72 lines · cpp
1//===- GuessTargetAndModeCompilationDatabase.cpp --------------------------===//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-exception6//7//===----------------------------------------------------------------------===//8 9#include "clang/Tooling/CompilationDatabase.h"10#include "clang/Tooling/Tooling.h"11#include "llvm/Support/Path.h"12#include "llvm/Support/Program.h"13#include <memory>14 15namespace clang {16namespace tooling {17 18namespace {19class LocationAdderDatabase : public CompilationDatabase {20public:21 LocationAdderDatabase(std::unique_ptr<CompilationDatabase> Base)22 : Base(std::move(Base)) {23 assert(this->Base != nullptr);24 }25 26 std::vector<std::string> getAllFiles() const override {27 return Base->getAllFiles();28 }29 30 std::vector<CompileCommand> getAllCompileCommands() const override {31 return addLocation(Base->getAllCompileCommands());32 }33 34 std::vector<CompileCommand>35 getCompileCommands(StringRef FilePath) const override {36 return addLocation(Base->getCompileCommands(FilePath));37 }38 39private:40 std::vector<CompileCommand>41 addLocation(std::vector<CompileCommand> Cmds) const {42 for (auto &Cmd : Cmds) {43 if (Cmd.CommandLine.empty())44 continue;45 std::string &Driver = Cmd.CommandLine.front();46 // If the driver name already is absolute, we don't need to do anything.47 if (llvm::sys::path::is_absolute(Driver))48 continue;49 // If the name is a relative path, like bin/clang, we assume it's50 // possible to resolve it and don't do anything about it either.51 if (llvm::any_of(Driver,52 [](char C) { return llvm::sys::path::is_separator(C); }))53 continue;54 auto Absolute = llvm::sys::findProgramByName(Driver);55 // If we found it in path, update the entry in Cmd.CommandLine56 if (Absolute && llvm::sys::path::is_absolute(*Absolute))57 Driver = std::move(*Absolute);58 }59 return Cmds;60 }61 std::unique_ptr<CompilationDatabase> Base;62};63} // namespace64 65std::unique_ptr<CompilationDatabase>66inferToolLocation(std::unique_ptr<CompilationDatabase> Base) {67 return std::make_unique<LocationAdderDatabase>(std::move(Base));68}69 70} // namespace tooling71} // namespace clang72