| // { dg-additional-options "-fmodules-ts" } |
| // { dg-module-cmi !M } |
| |
| export module M; |
| |
| // Same as a linkage-1 except within an anonymous namespace; |
| // now these declarations cannot possibly be defined outside this TU, |
| // so we should error. |
| |
| namespace { |
| auto f() { |
| struct A {}; |
| return A{}; |
| } |
| decltype(f()) g(); // { dg-error "used but never defined" } |
| |
| struct {} s; |
| decltype(s) h(); // { dg-error "used but never defined" } |
| } |
| |
| export void use() { |
| g(); |
| h(); |
| } |
| |
| // Additionally, unnamed types have no linkage but are also TU-local, and thus |
| // cannot be exposed in a module interface unit. The non-TU-local entity 's' |
| // here is an exposure of this type. |
| struct {} s; // { dg-error "exposes TU-local entity" } |
