Fix warning when assertions disabled.

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

diff --git a/lib/AsmParser/Parser.cpp b/lib/AsmParser/Parser.cpp
index 7af313348d29b1bb9412ef06980636f791772aa1..0005e11737b8e781c4e79c80dd3231168da7555a 100644 (file)
--- a/lib/AsmParser/Parser.cpp
+++ b/lib/AsmParser/Parser.cpp
@@ -1,82 +1,90 @@
 //===- Parser.cpp - Main dispatch module for the Parser library -------------===
 //
+//                     The LLVM Compiler Infrastructure
+//
+// 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
 //
 //===------------------------------------------------------------------------===
 
-#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.
-//
-Module *ParseAssemblyFile(const string &Filename) { // throw (ParseException)
-  FILE *F = stdin;
+#include "llvm/Module.h"
+#include "llvm/Support/MemoryBuffer.h"
+#include <cstring>
+using namespace llvm;
 
-  if (Filename != "-") {
-    F = fopen(Filename.c_str(), "r");
 
-    if (F == 0)
-      throw ParseException(Filename, "Could not open file '" + Filename + "'");
-  }
+ParseError* TheParseError = 0; /// FIXME: Not threading friendly
 
-  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
+Module *llvm::ParseAssemblyFile(const std::string &Filename, ParseError* Err) {
+  std::string ErrorStr;
+  MemoryBuffer *F = MemoryBuffer::getFileOrSTDIN(Filename.c_str(), &ErrorStr);
+  if (F == 0) {
+    if (Err)
+      Err->setError(Filename, "Could not open input file '" + Filename + "'");
+    return 0;
   }
+  
+  TheParseError = Err;
+  Module *Result = RunVMAsmParser(F);
+  delete F;
+  return Result;
+}
 
-  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!");
-    }
-  }
+Module *llvm::ParseAssemblyString(const char *AsmString, Module *M, 
+                                  ParseError *Err) {
+  TheParseError = Err;
+  MemoryBuffer *F = MemoryBuffer::getMemBuffer(AsmString, 
+                                               AsmString+strlen(AsmString),
+                                               "<string>");
+  Module *Result = RunVMAsmParser(F);
+  delete F;
   return Result;
 }
 
 
 //===------------------------------------------------------------------------===
-//                              ParseException Class
+//                              ParseError Class
 //===------------------------------------------------------------------------===
 
 
-ParseException::ParseException(const string &filename, const string &message, 
-                              int lineNo, int colNo) 
-  : Filename(filename), Message(message) {
-  LineNo = lineNo; ColumnNo = colNo;
+void ParseError::setError(const std::string &filename,
+                          const std::string &message,
+                          int lineNo, int colNo) {
+  Filename = filename;
+  Message = message;
+  LineNo = lineNo;
+  colNo = colNo;
 }
 
-ParseException::ParseException(const ParseException &E) 
+ParseError::ParseError(const ParseError &E)
   : Filename(E.Filename), Message(E.Message) {
   LineNo = E.LineNo;
   ColumnNo = E.ColumnNo;
 }
 
-const string ParseException::getMessage() const { // Includes info from options
-  string Result;
+// Includes info from options
+const std::string ParseError::getMessage() const {
+  std::string Result;
   char Buffer[10];
 
-  if (Filename == "-") 
+  if (Filename == "-")
     Result += "<stdin>";
   else
     Result += Filename;
 
   if (LineNo != -1) {
     sprintf(Buffer, "%d", LineNo);
-    Result += string(":") + Buffer;
+    Result += std::string(":") + Buffer;
     if (ColumnNo != -1) {
       sprintf(Buffer, "%d", ColumnNo);
-      Result += string(",") + Buffer;
+      Result += std::string(",") + Buffer;
     }
   }
-  
+
   return Result + ": " + Message;
 }