https://issues.dlang.org/show_bug.cgi?id=18430
Issue ID: 18430 Summary: isSame is wrong for non global lambdas Product: D Version: D2 Hardware: All OS: All Status: NEW Severity: regression Priority: P1 Component: dmd Assignee: nob...@puremagic.com Reporter: ilyayaroshe...@gmail.com template Alias(alias a) { alias Alias = a; } auto foo() { auto scale = 4; alias edentity = a => a * scale; static assert(__traits(isSame, Alias!edentity, edentity)); // fails in dmd-nightly } Mir Algorithm uses this technique a lot to reduce template bloat. It does not compiles with dmd-nightly now, see CI https://travis-ci.org/libmir/mir-algorithm/jobs/339855290 --