Implement support for wildcard exports in modules, allowing a module

to re-export anything that it imports. This opt-in feature makes a
module behave more like a header, because it can be used to re-export
the transitive closure of a (sub)module's dependencies.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145811 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 25 insertions, 0 deletions

diff --git a/test/Modules/wildcard-submodule-exports.cpp b/test/Modules/wildcard-submodule-exports.cpp
new file mode 100644
index 0000000000..b892acbe59
--- /dev/null
+++ b/test/Modules/wildcard-submodule-exports.cpp
@@ -0,0 +1,25 @@
+// RUN: rm -rf %t
+// RUN: %clang_cc1 -fmodule-cache-path %t -fauto-module-import -I %S/Inputs/wildcard-submodule-exports %s -verify
+
+__import_module__ C.One;
+
+void test_C_One() {
+  int *A1_ptr = A1;
+  long *C1_ptr = C1;
+  (void)B1; // expected-error{{use of undeclared identifier 'B1'}}
+}
+
+__import_module__ C.Two;
+
+void test_C_Two() {
+  unsigned int *A2_ptr = A2;
+  unsigned short *B2_ptr = B2;
+  unsigned long *C2_ptr = C2;
+}
+
+__import_module__ B.One;
+
+void test_B_One() {
+  short *B1_ptr = B1;
+}
+