| // Test macro preservation in C++20 Header Units. |
| |
| // RUN: rm -rf %t |
| // RUN: mkdir -p %t |
| // RUN: split-file %s %t |
| // RUN: cd %t |
| |
| // RUN: %clang_cc1 -std=c++20 -emit-header-unit -xc++-user-header hu-01.h \ |
| // RUN: -o hu-01.pcm |
| |
| // RUN: %clang_cc1 -std=c++20 -module-file-info hu-01.pcm | \ |
| // RUN: FileCheck --check-prefix=CHECK-HU %s -DTDIR=%t |
| |
| // RUN: %clang_cc1 -std=c++20 -emit-header-unit -xc++-user-header hu-02.h \ |
| // RUN: -DFOO -fmodule-file=hu-01.pcm -o hu-02.pcm -Rmodule-import 2>&1 | \ |
| // RUN: FileCheck --check-prefix=CHECK-IMP %s -DTDIR=%t |
| |
| // RUN: %clang_cc1 -std=c++20 -module-file-info hu-02.pcm | \ |
| // RUN: FileCheck --check-prefix=CHECK-HU2 %s -DTDIR=%t |
| |
| // RUN: %clang_cc1 -std=c++20 -emit-module-interface importer-01.cpp \ |
| // RUN: -fmodule-file=hu-02.pcm -o B.pcm -verify |
| |
| // RUN: %clang_cc1 -std=c++20 -emit-module-interface importer-02.cpp \ |
| // RUN: -fmodule-file=hu-02.pcm -o C.pcm -Rmodule-import 2>&1 | \ |
| // RUN: FileCheck --check-prefix=CHECK-IMP-HU2 %s -DTDIR=%t |
| |
| //--- hu-01.h |
| #ifndef __GUARD |
| #define __GUARD |
| |
| int baz(int); |
| #define FORTYTWO 42 |
| |
| #define SHOULD_NOT_BE_DEFINED -1 |
| #undef SHOULD_NOT_BE_DEFINED |
| |
| #endif // __GUARD |
| // expected-no-diagnostics |
| |
| // CHECK-HU: ====== C++20 Module structure ====== |
| // CHECK-HU-NEXT: Header Unit './hu-01.h' is the Primary Module at index #1 |
| |
| //--- hu-02.h |
| export import "hu-01.h"; |
| #if !defined(FORTYTWO) || FORTYTWO != 42 |
| #error FORTYTWO missing in hu-02 |
| #endif |
| |
| #ifndef __GUARD |
| #error __GUARD missing in hu-02 |
| #endif |
| |
| #ifdef SHOULD_NOT_BE_DEFINED |
| #error SHOULD_NOT_BE_DEFINED is visible |
| #endif |
| |
| #define KAP 6174 |
| |
| #ifdef FOO |
| #define FOO_BRANCH(X) (X) + 1 |
| inline int foo(int x) { |
| if (x == FORTYTWO) |
| return FOO_BRANCH(x); |
| return FORTYTWO; |
| } |
| #else |
| #define BAR_BRANCH(X) (X) + 2 |
| inline int bar(int x) { |
| if (x == FORTYTWO) |
| return BAR_BRANCH(x); |
| return FORTYTWO; |
| } |
| #endif |
| |
| // CHECK-IMP: remark: importing module './hu-01.h' from 'hu-01.pcm' |
| // CHECK-HU2: ====== C++20 Module structure ====== |
| // CHECK-HU2-NEXT: Header Unit './hu-02.h' is the Primary Module at index #2 |
| // CHECK-HU2-NEXT: Exports: |
| // CHECK-HU2-NEXT: Header Unit './hu-01.h' is at index #1 |
| // expected-no-diagnostics |
| |
| //--- importer-01.cpp |
| export module B; |
| import "hu-02.h"; |
| |
| int success(int x) { |
| return foo(FORTYTWO + x + KAP); |
| } |
| |
| int fail(int x) { |
| return bar(FORTYTWO + x + KAP); // expected-error {{use of undeclared identifier 'bar'}} |
| // expected-note@* {{'baz' declared here}} |
| } |
| |
| //--- importer-02.cpp |
| export module C; |
| import "hu-02.h"; |
| |
| int success(int x) { |
| return foo(FORTYTWO + x + KAP); |
| } |
| |
| // CHECK-IMP-HU2: remark: importing module './hu-02.h' from 'hu-02.pcm' |
| // CHECK-IMP-HU2: remark: importing module './hu-01.h' into './hu-02.h' from '[[TDIR]]{{[/\\]}}hu-01.pcm' |