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90 lines
2.6 KiB
C++
90 lines
2.6 KiB
C++
//===--- swift-compatibility-symbols.cpp - Emit Clang symbol list ---------===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2022 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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//
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// A simple program to dynamically generate the list of macros added to
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// compatibility headers.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/raw_ostream.h"
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#include <algorithm>
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#include <cstdlib>
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#include <iostream>
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#include <system_error>
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namespace options {
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static llvm::cl::OptionCategory Category("swift-compatibility-symbols Options");
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static llvm::cl::opt<std::string>
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OutputFilename("output-filename",
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llvm::cl::desc("Filename for the output file"),
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llvm::cl::init("-"),
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llvm::cl::cat(Category));
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}
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int main(int argc, char *argv[]) {
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llvm::cl::HideUnrelatedOptions(options::Category);
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llvm::cl::ParseCommandLineOptions(argc, argv,
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"Swift Compatibility Symbols listing\n");
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std::error_code error;
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llvm::raw_fd_ostream OS(options::OutputFilename, error, llvm::sys::fs::CD_CreateAlways);
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if (OS.has_error() || error) {
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llvm::errs() << "Error when trying to write to output file; error code "
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<< error.message() << "\n";
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return EXIT_FAILURE;
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}
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llvm::SmallVector<llvm::StringRef, 40> symbols;
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#define CLANG_MACRO_DEFINED(NAME) \
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symbols.push_back(NAME);
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#define CLANG_MACRO(NAME, ARGS, VALUE) \
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CLANG_MACRO_DEFINED(NAME)
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#define CLANG_MACRO_BODY(NAME, BODY) \
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CLANG_MACRO_DEFINED(NAME)
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#define CLANG_MACRO_ALTERNATIVE(NAME, ARGS, CONDITION, VALUE, ALTERNATIVE) \
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CLANG_MACRO_DEFINED(NAME)
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#define CLANG_MACRO_CONDITIONAL(NAME, ARGS, CONDITION, VALUE) \
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CLANG_MACRO_DEFINED(NAME)
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#define CLANG_MACRO_OBJC(NAME, ARGS, VALUE) \
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CLANG_MACRO_DEFINED(NAME)
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#define CLANG_MACRO_CXX(NAME, ARGS, VALUE, ALTERNATIVE) \
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CLANG_MACRO_DEFINED(NAME)
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#define CLANG_MACRO_CXX_BODY(NAME, BODY) \
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CLANG_MACRO_DEFINED(NAME)
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#include "swift/PrintAsClang/ClangMacros.def"
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std::sort(symbols.begin(), symbols.end());
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for (const llvm::StringRef sym : symbols) {
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OS << sym << "\n";
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}
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return EXIT_SUCCESS;
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}
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