- try {
- // Parse the input file.
- OwningPtr<MemoryBuffer> File;
- if (error_code ec = MemoryBuffer::getFileOrSTDIN(InputFilename.c_str(), File)) {
- errs() << "Could not open input file '" << InputFilename << "': "
- << ec.message() <<"\n";
- return 1;
- }
- MemoryBuffer *F = File.take();
-
- // Tell SrcMgr about this buffer, which is what TGParser will pick up.
- SrcMgr.AddNewSourceBuffer(F, SMLoc());
-
- // Record the location of the include directory so that the lexer can find
- // it later.
- SrcMgr.setIncludeDirs(IncludeDirs);
-
- // TODO(clchiou): Integrate preprocessor into TGParser
- if (PreprocessOnly) {
- std::string Error;
- tool_output_file Out(OutputFilename.c_str(), Error);
- if (!Error.empty()) {
- errs() << argv0 << ": error opening " << OutputFilename
- << ":" << Error << "\n";
- return 1;
- }
- TGPreprocessor Preprocessor(SrcMgr, Out);
- if (Preprocessor.PreprocessFile())
- return 1;
- Out.keep();
- return 0;
- }
-
- TGParser Parser(SrcMgr, Records);
-
- if (Parser.ParseFile())
- return 1;
-
- std::string Error;
- tool_output_file Out(OutputFilename.c_str(), Error);
- if (!Error.empty()) {
- errs() << argv0 << ": error opening " << OutputFilename
- << ":" << Error << "\n";
- return 1;
- }
- if (!DependFilename.empty()) {
- if (OutputFilename == "-") {
- errs() << argv0 << ": the option -d must be used together with -o\n";
- return 1;
- }
- tool_output_file DepOut(DependFilename.c_str(), Error);
- if (!Error.empty()) {
- errs() << argv0 << ": error opening " << DependFilename
- << ":" << Error << "\n";
- return 1;
- }
- DepOut.os() << OutputFilename << ":";
- const std::vector<std::string> &Dependencies = Parser.getDependencies();
- for (std::vector<std::string>::const_iterator I = Dependencies.begin(),
- E = Dependencies.end();
- I != E; ++I) {
- DepOut.os() << " " << (*I);
- }
- DepOut.os() << "\n";
- DepOut.keep();
- }
-
- if (Action(Out.os(), Records))
- return 1;
-
- // Declare success.
- Out.keep();
- return 0;
-
- } catch (const TGError &Error) {
- PrintError(Error);
- } catch (const std::string &Error) {
- PrintError(Error);
- } catch (const char *Error) {
- PrintError(Error);
- } catch (...) {
- errs() << argv0 << ": Unknown unexpected exception occurred.\n";