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//===-- ClangMoveMain.cpp - move defintion to new file ----------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "ClangMove.h"
#include "clang/Frontend/TextDiagnosticPrinter.h"
#include "clang/Rewrite/Core/Rewriter.h"
#include "clang/Tooling/CommonOptionsParser.h"
#include "clang/Tooling/Refactoring.h"
#include "clang/Tooling/Tooling.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/Process.h"
#include "llvm/Support/Signals.h"
#include "llvm/Support/YAMLTraits.h"
#include <set>
#include <string>
using namespace clang;
using namespace llvm;
namespace {
std::error_code CreateNewFile(const llvm::Twine &path) {
int fd = 0;
if (std::error_code ec =
llvm::sys::fs::openFileForWrite(path, fd, llvm::sys::fs::F_Text))
return ec;
return llvm::sys::Process::SafelyCloseFileDescriptor(fd);
}
cl::OptionCategory ClangMoveCategory("clang-move options");
cl::list<std::string> Names("names", cl::CommaSeparated, cl::OneOrMore,
cl::desc("The list of the names of classes being "
"moved, e.g. \"Foo,a::Foo,b::Foo\"."),
cl::cat(ClangMoveCategory));
cl::opt<std::string>
OldHeader("old_header",
cl::desc("The relative/absolute file path of old header."),
cl::cat(ClangMoveCategory));
cl::opt<std::string>
OldCC("old_cc", cl::desc("The relative/absolute file path of old cc."),
cl::cat(ClangMoveCategory));
cl::opt<std::string>
NewHeader("new_header",
cl::desc("The relative/absolute file path of new header."),
cl::cat(ClangMoveCategory));
cl::opt<std::string>
NewCC("new_cc", cl::desc("The relative/absolute file path of new cc."),
cl::cat(ClangMoveCategory));
cl::opt<std::string>
Style("style",
cl::desc("The style name used for reformatting. Default is \"llvm\""),
cl::init("llvm"), cl::cat(ClangMoveCategory));
cl::opt<bool> Dump("dump_result",
cl::desc("Dump results in JSON format to stdout."),
cl::cat(ClangMoveCategory));
} // namespace
int main(int argc, const char **argv) {
llvm::sys::PrintStackTraceOnErrorSignal(argv[0]);
// Add "-fparse-all-comments" compile option to make clang parse all comments,
// otherwise, ordinary comments like "//" and "/*" won't get parsed (This is
// a bit of hacky).
std::vector<std::string> ExtraArgs(argv, argv + argc);
ExtraArgs.insert(ExtraArgs.begin() + 1, "-extra-arg=-fparse-all-comments");
std::unique_ptr<const char *[]> RawExtraArgs(
new const char *[ExtraArgs.size()]);
for (size_t i = 0; i < ExtraArgs.size(); ++i)
RawExtraArgs[i] = ExtraArgs[i].c_str();
int Argc = argc + 1;
tooling::CommonOptionsParser OptionsParser(Argc, RawExtraArgs.get(),
ClangMoveCategory);
tooling::RefactoringTool Tool(OptionsParser.getCompilations(),
OptionsParser.getSourcePathList());
move::ClangMoveTool::MoveDefinitionSpec Spec;
Spec.Names = {Names.begin(), Names.end()};
Spec.OldHeader = OldHeader;
Spec.NewHeader = NewHeader;
Spec.OldCC = OldCC;
Spec.NewCC = NewCC;
llvm::SmallString<128> InitialDirectory;
if (std::error_code EC = llvm::sys::fs::current_path(InitialDirectory))
llvm::report_fatal_error("Cannot detect current path: " +
Twine(EC.message()));
auto Factory = llvm::make_unique<clang::move::ClangMoveActionFactory>(
Spec, Tool.getReplacements(), InitialDirectory.str(), Style);
int CodeStatus = Tool.run(Factory.get());
if (CodeStatus)
return CodeStatus;
if (!NewCC.empty()) {
std::error_code EC = CreateNewFile(NewCC);
if (EC) {
llvm::errs() << "Failed to create " << NewCC << ": " << EC.message()
<< "\n";
return EC.value();
}
}
if (!NewHeader.empty()) {
std::error_code EC = CreateNewFile(NewHeader);
if (EC) {
llvm::errs() << "Failed to create " << NewHeader << ": " << EC.message()
<< "\n";
return EC.value();
}
}
IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts(new DiagnosticOptions());
clang::TextDiagnosticPrinter DiagnosticPrinter(errs(), &*DiagOpts);
DiagnosticsEngine Diagnostics(
IntrusiveRefCntPtr<DiagnosticIDs>(new DiagnosticIDs()), &*DiagOpts,
&DiagnosticPrinter, false);
auto &FileMgr = Tool.getFiles();
SourceManager SM(Diagnostics, FileMgr);
Rewriter Rewrite(SM, LangOptions());
if (!formatAndApplyAllReplacements(Tool.getReplacements(), Rewrite, Style)) {
llvm::errs() << "Failed applying all replacements.\n";
return 1;
}
if (Dump) {
std::set<llvm::StringRef> Files;
for (const auto &it : Tool.getReplacements())
Files.insert(it.first);
auto WriteToJson = [&](llvm::raw_ostream &OS) {
OS << "[\n";
for (auto File : Files) {
OS << " {\n";
OS << " \"FilePath\": \"" << File << "\",\n";
const auto *Entry = FileMgr.getFile(File);
auto ID = SM.translateFile(Entry);
std::string Content;
llvm::raw_string_ostream ContentStream(Content);
Rewrite.getEditBuffer(ID).write(ContentStream);
OS << " \"SourceText\": \""
<< llvm::yaml::escape(ContentStream.str()) << "\"\n";
OS << " }";
if (File != *(--Files.end()))
OS << ",\n";
}
OS << "\n]\n";
};
WriteToJson(llvm::outs());
return 0;
}
return Rewrite.overwriteChangedFiles();
}
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