1 // RUN: rm -rf %t
2 // RUN: %clang_cc1 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -x c++ -I%S/Inputs/merge-using-decls -verify %s -DORDER=1
3 // RUN: %clang_cc1 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -x c++ -I%S/Inputs/merge-using-decls -verify -std=c++98 %s -DORDER=1
4 // RUN: %clang_cc1 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -x c++ -I%S/Inputs/merge-using-decls -verify -std=c++11 %s -DORDER=1
5 // RUN: %clang_cc1 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -x c++ -I%S/Inputs/merge-using-decls -verify -std=c++17 %s -DORDER=1
6 // RUN: %clang_cc1 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -x c++ -I%S/Inputs/merge-using-decls -verify %s -DORDER=2
7 // RUN: %clang_cc1 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -x c++ -I%S/Inputs/merge-using-decls -verify -std=c++98 %s -DORDER=2
8 // RUN: %clang_cc1 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -x c++ -I%S/Inputs/merge-using-decls -verify -std=c++11 %s -DORDER=2
9 // RUN: %clang_cc1 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -x c++ -I%S/Inputs/merge-using-decls -verify -std=c++17 %s -DORDER=2
10
11 #if ORDER == 1
12 #include "a.h"
13 #include "b.h"
14 #else
15 #include "b.h"
16 #include "a.h"
17 #endif
18
19 struct Y {
20 int value; // expected-note 0-1{{target of using}}
21 typedef int type; // expected-note 0-1{{target of using}}
22 };
23
Use()24 template<typename T> int Use() {
25 int k = T().v + T().value; // expected-note 0-2{{instantiation of}}
26 typedef typename T::type I;
27 typedef typename T::t I;
28 typedef int I;
29 return k;
30 }
31
UseAll()32 template<typename T> int UseAll() {
33 #if __cplusplus <= 199711L // C++11 does not allow access declarations
34 return Use<C<T> >() + Use<D<T> >() + Use<E<T> >() + Use<F<T> >(); // expected-note 0-2{{instantiation of}}
35 #else
36 return Use<C<T> >() + Use<D<T> >() + Use<F<T> >(); // expected-note 0-2{{instantiation of}}
37 #endif
38 }
39
40 template int UseAll<YA>();
41 template int UseAll<YB>();
42 template int UseAll<Y>();
43
44 #if __cplusplus >= 201702L
use_g(Q q)45 void use_g(Q q) {
46 q.f(q); // expected-error {{ambiguous}}
47 #if ORDER == 1
48 // expected-note@a.h:* {{candidate function}}
49 // expected-note@a.h:* {{candidate function}}
50 #else
51 // expected-note@b.h:* {{candidate function}}
52 // expected-note@b.h:* {{candidate function}}
53 #endif
54 }
55 #endif
56
57 // Which of these two sets of diagnostics is chosen is not important. It's OK
58 // if this varies with ORDER, but it must be consistent across runs.
59 #if ORDER == 1
60 // Here, we're instantiating the definition from 'A' and merging the definition
61 // from 'B' into it.
62
63 #if __cplusplus <= 199711L // C++11 does not allow access declarations
64 // expected-error@b.h:* {{'E::value' from module 'B' is not present in definition of 'E<T>' in module 'A'}}
65 // expected-error@b.h:* {{'E::v' from module 'B' is not present in definition of 'E<T>' in module 'A'}}
66 #endif
67
68 // expected-error@b.h:* {{'F::type' from module 'B' is not present in definition of 'F<T>' in module 'A'}}
69 // expected-error@b.h:* {{'F::t' from module 'B' is not present in definition of 'F<T>' in module 'A'}}
70 // expected-error@b.h:* {{'F::value' from module 'B' is not present in definition of 'F<T>' in module 'A'}}
71 // expected-error@b.h:* {{'F::v' from module 'B' is not present in definition of 'F<T>' in module 'A'}}
72
73 // expected-note@a.h:* +{{does not match}}
74 #else
75 // Here, we're instantiating the definition from 'B' and merging the definition
76 // from 'A' into it.
77
78 // expected-error@a.h:* {{'D::type' from module 'A' is not present in definition of 'D<T>' in module 'B'}}
79 // expected-error@a.h:* {{'D::value' from module 'A' is not present in definition of 'D<T>' in module 'B'}}
80 // expected-error@b.h:* 2{{'typename' keyword used on a non-type}}
81 // expected-error@b.h:* 2{{dependent using declaration resolved to type without 'typename'}}
82
83 #if __cplusplus <= 199711L // C++11 does not allow access declarations
84 // expected-error@a.h:* {{'E::type' from module 'A' is not present in definition of 'E<T>' in module 'B'}}
85 // expected-error@a.h:* {{'E::t' from module 'A' is not present in definition of 'E<T>' in module 'B'}}
86 // expected-error@a.h:* {{'E::value' from module 'A' is not present in definition of 'E<T>' in module 'B'}}
87 // expected-error@a.h:* {{'E::v' from module 'A' is not present in definition of 'E<T>' in module 'B'}}
88 // expected-note@b.h:* 2{{definition has no member}}
89 #endif
90
91
92 // expected-error@a.h:* {{'F::type' from module 'A' is not present in definition of 'F<T>' in module 'B'}}
93 // expected-error@a.h:* {{'F::t' from module 'A' is not present in definition of 'F<T>' in module 'B'}}
94 // expected-error@a.h:* {{'F::value' from module 'A' is not present in definition of 'F<T>' in module 'B'}}
95 // expected-error@a.h:* {{'F::v' from module 'A' is not present in definition of 'F<T>' in module 'B'}}
96
97 // expected-note@b.h:* +{{does not match}}
98 // expected-note@b.h:* +{{target of using}}
99 #endif
100