https://issues.dlang.org/show_bug.cgi?id=15869
--- Comment #5 from ag0ae...@gmail.com --- (In reply to Yuxuan Shui from comment #4) > Looks like if clobber is not called in constructor, the return value is > stored into a temporary variable and then copied into xx using Set.opAssign. > > I'm not sure if this is correct since Set has disabled this(this). `@disable this(this)` does not prevent moving the struct. A move is a bitwise copy that invalidates the source, i.e. there are no destructor or postblit calls. --