clang/test/Modules/macro-ambiguity.cpp

   1 // RUN: rm -rf %t
   2 // RUN: cd %S
   3 //
   4 // RUN: %clang_cc1 -fmodules -x c++ -fmodules-cache-path=%t \
   5 // RUN:   -v \
   6 // RUN:   -iquote Inputs/macro-ambiguity/a/quote \
   7 // RUN:   -isystem Inputs/macro-ambiguity/a/system \
   8 // RUN:   -fno-implicit-modules \
   9 // RUN:   -fmodule-map-file-home-is-cwd \
  10 // RUN:   -emit-module -fmodule-name=a -o %t/a.pcm \
  11 // RUN:   Inputs/macro-ambiguity/module.modulemap
  12 //
  13 // RUN: %clang_cc1 -fmodules -x c++ -fmodules-cache-path=%t \
  14 // RUN:   -v \
  15 // RUN:   -iquote Inputs/macro-ambiguity/b/quote \
  16 // RUN:   -isystem Inputs/macro-ambiguity/b/system \
  17 // RUN:   -fno-implicit-modules \
  18 // RUN:   -fmodule-map-file-home-is-cwd \
  19 // RUN:   -emit-module -fmodule-name=b -o %t/b.pcm \
  20 // RUN:   Inputs/macro-ambiguity/module.modulemap
  21 //
  22 // RUN: %clang_cc1 -fmodules -x c++ -fmodules-cache-path=%t \
  23 // RUN:   -v \
  24 // RUN:   -iquote Inputs/macro-ambiguity/c/quote \
  25 // RUN:   -isystem Inputs/macro-ambiguity/c/system \
  26 // RUN:   -fno-implicit-modules \
  27 // RUN:   -fmodule-map-file-home-is-cwd \
  28 // RUN:   -emit-module -fmodule-name=c -o %t/c.pcm \
  29 // RUN:   Inputs/macro-ambiguity/module.modulemap
  30 //
  31 // RUN: %clang_cc1 -fmodules -x c++ -fmodules-cache-path=%t \
  32 // RUN:   -v \
  33 // RUN:   -iquote Inputs/macro-ambiguity/d/quote \
  34 // RUN:   -isystem Inputs/macro-ambiguity/d/system \
  35 // RUN:   -fno-implicit-modules \
  36 // RUN:   -fmodule-map-file-home-is-cwd \
  37 // RUN:   -emit-module -fmodule-name=d -o %t/d.pcm \
  38 // RUN:   Inputs/macro-ambiguity/module.modulemap
  39 //
  40 // RUN: %clang_cc1 -fmodules -x c++ -fmodules-cache-path=%t \
  41 // RUN:   -v \
  42 // RUN:   -iquote Inputs/macro-ambiguity/a/quote \
  43 // RUN:   -isystem Inputs/macro-ambiguity/a/system \
  44 // RUN:   -iquote Inputs/macro-ambiguity/b/quote \
  45 // RUN:   -isystem Inputs/macro-ambiguity/b/system \
  46 // RUN:   -iquote Inputs/macro-ambiguity/c/quote \
  47 // RUN:   -isystem Inputs/macro-ambiguity/c/system \
  48 // RUN:   -iquote Inputs/macro-ambiguity/d/quote \
  49 // RUN:   -isystem Inputs/macro-ambiguity/d/system \
  50 // RUN:   -iquote Inputs/macro-ambiguity/e/quote \
  51 // RUN:   -isystem Inputs/macro-ambiguity/e/system \
  52 // RUN:   -fno-implicit-modules \
  53 // RUN:   -fmodule-map-file-home-is-cwd \
  54 // RUN:   -fmodule-map-file=Inputs/macro-ambiguity/module.modulemap \
  55 // RUN:   -fmodule-file=%t/a.pcm \
  56 // RUN:   -fmodule-file=%t/b.pcm \
  57 // RUN:   -fmodule-file=%t/c.pcm \
  58 // RUN:   -fmodule-file=%t/d.pcm \
  59 // RUN:   -Wambiguous-macro -verify macro-ambiguity.cpp
  60 //
  61 // RUN: %clang_cc1 -fmodules -x c++ -fmodules-cache-path=%t \
  62 // RUN:   -v -fmodules-local-submodule-visibility \
  63 // RUN:   -iquote Inputs/macro-ambiguity/a/quote \
  64 // RUN:   -isystem Inputs/macro-ambiguity/a/system \
  65 // RUN:   -iquote Inputs/macro-ambiguity/b/quote \
  66 // RUN:   -isystem Inputs/macro-ambiguity/b/system \
  67 // RUN:   -iquote Inputs/macro-ambiguity/c/quote \
  68 // RUN:   -isystem Inputs/macro-ambiguity/c/system \
  69 // RUN:   -iquote Inputs/macro-ambiguity/d/quote \
  70 // RUN:   -isystem Inputs/macro-ambiguity/d/system \
  71 // RUN:   -iquote Inputs/macro-ambiguity/e/quote \
  72 // RUN:   -isystem Inputs/macro-ambiguity/e/system \
  73 // RUN:   -fno-implicit-modules \
  74 // RUN:   -fmodule-map-file-home-is-cwd \
  75 // RUN:   -fmodule-map-file=Inputs/macro-ambiguity/module.modulemap \
  76 // RUN:   -fmodule-file=%t/a.pcm \
  77 // RUN:   -fmodule-file=%t/b.pcm \
  78 // RUN:   -fmodule-file=%t/c.pcm \
  79 // RUN:   -fmodule-file=%t/d.pcm \
  80 // RUN:   -Wambiguous-macro -verify macro-ambiguity.cpp
  81
  82 // Include the textual headers first to maximize the ways in which things can
  83 // become ambiguous.
  84 #include "e_quote.h"
  85 #include <e_system.h>
  86
  87 #include "a_quote.h"
  88 #include <a_system.h>
  89 #include "b_quote.h"
  90 #include <b_system.h>
  91 #include "c_quote.h"
  92 #include <c_system.h>
  93 #include "d_quote.h"
  94 #include <d_system.h>
  95
  96 int test(int x) {
  97   // We expect to get warnings for all of the quoted includes but none of the
  98   // system includes here because the first module is a non-system module and
  99   // the quote macros come from non-system-headers.
 100   x = FOO1_QUOTE(x); // expected-warning {{ambiguous expansion of macro}}
 101   // expected-note@Inputs/macro-ambiguity/c/quote/c_quote.h:4 {{expanding this definition}}
 102   // expected-note@Inputs/macro-ambiguity/a/quote/a_quote.h:4 {{other definition}}
 103
 104   x = FOO1_SYSTEM(x);
 105
 106   x = BAR1_QUOTE(x); // expected-warning {{ambiguous expansion of macro}}
 107   // expected-note@Inputs/macro-ambiguity/d/quote/d_quote.h:4 {{expanding this definition}}
 108   // expected-note@Inputs/macro-ambiguity/a/quote/a_quote.h:5 {{other definition}}
 109
 110   x = BAR1_SYSTEM(x);
 111
 112   x = BAZ1_QUOTE(x); // expected-warning {{ambiguous expansion of macro}}
 113   // expected-note@Inputs/macro-ambiguity/a/quote/a_quote.h:6 {{expanding this definition}}
 114   // expected-note@Inputs/macro-ambiguity/e/quote/e_quote.h:4 {{other definition}}
 115
 116   x = BAZ1_SYSTEM(x);
 117
 118   // Here, we don't even warn on bar because in that cas both b and d are
 119   // system modules and so the use of non-system headers is irrelevant.
 120   x = FOO2_QUOTE(x); // expected-warning {{ambiguous expansion of macro}}
 121   // expected-note@Inputs/macro-ambiguity/c/quote/c_quote.h:5 {{expanding this definition}}
 122   // expected-note@Inputs/macro-ambiguity/b/quote/b_quote.h:4 {{other definition}}
 123
 124   x = FOO2_SYSTEM(x);
 125
 126   x = BAR2_QUOTE(x);
 127
 128   x = BAR2_SYSTEM(x);
 129
 130   x = BAZ2_QUOTE(x); // expected-warning {{ambiguous expansion of macro}}
 131   // expected-note@Inputs/macro-ambiguity/b/quote/b_quote.h:6 {{expanding this definition}}
 132   // expected-note@Inputs/macro-ambiguity/e/quote/e_quote.h:5 {{other definition}}
 133
 134   x = BAZ2_SYSTEM(x);
 135   return x;
 136 }