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      1 //===--- DriverOptions.cpp - Driver Options Table -------------------------===//
      2 //
      3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
      4 // See https://llvm.org/LICENSE.txt for license information.
      5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
      6 //
      7 //===----------------------------------------------------------------------===//
      8 
      9 #include "clang/Driver/Options.h"
     10 #include "llvm/ADT/STLExtras.h"
     11 #include "llvm/Option/OptTable.h"
     12 #include "llvm/Option/Option.h"
     13 #include <cassert>
     14 
     15 using namespace clang::driver;
     16 using namespace clang::driver::options;
     17 using namespace llvm::opt;
     18 
     19 #define PREFIX(NAME, VALUE) static const char *const NAME[] = VALUE;
     20 #include "clang/Driver/Options.inc"
     21 #undef PREFIX
     22 
     23 static const OptTable::Info InfoTable[] = {
     24 #define OPTION(PREFIX, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM,  \
     25                HELPTEXT, METAVAR, VALUES)                                      \
     26   {PREFIX, NAME,  HELPTEXT,    METAVAR,     OPT_##ID,  Option::KIND##Class,    \
     27    PARAM,  FLAGS, OPT_##GROUP, OPT_##ALIAS, ALIASARGS, VALUES},
     28 #include "clang/Driver/Options.inc"
     29 #undef OPTION
     30 };
     31 
     32 namespace {
     33 
     34 class DriverOptTable : public OptTable {
     35 public:
     36   DriverOptTable()
     37     : OptTable(InfoTable) {}
     38 };
     39 
     40 }
     41 
     42 const llvm::opt::OptTable &clang::driver::getDriverOptTable() {
     43   static const DriverOptTable *Table = []() {
     44     auto Result = std::make_unique<DriverOptTable>();
     45     // Options.inc is included in DriverOptions.cpp, and calls OptTable's
     46     // addValues function.
     47     // Opt is a variable used in the code fragment in Options.inc.
     48     OptTable &Opt = *Result;
     49 #define OPTTABLE_ARG_INIT
     50 #include "clang/Driver/Options.inc"
     51 #undef OPTTABLE_ARG_INIT
     52     return Result.release();
     53   }();
     54   return *Table;
     55 }
     56