Refactor pieces of PathDiagnostic into its own data structure. No functionality change.

llvm-svn: 150053

clang/include/clang/StaticAnalyzer/Core/BugReporter/PathDiagnostic.h

@@ -44,6 +44,12 @@ class ExplodedNode;
 //===----------------------------------------------------------------------===//
 
 class PathDiagnostic;
+class PathDiagnosticPiece;
+
+class PathPieces : public std::deque<PathDiagnosticPiece *> {
+public:
+  ~PathPieces();  
+};
 
 class PathDiagnosticConsumer {
   virtual void anchor();
@@ -475,7 +481,7 @@ public:
 ///  diagnostic.  It represents an ordered-collection of PathDiagnosticPieces,
 ///  each which represent the pieces of the path.
 class PathDiagnostic : public llvm::FoldingSetNode {
-  std::deque<PathDiagnosticPiece*> path;
+  PathPieces path;
   unsigned Size;
   std::string BugType;
   std::string Desc;

clang/lib/StaticAnalyzer/Core/PathDiagnostic.cpp

@@ -62,10 +62,12 @@ PathDiagnosticMacroPiece::~PathDiagnosticMacroPiece() {
 
 PathDiagnostic::PathDiagnostic() : Size(0) {}
 
-PathDiagnostic::~PathDiagnostic() {
-  for (iterator I = begin(), E = end(); I != E; ++I) delete &*I;
+PathPieces::~PathPieces() {
+  for (iterator I = begin(), E = end(); I != E; ++I) delete *I;
 }
 
+PathDiagnostic::~PathDiagnostic() {}
+
 void PathDiagnostic::resetPath(bool deletePieces) {
   Size = 0;