clang/test/Modules/implicit-built-Werror-using-W.cpp

   1 // Check that implicit modules builds give correct diagnostics, even when
   2 // reusing a module built with strong -Werror flags.
   3 //
   4 // Clear the caches.
   5 // RUN: rm -rf %t.cache %t-pragma.cache
   6 //
   7 // Build with -Werror, then with -W, and then with neither.
   8 // RUN: not %clang_cc1 -triple x86_64-apple-darwin16 -fsyntax-only -fmodules \
   9 // RUN:   -Werror=shorten-64-to-32 \
  10 // RUN:   -I%S/Inputs/implicit-built-Werror-using-W -fimplicit-module-maps \
  11 // RUN:   -fmodules-cache-path=%t.cache -x c++ %s 2>&1 \
  12 // RUN: | FileCheck %s -check-prefix=CHECK-ERROR
  13 // RUN: %clang_cc1 -triple x86_64-apple-darwin16 -fsyntax-only -fmodules \
  14 // RUN:   -Wshorten-64-to-32 \
  15 // RUN:   -I%S/Inputs/implicit-built-Werror-using-W -fimplicit-module-maps \
  16 // RUN:   -fdisable-module-hash \
  17 // RUN:   -fmodules-cache-path=%t.cache -x c++ %s 2>&1 \
  18 // RUN: | FileCheck %s -check-prefix=CHECK-WARN
  19 // RUN: %clang_cc1 -triple x86_64-apple-darwin16 -fsyntax-only -fmodules \
  20 // RUN:   -I%S/Inputs/implicit-built-Werror-using-W -fimplicit-module-maps \
  21 // RUN:   -fmodules-cache-path=%t.cache -x c++ %s 2>&1 \
  22 // RUN: | FileCheck %s -allow-empty
  23 //
  24 // In the presence of a warning pragma, build with -Werror and then without.
  25 // RUN: %clang_cc1 -triple x86_64-apple-darwin16 -fsyntax-only -fmodules \
  26 // RUN:   -DUSE_PRAGMA=1 -Werror=shorten-64-to-32 \
  27 // RUN:   -I%S/Inputs/implicit-built-Werror-using-W -fimplicit-module-maps \
  28 // RUN:   -fmodules-cache-path=%t-pragma.cache -x c++ %s 2>&1 \
  29 // RUN: | FileCheck %s -check-prefix=CHECK-WARN
  30 // RUN: %clang_cc1 -triple x86_64-apple-darwin16 -fsyntax-only -fmodules \
  31 // RUN:   -DUSE_PRAGMA=1 \
  32 // RUN:   -I%S/Inputs/implicit-built-Werror-using-W -fimplicit-module-maps \
  33 // RUN:   -fmodules-cache-path=%t-pragma.cache -x c++ %s 2>&1 \
  34 // RUN: | FileCheck %s -check-prefix=CHECK-WARN
  35
  36 // Test an error pragma.
  37 // RUN: not %clang_cc1 -triple x86_64-apple-darwin16 -fsyntax-only -fmodules \
  38 // RUN:   -DUSE_PRAGMA=2 -Wshorten-64-to-32 \
  39 // RUN:   -I%S/Inputs/implicit-built-Werror-using-W -fimplicit-module-maps \
  40 // RUN:   -fmodules-cache-path=%t-pragma.cache -x c++ %s 2>&1 \
  41 // RUN: | FileCheck %s -check-prefix=CHECK-ERROR
  42 #include <convert.h>
  43
  44 long long foo() { return convert<long long>(0); }
  45
  46 // CHECK-ERROR: error: implicit conversion
  47 // CHECK-WARN: warning: implicit conversion
  48 // CHECK-NOT: error: implicit conversion
  49 // CHECK-NOT: warning: implicit conversion