1 files changed, 29 insertions, 0 deletions
diff --git a/clang/test/Modules/submodules.cpp b/clang/test/Modules/submodules.cpp
new file mode 100644
index 0000000..60d5ae0
--- /dev/null
+++ b/clang/test/Modules/submodules.cpp
@@ -0,0 +1,29 @@
+// RUN: rm -rf %t
+// RUN: %clang_cc1 -x objective-c++ -fmodule-cache-path %t -fmodules -I %S/Inputs/submodules %s -verify
+// FIXME: When we have a syntax for modules in C++, use that.
+
+@__experimental_modules_import std.vector;
+
+vector<int> vi;
+
+// Note: remove_reference is not visible yet.
+remove_reference<int&>::type *int_ptr = 0; // expected-error{{unknown type name 'remove_reference'}} \
+// expected-error{{expected unqualified-id}}
+
+@__experimental_modules_import std.typetraits; // expected-error{{no submodule named 'typetraits' in module 'std'; did you mean 'type_traits'?}}
+
+vector<float> vf;
+remove_reference<int&>::type *int_ptr2 = 0;
+
+@__experimental_modules_import std.vector.compare; // expected-error{{no submodule named 'compare' in module 'std.vector'}}
+
+@__experimental_modules_import std; // import everything in 'std'
+
+// hash_map still isn't available.
+hash_map<int, float> ints_to_floats; // expected-error{{unknown type name 'hash_map'}} \
+// expected-error{{expected unqualified-id}}
+
+@__experimental_modules_import std.hash_map;
+
+hash_map<int, float> ints_to_floats2;
+