Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 328 insertions, 0 deletions

diff --git a/compilerplugins/clang/reservedid.cxx b/compilerplugins/clang/reservedid.cxx
new file mode 100644
index 000000000..be0a2f209
--- /dev/null
+++ b/compilerplugins/clang/reservedid.cxx
@@ -0,0 +1,328 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#ifndef LO_CLANG_SHARED_PLUGINS
+
+#include <algorithm>
+#include <cassert>
+#include <limits>
+#include <set>
+#include <string>
+
+#include "clang/AST/Attr.h"
+
+#include "config_clang.h"
+
+#include "plugin.hxx"
+
+namespace {
+
+bool isJniFunction(NamedDecl const * decl) {
+    auto const fdecl = dyn_cast<FunctionDecl>(decl);
+    if (fdecl == nullptr
+        || !(decl->getDeclContext()->getDeclKind() == Decl::LinkageSpec
+             && decl->getDeclContext()->getParent()->isTranslationUnit())
+        || !fdecl->isExternC())
+    {
+        return false;
+    }
+    auto const id = decl->getIdentifier();
+    return id != nullptr && id->getName().startswith("Java_");
+}
+
+class ReservedId:
+    public loplugin::FilteringPlugin<ReservedId>
+{
+public:
+    explicit ReservedId(loplugin::InstantiationData const & data): FilteringPlugin(data)
+    {}
+
+    void run() override;
+    void postRun() override;
+
+    bool VisitNamedDecl(NamedDecl const * decl);
+
+private:
+    enum class Kind {
+        Ok, DoubleUnderscore, UnderscoreUppercase, UnderscoreLowercase };
+
+    Kind determineKind(llvm::StringRef const & id);
+
+    bool isInLokIncludeFile(SourceLocation spellingLocation) const;
+
+    bool isApi(NamedDecl const * decl);
+};
+
+void ReservedId::run() {
+    //TODO: Rules for C?
+    if (TraverseDecl(compiler.getASTContext().getTranslationUnitDecl()))
+        postRun();
+}
+
+void ReservedId::postRun() {
+    if( compiler.hasPreprocessor())
+    {
+        auto & prep = compiler.getPreprocessor();
+        for (auto const & m: prep.macros(false)) {
+            auto id = m.first->getName();
+            if (determineKind(id) != Kind::Ok
+                && id != "_ATL_APARTMENT_THREADED"
+                    // extensions/source/activex/StdAfx2.h
+                && id != "_ATL_STATIC_REGISTRY"
+                    // extensions/source/activex/StdAfx2.h
+                && id != "_CRT_RAND_S" // sal/osl/w32/random.cxx
+                && id != "_GLIBCXX_CDTOR_CALLABI"
+                && id != "_HAS_AUTO_PTR_ETC" // unotools/source/i18n/resmgr.cxx
+                && id != "_LIBCPP_ENABLE_CXX17_REMOVED_AUTO_PTR" // unotools/source/i18n/resmgr.cxx
+                && id != "_MAX_PATH" // Windows
+                && id != "_POSIX_SOURCE"
+                && id != "_USE_MATH_DEFINES" // include/sal/config.h, Windows
+                && id != "_WIN32_DCOM" // embedserv/source/embed/esdll.cxx
+                && id != "_WTL_NO_CSTRING"
+                    // fpicker/source/win32/filepicker/platform_vista.h (TODO:
+                    // needed?)
+                && id != "__ASSERT_MACROS_DEFINE_VERSIONS_WITHOUT_UNDERSCORES"
+                && id != "__Column_FWD_DEFINED__"
+                    // connectivity/source/inc/ado/Awrapadox.hxx, MS SDK
+                    // adoctint.h
+                && id != "__Group_FWD_DEFINED__"
+                    // connectivity/source/inc/ado/Awrapadox.hxx, MS SDK
+                    // adoctint.h
+                && id != "__Index_FWD_DEFINED__"
+                    // connectivity/source/inc/ado/Awrapadox.hxx, MS SDK
+                    // adoctint.h
+                && id != "__Key_FWD_DEFINED__"
+                    // connectivity/source/inc/ado/Awrapadox.hxx, MS SDK
+                    // adoctint.h
+                && id != "__ORCUS_STATIC_LIB"
+                && id != "__Table_FWD_DEFINED__"
+                    // connectivity/source/inc/ado/Awrapadox.hxx, MS SDK
+                    // adoctint.h
+                && id != "__USE_GNU"
+                && id != "__User_FWD_DEFINED__")
+                    // connectivity/source/inc/ado/Awrapadox.hxx, MS SDK
+                    // adoctint.h
+            {
+                auto d = prep.getLocalMacroDirectiveHistory(m.first);
+                for (;;) {
+                    if (d->getKind() == MacroDirective::MD_Define) {
+                        auto loc = d->getLocation();
+                        if (loc.isValid() && !ignoreLocation(loc)) {
+                            auto file = getFilenameOfLocation(loc);
+                            if (!loplugin::isSameUnoIncludePathname(
+                                    file,
+                                    "cppuhelper/implbase_ex_post.hxx")
+                                && !loplugin::isSameUnoIncludePathname(
+                                    file,
+                                    "cppuhelper/implbase_ex_pre.hxx"))
+                            {
+                                report(
+                                    DiagnosticsEngine::Warning,
+                                    "reserved macro identifier", loc);
+                            }
+                        }
+                    }
+                    d = d->getPrevious();
+                    if (d == nullptr) {
+                        break;
+                    }
+                }
+            }
+        }
+    }
+}
+
+bool ReservedId::VisitNamedDecl(NamedDecl const * decl) {
+    auto spelLoc = compiler.getSourceManager().getSpellingLoc(
+        decl->getLocation());
+    if (ignoreLocation(spelLoc)) {
+        return true;
+    }
+    auto filename = getFilenameOfLocation(spelLoc);
+    if (loplugin::hasPathnamePrefix(filename, SRCDIR "/bridges/source/cpp_uno/")
+        && (filename.endswith("abi.hxx") || filename.endswith("share.hxx")))
+    {
+        return true;
+    }
+    auto const id = decl->getIdentifier();
+    if (id == nullptr) {
+        return true;
+    }
+    auto const s = id->getName();
+    switch (determineKind(s)) {
+    case Kind::Ok:
+        break;
+    case Kind::DoubleUnderscore:
+/*TODO*/if(s=="BIFF__5"||s=="XML__COLON"||s=="XML__EMPTY"||s=="XML__UNKNOWN_")break;
+        if (!(isApi(decl) || isJniFunction(decl))
+            && s != "__CERT_DecodeDERCertificate"
+                // xmlsecurity/source/xmlsec/nss/nssrenam.h
+            && s != "__CERT_NewTempCertificate"
+                // xmlsecurity/source/xmlsec/nss/nssrenam.h
+            && s != "__CTFont"
+                // vcl/source/window/cairo_cairo.cxx -> include/vcl/sysdata.hxx
+            && s != "__CxxDetectRethrow"
+                // bridges/source/cpp_uno/msvc_win32_x86-64/mscx.hxx
+            && s != "__PK11_GetKeyData"
+                // xmlsecurity/source/xmlsec/nss/nssrenam.h
+            && s != "__current_exception" // bridges/inc/except.hxx, Windows
+            && s != "__data_start") // sal/osl/unx/system.cxx
+        {
+            report(
+                DiagnosticsEngine::Warning,
+                "identifier %select{beginning with|containing}0 a double"
+                    " underscore is reserved",
+                decl->getLocation())
+                << compiler.getLangOpts().CPlusPlus << decl->getSourceRange();
+        }
+        break;
+    case Kind::UnderscoreUppercase:
+        if (!isApi(decl)
+            && s != "_ADOColumn"
+                // connectivity/source/inc/ado/Awrapadox.hxx, MS SDK adoctint.h
+            && s != "_ADOGroup"
+                // connectivity/source/inc/ado/Awrapadox.hxx, MS SDK adoctint.h
+            && s != "_ADOIndex"
+                // connectivity/source/inc/ado/Awrapadox.hxx, MS SDK adoctint.h
+            && s != "_ADOKey"
+                // connectivity/source/inc/ado/Awrapadox.hxx, MS SDK adoctint.h
+            && s != "_ADOTable"
+                // connectivity/source/inc/ado/Awrapadox.hxx, MS SDK adoctint.h
+            && s != "_ADOUser"
+                // connectivity/source/inc/ado/Awrapadox.hxx, MS SDK adoctint.h
+            && s != "_CustomCellRenderer" // vcl/unx/gtk3/customcellrenderer.hxx
+            && s != "_CustomCellRendererClass" // vcl/unx/gtk3/customcellrenderer.cxx
+            && s != "_FcPattern" // vcl/inc/unx/fc_fontoptions.hxx
+            && s != "_GdkDisplay"
+                // vcl/unx/gtk/xid_fullscreen_on_all_monitors.c
+            && s != "_GdkEvent" // vcl/unx/gtk/xid_fullscreen_on_all_monitors.c
+            && s != "_GdkScreen" // vcl/unx/gtk/xid_fullscreen_on_all_monitors.c
+            && s != "_GdkWindow"
+                // vcl/unx/gtk/xid_fullscreen_on_all_monitors.c
+            && s != "_GstVideoOverlay"
+                // avmedia/source/gstreamer/gstplayer.hxx
+            && s != "_GtkMediaStream"
+                // avmedia/source/gtk/gtkplayer.hxx
+            && s != "_GtkWidget"
+                // avmedia/source/gtk/gtkplayer.hxx
+            && s != "_Module" // extensions/source/activex/StdAfx2.h, CComModule
+            && s != "_NotifyingLayout" // vcl/unx/gtk4/notifyinglayout.cxx
+            && s != "_SurfacePaintable" // vcl/unx/gtk3/gtkinst.cxx
+            && s != "_SurfacePaintableClass" // vcl/unx/gtk3/gtkinst.cxx
+            && s != "_SurfaceCellRenderer" // vcl/unx/gtk4/surfacecellrenderer.cxx
+            && s != "_SurfaceCellRendererClass" // vcl/unx/gtk4/surfacecellrenderer.cxx
+            && s != "_TransferableContent" // vcl/unx/gtk4/transferableprovider.cxx
+            && s != "_TransferableContentClass" // vcl/unx/gtk4/transferableprovider.cxx
+            && s != "_XRegion" // vcl/unx/generic/gdi/x11cairotextrender.cxx
+            && s != "_XTrap") // vcl/unx/generic/gdi/xrender_peer.hxx
+        {
+            report(
+                DiagnosticsEngine::Warning,
+                "identifier beginning with an underscore followed by an"
+                    " uppercase letter is reserved",
+                decl->getLocation())
+                << decl->getSourceRange();
+        }
+        break;
+    case Kind::UnderscoreLowercase:
+        if (decl->getDeclContext()->isTranslationUnit()
+            && !isa<ParmVarDecl>(decl) && !isApi(decl)
+            && s != "_cairo" && s != "_cairo_surface"
+                // tools/source/ref/errinf.cxx -> include/vcl/window.hxx ->
+                // include/vcl/outdev.hxx -> include/vcl/cairo.hxx
+            && s != "_cairo_font_options"
+                // vcl/source/window/accessibility.cxx -> vcl/inc/salinst.hxx
+            && s != "_cairo_user_data_key"
+                // vcl/headless/svpbmp.cxx -> vcl/inc/headless/svpgdi.hxx
+            && s != "_end" // sal/osl/unx/system.cxx
+            && s != "_rtl_Locale"
+                // i18nlangtag/source/isolang/mslangid.cxx ->
+                // include/i18nlangtag/languagetag.hxx
+            && s != "_uno_ExtEnvironment"
+                // cppu/source/threadpool/threadident.cxx ->
+                // threadpool/current.hxx
+            && s != "_xmlTextWriter") // include/svl/poolitem.hxx
+        {
+            report(
+                DiagnosticsEngine::Warning,
+                "identifier beginning with an underscore followed by a"
+                    " lowercase letter is reserved in the global namespace",
+                decl->getLocation())
+                << decl->getSourceRange();
+        }
+        break;
+    }
+    return true;
+}
+
+ReservedId::Kind ReservedId::determineKind(llvm::StringRef const & id) {
+    if (compiler.getLangOpts().CPlusPlus
+        && id.find("__") != llvm::StringRef::npos)
+    {
+        return Kind::DoubleUnderscore;
+    }
+    if (id.size() >= 2 && id[0] == '_') {
+        auto c = id[1];
+        if (c == '_') {
+            return Kind::DoubleUnderscore;
+        }
+        if (c >= 'A' && c <= 'Z') {
+            return Kind::UnderscoreUppercase;
+        }
+        if (c >= 'a' && c <= 'z') {
+            return Kind::UnderscoreLowercase;
+        }
+    }
+    return Kind::Ok;
+}
+
+bool ReservedId::isInLokIncludeFile(SourceLocation spellingLocation) const {
+    return loplugin::hasPathnamePrefix(
+        getFilenameOfLocation(spellingLocation),
+        SRCDIR "/include/LibreOfficeKit/");
+}
+
+bool ReservedId::isApi(NamedDecl const * decl) {
+    auto const fdecl = dyn_cast<FunctionDecl>(decl);
+    if (fdecl != nullptr) {
+        decl = fdecl->getCanonicalDecl();
+    } else {
+        auto const tdecl = dyn_cast<TagDecl>(decl);
+        if (tdecl != nullptr) {
+            decl = tdecl->getCanonicalDecl();
+        }
+    }
+    auto const loc = compiler.getSourceManager().getSpellingLoc(
+        decl->getLocation());
+    if (!(isInUnoIncludeFile(loc) || isInLokIncludeFile(loc))
+        || isa<ParmVarDecl>(decl))
+    {
+        return false;
+    }
+    auto const ctx = decl->getDeclContext();
+    if (ctx->isTranslationUnit()
+        || (ctx->getDeclKind() == Decl::LinkageSpec
+            && ctx->getParent()->isTranslationUnit()))
+    {
+        return true;
+    }
+    if (ctx->isNamespace()) {
+        auto const id = dyn_cast<NamespaceDecl>(ctx)->getIdentifier();
+        return !(id == nullptr || id->getName() == "detail");
+    }
+    return false;
+}
+
+loplugin::Plugin::Registration<ReservedId> reservedid("reservedid");
+
+}
+
+#endif // LO_CLANG_SHARED_PLUGINS
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */