Prevent clang-format from moving the namespace closing brace, NFC

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

diff --git a/lib/AsmParser/Parser.cpp b/lib/AsmParser/Parser.cpp
index 7af313348d29b1bb9412ef06980636f791772aa1..6cae013b129070fc3ea490313cb6875fd4203340 100644 (file)
--- a/lib/AsmParser/Parser.cpp
+++ b/lib/AsmParser/Parser.cpp
@@ -1,82 +1,60 @@
-//===- Parser.cpp - Main dispatch module for the Parser library -------------===
+//===- Parser.cpp - Main dispatch module for the Parser library -----------===//
 //
-// This library implements the functionality defined in llvm/assembly/parser.h
+//                     The LLVM Compiler Infrastructure
 //
-//===------------------------------------------------------------------------===
-
-#include "llvm/Analysis/Verifier.h"
-#include "llvm/Module.h"
-#include "ParserInternals.h"
-using std::string;
-
-// The useful interface defined by this file... Parse an ascii file, and return
-// the internal representation in a nice slice'n'dice'able representation.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
 //
-Module *ParseAssemblyFile(const string &Filename) { // throw (ParseException)
-  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);
-
-  if (Result) {  // Check to see that it is valid...
-    if (verifyModule(*Result)) {
-      delete Result;
-      throw ParseException(Filename, "Source file is not well formed LLVM!");
-    }
-  }
-  return Result;
+//===----------------------------------------------------------------------===//
+//
+// This library implements the functionality defined in llvm/AsmParser/Parser.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 <cstring>
+#include <system_error>
+using namespace llvm;
+
+Module *llvm::ParseAssembly(std::unique_ptr<MemoryBuffer> F, Module *M,
+                            SMDiagnostic &Err, LLVMContext &Context) {
+  SourceMgr SM;
+  MemoryBuffer *Buf = F.get();
+  SM.AddNewSourceBuffer(F.release(), SMLoc());
+
+  // If we are parsing into an existing module, do it.
+  if (M)
+    return LLParser(Buf->getBuffer(), SM, Err, M).Run() ? nullptr : M;
+
+  // Otherwise create a new module.
+  std::unique_ptr<Module> M2(new Module(Buf->getBufferIdentifier(), Context));
+  if (LLParser(Buf->getBuffer(), SM, Err, M2.get()).Run())
+    return nullptr;
+  return M2.release();
 }
 
+Module *llvm::ParseAssemblyFile(const std::string &Filename, SMDiagnostic &Err,
+                                LLVMContext &Context) {
+  ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr =
+      MemoryBuffer::getFileOrSTDIN(Filename);
+  if (std::error_code EC = FileOrErr.getError()) {
+    Err = SMDiagnostic(Filename, SourceMgr::DK_Error,
+                       "Could not open input file: " + EC.message());
+    return nullptr;
+  }
 
-//===------------------------------------------------------------------------===
-//                              ParseException Class
-//===------------------------------------------------------------------------===
-
-
-ParseException::ParseException(const string &filename, const 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(std::move(FileOrErr.get()), nullptr, Err, Context);
 }
 
-const string ParseException::getMessage() const { // Includes info from options
-  string Result;
-  char Buffer[10];
+Module *llvm::ParseAssemblyString(const char *AsmString, Module *M,
+                                  SMDiagnostic &Err, LLVMContext &Context) {
+  MemoryBuffer *F =
+      MemoryBuffer::getMemBuffer(StringRef(AsmString), "<string>");
 
-  if (Filename == "-") 
-    Result += "<stdin>";
-  else
-    Result += Filename;
-
-  if (LineNo != -1) {
-    sprintf(Buffer, "%d", LineNo);
-    Result += string(":") + Buffer;
-    if (ColumnNo != -1) {
-      sprintf(Buffer, "%d", ColumnNo);
-      Result += string(",") + Buffer;
-    }
-  }
-  
-  return Result + ": " + Message;
+  return ParseAssembly(std::unique_ptr<MemoryBuffer>(F), M, Err, Context);
 }