From: Douglas Gregor <dgregor@apple.com>
Date: Thu, 3 Nov 2011 00:16:13 +0000 (+0000)
Subject: Add a printing policy flag to suppress printing "<anonymous>::" prior
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=25270b6e6a8416b7532cfe552b41794418ea19b1;p=clang

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>.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143599 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/clang/AST/PrettyPrinter.h b/include/clang/AST/PrettyPrinter.h
index 2bdd8d3f4b..2e34dc8cbd 100644
--- a/include/clang/AST/PrettyPrinter.h
+++ b/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/lib/AST/NestedNameSpecifier.cpp b/lib/AST/NestedNameSpecifier.cpp
index 1ff2e7177b..858cf12dc6 100644
--- a/lib/AST/NestedNameSpecifier.cpp
+++ b/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/lib/AST/TypePrinter.cpp b/lib/AST/TypePrinter.cpp
index fb7b918ca2..ec6cb48bf8 100644
--- a/lib/AST/TypePrinter.cpp
+++ b/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/lib/Sema/SemaCodeComplete.cpp b/lib/Sema/SemaCodeComplete.cpp
index 4066a06e52..f964ec1483 100644
--- a/lib/Sema/SemaCodeComplete.cpp
+++ b/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/test/Index/complete-cxx-inline-methods.cpp b/test/Index/complete-cxx-inline-methods.cpp
index 48fa8683af..d441972dd6 100644
--- a/test/Index/complete-cxx-inline-methods.cpp
+++ b/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)