Parser.cpp revision 61c83e023fe618ca7b4fdc846039933e61a00ec9 
1//===- Parser.cpp - Main dispatch module for the Parser library -------------===
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file was developed by the LLVM research group and is distributed under
6// the University of Illinois Open Source License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// This library implements the functionality defined in llvm/assembly/parser.h
11//
12//===------------------------------------------------------------------------===
13
14#include "ParserInternals.h"
15#include "llvm/Module.h"
16using namespace llvm;
17
18
19ParseError* TheParseError = 0; /// FIXME: Not threading friendly
20
21Module *llvm::ParseAssemblyFile(const std::string &Filename, ParseError* Err) {
22  FILE *F = stdin;
23
24  if (Filename != "-") {
25    F = fopen(Filename.c_str(), "r");
26
27    if (F == 0) {
28      if (Err)
29        Err->setError(Filename,"Could not open file '" + Filename + "'");
30      return 0;
31    }
32  }
33
34  TheParseError = Err;
35  Module *Result = RunVMAsmParser(Filename, F);
36
37  if (F != stdin)
38    fclose(F);
39
40  return Result;
41}
42
43Module *llvm::ParseAssemblyString(
44  const char * AsmString, Module * M, ParseError* Err)
45{
46  TheParseError = Err;
47  return RunVMAsmParser(AsmString, M);
48}
49
50
51//===------------------------------------------------------------------------===
52//                              ParseError Class
53//===------------------------------------------------------------------------===
54
55
56void ParseError::setError(const std::string &filename,
57                         const std::string &message,
58                         int lineNo, int colNo)
59{
60  Filename = filename;
61  Message = message;
62  LineNo = lineNo;
63  colNo = colNo;
64}
65
66ParseError::ParseError(const ParseError &E)
67  : Filename(E.Filename), Message(E.Message) {
68  LineNo = E.LineNo;
69  ColumnNo = E.ColumnNo;
70}
71
72// Includes info from options
73const std::string ParseError::getMessage() const {
74  std::string Result;
75  char Buffer[10];
76
77  if (Filename == "-")
78    Result += "<stdin>";
79  else
80    Result += Filename;
81
82  if (LineNo != -1) {
83    sprintf(Buffer, "%d", LineNo);
84    Result += std::string(":") + Buffer;
85    if (ColumnNo != -1) {
86      sprintf(Buffer, "%d", ColumnNo);
87      Result += std::string(",") + Buffer;
88    }
89  }
90
91  return Result + ": " + Message;
92}
93