6f773205cd
This reverts commit 3f76260dc0.
Breaks at least these tests on Windows:
Clang :: Driver/clang-offload-bundler.c
Clang :: Driver/clang-offload-wrapper.c
122 lines
4.4 KiB
C++
122 lines
4.4 KiB
C++
//===---- tools/extra/ToolTemplate.cpp - Template for refactoring tool ----===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements an empty refactoring tool using the clang tooling.
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// The goal is to lower the "barrier to entry" for writing refactoring tools.
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//
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// Usage:
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// tool-template <cmake-output-dir> <file1> <file2> ...
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//
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// Where <cmake-output-dir> is a CMake build directory in which a file named
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// compile_commands.json exists (enable -DCMAKE_EXPORT_COMPILE_COMMANDS in
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// CMake to get this output).
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//
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// <file1> ... specify the paths of files in the CMake source tree. This path
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// is looked up in the compile command database. If the path of a file is
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// absolute, it needs to point into CMake's source tree. If the path is
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// relative, the current working directory needs to be in the CMake source
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// tree and the file must be in a subdirectory of the current working
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// directory. "./" prefixes in the relative files will be automatically
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// removed, but the rest of a relative path must be a suffix of a path in
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// the compile command line database.
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//
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// For example, to use tool-template on all files in a subtree of the
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// source tree, use:
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//
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// /path/in/subtree $ find . -name '*.cpp'|
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// xargs tool-template /path/to/build
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//
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//===----------------------------------------------------------------------===//
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#include "clang/ASTMatchers/ASTMatchFinder.h"
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#include "clang/ASTMatchers/ASTMatchers.h"
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#include "clang/Basic/SourceManager.h"
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#include "clang/Frontend/FrontendActions.h"
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#include "clang/Lex/Lexer.h"
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#include "clang/Tooling/CommonOptionsParser.h"
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#include "clang/Tooling/Execution.h"
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#include "clang/Tooling/Refactoring.h"
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#include "clang/Tooling/Refactoring/AtomicChange.h"
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#include "clang/Tooling/Tooling.h"
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/MemoryBuffer.h"
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#include "llvm/Support/Signals.h"
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using namespace clang;
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using namespace clang::ast_matchers;
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using namespace clang::tooling;
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using namespace llvm;
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namespace {
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class ToolTemplateCallback : public MatchFinder::MatchCallback {
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public:
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ToolTemplateCallback(ExecutionContext &Context) : Context(Context) {}
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void run(const MatchFinder::MatchResult &Result) override {
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// TODO: This routine will get called for each thing that the matchers
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// find.
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// At this point, you can examine the match, and do whatever you want,
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// including replacing the matched text with other text
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auto *D = Result.Nodes.getNodeAs<NamedDecl>("decl");
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assert(D);
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// Use AtomicChange to get a key.
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if (D->getBeginLoc().isValid()) {
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AtomicChange Change(*Result.SourceManager, D->getBeginLoc());
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Context.reportResult(Change.getKey(), D->getQualifiedNameAsString());
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}
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}
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void onStartOfTranslationUnit() override {
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Context.reportResult("START", "Start of TU.");
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}
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void onEndOfTranslationUnit() override {
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Context.reportResult("END", "End of TU.");
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}
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private:
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ExecutionContext &Context;
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};
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} // end anonymous namespace
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// Set up the command line options
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static cl::extrahelp CommonHelp(CommonOptionsParser::HelpMessage);
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static cl::OptionCategory ToolTemplateCategory("tool-template options");
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int main(int argc, const char **argv) {
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llvm::sys::PrintStackTraceOnErrorSignal(argv[0]);
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auto Executor = clang::tooling::createExecutorFromCommandLineArgs(
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argc, argv, ToolTemplateCategory);
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if (!Executor) {
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llvm::errs() << llvm::toString(Executor.takeError()) << "\n";
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return 1;
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}
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ast_matchers::MatchFinder Finder;
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ToolTemplateCallback Callback(*Executor->get()->getExecutionContext());
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// TODO: Put your matchers here.
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// Use Finder.addMatcher(...) to define the patterns in the AST that you
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// want to match against. You are not limited to just one matcher!
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//
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// This is a sample matcher:
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Finder.addMatcher(
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namedDecl(cxxRecordDecl(), isExpansionInMainFile()).bind("decl"),
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&Callback);
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auto Err = Executor->get()->execute(newFrontendActionFactory(&Finder));
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if (Err) {
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llvm::errs() << llvm::toString(std::move(Err)) << "\n";
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}
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Executor->get()->getToolResults()->forEachResult(
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[](llvm::StringRef key, llvm::StringRef value) {
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llvm::errs() << "----" << key.str() << "\n" << value.str() << "\n";
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});
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}
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