Import LLVM, at r72732.vendor/llvm/llvm-r72732

1 files changed, 101 insertions, 0 deletions

diff --git a/include/llvm/Assembly/Parser.h b/include/llvm/Assembly/Parser.h
new file mode 100644
index 000000000000..e4a38e41b67a
--- /dev/null
+++ b/include/llvm/Assembly/Parser.h
@@ -0,0 +1,101 @@
+//===-- llvm/Assembly/Parser.h - Parser for VM assembly files ---*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+//  These classes are implemented by the lib/AsmParser library.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_ASSEMBLY_PARSER_H
+#define LLVM_ASSEMBLY_PARSER_H
+
+#include <string>
+
+namespace llvm {
+
+class Module;
+class ParseError;
+class raw_ostream;
+
+/// This function is the main interface to the LLVM Assembly Parser. It parses
+/// an ASCII file that (presumably) contains LLVM Assembly code. It returns a
+/// Module (intermediate representation) with the corresponding features. Note
+/// that this does not verify that the generated Module is valid, so you should
+/// run the verifier after parsing the file to check that it is okay.
+/// @brief Parse LLVM Assembly from a file
+Module *ParseAssemblyFile(
+  const std::string &Filename, ///< The name of the file to parse
+  ParseError &Error            ///< If not null, an object to return errors in.
+);
+
+/// The function is a secondary interface to the LLVM Assembly Parser. It parses
+/// an ASCII string that (presumably) contains LLVM Assembly code. It returns a
+/// Module (intermediate representation) with the corresponding features. Note
+/// that this does not verify that the generated Module is valid, so you should
+/// run the verifier after parsing the file to check that it is okay.
+/// @brief Parse LLVM Assembly from a string
+Module *ParseAssemblyString(
+  const char *AsmString, ///< The string containing assembly
+  Module *M,             ///< A module to add the assembly too.
+  ParseError &Error      ///< If not null, an object to return errors in.
+);
+
+//===------------------------------------------------------------------------===
+//                              Helper Classes
+//===------------------------------------------------------------------------===
+
+/// An instance of this class can be passed to ParseAssemblyFile or 
+/// ParseAssemblyString functions in order to capture error information from
+/// the parser.  It provides a standard way to print out the error message
+/// including the file name and line number where the error occurred.
+/// @brief An LLVM Assembly Parsing Error Object
+class ParseError {
+public:
+  ParseError() : Filename("unknown"), Message("none"), LineNo(0), ColumnNo(0) {}
+  ParseError(const ParseError &E);
+
+  void setFilename(const std::string &F) { Filename = F; }
+  
+  inline const std::string &getRawMessage() const {   // Just the raw message.
+    return Message;
+  }
+
+  inline const std::string &getFilename() const {
+    return Filename;
+  }
+
+  void setError(const std::string &message, int lineNo = -1, int ColNo = -1,
+                const std::string &FileContents = "") {
+    Message = message;
+    LineNo = lineNo; ColumnNo = ColNo;
+    LineContents = FileContents;
+  }
+
+  // getErrorLocation - Return the line and column number of the error in the
+  // input source file.  The source filename can be derived from the
+  // ParserOptions in effect.  If positional information is not applicable,
+  // these will return a value of -1.
+  //
+  inline void getErrorLocation(int &Line, int &Column) const {
+    Line = LineNo; Column = ColumnNo;
+  }
+  
+  void PrintError(const char *ProgName, raw_ostream &S);
+
+private :
+  std::string Filename;
+  std::string Message;
+  int LineNo, ColumnNo;                               // -1 if not relevant
+  std::string LineContents;
+
+  void operator=(const ParseError &E); // DO NOT IMPLEMENT
+};
+
+} // End llvm namespace
+
+#endif