Vendor import of clang trunk r126547:

http://llvm.org/svn/llvm-project/cfe/trunk@126547

1 files changed, 65 insertions, 6 deletions

diff --git a/lib/Serialization/ASTWriter.cpp b/lib/Serialization/ASTWriter.cpp
index 8fcb535..383ca3d 100644
--- a/lib/Serialization/ASTWriter.cpp
+++ b/lib/Serialization/ASTWriter.cpp
@@ -1023,8 +1023,9 @@ void ASTWriter::WriteLanguageOptions(const LangOptions &LangOpts) {
   Record.push_back(LangOpts.LaxVectorConversions);
   Record.push_back(LangOpts.AltiVec);
   Record.push_back(LangOpts.Exceptions);  // Support exception handling.
-  Record.push_back(LangOpts.SjLjExceptions);
   Record.push_back(LangOpts.ObjCExceptions);
+  Record.push_back(LangOpts.CXXExceptions);
+  Record.push_back(LangOpts.SjLjExceptions);
 
   Record.push_back(LangOpts.MSBitfields); // MS-compatible structure layout
   Record.push_back(LangOpts.NeXTRuntime); // Use NeXT runtime.
@@ -3275,15 +3276,21 @@ void ASTWriter::AddTemplateArgumentLoc(const TemplateArgumentLoc &Arg,
                              Record);
 }
 
-void ASTWriter::AddTypeSourceInfo(TypeSourceInfo *TInfo, RecordDataImpl &Record) {
+void ASTWriter::AddTypeSourceInfo(TypeSourceInfo *TInfo, 
+                                  RecordDataImpl &Record) {
   if (TInfo == 0) {
     AddTypeRef(QualType(), Record);
     return;
   }
 
-  AddTypeRef(TInfo->getType(), Record);
+  AddTypeLoc(TInfo->getTypeLoc(), Record);
+}
+
+void ASTWriter::AddTypeLoc(TypeLoc TL, RecordDataImpl &Record) {
+  AddTypeRef(TL.getType(), Record);
+
   TypeLocWriter TLW(*this, Record);
-  for (TypeLoc TL = TInfo->getTypeLoc(); !TL.isNull(); TL = TL.getNextTypeLoc())
+  for (; !TL.isNull(); TL = TL.getNextTypeLoc())
     TLW.Visit(TL);
 }
 
@@ -3436,8 +3443,7 @@ void ASTWriter::AddDeclarationNameInfo(const DeclarationNameInfo &NameInfo,
 
 void ASTWriter::AddQualifierInfo(const QualifierInfo &Info,
                                  RecordDataImpl &Record) {
-  AddNestedNameSpecifier(Info.NNS, Record);
-  AddSourceRange(Info.NNSRange, Record);
+  AddNestedNameSpecifierLoc(Info.QualifierLoc, Record);
   Record.push_back(Info.NumTemplParamLists);
   for (unsigned i=0, e=Info.NumTemplParamLists; i != e; ++i)
     AddTemplateParameterList(Info.TemplParamLists[i], Record);
@@ -3469,6 +3475,10 @@ void ASTWriter::AddNestedNameSpecifier(NestedNameSpecifier *NNS,
       AddDeclRef(NNS->getAsNamespace(), Record);
       break;
 
+    case NestedNameSpecifier::NamespaceAlias:
+      AddDeclRef(NNS->getAsNamespaceAlias(), Record);
+      break;
+
     case NestedNameSpecifier::TypeSpec:
     case NestedNameSpecifier::TypeSpecWithTemplate:
       AddTypeRef(QualType(NNS->getAsType(), 0), Record);
@@ -3482,6 +3492,55 @@ void ASTWriter::AddNestedNameSpecifier(NestedNameSpecifier *NNS,
   }
 }
 
+void ASTWriter::AddNestedNameSpecifierLoc(NestedNameSpecifierLoc NNS,
+                                          RecordDataImpl &Record) {
+  // Nested name specifiers usually aren't too long. I think that 8 would
+  // typically accomodate the vast majority.
+  llvm::SmallVector<NestedNameSpecifierLoc , 8> NestedNames;
+
+  // Push each of the nested-name-specifiers's onto a stack for
+  // serialization in reverse order.
+  while (NNS) {
+    NestedNames.push_back(NNS);
+    NNS = NNS.getPrefix();
+  }
+
+  Record.push_back(NestedNames.size());
+  while(!NestedNames.empty()) {
+    NNS = NestedNames.pop_back_val();
+    NestedNameSpecifier::SpecifierKind Kind
+      = NNS.getNestedNameSpecifier()->getKind();
+    Record.push_back(Kind);
+    switch (Kind) {
+    case NestedNameSpecifier::Identifier:
+      AddIdentifierRef(NNS.getNestedNameSpecifier()->getAsIdentifier(), Record);
+      AddSourceRange(NNS.getLocalSourceRange(), Record);
+      break;
+
+    case NestedNameSpecifier::Namespace:
+      AddDeclRef(NNS.getNestedNameSpecifier()->getAsNamespace(), Record);
+      AddSourceRange(NNS.getLocalSourceRange(), Record);
+      break;
+
+    case NestedNameSpecifier::NamespaceAlias:
+      AddDeclRef(NNS.getNestedNameSpecifier()->getAsNamespaceAlias(), Record);
+      AddSourceRange(NNS.getLocalSourceRange(), Record);
+      break;
+
+    case NestedNameSpecifier::TypeSpec:
+    case NestedNameSpecifier::TypeSpecWithTemplate:
+      Record.push_back(Kind == NestedNameSpecifier::TypeSpecWithTemplate);
+      AddTypeLoc(NNS.getTypeLoc(), Record);
+      AddSourceLocation(NNS.getLocalSourceRange().getEnd(), Record);
+      break;
+
+    case NestedNameSpecifier::Global:
+      AddSourceLocation(NNS.getLocalSourceRange().getEnd(), Record);
+      break;
+    }
+  }
+}
+
 void ASTWriter::AddTemplateName(TemplateName Name, RecordDataImpl &Record) {
   TemplateName::NameKind Kind = Name.getKind();
   Record.push_back(Kind);