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//===- Parser.cpp - Main dispatch module for the Parser library -------------===
//
// This library implements the functionality defined in llvm/assembly/parser.h
//
//===------------------------------------------------------------------------===
#include "llvm/Analysis/Verifier.h"
#include "llvm/Module.h"
#include "ParserInternals.h"
#include <stdio.h> // for sprintf
// 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 ToolCommandLine &Opts) throw (ParseException) {
FILE *F = stdin;
if (Opts.getInputFilename() != "-")
F = fopen(Opts.getInputFilename().c_str(), "r");
if (F == 0) {
throw ParseException(Opts, string("Could not open file '") +
Opts.getInputFilename() + "'");
}
// TODO: If this throws an exception, F is not closed.
Module *Result = RunVMAsmParser(Opts, F);
if (F != stdin)
fclose(F);
if (Result) { // Check to see that it is valid...
vector<string> Errors;
if (verify(Result, Errors)) {
delete Result; Result = 0;
string Message;
for (unsigned i = 0; i < Errors.size(); i++)
Message += Errors[i] + "\n";
throw ParseException(Opts, Message);
}
}
return Result;
}
//===------------------------------------------------------------------------===
// ParseException Class
//===------------------------------------------------------------------------===
ParseException::ParseException(const ToolCommandLine &opts,
const string &message, int lineNo, int colNo)
: Opts(opts), Message(message) {
LineNo = lineNo; ColumnNo = colNo;
}
ParseException::ParseException(const ParseException &E)
: Opts(E.Opts), Message(E.Message) {
LineNo = E.LineNo;
ColumnNo = E.ColumnNo;
}
const string ParseException::getMessage() const { // Includes info from options
string Result;
char Buffer[10];
if (Opts.getInputFilename() == "-")
Result += "<stdin>";
else
Result += Opts.getInputFilename();
if (LineNo != -1) {
sprintf(Buffer, "%d", LineNo);
Result += string(":") + Buffer;
if (ColumnNo != -1) {
sprintf(Buffer, "%d", ColumnNo);
Result += string(",") + Buffer;
}
}
return Result + ": " + Message;
}
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