Make a couple of helper classes private to TypoCorrectionConsumer.

The SpecifierInfo and NamespaceSpecifierSet are now only used by
TypoCorrectionConsumer, so treat them as the implementation details of
TypoCorrectionConsumer that they are. Also make NamespaceSpecifierSet's
method names more style guide compliant.

No functionality changed.

llvm-svn: 210671

1 files changed, 87 insertions, 81 deletions

diff --git a/clang/lib/Sema/SemaLookup.cpp b/clang/lib/Sema/SemaLookup.cpp
index e4146f7a549..47e5f6f66cd 100644
--- a/clang/lib/Sema/SemaLookup.cpp
+++ b/clang/lib/Sema/SemaLookup.cpp
@@ -3323,78 +3323,6 @@ static void getNestedNameSpecifierIdentifiers(
 
 namespace {
 
-class SpecifierInfo {
- public:
-  DeclContext* DeclCtx;
-  NestedNameSpecifier* NameSpecifier;
-  unsigned EditDistance;
-
-  SpecifierInfo(DeclContext *Ctx, NestedNameSpecifier *NNS, unsigned ED)
-      : DeclCtx(Ctx), NameSpecifier(NNS), EditDistance(ED) {}
-};
-
-typedef SmallVector<DeclContext*, 4> DeclContextList;
-typedef SmallVector<SpecifierInfo, 16> SpecifierInfoList;
-
-class NamespaceSpecifierSet {
-  ASTContext &Context;
-  DeclContextList CurContextChain;
-  std::string CurNameSpecifier;
-  SmallVector<const IdentifierInfo*, 4> CurContextIdentifiers;
-  SmallVector<const IdentifierInfo*, 4> CurNameSpecifierIdentifiers;
-  bool isSorted;
-
-  SpecifierInfoList Specifiers;
-  llvm::SmallSetVector<unsigned, 4> Distances;
-  llvm::DenseMap<unsigned, SpecifierInfoList> DistanceMap;
-
-  /// \brief Helper for building the list of DeclContexts between the current
-  /// context and the top of the translation unit
-  static DeclContextList buildContextChain(DeclContext *Start);
-
-  void sortNamespaces();
-
- public:
-  NamespaceSpecifierSet(ASTContext &Context, DeclContext *CurContext,
-                        CXXScopeSpec *CurScopeSpec)
-      : Context(Context), CurContextChain(buildContextChain(CurContext)),
-        isSorted(false) {
-    if (NestedNameSpecifier *NNS =
-            CurScopeSpec ? CurScopeSpec->getScopeRep() : nullptr) {
-      llvm::raw_string_ostream SpecifierOStream(CurNameSpecifier);
-      NNS->print(SpecifierOStream, Context.getPrintingPolicy());
-
-      getNestedNameSpecifierIdentifiers(NNS, CurNameSpecifierIdentifiers);
-    }
-    // Build the list of identifiers that would be used for an absolute
-    // (from the global context) NestedNameSpecifier referring to the current
-    // context.
-    for (DeclContextList::reverse_iterator C = CurContextChain.rbegin(),
-                                        CEnd = CurContextChain.rend();
-         C != CEnd; ++C) {
-      if (NamespaceDecl *ND = dyn_cast_or_null<NamespaceDecl>(*C))
-        CurContextIdentifiers.push_back(ND->getIdentifier());
-    }
-
-    // Add the global context as a NestedNameSpecifier
-    Distances.insert(1);
-    DistanceMap[1].push_back(
-        SpecifierInfo(cast<DeclContext>(Context.getTranslationUnitDecl()),
-                      NestedNameSpecifier::GlobalSpecifier(Context), 1));
-  }
-
-  /// \brief Add the DeclContext (a namespace or record) to the set, computing
-  /// the corresponding NestedNameSpecifier and its distance in the process.
-  void addNameSpecifier(DeclContext *Ctx);
-
-  typedef SpecifierInfoList::iterator iterator;
-  iterator begin() {
-    if (!isSorted) sortNamespaces();
-    return Specifiers.begin();
-  }
-  iterator end() { return Specifiers.end(); }
-};
-
 static const unsigned MaxTypoDistanceResultSets = 5;
 
 class TypoCorrectionConsumer : public VisibleDeclConsumer {
@@ -3446,6 +3374,81 @@ public:
   TypoCorrection getNextCorrection();
 
 private:
+  class SpecifierInfo {
+   public:
+    DeclContext* DeclCtx;
+    NestedNameSpecifier* NameSpecifier;
+    unsigned EditDistance;
+
+    SpecifierInfo(DeclContext *Ctx, NestedNameSpecifier *NNS, unsigned ED)
+        : DeclCtx(Ctx), NameSpecifier(NNS), EditDistance(ED) {}
+  };
+
+  typedef SmallVector<DeclContext*, 4> DeclContextList;
+  typedef SmallVector<SpecifierInfo, 16> SpecifierInfoList;
+
+  class NamespaceSpecifierSet {
+    ASTContext &Context;
+    DeclContextList CurContextChain;
+    std::string CurNameSpecifier;
+    SmallVector<const IdentifierInfo*, 4> CurContextIdentifiers;
+    SmallVector<const IdentifierInfo*, 4> CurNameSpecifierIdentifiers;
+    bool isSorted;
+
+    SpecifierInfoList Specifiers;
+    llvm::SmallSetVector<unsigned, 4> Distances;
+    llvm::DenseMap<unsigned, SpecifierInfoList> DistanceMap;
+
+    /// \brief Helper for building the list of DeclContexts between the current
+    /// context and the top of the translation unit
+    static DeclContextList buildContextChain(DeclContext *Start);
+
+    void sortNamespaces();
+
+    unsigned buildNestedNameSpecifier(DeclContextList &DeclChain,
+                                      NestedNameSpecifier *&NNS);
+
+   public:
+    NamespaceSpecifierSet(ASTContext &Context, DeclContext *CurContext,
+                          CXXScopeSpec *CurScopeSpec)
+        : Context(Context), CurContextChain(buildContextChain(CurContext)),
+          isSorted(false) {
+      if (NestedNameSpecifier *NNS =
+              CurScopeSpec ? CurScopeSpec->getScopeRep() : nullptr) {
+        llvm::raw_string_ostream SpecifierOStream(CurNameSpecifier);
+        NNS->print(SpecifierOStream, Context.getPrintingPolicy());
+
+        getNestedNameSpecifierIdentifiers(NNS, CurNameSpecifierIdentifiers);
+      }
+      // Build the list of identifiers that would be used for an absolute
+      // (from the global context) NestedNameSpecifier referring to the current
+      // context.
+      for (DeclContextList::reverse_iterator C = CurContextChain.rbegin(),
+                                          CEnd = CurContextChain.rend();
+           C != CEnd; ++C) {
+        if (NamespaceDecl *ND = dyn_cast_or_null<NamespaceDecl>(*C))
+          CurContextIdentifiers.push_back(ND->getIdentifier());
+      }
+
+      // Add the global context as a NestedNameSpecifier
+      Distances.insert(1);
+      DistanceMap[1].push_back(
+          SpecifierInfo(cast<DeclContext>(Context.getTranslationUnitDecl()),
+                        NestedNameSpecifier::GlobalSpecifier(Context), 1));
+    }
+
+    /// \brief Add the DeclContext (a namespace or record) to the set, computing
+    /// the corresponding NestedNameSpecifier and its distance in the process.
+    void addNameSpecifier(DeclContext *Ctx);
+
+    typedef SpecifierInfoList::iterator iterator;
+    iterator begin() {
+      if (!isSorted) sortNamespaces();
+      return Specifiers.begin();
+    }
+    iterator end() { return Specifiers.end(); }
+  };
+
   void addName(StringRef Name, NamedDecl *ND,
                NestedNameSpecifier *NNS = nullptr, bool isKeyword = false);
 
@@ -3744,7 +3747,9 @@ void TypoCorrectionConsumer::performQualifiedLookups() {
   QualifiedResults.clear();
 }
 
-DeclContextList NamespaceSpecifierSet::buildContextChain(DeclContext *Start) {
+TypoCorrectionConsumer::DeclContextList
+TypoCorrectionConsumer::NamespaceSpecifierSet::buildContextChain(
+    DeclContext *Start) {
   assert(Start && "Building a context chain from a null context");
   DeclContextList Chain;
   for (DeclContext *DC = Start->getPrimaryContext(); DC != nullptr;
@@ -3757,7 +3762,7 @@ DeclContextList NamespaceSpecifierSet::buildContextChain(DeclContext *Start) {
   return Chain;
 }
 
-void NamespaceSpecifierSet::sortNamespaces() {
+void TypoCorrectionConsumer::NamespaceSpecifierSet::sortNamespaces() {
   SmallVector<unsigned, 4> sortedDistances;
   sortedDistances.append(Distances.begin(), Distances.end());
 
@@ -3775,9 +3780,9 @@ void NamespaceSpecifierSet::sortNamespaces() {
   isSorted = true;
 }
 
-static unsigned BuildNestedNameSpecifier(ASTContext &Context,
-                                         DeclContextList &DeclChain,
-                                         NestedNameSpecifier *&NNS) {
+unsigned
+TypoCorrectionConsumer::NamespaceSpecifierSet::buildNestedNameSpecifier(
+    DeclContextList &DeclChain, NestedNameSpecifier *&NNS) {
   unsigned NumSpecifiers = 0;
   for (DeclContextList::reverse_iterator C = DeclChain.rbegin(),
                                       CEnd = DeclChain.rend();
@@ -3794,7 +3799,8 @@ static unsigned BuildNestedNameSpecifier(ASTContext &Context,
   return NumSpecifiers;
 }
 
-void NamespaceSpecifierSet::addNameSpecifier(DeclContext *Ctx) {
+void TypoCorrectionConsumer::NamespaceSpecifierSet::addNameSpecifier(
+    DeclContext *Ctx) {
   NestedNameSpecifier *NNS = nullptr;
   unsigned NumSpecifiers = 0;
   DeclContextList NamespaceDeclChain(buildContextChain(Ctx));
@@ -3809,14 +3815,14 @@ void NamespaceSpecifierSet::addNameSpecifier(DeclContext *Ctx) {
   }
 
   // Build the NestedNameSpecifier from what is left of the NamespaceDeclChain
-  NumSpecifiers = BuildNestedNameSpecifier(Context, NamespaceDeclChain, NNS);
+  NumSpecifiers = buildNestedNameSpecifier(NamespaceDeclChain, NNS);
 
   // Add an explicit leading '::' specifier if needed.
   if (NamespaceDeclChain.empty()) {
     // Rebuild the NestedNameSpecifier as a globally-qualified specifier.
     NNS = NestedNameSpecifier::GlobalSpecifier(Context);
     NumSpecifiers =
-        BuildNestedNameSpecifier(Context, FullNamespaceDeclChain, NNS);
+        buildNestedNameSpecifier(FullNamespaceDeclChain, NNS);
   } else if (NamedDecl *ND =
                  dyn_cast_or_null<NamedDecl>(NamespaceDeclChain.back())) {
     IdentifierInfo *Name = ND->getIdentifier();
@@ -3838,7 +3844,7 @@ void NamespaceSpecifierSet::addNameSpecifier(DeclContext *Ctx) {
       // Rebuild the NestedNameSpecifier as a globally-qualified specifier.
       NNS = NestedNameSpecifier::GlobalSpecifier(Context);
       NumSpecifiers =
-          BuildNestedNameSpecifier(Context, FullNamespaceDeclChain, NNS);
+          buildNestedNameSpecifier(FullNamespaceDeclChain, NNS);
     }
   }