xref: /llvm-project/clang/test/Modules/cxx20-hu-02.cpp (revision 0687578728ea1985cbab0de14d4eeb4e89cdf210)
1 // Test generation and import of user and system C++20 Header Units.
2 
3 // RUN: rm -rf %t
4 // RUN: mkdir -p %t
5 // RUN: split-file %s %t
6 // RUN: cd %t
7 
8 // check user path
9 // RUN: %clang_cc1 -std=c++20 -emit-header-unit -I user \
10 // RUN: -xc++-user-header hu-01.h -o hu-01.pcm
11 
12 // RUN: %clang_cc1 -std=c++20 -module-file-info hu-01.pcm | \
13 // RUN: FileCheck --check-prefix=CHECK-HU %s -DTDIR=%t
14 
15 // RUN: %clang_cc1 -std=c++20 -emit-module-interface imp-hu-01.cpp \
16 // RUN:  -I user -fmodule-file=hu-01.pcm -o B.pcm -Rmodule-import \
17 // RUN: 2>&1  | FileCheck --check-prefix=CHECK-IMP %s -DTDIR=%t
18 
19 // check system path
20 // RUN: %clang_cc1 -std=c++20 -emit-header-unit -isystem system \
21 // RUN: -xc++-system-header hu-02.h -o hu-02.pcm
22 
23 // RUN: %clang_cc1 -std=c++20 -module-file-info hu-02.pcm | \
24 // RUN: FileCheck --check-prefix=CHECK-HU2 %s -DTDIR=%t
25 
26 // RUN: %clang_cc1 -std=c++20 -emit-module-interface imp-hu-02.cpp \
27 // RUN:  -isystem system -fmodule-file=hu-02.pcm -o C.pcm \
28 // RUN: -Rmodule-import 2>&1 | \
29 // RUN: FileCheck --check-prefix=CHECK-SYS-IMP %s -DTDIR=%t
30 
31 // check absolute path
32 // RUN: %clang_cc1 -std=c++20 -emit-header-unit  \
33 // RUN: -xc++-header-unit-header %t/hu-03.h -o hu-03.pcm
34 
35 // RUN: %clang_cc1 -std=c++20 -module-file-info hu-03.pcm | \
36 // RUN: FileCheck --check-prefix=CHECK-HU3 %s -DTDIR=%t
37 
38 //--- user/hu-01.h
39 int foo(int);
40 
41 // CHECK-HU:  ====== C++20 Module structure ======
42 // CHECK-HU-NEXT:  Header Unit 'user{{[/\\]}}hu-01.h' is the Primary Module at index #1
43 
44 //--- imp-hu-01.cpp
45 export module B;
46 import "hu-01.h";
47 
bar(int x)48 int bar(int x) {
49   return foo(x);
50 }
51 // CHECK-IMP: remark: importing module 'user{{[/\\]}}hu-01.h' from 'hu-01.pcm'
52 // expected-no-diagnostics
53 
54 //--- system/hu-02.h
55 int baz(int);
56 
57 // CHECK-HU2:  ====== C++20 Module structure ======
58 // CHECK-HU2-NEXT:  Header Unit 'system{{[/\\]}}hu-02.h' is the Primary Module at index #1
59 
60 //--- imp-hu-02.cpp
61 module;
62 import <hu-02.h>;
63 
64 export module C;
65 
bar(int x)66 int bar(int x) {
67   return baz(x);
68 }
69 // CHECK-SYS-IMP: remark: importing module 'system{{[/\\]}}hu-02.h' from 'hu-02.pcm'
70 // expected-no-diagnostics
71 
72 //--- hu-03.h
73 int curly(int);
74 
75 // CHECK-HU3:  ====== C++20 Module structure ======
76 // CHECK-HU3-NEXT:  Header Unit '[[TDIR]]/hu-03.h' is the Primary Module at index #1
77 // expected-no-diagnostics
78