Remove tools/clang (this will break things temporarily).

tools/clang/plugins/ChromeClassTester.cpp

Index: tools/clang/plugins/ChromeClassTester.cpp
diff --git a/tools/clang/plugins/ChromeClassTester.cpp b/tools/clang/plugins/ChromeClassTester.cpp
deleted file mode 100644
index 9b7793afe3b6380e49768743219c4b42ce2946c9..0000000000000000000000000000000000000000
--- a/tools/clang/plugins/ChromeClassTester.cpp
+++ /dev/null
@@ -1,327 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// A general interface for filtering and only acting on classes in Chromium C++
-// code.
-
-#include "ChromeClassTester.h"
-
-#include <algorithm>
-
-#include "clang/AST/AST.h"
-#include "clang/Basic/FileManager.h"
-#include "clang/Basic/SourceManager.h"
-
-#ifdef LLVM_ON_UNIX
-#include <sys/param.h>
-#endif
-
-using namespace clang;
-using chrome_checker::Options;
-
-namespace {
-
-bool ends_with(const std::string& one, const std::string& two) {
-  if (two.size() > one.size())
-    return false;
-
-  return one.compare(one.size() - two.size(), two.size(), two) == 0;
-}
-
-}  // namespace
-
-ChromeClassTester::ChromeClassTester(CompilerInstance& instance,
-                                     const Options& options)
-    : options_(options),
-      instance_(instance),
-      diagnostic_(instance.getDiagnostics()) {
-  BuildBannedLists();
-}
-
-ChromeClassTester::~ChromeClassTester() {}
-
-void ChromeClassTester::HandleTagDeclDefinition(TagDecl* tag) {
-  pending_class_decls_.push_back(tag);
-}
-
-bool ChromeClassTester::HandleTopLevelDecl(DeclGroupRef group_ref) {
-  for (size_t i = 0; i < pending_class_decls_.size(); ++i)
-    CheckTag(pending_class_decls_[i]);
-  pending_class_decls_.clear();
-
-  return true;  // true means continue parsing.
-}
-
-void ChromeClassTester::CheckTag(TagDecl* tag) {
-  // We handle class types here where we have semantic information. We can only
-  // check structs/classes/enums here, but we get a bunch of nice semantic
-  // information instead of just parsing information.
-
-  if (CXXRecordDecl* record = dyn_cast<CXXRecordDecl>(tag)) {
-    if (InBannedNamespace(record))
-      return;
-
-    SourceLocation record_location = record->getInnerLocStart();
-    if (InBannedDirectory(record_location))
-      return;
-
-    // We sadly need to maintain a blacklist of types that violate these
-    // rules, but do so for good reason or due to limitations of this
-    // checker (i.e., we don't handle extern templates very well).
-    std::string base_name = record->getNameAsString();
-    if (IsIgnoredType(base_name))
-      return;
-
-    // We ignore all classes that end with "Matcher" because they're probably
-    // GMock artifacts.
-    if (ends_with(base_name, "Matcher"))
-        return;
-
-    CheckChromeClass(record_location, record);
-  } else if (EnumDecl* enum_decl = dyn_cast<EnumDecl>(tag)) {
-    SourceLocation enum_location = enum_decl->getInnerLocStart();
-    if (InBannedDirectory(enum_location))
-      return;
-
-    std::string base_name = enum_decl->getNameAsString();
-    if (IsIgnoredType(base_name))
-      return;
-
-    CheckChromeEnum(enum_location, enum_decl);
-  }
-}
-
-void ChromeClassTester::emitWarning(SourceLocation loc,
-                                    const char* raw_error) {
-  FullSourceLoc full(loc, instance().getSourceManager());
-  std::string err;
-  err = "[chromium-style] ";
-  err += raw_error;
-
-  DiagnosticIDs::Level level = getErrorLevel() == DiagnosticsEngine::Error
-      ? DiagnosticIDs::Error : DiagnosticIDs::Warning;
-
-  unsigned id = diagnostic().getDiagnosticIDs()->getCustomDiagID(level, err);
-  DiagnosticBuilder builder = diagnostic().Report(full, id);
-
-}
-
-bool ChromeClassTester::InBannedDirectory(SourceLocation loc) {
-  if (instance().getSourceManager().isInSystemHeader(loc))
-    return true;
-
-  std::string filename;
-  if (!GetFilename(loc, &filename)) {
-    // If the filename cannot be determined, simply treat this as a banned
-    // location, instead of going through the full lookup process.
-    return true;
-  }
-
-  // We need to special case scratch space; which is where clang does its
-  // macro expansion. We explicitly want to allow people to do otherwise bad
-  // things through macros that were defined due to third party libraries.
-  if (filename == "<scratch space>")
-    return true;
-
-  // Don't complain about autogenerated protobuf files.
-  if (ends_with(filename, ".pb.h")) {
-    return true;
-  }
-
-#if defined(LLVM_ON_UNIX)
-  // Resolve the symlinktastic relative path and make it absolute.
-  char resolvedPath[MAXPATHLEN];
-  if (realpath(filename.c_str(), resolvedPath)) {
-    filename = resolvedPath;
-  }
-#endif
-
-#if defined(LLVM_ON_WIN32)
-  std::replace(filename.begin(), filename.end(), '\\', '/');
-
-  // On Posix, realpath() has made the path absolute.  On Windows, this isn't
-  // necessarily true, so prepend a '/' to the path to make sure the
-  // banned_directories_ loop below works correctly.
-  // This turns e.g. "gen/dir/file.cc" to "/gen/dir/file.cc" which lets the
-  // "/gen/" banned_dir work.
-  // This seems simpler than converting to utf16, calling GetFullPathNameW(),
-  // and converting back to utf8.
-  filename.insert(filename.begin(), '/');
-#endif
-
-  for (const std::string& allowed_dir : allowed_directories_) {
-    // If any of the allowed directories occur as a component in filename,
-    // this file is allowed.
-    assert(allowed_dir.front() == '/' && "Allowed dir must start with '/'");
-    assert(allowed_dir.back() == '/' && "Allowed dir must end with '/'");
-
-    if (filename.find(allowed_dir) != std::string::npos)
-      return false;
-  }
-
-  for (const std::string& banned_dir : banned_directories_) {
-    // If any of the banned directories occur as a component in filename,
-    // this file is rejected.
-    assert(banned_dir.front() == '/' && "Banned dir must start with '/'");
-    assert(banned_dir.back() == '/' && "Banned dir must end with '/'");
-
-    if (filename.find(banned_dir) != std::string::npos)
-      return true;
-  }
-
-  return false;
-}
-
-bool ChromeClassTester::InBannedNamespace(const Decl* record) {
-  std::string n = GetNamespace(record);
-  if (!n.empty()) {
-    return std::find(banned_namespaces_.begin(), banned_namespaces_.end(), n)
-        != banned_namespaces_.end();
-  }
-
-  return false;
-}
-
-std::string ChromeClassTester::GetNamespace(const Decl* record) {
-  return GetNamespaceImpl(record->getDeclContext(), "");
-}
-
-bool ChromeClassTester::InImplementationFile(SourceLocation record_location) {
-  std::string filename;
-  if (!GetFilename(record_location, &filename))
-    return false;
-
-  if (ends_with(filename, ".cc") || ends_with(filename, ".cpp") ||
-      ends_with(filename, ".mm")) {
-    return true;
-  }
-
-  return false;
-}
-
-void ChromeClassTester::BuildBannedLists() {
-  banned_namespaces_.emplace("std");
-  banned_namespaces_.emplace("__gnu_cxx");
-
-  if (!options_.enforce_overriding_blink) {
-    banned_namespaces_.emplace("blink");
-    banned_namespaces_.emplace("WTF");
-  }
-
-  if (options_.enforce_in_thirdparty_webkit) {
-    allowed_directories_.emplace("/third_party/WebKit/");
-  }
-
-  banned_directories_.emplace("/third_party/");
-  banned_directories_.emplace("/native_client/");
-  banned_directories_.emplace("/breakpad/");
-  banned_directories_.emplace("/courgette/");
-  banned_directories_.emplace("/pdf/");
-  banned_directories_.emplace("/ppapi/");
-  banned_directories_.emplace("/usr/include/");
-  banned_directories_.emplace("/usr/lib/");
-  banned_directories_.emplace("/usr/local/include/");
-  banned_directories_.emplace("/usr/local/lib/");
-  banned_directories_.emplace("/testing/");
-  banned_directories_.emplace("/v8/");
-  banned_directories_.emplace("/dart/");
-  banned_directories_.emplace("/sdch/");
-  banned_directories_.emplace("/icu4c/");
-  banned_directories_.emplace("/frameworks/");
-
-  // Don't check autogenerated headers.
-  // Make puts them below $(builddir_name)/.../gen and geni.
-  // Ninja puts them below OUTPUT_DIR/.../gen
-  // Xcode has a fixed output directory for everything.
-  banned_directories_.emplace("/gen/");
-  banned_directories_.emplace("/geni/");
-  banned_directories_.emplace("/xcodebuild/");
-
-  // Used in really low level threading code that probably shouldn't be out of
-  // lined.
-  ignored_record_names_.emplace("ThreadLocalBoolean");
-
-  // A complicated pickle derived struct that is all packed integers.
-  ignored_record_names_.emplace("Header");
-
-  // Part of the GPU system that uses multiple included header
-  // weirdness. Never getting this right.
-  ignored_record_names_.emplace("Validators");
-
-  // Has a UNIT_TEST only constructor. Isn't *terribly* complex...
-  ignored_record_names_.emplace("AutocompleteController");
-  ignored_record_names_.emplace("HistoryURLProvider");
-
-  // Used over in the net unittests. A large enough bundle of integers with 1
-  // non-pod class member. Probably harmless.
-  ignored_record_names_.emplace("MockTransaction");
-
-  // Enum type with _LAST members where _LAST doesn't mean last enum value.
-  ignored_record_names_.emplace("ServerFieldType");
-
-  // Used heavily in ui_base_unittests and once in views_unittests. Fixing this
-  // isn't worth the overhead of an additional library.
-  ignored_record_names_.emplace("TestAnimationDelegate");
-
-  // Part of our public interface that nacl and friends use. (Arguably, this
-  // should mean that this is a higher priority but fixing this looks hard.)
-  ignored_record_names_.emplace("PluginVersionInfo");
-
-  // Measured performance improvement on cc_perftests. See
-  // https://codereview.chromium.org/11299290/
-  ignored_record_names_.emplace("QuadF");
-
-  // Enum type with _LAST members where _LAST doesn't mean last enum value.
-  ignored_record_names_.emplace("ViewID");
-}
-
-std::string ChromeClassTester::GetNamespaceImpl(const DeclContext* context,
-                                                const std::string& candidate) {
-  switch (context->getDeclKind()) {
-    case Decl::TranslationUnit: {
-      return candidate;
-    }
-    case Decl::Namespace: {
-      const NamespaceDecl* decl = dyn_cast<NamespaceDecl>(context);
-      std::string name_str;
-      llvm::raw_string_ostream OS(name_str);
-      if (decl->isAnonymousNamespace())
-        OS << "<anonymous namespace>";
-      else
-        OS << *decl;
-      return GetNamespaceImpl(context->getParent(),
-                              OS.str());
-    }
-    default: {
-      return GetNamespaceImpl(context->getParent(), candidate);
-    }
-  }
-}
-
-bool ChromeClassTester::IsIgnoredType(const std::string& base_name) {
-  return ignored_record_names_.find(base_name) != ignored_record_names_.end();
-}
-
-bool ChromeClassTester::GetFilename(SourceLocation loc,
-                                    std::string* filename) {
-  const SourceManager& source_manager = instance_.getSourceManager();
-  SourceLocation spelling_location = source_manager.getSpellingLoc(loc);
-  PresumedLoc ploc = source_manager.getPresumedLoc(spelling_location);
-  if (ploc.isInvalid()) {
-    // If we're in an invalid location, we're looking at things that aren't
-    // actually stated in the source.
-    return false;
-  }
-
-  *filename = ploc.getFilename();
-  return true;
-}
-
-DiagnosticsEngine::Level ChromeClassTester::getErrorLevel() {
-  if (options_.warn_only)
-    return DiagnosticsEngine::Warning;
-
-  return diagnostic().getWarningsAsErrors() ? DiagnosticsEngine::Error
-                                            : DiagnosticsEngine::Warning;
-}