clang/lib/Driver/DriverOptions.cpp

   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 OPTTABLE_VALUES_CODE
  20 #include "clang/Driver/Options.inc"
  21 #undef OPTTABLE_VALUES_CODE
  22
  23 #define PREFIX(NAME, VALUE)                                                    \
  24   static constexpr llvm::StringLiteral NAME##_init[] = VALUE;                  \
  25   static constexpr llvm::ArrayRef<llvm::StringLiteral> NAME(                   \
  26       NAME##_init, std::size(NAME##_init) - 1);
  27 #include "clang/Driver/Options.inc"
  28 #undef PREFIX
  29
  30 static constexpr const llvm::StringLiteral PrefixTable_init[] =
  31 #define PREFIX_UNION(VALUES) VALUES
  32 #include "clang/Driver/Options.inc"
  33 #undef PREFIX_UNION
  34     ;
  35 static constexpr const llvm::ArrayRef<llvm::StringLiteral>
  36     PrefixTable(PrefixTable_init, std::size(PrefixTable_init) - 1);
  37
  38 static constexpr OptTable::Info InfoTable[] = {
  39 #define OPTION(PREFIX, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM,  \
  40                HELPTEXT, METAVAR, VALUES)                                      \
  41   {PREFIX, NAME,  HELPTEXT,    METAVAR,     OPT_##ID,  Option::KIND##Class,    \
  42    PARAM,  FLAGS, OPT_##GROUP, OPT_##ALIAS, ALIASARGS, VALUES},
  43 #include "clang/Driver/Options.inc"
  44 #undef OPTION
  45 };
  46
  47 namespace {
  48
  49 class DriverOptTable : public PrecomputedOptTable {
  50 public:
  51   DriverOptTable() : PrecomputedOptTable(InfoTable, PrefixTable) {}
  52 };
  53 }
  54
  55 const llvm::opt::OptTable &clang::driver::getDriverOptTable() {
  56   static DriverOptTable Table;
  57   return Table;
  58 }