Bug 21039 – `alias this` returns 'null' for ref types when put into array initializer

class Inner {} class Outer { Inner inner; alias inner this; this(Inner i) { inner = i; } } void main() { auto inner = new Inner; auto outer = new Outer(new Inner); Inner[] inners = [inner, outer]; assert(inners[0], "first element is null"); assert(inners[1], "second element is null"); } --- Output from https://run.dlang.io/is/gfy34l with all d compilers selected Up to 2.083.1: Success and no output 2.084.1: Failure with output: ----- [email protected](16): second element is null ---------------- ??:? _d_assert_msg [0x429018] onlineapp.d:16 _Dmain [0x427fbb] ----- 2.085.1: Failure with output: ----- [email protected](16): second element is null ---------------- ??:? _d_assert_msg [0x42c5ca] onlineapp.d:16 _Dmain [0x42b53e] ----- 2.086.1: Failure with output: ----- [email protected](16): second element is null ---------------- ??:? _d_assert_msg [0x42e27a] onlineapp.d:16 _Dmain [0x42d1ee] ----- 2.087.1: Failure with output: ----- [email protected](16): second element is null ---------------- ??:? _d_assert_msg [0x43040a] onlineapp.d:16 _Dmain [0x42f23e] ----- Since 2.088.0: Failure with output: ----- [email protected](16): second element is null ---------------- ??:? _d_assert_msg [0x430352] onlineapp.d:16 _Dmain [0x42f2ce] ----- --- This also appears on dmd v2.092.0 / linux The issue does appear when the inner type is a class or a pointer. Value types work fine. Remotely related but not to be confused with: Issue 19782

Digger blames this PR: https://github.com/dlang/dmd/pull/8712

@BorisCarvajal created dlang/dmd pull request #13277 "Fix Issue 21039 - `alias this` returns 'null' for ref types when put into array initializer" fixing this issue: - Fix Issue 21039 - `alias this` returns 'null' for ref types when put into array initializer https://github.com/dlang/dmd/pull/13277

dlang/dmd pull request #13277 "Fix Issue 21039 - `alias this` returns 'null' for ref types when put into array initializer" was merged into stable: - 763784c1f2a3a2329facbbbceba6477a51a0fe7d by Boris Carvajal: Fix Issue 21039 - `alias this` returns 'null' for ref types when put into array initializer https://github.com/dlang/dmd/pull/13277

dlang/dmd pull request #13279 "Merge `stable` into `master`" was merged into master: - 904fde46c4bad53ae65d72225d9b5f0c9beb6135 by Boris Carvajal: Fix Issue 21039 - `alias this` returns 'null' for ref types when put into array initializer https://github.com/dlang/dmd/pull/13279