Support a couple more C++ Exprs for PCH.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106727 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/PCHReader.cpp b/lib/Frontend/PCHReader.cpp
index 1f40781..498e804 100644
--- a/lib/Frontend/PCHReader.cpp
+++ b/lib/Frontend/PCHReader.cpp
@@ -2216,6 +2216,14 @@
     IdentifierInfo *Name = GetIdentifierInfo(Record, Idx);
     return Context->getTemplateTypeParmType(Depth, Index, Pack, Name);
   }
+  
+  case pch::TYPE_DEPENDENT_NAME: {
+    unsigned Idx = 0;
+    ElaboratedTypeKeyword Keyword = (ElaboratedTypeKeyword)Record[Idx++];
+    NestedNameSpecifier *NNS = ReadNestedNameSpecifier(Record, Idx);
+    const IdentifierInfo *Name = this->GetIdentifierInfo(Record, Idx);
+    return Context->getDependentNameType(Keyword, NNS, Name, QualType());
+  }
 
   case pch::TYPE_TEMPLATE_SPECIALIZATION: {
     unsigned Idx = 0;
diff --git a/lib/Frontend/PCHReaderStmt.cpp b/lib/Frontend/PCHReaderStmt.cpp
index 652fdb1..9c2ae6d 100644
--- a/lib/Frontend/PCHReaderStmt.cpp
+++ b/lib/Frontend/PCHReaderStmt.cpp
@@ -137,6 +137,9 @@
     unsigned VisitCXXDeleteExpr(CXXDeleteExpr *E);
     
     unsigned VisitCXXExprWithTemporaries(CXXExprWithTemporaries *E);
+    
+    unsigned VisitCXXDependentScopeMemberExpr(CXXDependentScopeMemberExpr *E);
+    unsigned VisitCXXUnresolvedConstructExpr(CXXUnresolvedConstructExpr *E);
   };
 }
 
@@ -1114,6 +1117,50 @@
   return 1;
 }
 
+unsigned
+PCHStmtReader::VisitCXXDependentScopeMemberExpr(CXXDependentScopeMemberExpr *E){
+  VisitExpr(E);
+  
+  unsigned NumTemplateArgs = Record[Idx++];
+  assert((NumTemplateArgs != 0) == E->hasExplicitTemplateArgs() &&
+         "Read wrong record during creation ?");
+  if (E->hasExplicitTemplateArgs()) {
+    TemplateArgumentListInfo ArgInfo;
+    ArgInfo.setLAngleLoc(Reader.ReadSourceLocation(Record, Idx));
+    ArgInfo.setRAngleLoc(Reader.ReadSourceLocation(Record, Idx));
+    for (unsigned i = 0; i != NumTemplateArgs; ++i)
+      ArgInfo.addArgument(Reader.ReadTemplateArgumentLoc(Record, Idx));
+    E->initializeTemplateArgumentsFrom(ArgInfo);
+  }
+
+  E->setBase(cast_or_null<Expr>(StmtStack.back()));
+  E->setBaseType(Reader.GetType(Record[Idx++]));
+  E->setArrow(Record[Idx++]);
+  E->setOperatorLoc(Reader.ReadSourceLocation(Record, Idx));
+  E->setQualifier(Reader.ReadNestedNameSpecifier(Record, Idx));
+  E->setQualifierRange(Reader.ReadSourceRange(Record, Idx));
+  E->setFirstQualifierFoundInScope(
+                        cast_or_null<NamedDecl>(Reader.GetDecl(Record[Idx++])));
+  E->setMember(Reader.ReadDeclarationName(Record, Idx));
+  E->setMemberLoc(Reader.ReadSourceLocation(Record, Idx));
+  
+  return 1;
+}
+
+unsigned
+PCHStmtReader::VisitCXXUnresolvedConstructExpr(CXXUnresolvedConstructExpr *E) {
+  VisitExpr(E);
+  assert(Record[Idx] == E->arg_size() && "Read wrong record during creation ?");
+  ++Idx; // NumArgs;
+  for (unsigned I = 0, N = E->arg_size(); I != N; ++I)
+    E->setArg(I, cast<Expr>(StmtStack[StmtStack.size() - N + I]));
+  E->setTypeBeginLoc(Reader.ReadSourceLocation(Record, Idx));
+  E->setTypeAsWritten(Reader.GetType(Record[Idx++]));
+  E->setLParenLoc(Reader.ReadSourceLocation(Record, Idx));
+  E->setRParenLoc(Reader.ReadSourceLocation(Record, Idx));
+  return E->arg_size();
+}
+
 
 // Within the bitstream, expressions are stored in Reverse Polish
 // Notation, with each of the subexpressions preceding the
@@ -1493,10 +1540,19 @@
       S = new (Context) CXXDeleteExpr(Empty);
       break;
         
-        
     case pch::EXPR_CXX_EXPR_WITH_TEMPORARIES:
       S = new (Context) CXXExprWithTemporaries(Empty);
       break;
+      
+    case pch::EXPR_CXX_DEPENDENT_SCOPE_MEMBER:
+      S = CXXDependentScopeMemberExpr::CreateEmpty(*Context,
+                                          Record[PCHStmtReader::NumExprFields]);
+      break;
+      
+    case pch::EXPR_CXX_UNRESOLVED_CONSTRUCT:
+      S = CXXUnresolvedConstructExpr::CreateEmpty(*Context,
+                                          Record[PCHStmtReader::NumExprFields]);
+      break;
     }
 
     // We hit a STMT_STOP, so we're done with this expression.
diff --git a/lib/Frontend/PCHWriter.cpp b/lib/Frontend/PCHWriter.cpp
index 77356cc..21ea5fc 100644
--- a/lib/Frontend/PCHWriter.cpp
+++ b/lib/Frontend/PCHWriter.cpp
@@ -252,8 +252,10 @@
 
 void
 PCHTypeWriter::VisitDependentNameType(const DependentNameType *T) {
-  // FIXME: Serialize this type (C++ only)
-  assert(false && "Cannot serialize dependent name types");
+  Record.push_back(T->getKeyword());
+  Writer.AddNestedNameSpecifier(T->getQualifier(), Record);
+  Writer.AddIdentifierRef(T->getIdentifier(), Record);
+  Code = pch::TYPE_DEPENDENT_NAME;
 }
 
 void
diff --git a/lib/Frontend/PCHWriterStmt.cpp b/lib/Frontend/PCHWriterStmt.cpp
index 80ee6a2..66e1529 100644
--- a/lib/Frontend/PCHWriterStmt.cpp
+++ b/lib/Frontend/PCHWriterStmt.cpp
@@ -127,12 +127,14 @@
     void VisitCXXThrowExpr(CXXThrowExpr *E);
     void VisitCXXDefaultArgExpr(CXXDefaultArgExpr *E);
     void VisitCXXBindTemporaryExpr(CXXBindTemporaryExpr *E);
-    
+
     void VisitCXXZeroInitValueExpr(CXXZeroInitValueExpr *E);
     void VisitCXXNewExpr(CXXNewExpr *E);
     void VisitCXXDeleteExpr(CXXDeleteExpr *E);
-    
+
     void VisitCXXExprWithTemporaries(CXXExprWithTemporaries *E);
+    void VisitCXXDependentScopeMemberExpr(CXXDependentScopeMemberExpr *E);
+    void VisitCXXUnresolvedConstructExpr(CXXUnresolvedConstructExpr *E);
   };
 }
 
@@ -1019,6 +1021,50 @@
   Code = pch::EXPR_CXX_EXPR_WITH_TEMPORARIES;
 }
 
+void
+PCHStmtWriter::VisitCXXDependentScopeMemberExpr(CXXDependentScopeMemberExpr *E){
+  VisitExpr(E);
+
+  if (E->hasExplicitTemplateArgs()) {
+    assert(E->getNumTemplateArgs() &&
+           "Num of template args was zero! PCH reading will mess up!");
+    Record.push_back(E->getNumTemplateArgs());
+    Writer.AddSourceLocation(E->getLAngleLoc(), Record);
+    Writer.AddSourceLocation(E->getRAngleLoc(), Record);
+    for (int i=0, e = E->getNumTemplateArgs(); i != e; ++i)
+      Writer.AddTemplateArgumentLoc(E->getTemplateArgs()[i], Record);
+  } else {
+    Record.push_back(0);
+  }
+  
+  if (!E->isImplicitAccess())
+    Writer.WriteSubStmt(E->getBase());
+  else
+    Writer.WriteSubStmt(0);
+  Writer.AddTypeRef(E->getBaseType(), Record);
+  Record.push_back(E->isArrow());
+  Writer.AddSourceLocation(E->getOperatorLoc(), Record);
+  Writer.AddNestedNameSpecifier(E->getQualifier(), Record);
+  Writer.AddSourceRange(E->getQualifierRange(), Record);
+  Writer.AddDeclRef(E->getFirstQualifierFoundInScope(), Record);
+  Writer.AddDeclarationName(E->getMember(), Record);
+  Writer.AddSourceLocation(E->getMemberLoc(), Record);
+  Code = pch::EXPR_CXX_DEPENDENT_SCOPE_MEMBER;
+}
+
+void
+PCHStmtWriter::VisitCXXUnresolvedConstructExpr(CXXUnresolvedConstructExpr *E) {
+  VisitExpr(E);
+  Record.push_back(E->arg_size());
+  for (CXXUnresolvedConstructExpr::arg_iterator
+         ArgI = E->arg_begin(), ArgE = E->arg_end(); ArgI != ArgE; ++ArgI)
+    Writer.WriteSubStmt(*ArgI);
+  Writer.AddSourceLocation(E->getTypeBeginLoc(), Record);
+  Writer.AddTypeRef(E->getTypeAsWritten(), Record);
+  Writer.AddSourceLocation(E->getLParenLoc(), Record);
+  Writer.AddSourceLocation(E->getRParenLoc(), Record);
+  Code = pch::EXPR_CXX_UNRESOLVED_CONSTRUCT;
+}
 
 //===----------------------------------------------------------------------===//
 // PCHWriter Implementation