Introduce module attributes into the module map grammar, along with a

single attribute ("system") that allows us to mark a module as being a
"system" module. Each of the headers that makes up a system module is
considered to be a system header, so that we (for example) suppress
warnings there.

If a module is being inferred for a framework, and that framework
directory is within a system frameworks directory, infer it as a
system framework.

llvm-svn: 149143

2 files changed, 8 insertions, 1 deletions

diff --git a/clang/test/Modules/Inputs/NoUmbrella.framework/Headers/A.h b/clang/test/Modules/Inputs/NoUmbrella.framework/Headers/A.h
index 0de118c4f87..73f32bff402 100644
--- a/clang/test/Modules/Inputs/NoUmbrella.framework/Headers/A.h
+++ b/clang/test/Modules/Inputs/NoUmbrella.framework/Headers/A.h
@@ -1 +1,8 @@
 int no_umbrella_A;
+
+inline int has_warning(int x) {
+  if (x > 0)
+    return x;
+  // Note: warning here is suppressed because this module is considered a
+  // "system" module.
+}
diff --git a/clang/test/Modules/Inputs/NoUmbrella.framework/module.map b/clang/test/Modules/Inputs/NoUmbrella.framework/module.map
index 986cca995c1..4a4d9702c5f 100644
--- a/clang/test/Modules/Inputs/NoUmbrella.framework/module.map
+++ b/clang/test/Modules/Inputs/NoUmbrella.framework/module.map
@@ -1,4 +1,4 @@
-framework module NoUmbrella {
+framework module NoUmbrella [system] {
   umbrella "Headers"
   module * { }