1 // RUN: rm -rf %t
2 // RUN: mkdir -p %t
3 // RUN: echo 'export module x; export int a, b;' > %t/x.cppm
4 // RUN: echo 'export module x.y; export int c;' > %t/x.y.cppm
5 // RUN: echo 'export module a.b; export int d;' > %t/a.b.cppm
6 //
7 // RUN: %clang_cc1 -std=c++1z -fmodules-ts -emit-module-interface %t/x.cppm -o %t/x.pcm
8 // RUN: %clang_cc1 -std=c++1z -fmodules-ts -emit-module-interface -fmodule-file=%t/x.pcm %t/x.y.cppm -o %t/x.y.pcm
9 // RUN: %clang_cc1 -std=c++1z -fmodules-ts -emit-module-interface %t/a.b.cppm -o %t/a.b.pcm
10 //
11 // RUN: %clang_cc1 -std=c++1z -fmodules-ts -I%t -fmodule-file=%t/x.y.pcm -fmodule-file=%t/a.b.pcm -verify %s \
12 // RUN:            -DMODULE_NAME=z -DINTERFACE
13 // RUN: %clang_cc1 -std=c++1z -fmodules-ts -I%t -fmodule-file=%t/x.y.pcm -fmodule-file=%t/a.b.pcm -verify %s \
14 // RUN:            -DMODULE_NAME=a.b
15 // RUN: %clang_cc1 -std=c++1z -fmodules-ts -I%t -fmodule-file=%t/x.y.pcm -fmodule-file=%t/a.b.pcm -verify %s \
16 // RUN:            -DMODULE_X -DMODULE_NAME=x
17 
18 #ifdef INTERFACE
19 export
20 #endif
21 module MODULE_NAME;
22 
23 int use_1 = a;
24 #if !MODULE_X
25 // expected-error@-2 {{declaration of 'a' must be imported from module 'x' before it is required}}
26 // [email protected]:1 {{here}}
27 #endif
28 
29 import x;
30 
31 int use_2 = b; // ok
32 
33 // There is no relation between module x and module x.y.
34 int use_3 = c; // expected-error {{declaration of 'c' must be imported from module 'x.y'}}
35                // [email protected]:1 {{here}}
36 
37 import x [[]];
38 import x [[foo]]; // expected-warning {{unknown attribute 'foo' ignored}}
39 import x [[noreturn]]; // expected-error {{'noreturn' attribute cannot be applied to a module import}}
40 import x [[blarg::noreturn]]; // expected-warning {{unknown attribute 'noreturn' ignored}}
41 
42 import x.y;
43 import a.b; // Does not imply existence of module a.
44 import x.; // expected-error {{expected a module name after 'import'}}
45 import .x; // expected-error {{expected a module name after 'import'}}
46 
47 int use_4 = c; // ok
48 
49 import blarg; // expected-error {{module 'blarg' not found}}
50