https://issues.dlang.org/show_bug.cgi?id=18884
Issue ID: 18884 Summary: getSymbolsByUDA fails on AliasSeq members Product: D Version: D2 Hardware: All OS: All Status: NEW Severity: regression Priority: P1 Component: phobos Assignee: nob...@puremagic.com Reporter: elpenguin...@gmail.com The following code started failing after DMD 2.078: -------- unittest { import std.meta; import std.traits; struct X { alias A = AliasSeq!(ulong, uint); } alias x = getSymbolsByUDA!(X, X); } -------- DMD 2.080.0 produces this error: -------- /path/to/dmd.linux/dmd2/linux/bin64/../../src/phobos/std/traits.d(8377): Error: template `std.meta.Alias` does not match any template declaration /path/to/dmd.linux/dmd2/linux/bin64/../../src/phobos/std/traits.d(8194): Error: template instance `std.traits.getSymbolsByUDAImpl!(X, X, "A")` error instantiating onlineapp.d(9): instantiated from here: `getSymbolsByUDA!(X, X)` -------- The flawed line appears to be here: `alias member = Alias!(__traits(getMember, symbol, names[0]));` --