[Refinery] Introduce TypePropagatorAnalyzer - pointer types.

syzygy/refinery/symbols/dia_symbol_provider.h

 // Copyright 2015 Google Inc. All Rights Reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //     http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
@@ skipping 15 matching lines @@
 #include "syzygy/refinery/core/address.h"
 
 namespace refinery {
 
 // Fwd.
 class ProcessState;
 
 // The DiaSymbolProvider provides symbol information via the DIA interfaces.
 // @note It is *not* safe to interleave access to a session in the context of
 //     different process states, as the session's load address may be different.
+// TODO(manzagop): replace the functions that take in a process state by
+// functions that take in a signature. Symbol providers should not need to know
+// about the process state.
 class DiaSymbolProvider : public base::RefCounted<DiaSymbolProvider> {
  public:
   DiaSymbolProvider();
   ~DiaSymbolProvider();
 
   // Retrieves or creates an IDiaSession for the module within @p process_state
   // corresponding to @p va.
   // @note on success, the session's load address is set.
   // @param va virtual address for which to get a session.
   // @param process_state the process state within which to interpret @p va.
@@ skipping 23 matching lines @@
       pdb_sources_;
   base::hash_map<base::string16, base::win::ScopedComPtr<IDiaSession>>
       pdb_sessions_;
 
   DISALLOW_COPY_AND_ASSIGN(DiaSymbolProvider);
 };
 
 }  // namespace refinery
 
 #endif  // SYZYGY_REFINERY_SYMBOLS_DIA_SYMBOL_PROVIDER_H_