clang  9.0.0svn
DriverOptions.cpp
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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 std::unique_ptr<OptTable> clang::driver::createDriverOptTable() {
43  auto Result = llvm::make_unique<DriverOptTable>();
44  // Options.inc is included in DriverOptions.cpp, and calls OptTable's
45  // addValues function.
46  // Opt is a variable used in the code fragment in Options.inc.
47  OptTable &Opt = *Result;
48 #define OPTTABLE_ARG_INIT
49 #include "clang/Driver/Options.inc"
50 #undef OPTTABLE_ARG_INIT
51  return std::move(Result);
52 }
static const OptTable::Info InfoTable[]
std::unique_ptr< llvm::opt::OptTable > createDriverOptTable()