Replace OwningPtr<T> with std::unique_ptr<T>.

[oota-llvm.git] / lib / AsmParser / Parser.cpp

diff --git a/lib/AsmParser/Parser.cpp b/lib/AsmParser/Parser.cpp
index b7ece9fdc52f38a992308f34a8c1b04586f7a9b5..a1da5e11639ed1512fce926fe9918f1d59945fe7 100644 (file)
--- a/lib/AsmParser/Parser.cpp
+++ b/lib/AsmParser/Parser.cpp
@@ -1,84 +1,61 @@
-//===- Parser.cpp - Main dispatch module for the Parser library -------------===
-// 
+//===- Parser.cpp - Main dispatch module for the Parser library -----------===//
+//
 //                     The LLVM Compiler Infrastructure
 //
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
-// 
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
 //===----------------------------------------------------------------------===//
 //
-// This library implements the functionality defined in llvm/assembly/parser.h
+// This library implements the functionality defined in llvm/AsmParser/Parser.h
 //
-//===------------------------------------------------------------------------===
+//===----------------------------------------------------------------------===//
 
-#include "ParserInternals.h"
-#include "llvm/Module.h"
+#include "llvm/AsmParser/Parser.h"
+#include "LLParser.h"
+#include "llvm/IR/Module.h"
+#include "llvm/Support/MemoryBuffer.h"
+#include "llvm/Support/SourceMgr.h"
+#include "llvm/Support/raw_ostream.h"
+#include "llvm/Support/system_error.h"
+#include <cstring>
 using namespace llvm;
 
-// The useful interface defined by this file... Parse an ASCII file, and return
-// the internal representation in a nice slice'n'dice'able representation.
-//
-Module *llvm::ParseAssemblyFile(const std::string &Filename) {
-  FILE *F = stdin;
-
-  if (Filename != "-") {
-    F = fopen(Filename.c_str(), "r");
-
-    if (F == 0)
-      throw ParseException(Filename, "Could not open file '" + Filename + "'");
-  }
-
-  Module *Result;
-  try {
-    Result = RunVMAsmParser(Filename, F);
-  } catch (...) {
-    if (F != stdin) fclose(F);      // Make sure to close file descriptor if an
-    throw;                          // exception is thrown
-  }
-
-  if (F != stdin)
-    fclose(F);
-
-  return Result;
+Module *llvm::ParseAssembly(MemoryBuffer *F,
+                            Module *M,
+                            SMDiagnostic &Err,
+                            LLVMContext &Context) {
+  SourceMgr SM;
+  SM.AddNewSourceBuffer(F, SMLoc());
+
+  // If we are parsing into an existing module, do it.
+  if (M)
+    return LLParser(F, SM, Err, M).Run() ? 0 : M;
+
+  // Otherwise create a new module.
+  std::unique_ptr<Module> M2(new Module(F->getBufferIdentifier(), Context));
+  if (LLParser(F, SM, Err, M2.get()).Run())
+    return 0;
+  return M2.release();
 }
 
+Module *llvm::ParseAssemblyFile(const std::string &Filename, SMDiagnostic &Err,
+                                LLVMContext &Context) {
+  std::unique_ptr<MemoryBuffer> File;
+  if (error_code ec = MemoryBuffer::getFileOrSTDIN(Filename, File)) {
+    Err = SMDiagnostic(Filename, SourceMgr::DK_Error,
+                       "Could not open input file: " + ec.message());
+    return 0;
+  }
 
-//===------------------------------------------------------------------------===
-//                              ParseException Class
-//===------------------------------------------------------------------------===
-
-
-ParseException::ParseException(const std::string &filename,
-                               const std::string &message, 
-                              int lineNo, int colNo) 
-  : Filename(filename), Message(message) {
-  LineNo = lineNo; ColumnNo = colNo;
-}
-
-ParseException::ParseException(const ParseException &E) 
-  : Filename(E.Filename), Message(E.Message) {
-  LineNo = E.LineNo;
-  ColumnNo = E.ColumnNo;
+  return ParseAssembly(File.release(), 0, Err, Context);
 }
 
-// Includes info from options
-const std::string ParseException::getMessage() const { 
-  std::string Result;
-  char Buffer[10];
+Module *llvm::ParseAssemblyString(const char *AsmString, Module *M,
+                                  SMDiagnostic &Err, LLVMContext &Context) {
+  MemoryBuffer *F =
+    MemoryBuffer::getMemBuffer(StringRef(AsmString, strlen(AsmString)),
+                               "<string>");
 
-  if (Filename == "-") 
-    Result += "<stdin>";
-  else
-    Result += Filename;
-
-  if (LineNo != -1) {
-    sprintf(Buffer, "%d", LineNo);
-    Result += std::string(":") + Buffer;
-    if (ColumnNo != -1) {
-      sprintf(Buffer, "%d", ColumnNo);
-      Result += std::string(",") + Buffer;
-    }
-  }
-  
-  return Result + ": " + Message;
+  return ParseAssembly(F, M, Err, Context);
 }