AST/InheritViz: Remove all internal uses of PathV1.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@123553 91177308-0d34-0410-b5e6-96231b3b80d8

lib/AST/InheritViz.cpp

@@ -17,6 +17,7 @@
 #include "clang/AST/Decl.h"
 #include "clang/AST/DeclCXX.h"
 #include "clang/AST/TypeOrdering.h"
+#include "llvm/Support/FileSystem.h"
 #include "llvm/Support/GraphWriter.h"
 #include "llvm/Support/raw_ostream.h"
 #include <map>
@@ -135,34 +136,28 @@ InheritanceHierarchyWriter::WriteNodeReference(QualType Type,
 /// class using GraphViz.
 void CXXRecordDecl::viewInheritance(ASTContext& Context) const {
   QualType Self = Context.getTypeDeclType(const_cast<CXXRecordDecl *>(this));
-  std::string ErrMsg;
-  sys::Path Filename = sys::Path::GetTemporaryDirectory(&ErrMsg);
-  if (Filename.isEmpty()) {
-    llvm::errs() << "Error: " << ErrMsg << "\n";
-    return;
-  }
-  Filename.appendComponent(Self.getAsString() + ".dot");
-  if (Filename.makeUnique(true,&ErrMsg)) {
-    llvm::errs() << "Error: " << ErrMsg << "\n";
+  // Create temp directory
+  SmallString<128> Filename;
+  int FileFD = 0;
+  if (error_code ec = sys::fs::unique_file(
+    "clang-class-inheritance-hierarchy-%%-%%-%%-%%-" +
+    Self.getAsString() + ".dot",
+    FileFD, Filename)) {
+    errs() << "Error creating temporary output file: " << ec.message() << '\n';
     return;
   }
 
-  llvm::errs() << "Writing '" << Filename.c_str() << "'... ";
+  llvm::errs() << "Writing '" << Filename << "'... ";
 
-  llvm::raw_fd_ostream O(Filename.c_str(), ErrMsg);
+  llvm::raw_fd_ostream O(FileFD, true);
+  InheritanceHierarchyWriter Writer(Context, O);
+  Writer.WriteGraph(Self);
 
-  if (ErrMsg.empty()) {
-    InheritanceHierarchyWriter Writer(Context, O);
-    Writer.WriteGraph(Self);
-    llvm::errs() << " done. \n";
+  llvm::errs() << " done. \n";
+  O.close();
 
-    O.close();
-
-    // Display the graph
-    DisplayGraph(Filename);
-  } else {
-    llvm::errs() << "error opening file for writing!\n";
-  }
+  // Display the graph
+  DisplayGraph(sys::Path(Filename));
 }
 
 }