1 files changed, 79 insertions, 0 deletions
diff --git a/include/llvm/Target/TargetAsmLexer.h b/include/llvm/Target/TargetAsmLexer.h
new file mode 100644
index 0000000..daba1ba
--- /dev/null
+++ b/include/llvm/Target/TargetAsmLexer.h
@@ -0,0 +1,79 @@
+//===-- llvm/Target/TargetAsmLexer.h - Target Assembly Lexer ----*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_TARGET_TARGETASMLEXER_H
+#define LLVM_TARGET_TARGETASMLEXER_H
+
+#include "llvm/MC/MCParser/MCAsmLexer.h"
+
+namespace llvm {
+class Target;
+  
+/// TargetAsmLexer - Generic interface to target specific assembly lexers.
+class TargetAsmLexer {
+  /// The current token
+  AsmToken CurTok;
+  
+  /// The location and description of the current error
+  SMLoc ErrLoc;
+  std::string Err;
+  
+  TargetAsmLexer(const TargetAsmLexer &);   // DO NOT IMPLEMENT
+  void operator=(const TargetAsmLexer &);  // DO NOT IMPLEMENT
+protected: // Can only create subclasses.
+  TargetAsmLexer(const Target &);
+  
+  virtual AsmToken LexToken() = 0;
+  
+  void SetError(const SMLoc &errLoc, const std::string &err) {
+    ErrLoc = errLoc;
+    Err = err;
+  }
+  
+  /// TheTarget - The Target that this machine was created for.
+  const Target &TheTarget;
+  
+public:
+  virtual ~TargetAsmLexer();
+  
+  const Target &getTarget() const { return TheTarget; }
+  
+  /// Lex - Consume the next token from the input stream and return it.
+  const AsmToken &Lex() {
+    return CurTok = LexToken();
+  }
+  
+  /// getTok - Get the current (last) lexed token.
+  const AsmToken &getTok() {
+    return CurTok;
+  }
+  
+  /// getErrLoc - Get the current error location
+  const SMLoc &getErrLoc() {
+    return ErrLoc;
+  }
+  
+  /// getErr - Get the current error string
+  const std::string &getErr() {
+    return Err;
+  }
+  
+  /// getKind - Get the kind of current token.
+  AsmToken::TokenKind getKind() const { return CurTok.getKind(); }
+  
+  /// is - Check if the current token has kind \arg K.
+  bool is(AsmToken::TokenKind K) const { return CurTok.is(K); }
+  
+  /// isNot - Check if the current token has kind \arg K.
+  bool isNot(AsmToken::TokenKind K) const { return CurTok.isNot(K); }
+};
+
+} // End llvm namespace
+
+#endif