Vendor import of clang trunk r161861:

http://llvm.org/svn/llvm-project/cfe/trunk@161861

1 files changed, 51 insertions, 0 deletions

diff --git a/test/SemaCXX/switch-implicit-fallthrough-per-method.cpp b/test/SemaCXX/switch-implicit-fallthrough-per-method.cpp
new file mode 100644
index 0000000..7c52e51
--- /dev/null
+++ b/test/SemaCXX/switch-implicit-fallthrough-per-method.cpp
@@ -0,0 +1,51 @@
+// RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 -Wimplicit-fallthrough-per-function %s
+
+
+int fallthrough(int n) {
+  switch (n / 10) {
+    case 0:
+      n += 100;
+    case 1:  // expected-warning{{unannotated fall-through}} expected-note{{insert '[[clang::fallthrough]];' to silence this warning}} expected-note{{insert 'break;' to avoid fall-through}}
+      switch (n) {
+      case 111:
+        n += 111;
+        [[clang::fallthrough]];
+      case 112:
+        n += 112;
+      case 113:  // expected-warning{{unannotated fall-through}} expected-note{{insert '[[clang::fallthrough]];' to silence this warning}} expected-note{{insert 'break;' to avoid fall-through}}
+        n += 113;
+        break    ;
+      }
+  }
+  return n;
+}
+
+int fallthrough2(int n) {
+  switch (n / 10) {
+    case 0:
+      n += 100;
+    case 1:  // no warning, as we didn't "opt-in" for it in this method
+      switch (n) {
+      case 111:
+        n += 111;
+      case 112:  // no warning, as we didn't "opt-in" for it in this method
+        n += 112;
+      case 113:  // no warning, as we didn't "opt-in" for it in this method
+        n += 113;
+        break    ;
+      }
+  }
+  return n;
+}
+
+void unscoped(int n) {
+  switch (n % 2) {
+    case 0:
+      // FIXME: This should be typo-corrected, probably.
+      [[fallthrough]];
+    case 2: // expected-warning{{unannotated fall-through}} expected-note{{clang::fallthrough}} expected-note{{break;}}
+      [[clang::fallthrough]];
+    case 1:
+      break;
+  }
+}