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(...) LLVM_CONSTRUCT_OPT_INFO(__VA_ARGS__),
  40 #include "clang/Driver/Options.inc"
  41 #undef OPTION
  42 };
  43
  44 namespace {
  45
  46 class DriverOptTable : public PrecomputedOptTable {
  47 public:
  48   DriverOptTable() : PrecomputedOptTable(InfoTable, PrefixTable) {}
  49 };
  50 }
  51
  52 const llvm::opt::OptTable &clang::driver::getDriverOptTable() {
  53   static DriverOptTable Table;
  54   return Table;
  55 }