Bug 12256 – Neither arrays nor associative arrays finalize their data

I expect this is an known issue but we may should fix this: ---- import std.stdio; struct Foo { this(this) { writeln("Copy"); } ~this() { writeln("DTor"); } } void main() { Foo[] fs; fs ~= Foo(); Foo[int] fas; fas[42] = Foo(); // Even this doesn't change anything //destroy(fas); //destroy(fs); } ---- You will never see "DTor". But if you work with ref count or C memory you would hope and expect that your data is finalized. So, the compiler should finalize the data if they is collected. Unfortunately I expect that we need a precise GC for that? IMO the current behaviour is unexpected and bug prone. As _workaround_ it would be helpful if destroy would work that way, but currently it doesn't.

Somewhat of a duplicate of issue #9335.

Since 2.067 the array is getting finalized. Since 2.068 so is the associative array. Note, however, that destroy() doesn't destruct individual elements, but there's a separate issue for that (issue 12274).