Add a printing policy flag to suppress printing "<anonymous>::" prior

to types. Enable this flag for code completion, where knowing whether
something is in an anonymous or inline namespace is actually not
useful, since you don't have to type it anyway. Fixes
<rdar://problem/10208818>.

llvm-svn: 143599

5 files changed, 20 insertions, 5 deletions

diff --git a/clang/include/clang/AST/PrettyPrinter.h b/clang/include/clang/AST/PrettyPrinter.h
index 2bdd8d3f4bc..2e34dc8cbd5 100644
--- a/clang/include/clang/AST/PrettyPrinter.h
+++ b/clang/include/clang/AST/PrettyPrinter.h
@@ -36,7 +36,7 @@ struct PrintingPolicy {
   PrintingPolicy(const LangOptions &LO)
     : Indentation(2), LangOpts(LO), SuppressSpecifiers(false),
       SuppressTagKeyword(false), SuppressTag(false), SuppressScope(false),
-      SuppressInitializers(false),
+      SuppressUnwrittenScope(false), SuppressInitializers(false),
       Dump(false), ConstantArraySizeAsWritten(false),
       AnonymousTagLocations(true), SuppressStrongLifetime(false),
       Bool(LO.Bool) { }
@@ -86,6 +86,10 @@ struct PrintingPolicy {
   /// \brief Suppresses printing of scope specifiers.
   bool SuppressScope : 1;
 
+  /// \brief Suppress printing parts of scope specifiers that don't need
+  /// to be written, e.g., for inline or anonymous namespaces.
+  bool SuppressUnwrittenScope : 1;
+  
   /// \brief Suppress printing of variable initializers.
   ///
   /// This flag is used when printing the loop variable in a for-range
diff --git a/clang/lib/AST/NestedNameSpecifier.cpp b/clang/lib/AST/NestedNameSpecifier.cpp
index 1ff2e7177b3..858cf12dc66 100644
--- a/clang/lib/AST/NestedNameSpecifier.cpp
+++ b/clang/lib/AST/NestedNameSpecifier.cpp
@@ -229,6 +229,9 @@ NestedNameSpecifier::print(raw_ostream &OS,
     break;
 
   case Namespace:
+    if (getAsNamespace()->isAnonymousNamespace())
+      return;
+      
     OS << getAsNamespace()->getName();
     break;
 
diff --git a/clang/lib/AST/TypePrinter.cpp b/clang/lib/AST/TypePrinter.cpp
index fb7b918ca2f..ec6cb48bf86 100644
--- a/clang/lib/AST/TypePrinter.cpp
+++ b/clang/lib/AST/TypePrinter.cpp
@@ -600,6 +600,9 @@ void TypePrinter::AppendScope(DeclContext *DC, std::string &Buffer) {
   unsigned OldSize = Buffer.size();
 
   if (NamespaceDecl *NS = dyn_cast<NamespaceDecl>(DC)) {
+    if (Policy.SuppressUnwrittenScope && 
+        (NS->isAnonymousNamespace() || NS->isInline()))
+      return;
     if (NS->getIdentifier())
       Buffer += NS->getNameAsString();
     else
@@ -620,6 +623,8 @@ void TypePrinter::AppendScope(DeclContext *DC, std::string &Buffer) {
       Buffer += Typedef->getIdentifier()->getName();
     else if (Tag->getIdentifier())
       Buffer += Tag->getIdentifier()->getName();
+    else
+      return;
   }
 
   if (Buffer.size() != OldSize)
diff --git a/clang/lib/Sema/SemaCodeComplete.cpp b/clang/lib/Sema/SemaCodeComplete.cpp
index 4066a06e529..f964ec14836 100644
--- a/clang/lib/Sema/SemaCodeComplete.cpp
+++ b/clang/lib/Sema/SemaCodeComplete.cpp
@@ -1381,6 +1381,7 @@ static PrintingPolicy getCompletionPrintingPolicy(Sema &S) {
   PrintingPolicy Policy = S.getPrintingPolicy();
   Policy.AnonymousTagLocations = false;
   Policy.SuppressStrongLifetime = true;
+  Policy.SuppressUnwrittenScope = true;
   return Policy;
 }
 
diff --git a/clang/test/Index/complete-cxx-inline-methods.cpp b/clang/test/Index/complete-cxx-inline-methods.cpp
index 48fa8683af4..d441972dd6f 100644
--- a/clang/test/Index/complete-cxx-inline-methods.cpp
+++ b/clang/test/Index/complete-cxx-inline-methods.cpp
@@ -1,3 +1,4 @@
+namespace {
 class MyCls {
   void in_foo() {
     vec.x = 0;
@@ -20,9 +21,10 @@ private:
   int value;
   MyCls *object;
 };
+}
 
-// RUN: c-index-test -code-completion-at=%s:3:9 %s | FileCheck %s
-// RUN: c-index-test -code-completion-at=%s:12:7 %s | FileCheck %s
+// RUN: c-index-test -code-completion-at=%s:4:9 %s | FileCheck %s
+// RUN: c-index-test -code-completion-at=%s:13:7 %s | FileCheck %s
 // CHECK:      CXXMethod:{ResultType MyCls::Vec &}{TypedText operator=}{LeftParen (}{Placeholder const MyCls::Vec &}{RightParen )} (34)
 // CHECK-NEXT: StructDecl:{TypedText Vec}{Text ::} (75)
 // CHECK-NEXT: FieldDecl:{ResultType int}{TypedText x} (35)
@@ -32,11 +34,11 @@ private:
 // CHECK-NEXT: Dot member access
 // CHECK-NEXT: Container Kind: StructDecl
 
-// RUN: c-index-test -code-completion-at=%s:17:41 %s | FileCheck -check-prefix=CHECK-CTOR-INIT %s
+// RUN: c-index-test -code-completion-at=%s:18:41 %s | FileCheck -check-prefix=CHECK-CTOR-INIT %s
 // CHECK-CTOR-INIT: NotImplemented:{TypedText MyCls}{LeftParen (}{Placeholder args}{RightParen )} (7)
 // CHECK-CTOR-INIT: MemberRef:{TypedText object}{LeftParen (}{Placeholder args}{RightParen )} (35)
 // CHECK-CTOR-INIT: MemberRef:{TypedText value}{LeftParen (}{Placeholder args}{RightParen )} (35)
-// RUN: c-index-test -code-completion-at=%s:17:55 %s | FileCheck -check-prefix=CHECK-CTOR-INIT-2 %s
+// RUN: c-index-test -code-completion-at=%s:18:55 %s | FileCheck -check-prefix=CHECK-CTOR-INIT-2 %s
 // CHECK-CTOR-INIT-2-NOT: NotImplemented:{TypedText MyCls}{LeftParen (}{Placeholder args}{RightParen )}
 // CHECK-CTOR-INIT-2: MemberRef:{TypedText object}{LeftParen (}{Placeholder args}{RightParen )} (35)
 // CHECK-CTOR-INIT-2: MemberRef:{TypedText value}{LeftParen (}{Placeholder args}{RightParen )} (7)