Changed llvm_ostream et all to OStream. llvm_cerr, llvm_cout, llvm_null, are

now cerr, cout, and NullStream resp.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32298 91177308-0d34-0410-b5e6-96231b3b80d8

6 files changed, 47 insertions, 31 deletions

diff --git a/include/llvm/Support/Casting.h b/include/llvm/Support/Casting.h
index fff44f6e64..dc318395cc 100644
--- a/include/llvm/Support/Casting.h
+++ b/include/llvm/Support/Casting.h
@@ -245,13 +245,13 @@ private:
 struct foo {
   void ext() const;
   /*  static bool classof(const bar *X) {
-    llvm_cerr << "Classof: " << X << "\n";
+    cerr << "Classof: " << X << "\n";
     return true;
     }*/
 };
 
 template <> inline bool isa_impl<foo,bar>(const bar &Val) {
-  llvm_cerr << "Classof: " << &Val << "\n";
+  cerr << "Classof: " << &Val << "\n";
   return true;
 }
 
diff --git a/include/llvm/Support/ConstantRange.h b/include/llvm/Support/ConstantRange.h
index 90a29902c3..6866ffeb11 100644
--- a/include/llvm/Support/ConstantRange.h
+++ b/include/llvm/Support/ConstantRange.h
@@ -141,7 +141,7 @@ class ConstantRange {
 
   /// print - Print out the bounds to a stream...
   ///
-  void print(llvm_ostream &OS) const {
+  void print(OStream &OS) const {
     if (OS.stream()) print(*OS.stream());
   }
   void print(std::ostream &OS) const;
diff --git a/include/llvm/Support/Debug.h b/include/llvm/Support/Debug.h
index 9f0f1611d7..09878b9d1e 100644
--- a/include/llvm/Support/Debug.h
+++ b/include/llvm/Support/Debug.h
@@ -65,10 +65,10 @@ bool isCurrentDebugType(const char *Type);
 /// places the std::c* I/O streams into one .cpp file and relieves the whole
 /// program from having to have hundreds of static c'tor/d'tors for them.
 /// 
-llvm_ostream getErrorOutputStream(const char *DebugType);
+OStream getErrorOutputStream(const char *DebugType);
 
 #ifdef NDEBUG
-#define DOUT llvm_ostream()
+#define DOUT NullStream
 #else
 #define DOUT getErrorOutputStream(DEBUG_TYPE)
 #endif
diff --git a/include/llvm/Support/GraphWriter.h b/include/llvm/Support/GraphWriter.h
index 8602e74c14..b9566b84f8 100644
--- a/include/llvm/Support/GraphWriter.h
+++ b/include/llvm/Support/GraphWriter.h
@@ -247,16 +247,16 @@ sys::Path WriteGraph(const GraphType &G,
   std::string ErrMsg;
   sys::Path Filename = sys::Path::GetTemporaryDirectory(&ErrMsg);
   if (Filename.isEmpty()) {
-    llvm_cerr << "Error: " << ErrMsg << "\n";
+    cerr << "Error: " << ErrMsg << "\n";
     return Filename;
   }
   Filename.appendComponent(Name + ".dot");
   if (Filename.makeUnique(true,&ErrMsg)) {
-    llvm_cerr << "Error: " << ErrMsg << "\n";
+    cerr << "Error: " << ErrMsg << "\n";
     return sys::Path();
   }
 
-  llvm_cerr << "Writing '" << Filename << "'... ";
+  cerr << "Writing '" << Filename << "'... ";
   
   std::ofstream O(Filename.c_str());
 
@@ -275,12 +275,12 @@ sys::Path WriteGraph(const GraphType &G,
 
     // Output the end of the graph
     W.writeFooter();
-    llvm_cerr << " done. \n";
+    cerr << " done. \n";
 
     O.close();
     
   } else {
-    llvm_cerr << "error opening file for writing!\n";
+    cerr << "error opening file for writing!\n";
     Filename.clear();
   }
   
diff --git a/include/llvm/Support/PassNameParser.h b/include/llvm/Support/PassNameParser.h
index fef63c3032..83653aa745 100644
--- a/include/llvm/Support/PassNameParser.h
+++ b/include/llvm/Support/PassNameParser.h
@@ -65,8 +65,8 @@ public:
   virtual void passRegistered(const PassInfo *P) {
     if (ignorablePass(P) || !Opt) return;
     if (findOption(P->getPassArgument()) != getNumOptions()) {
-      llvm_cerr << "Two passes with the same argument (-"
-                << P->getPassArgument() << ") attempted to be registered!\n";
+      cerr << "Two passes with the same argument (-"
+           << P->getPassArgument() << ") attempted to be registered!\n";
       abort();
     }
     addLiteralOption(P->getPassArgument(), P, P->getPassName());
diff --git a/include/llvm/Support/Streams.h b/include/llvm/Support/Streams.h
index a422756c63..c4afc86baa 100644
--- a/include/llvm/Support/Streams.h
+++ b/include/llvm/Support/Streams.h
@@ -7,48 +7,64 @@
 //
 //===----------------------------------------------------------------------===//
 //
-// This file implements a wrapper for the std::cout and std::cerr I/O streams.
-// It prevents the need to include <iostream> to each file just to get I/O.
+// This file implements a wrapper for the STL I/O streams.  It prevents the need
+// to include <iostream> in a file just to get I/O.
 //
 //===----------------------------------------------------------------------===//
 
 #ifndef LLVM_SUPPORT_STREAMS_H
 #define LLVM_SUPPORT_STREAMS_H
 
-#include <ostream>              // Doesn't have static d'tors!!
+#include <sstream>
 
 namespace llvm {
 
-  /// llvm_ostream - Acts like an ostream. It's a wrapper for the std::cerr and
-  /// std::cout ostreams. However, it doesn't require #including <iostream> in
-  /// every file, which increases static c'tors & d'tors in the object code.
+  /// BaseStream - Acts like the STL streams. It's a wrapper for the std::cerr,
+  /// std::cout, std::cin, etc. streams. However, it doesn't require #including
+  /// <iostream> in every file (doing so increases static c'tors & d'tors in the
+  /// object code).
   /// 
-  class llvm_ostream {
-    std::ostream* Stream;
+  template <typename StreamTy>
+  class BaseStream {
+    StreamTy *Stream;
   public:
-    llvm_ostream() : Stream(0) {}
-    llvm_ostream(std::ostream &OStream) : Stream(&OStream) {}
+    BaseStream() : Stream(0) {}
+    BaseStream(StreamTy &S) : Stream(&S) {}
+    BaseStream(StreamTy *S) : Stream(S) {}
 
-    std::ostream* stream() const { return Stream; }
+    StreamTy *stream() const { return Stream; }
 
-    inline llvm_ostream &operator << (std::ostream& (*Func)(std::ostream&)) {
+    inline BaseStream &operator << (StreamTy &(*Func)(StreamTy&)) {
       if (Stream) *Stream << Func;
       return *this;
     }
-      
+
     template <typename Ty>
-    llvm_ostream &operator << (const Ty &Thing) {
+    BaseStream &operator << (const Ty &Thing) {
       if (Stream) *Stream << Thing;
       return *this;
     }
 
-    bool operator == (const std::ostream &OS) { return &OS == Stream; }
-    bool operator == (const llvm_ostream &OS) { return OS.Stream == Stream; }
+    template <typename Ty>
+    BaseStream &operator >> (const Ty &Thing) {
+      if (Stream) *Stream >> Thing;
+      return *this;
+    }
+
+    bool operator == (const StreamTy &S) { return &S == Stream; }
+    bool operator != (const StreamTy &S) { return !(*this == S); }
+    bool operator == (const BaseStream &S) { return S.Stream == Stream; }
+    bool operator != (const BaseStream &S) { return !(*this == S); }
   };
 
-  extern llvm_ostream llvm_null;
-  extern llvm_ostream llvm_cout;
-  extern llvm_ostream llvm_cerr;
+  typedef BaseStream<std::ostream> OStream;
+  typedef BaseStream<std::istream> IStream;
+  typedef BaseStream<std::stringstream> StringStream;
+
+  extern OStream NullStream;
+  extern OStream cout;
+  extern OStream cerr;
+  extern IStream cin;
 
 } // End llvm namespace