MC/AsmParser: Lift Run() and TargetParser to base class.

Also, add constructor function for creating AsmParser instances.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108604 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 17 insertions, 5 deletions

diff --git a/include/llvm/MC/MCParser/AsmParser.h b/include/llvm/MC/MCParser/AsmParser.h
index 0e8570a..24d8590 100644
--- a/include/llvm/MC/MCParser/AsmParser.h
+++ b/include/llvm/MC/MCParser/AsmParser.h
@@ -46,7 +46,6 @@ private:
   SourceMgr &SrcMgr;
   MCAsmParserExtension *GenericParser;
   MCAsmParserExtension *PlatformParser;
-  TargetAsmParser *TargetParser;
   
   /// This is the current buffer index we're lexing from as managed by the
   /// SourceMgr object.
@@ -65,7 +64,7 @@ public:
             const MCAsmInfo &MAI);
   ~AsmParser();
 
-  bool Run(bool NoInitialTextSection, bool NoFinalize = false);
+  virtual bool Run(bool NoInitialTextSection, bool NoFinalize = false);
 
   void AddDirectiveHandler(MCAsmParserExtension *Object,
                            StringRef Directive,
@@ -74,9 +73,6 @@ public:
   }
 
 public:
-  TargetAsmParser &getTargetParser() const { return *TargetParser; }
-  void setTargetParser(TargetAsmParser &P);
-
   /// @name MCAsmParser Interface
   /// {
 
diff --git a/include/llvm/MC/MCParser/MCAsmParser.h b/include/llvm/MC/MCParser/MCAsmParser.h
index d0ccd0f..c18bb39 100644
--- a/include/llvm/MC/MCParser/MCAsmParser.h
+++ b/include/llvm/MC/MCParser/MCAsmParser.h
@@ -14,6 +14,7 @@
 
 namespace llvm {
 class AsmToken;
+class MCAsmInfo;
 class MCAsmLexer;
 class MCAsmParserExtension;
 class MCContext;
@@ -22,6 +23,8 @@ class MCStreamer;
 class SMLoc;
 class SourceMgr;
 class StringRef;
+class Target;
+class TargetAsmParser;
 class Twine;
 
 /// MCAsmParser - Generic assembler parser interface, for use by target specific
@@ -33,6 +36,9 @@ public:
 private:
   MCAsmParser(const MCAsmParser &);   // DO NOT IMPLEMENT
   void operator=(const MCAsmParser &);  // DO NOT IMPLEMENT
+
+  TargetAsmParser *TargetParser;
+
 protected: // Can only create subclasses.
   MCAsmParser();
 
@@ -52,6 +58,12 @@ public:
   /// getStreamer - Return the output streamer for the assembler.
   virtual MCStreamer &getStreamer() = 0;
 
+  TargetAsmParser &getTargetParser() const { return *TargetParser; }
+  void setTargetParser(TargetAsmParser &P);
+
+  /// Run - Run the parser on the input source buffer.
+  virtual bool Run(bool NoInitialTextSection, bool NoFinalize = false) = 0;
+
   /// Warning - Emit a warning at the location \arg L, with the message \arg
   /// Msg.
   virtual void Warning(SMLoc L, const Twine &Msg) = 0;
@@ -102,6 +114,10 @@ public:
   virtual bool ParseAbsoluteExpression(int64_t &Res) = 0;
 };
 
+/// \brief Create an MCAsmParser instance.
+MCAsmParser *createMCAsmParser(const Target &, SourceMgr &, MCContext &,
+                               MCStreamer &, const MCAsmInfo &);
+
 } // End llvm namespace
 
 #endif