Enhance "case" code completion in C++ to suggest qualified names for

enumerators when either the user intentionally wrote a qualified name
(in which case we just use that nested-name-specifier to match
the user's code) or when this is the first "case" statement and we
need a qualified name to refer to an enumerator in a different scope.

llvm-svn: 82474

1 files changed, 29 insertions, 0 deletions

diff --git a/clang/test/CodeCompletion/enum-switch-case.cpp b/clang/test/CodeCompletion/enum-switch-case.cpp
new file mode 100644
index 00000000000..49b33c830af
--- /dev/null
+++ b/clang/test/CodeCompletion/enum-switch-case.cpp
@@ -0,0 +1,29 @@
+// RUN: clang-cc -fsyntax-only -code-completion-dump=1 %s -o - | FileCheck -check-prefix=CC1 %s &&
+// RUN: true
+
+namespace N {
+  enum Color {
+    Red,
+    Orange,
+    Yellow,
+    Green,
+    Blue,
+    Indigo,
+    Violet
+  };
+}
+
+void test(enum N::Color color) {
+  switch (color) {
+    case N::Red:
+      break;
+      
+    case N::Yellow:
+      break;
+      
+      // CHECK-CC1: Blue : 0 : N::Blue
+      // CHECK-NEXT-CC1: Green : 0 : N::Green
+      // CHECK-NEXT-CC1: Indigo : 0 : N::Indigo
+      // CHECK-NEXT-CC1: Orange : 0 : N::Orange
+      // CHECK-NEXT-CC1: Violet : 0 : N::Violet
+    case