(8): Error: constructor test.B.this no match for implicit super() call in implicitly generated constructor