llvm/clang/tools/arcmt-test/arcmt-test.cpp

//===-- arcmt-test.cpp - ARC Migration Tool testbed -----------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#include "clang/ARCMigrate/ARCMT.h"
#include "clang/AST/ASTContext.h"
#include "clang/Frontend/PCHContainerOperations.h"
#include "clang/Frontend/TextDiagnosticPrinter.h"
#include "clang/Frontend/Utils.h"
#include "clang/Frontend/VerifyDiagnosticConsumer.h"
#include "clang/Lex/Preprocessor.h"
#include "clang/Lex/PreprocessorOptions.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/Signals.h"
#include <system_error>

usingnamespaceclang;
usingnamespacearcmt;

static llvm::cl::opt<bool>
CheckOnly("check-only",
      llvm::cl::desc("Just check for issues that need to be handled manually"));

//static llvm::cl::opt<bool>
//TestResultForARC("test-result",
//llvm::cl::desc("Test the result of transformations by parsing it in ARC mode"));

static llvm::cl::opt<bool>
OutputTransformations("output-transformations",
                      llvm::cl::desc("Print the source transformations"));

static llvm::cl::opt<bool>
VerifyDiags("verify",llvm::cl::desc("Verify emitted diagnostics and warnings"));

static llvm::cl::opt<bool>
VerboseOpt("v", llvm::cl::desc("Enable verbose output"));

static llvm::cl::opt<bool>
VerifyTransformedFiles("verify-transformed-files",
llvm::cl::desc("Read pairs of file mappings (typically the output of "
               "c-arcmt-test) and compare their contents with the filenames "
               "provided in command-line"));

static llvm::cl::opt<std::string>
RemappingsFile("remappings-file",
               llvm::cl::desc("Pairs of file mappings (typically the output of "
               "c-arcmt-test)"));

static llvm::cl::list<std::string>
ResultFiles(llvm::cl::Positional, llvm::cl::desc("<filename>..."));

static llvm::cl::extrahelp extraHelp(
  "\nusage with compiler args: arcmt-test [options] --args [compiler flags]\n");

// This function isn't referenced outside its translation unit, but it
// can't use the "static" keyword because its address is used for
// GetMainExecutable (since some platforms don't support taking the
// address of main, and some platforms can't implement GetMainExecutable
// without being given the address of a function in the main executable).
std::string GetExecutablePath(const char *Argv0) { … }

static void printSourceLocation(SourceLocation loc, ASTContext &Ctx,
                                raw_ostream &OS);
static void printSourceRange(CharSourceRange range, ASTContext &Ctx,
                             raw_ostream &OS);

namespace {

class PrintTransforms : public MigrationProcess::RewriteListener { … };

} // anonymous namespace

static bool checkForMigration(StringRef resourcesPath,
                              ArrayRef<const char *> Args) { … }

static void printResult(FileRemapper &remapper, raw_ostream &OS) { … }

static bool performTransformations(StringRef resourcesPath,
                                   ArrayRef<const char *> Args) { … }

static bool filesCompareEqual(StringRef fname1, StringRef fname2) { … }

static bool verifyTransformedFiles(ArrayRef<std::string> resultFiles) { … }

//===----------------------------------------------------------------------===//
// Misc. functions.
//===----------------------------------------------------------------------===//

static void printSourceLocation(SourceLocation loc, ASTContext &Ctx,
                                raw_ostream &OS) { … }

static void printSourceRange(CharSourceRange range, ASTContext &Ctx,
                             raw_ostream &OS) { … }

//===----------------------------------------------------------------------===//
// Command line processing.
//===----------------------------------------------------------------------===//

int main(int argc, const char **argv) { … }