C++ (Cpp) InputArgList::begin Examples

Example #1

File: Driver.cpp Project: Gcrosby5269/clamav-bytecode-compiler

InputArgList *Driver::ParseArgStrings(const char **ArgBegin,
                                      const char **ArgEnd) {
    llvm::PrettyStackTraceString CrashInfo("Command line argument parsing");
    unsigned MissingArgIndex, MissingArgCount;
    InputArgList *Args = getOpts().ParseArgs(ArgBegin, ArgEnd,
                         MissingArgIndex, MissingArgCount);

    // Check for missing argument error.
    if (MissingArgCount)
        Diag(clang::diag::err_drv_missing_argument)
                << Args->getArgString(MissingArgIndex) << MissingArgCount;

    // Check for unsupported options.
    for (ArgList::const_iterator it = Args->begin(), ie = Args->end();
            it != ie; ++it) {
        Arg *A = *it;
        if (A->getOption().isUnsupported()) {
            Diag(clang::diag::err_drv_unsupported_opt) << A->getAsString(*Args);
            continue;
        }
    }

    return Args;
}

Example #2

File: cc1_main.cpp Project: lygstate/safecode-mirror

// FIXME: Define the need for this testing away.
static int cc1_test(Diagnostic &Diags,
                    const char **ArgBegin, const char **ArgEnd) {
  using namespace clang::driver;

  llvm::errs() << "cc1 argv:";
  for (const char **i = ArgBegin; i != ArgEnd; ++i)
    llvm::errs() << " \"" << *i << '"';
  llvm::errs() << "\n";

  // Parse the arguments.
  OptTable *Opts = createCC1OptTable();
  unsigned MissingArgIndex, MissingArgCount;
  InputArgList *Args = Opts->ParseArgs(ArgBegin, ArgEnd,
                                       MissingArgIndex, MissingArgCount);

  // Check for missing argument error.
  if (MissingArgCount)
    Diags.Report(clang::diag::err_drv_missing_argument)
      << Args->getArgString(MissingArgIndex) << MissingArgCount;

  // Dump the parsed arguments.
  llvm::errs() << "cc1 parsed options:\n";
  for (ArgList::const_iterator it = Args->begin(), ie = Args->end();
       it != ie; ++it)
    (*it)->dump();

  // Create a compiler invocation.
  llvm::errs() << "cc1 creating invocation.\n";
  CompilerInvocation Invocation;
  CompilerInvocation::CreateFromArgs(Invocation, ArgBegin, ArgEnd, Diags);

  // Convert the invocation back to argument strings.
  std::vector<std::string> InvocationArgs;
  Invocation.toArgs(InvocationArgs);

  // Dump the converted arguments.
  SmallVector<const char*, 32> Invocation2Args;
  llvm::errs() << "invocation argv :";
  for (unsigned i = 0, e = InvocationArgs.size(); i != e; ++i) {
    Invocation2Args.push_back(InvocationArgs[i].c_str());
    llvm::errs() << " \"" << InvocationArgs[i] << '"';
  }
  llvm::errs() << "\n";

  // Convert those arguments to another invocation, and check that we got the
  // same thing.
  CompilerInvocation Invocation2;
  CompilerInvocation::CreateFromArgs(Invocation2, Invocation2Args.begin(),
                                     Invocation2Args.end(), Diags);

  // FIXME: Implement CompilerInvocation comparison.
  if (true) {
    //llvm::errs() << "warning: Invocations differ!\n";

    std::vector<std::string> Invocation2Args;
    Invocation2.toArgs(Invocation2Args);
    llvm::errs() << "invocation2 argv:";
    for (unsigned i = 0, e = Invocation2Args.size(); i != e; ++i)
      llvm::errs() << " \"" << Invocation2Args[i] << '"';
    llvm::errs() << "\n";
  }

  return 0;
}