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, 33 insertions, 0 deletions

diff --git a/clang/test/CodeCompletion/enum-switch-case-qualified.cpp b/clang/test/CodeCompletion/enum-switch-case-qualified.cpp
new file mode 100644
index 00000000000..fc1b0ea0757
--- /dev/null
+++ b/clang/test/CodeCompletion/enum-switch-case-qualified.cpp
@@ -0,0 +1,33 @@
+// RUN: clang-cc -fsyntax-only -code-completion-dump=1 %s -o - | FileCheck -check-prefix=CC1 %s &&
+// RUN: true
+
+namespace M {
+  
+namespace N {
+  struct C {
+    enum Color {
+      Red,
+      Orange,
+      Yellow,
+      Green,
+      Blue,
+      Indigo,
+      Violet
+    };
+  };
+}
+  
+}
+
+namespace M {
+  
+void test(enum N::C::Color color) {
+  switch (color) {
+      // CHECK-NEXT-CC1: Blue : 0 : N::C::Blue
+      // CHECK-NEXT-CC1: Green : 0 : N::C::Green
+      // CHECK-NEXT-CC1: Indigo : 0 : N::C::Indigo
+      // CHECK-NEXT-CC1: Orange : 0 : N::C::Orange
+      // CHECK-NEXT-CC1: Red : 0 : N::C::Red
+      // CHECK-NEXT-CC1: Violet : 0 : N::C::Violet
+      // CHECK-NEXT-CC1: Yellow : 0 : N::C::Yellow
+    case