clang-tools  14.0.0git
ClangReorderFields.cpp
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1 //===-- tools/extra/clang-reorder-fields/tool/ClangReorderFields.cpp -*- C++ -*-===//
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 /// \file
10 /// This file contains the implementation of clang-reorder-fields tool
11 ///
12 //===----------------------------------------------------------------------===//
13 
14 #include "../ReorderFieldsAction.h"
15 #include "clang/Basic/Diagnostic.h"
16 #include "clang/Basic/DiagnosticOptions.h"
17 #include "clang/Basic/FileManager.h"
18 #include "clang/Basic/LangOptions.h"
19 #include "clang/Basic/SourceManager.h"
20 #include "clang/Frontend/TextDiagnosticPrinter.h"
21 #include "clang/Rewrite/Core/Rewriter.h"
22 #include "clang/Tooling/CommonOptionsParser.h"
23 #include "clang/Tooling/Refactoring.h"
24 #include "clang/Tooling/Tooling.h"
25 #include "llvm/ADT/IntrusiveRefCntPtr.h"
26 #include "llvm/Support/CommandLine.h"
27 #include "llvm/Support/FileSystem.h"
28 #include <cstdlib>
29 #include <string>
30 #include <system_error>
31 
32 using namespace llvm;
33 using namespace clang;
34 
35 cl::OptionCategory ClangReorderFieldsCategory("clang-reorder-fields options");
36 
37 static cl::opt<std::string>
38  RecordName("record-name", cl::Required,
39  cl::desc("The name of the struct/class."),
41 
42 static cl::list<std::string> FieldsOrder("fields-order", cl::CommaSeparated,
43  cl::OneOrMore,
44  cl::desc("The desired fields order."),
46 
47 static cl::opt<bool> Inplace("i", cl::desc("Overwrite edited files."),
49 
50 const char Usage[] = "A tool to reorder fields in C/C++ structs/classes.\n";
51 
52 int main(int argc, const char **argv) {
53  auto ExpectedParser = tooling::CommonOptionsParser::create(
54  argc, argv, ClangReorderFieldsCategory, cl::OneOrMore, Usage);
55  if (!ExpectedParser) {
56  llvm::errs() << ExpectedParser.takeError();
57  return 1;
58  }
59 
60  tooling::CommonOptionsParser &OP = ExpectedParser.get();
61 
62  auto Files = OP.getSourcePathList();
63  tooling::RefactoringTool Tool(OP.getCompilations(), Files);
64 
66  Tool.getReplacements());
67 
68  auto Factory = tooling::newFrontendActionFactory(&Action);
69 
70  if (Inplace)
71  return Tool.runAndSave(Factory.get());
72 
73  int ExitCode = Tool.run(Factory.get());
74  LangOptions DefaultLangOptions;
75  IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts(new DiagnosticOptions());
76  TextDiagnosticPrinter DiagnosticPrinter(errs(), &*DiagOpts);
77  DiagnosticsEngine Diagnostics(
78  IntrusiveRefCntPtr<DiagnosticIDs>(new DiagnosticIDs()), &*DiagOpts,
79  &DiagnosticPrinter, false);
80 
81  auto &FileMgr = Tool.getFiles();
82  SourceManager Sources(Diagnostics, FileMgr);
83  Rewriter Rewrite(Sources, DefaultLangOptions);
84  Tool.applyAllReplacements(Rewrite);
85 
86  for (const auto &File : Files) {
87  auto Entry = FileMgr.getFile(File);
88  const auto ID = Sources.getOrCreateFileID(*Entry, SrcMgr::C_User);
89  Rewrite.getEditBuffer(ID).write(outs());
90  }
91 
92  return ExitCode;
93 }
clang::reorder_fields::ReorderFieldsAction
Definition: ReorderFieldsAction.h:25
llvm
Some operations such as code completion produce a set of candidates.
Definition: YAMLGenerator.cpp:28
Usage
const char Usage[]
Definition: ClangReorderFields.cpp:50
Diagnostics
WantDiagnostics Diagnostics
Definition: TUScheduler.cpp:561
Action
llvm::unique_function< void()> Action
Definition: TUScheduler.cpp:596
RecordName
static cl::opt< std::string > RecordName("record-name", cl::Required, cl::desc("The name of the struct/class."), cl::cat(ClangReorderFieldsCategory))
ClangReorderFieldsCategory
cl::OptionCategory ClangReorderFieldsCategory("clang-reorder-fields options")
Entry
Definition: Modularize.cpp:428
main
int main(int argc, const char **argv)
Definition: ClangReorderFields.cpp:52
ID
static char ID
Definition: Logger.cpp:74
FieldsOrder
static cl::list< std::string > FieldsOrder("fields-order", cl::CommaSeparated, cl::OneOrMore, cl::desc("The desired fields order."), cl::cat(ClangReorderFieldsCategory))
clang
===– Representation.cpp - ClangDoc Representation --------—*- C++ -*-===//
Definition: ApplyReplacements.h:27
Inplace
static cl::opt< bool > Inplace("i", cl::desc("Overwrite edited files."), cl::cat(ClangReorderFieldsCategory))