xref: /llvm-project/clang/test/Modules/odr_hash-enum.c (revision 6d7d8e5b59cb0a66765ccf657814ae6039e27931)
1 // Clear and create directories
2 // RUN: rm -rf %t
3 // RUN: mkdir %t
4 // RUN: mkdir %t/cache
5 // RUN: mkdir %t/Inputs
6 
7 // Build first header file
8 // RUN: echo "#define FIRST" >> %t/Inputs/first.h
9 // RUN: cat %s               >> %t/Inputs/first.h
10 
11 // Build second header file
12 // RUN: echo "#define SECOND" >> %t/Inputs/second.h
13 // RUN: cat %s                >> %t/Inputs/second.h
14 
15 // Test that each header can compile
16 // RUN: %clang_cc1 -fsyntax-only -x c %t/Inputs/first.h
17 // RUN: %clang_cc1 -fsyntax-only -x c %t/Inputs/second.h
18 
19 // Build module map file
20 // RUN: echo "module FirstModule {"     >> %t/Inputs/module.modulemap
21 // RUN: echo "    header \"first.h\""   >> %t/Inputs/module.modulemap
22 // RUN: echo "}"                        >> %t/Inputs/module.modulemap
23 // RUN: echo "module SecondModule {"    >> %t/Inputs/module.modulemap
24 // RUN: echo "    header \"second.h\""  >> %t/Inputs/module.modulemap
25 // RUN: echo "}"                        >> %t/Inputs/module.modulemap
26 
27 // Run test
28 // RUN: %clang_cc1 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t/cache -x c -I%t/Inputs -verify %s
29 
30 #if !defined(FIRST) && !defined(SECOND)
31 #include "first.h"
32 #include "second.h"
33 #endif
34 
35 #if defined(FIRST)
36 enum DifferentEnumConstants { kDifferentEnumConstantsValueFirst };
37 #elif defined(SECOND)
38 enum DifferentEnumConstants { kDifferentEnumConstantsValueSecond };
39 #else
40 enum DifferentEnumConstants differentEnumConstants;
41 // expected-error@second.h:* {{'kDifferentEnumConstantsValueSecond' from module 'SecondModule' is not present in definition of 'enum DifferentEnumConstants' in module 'FirstModule'}}
42 // expected-note@first.h:* {{definition has no member 'kDifferentEnumConstantsValueSecond'}}
43 #endif
44 
45 #if defined(FIRST)
46 enum DifferentEnumValues { kDifferentEnumValue = 0 };
47 #elif defined(SECOND)
48 enum DifferentEnumValues { kDifferentEnumValue = 1 };
49 #else
50 enum DifferentEnumValues differentEnumValue;
51 // expected-error@first.h:* {{'DifferentEnumValues' has different definitions in different modules; definition in module 'FirstModule' first difference is 1st element 'kDifferentEnumValue' has an initializer}}
52 // expected-note@second.h:* {{but in 'SecondModule' found 1st element 'kDifferentEnumValue' has different initializer}}
53 #endif
54 
55 #if defined(FIRST)
56 enum {
57     kAnonymousEnumValueFirst = 1,
58 };
59 #elif defined(SECOND)
60 enum {
61     kAnonymousEnumValueSecond = 2,
62 };
63 #else
64 // Anonymous enums don't have to match, no errors expected.
65 int anonymousEnumValue = kAnonymousEnumValueFirst + kAnonymousEnumValueSecond;
66 #endif
67 
68 // Keep macros contained to one file.
69 #ifdef FIRST
70 #undef FIRST
71 #endif
72 
73 #ifdef SECOND
74 #undef SECOND
75 #endif
76