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/* -*- 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/.
*/
#include "plugin.hxx"
#include "compat.hxx"
/*
Look for member functions that can be static
*/
namespace {
class StaticMethods:
public RecursiveASTVisitor<StaticMethods>, public loplugin::Plugin
{
private:
bool bVisitedThis;
public:
explicit StaticMethods(InstantiationData const & data): Plugin(data) {}
void run() override
{ TraverseDecl(compiler.getASTContext().getTranslationUnitDecl()); }
bool TraverseCXXMethodDecl(const CXXMethodDecl * decl);
bool VisitCXXThisExpr(const CXXThisExpr *) { bVisitedThis = true; return true; }
// these two indicate that we hit something that makes our analysis unreliable
bool VisitUnresolvedMemberExpr(const UnresolvedMemberExpr *) { bVisitedThis = true; return true; }
bool VisitCXXDependentScopeMemberExpr(const CXXDependentScopeMemberExpr *) { bVisitedThis = true; return true; }
private:
std::string getFilename(SourceLocation loc);
};
bool BaseCheckNotTestFixtureSubclass(const CXXRecordDecl *BaseDefinition, void *) {
if (BaseDefinition->getQualifiedNameAsString().compare("CppUnit::TestFixture") == 0) {
return false;
}
return true;
}
bool isDerivedFromTestFixture(const CXXRecordDecl *decl) {
if (!decl->hasDefinition())
return false;
if (// not sure what hasAnyDependentBases() does,
// but it avoids classes we don't want, e.g. WeakAggComponentImplHelper1
!decl->hasAnyDependentBases() &&
!decl->forallBases(BaseCheckNotTestFixtureSubclass, nullptr, true)) {
return true;
}
return false;
}
std::string StaticMethods::getFilename(SourceLocation loc)
{
SourceLocation spellingLocation = compiler.getSourceManager().getSpellingLoc(loc);
return compiler.getSourceManager().getFilename(spellingLocation);
}
static bool startsWith(const std::string& rStr, const char* pSubStr) {
return rStr.compare(0, strlen(pSubStr), pSubStr) == 0;
}
bool StaticMethods::TraverseCXXMethodDecl(const CXXMethodDecl * pCXXMethodDecl) {
if (ignoreLocation(pCXXMethodDecl)) {
return true;
}
if (!pCXXMethodDecl->isInstance() || pCXXMethodDecl->isVirtual() || !pCXXMethodDecl->hasBody()) {
return true;
}
if (pCXXMethodDecl->getOverloadedOperator() != OverloadedOperatorKind::OO_None || pCXXMethodDecl->hasAttr<OverrideAttr>()) {
return true;
}
if (isa<CXXConstructorDecl>(pCXXMethodDecl) || isa<CXXDestructorDecl>(pCXXMethodDecl) || isa<CXXConversionDecl>(pCXXMethodDecl)) {
return true;
}
if (isInUnoIncludeFile(compiler.getSourceManager().getSpellingLoc(pCXXMethodDecl->getCanonicalDecl()->getLocStart()))) {
return true;
}
if ( pCXXMethodDecl != pCXXMethodDecl->getCanonicalDecl() ) {
return true;
}
// the CppUnit stuff uses macros and methods that can't be changed
if (isDerivedFromTestFixture(pCXXMethodDecl->getParent())) {
return true;
}
// don't mess with the backwards compatibility stuff
if (getFilename(pCXXMethodDecl->getLocStart()) == SRCDIR "/cppuhelper/source/compat.cxx") {
return true;
}
// the DDE has a dummy implementation on Linux and a real one on Windows
std::string aFilename = getFilename(pCXXMethodDecl->getCanonicalDecl()->getLocStart());
if (aFilename == SRCDIR "/include/svl/svdde.hxx") {
return true;
}
std::string aParentName = pCXXMethodDecl->getParent()->getQualifiedNameAsString();
// special case having something to do with static initialisation
// sal/osl/all/utility.cxx
if (aParentName == "osl::OGlobalTimer") {
return true;
}
// leave the TopLeft() method alone for consistency with the other "corner" methods
if (aParentName == "BitmapInfoAccess") {
return true;
}
// can't change it because in debug mode it can't be static
// sal/cpprt/operators_new_delete.cxx
if (aParentName == "(anonymous namespace)::AllocatorTraits") {
return true;
}
// in this case, the code is taking the address of the member function
// shell/source/unix/sysshell/recently_used_file_handler.cxx
if (aParentName == "(anonymous namespace)::recently_used_item") {
return true;
}
// the unotools and svl config code stuff is doing weird stuff with a reference-counted statically allocated pImpl class
if (startsWith(aFilename, SRCDIR "/include/unotools")) {
return true;
}
if (startsWith(aFilename, SRCDIR "/include/svl")) {
return true;
}
if (startsWith(aFilename, SRCDIR "/include/framework") || startsWith(aFilename, SRCDIR "/framework")) {
return true;
}
// there is some odd stuff happening here I don't fully understand, leave it for now
if (startsWith(aFilename, SRCDIR "/include/canvas") || startsWith(aFilename, SRCDIR "/canvas")) {
return true;
}
// classes that have static data and some kind of weird reference-counting trick in it's constructor
if (aParentName == "LinguOptions" || aParentName == "svtools::EditableExtendedColorConfig"
|| aParentName == "svtools::ExtendedColorConfig" || aParentName == "SvtMiscOptions"
|| aParentName == "SvtAccessibilityOptions" || aParentName == "svtools::ColorConfig"
|| aParentName == "SvtOptionsDrawinglayer" || aParentName == "SvtMenuOptions"
|| aParentName == "SvtToolPanelOptions" || aParentName == "SvtSlideSorterBarOptions"
|| aParentName == "connectivity::SharedResources"
|| aParentName == "svxform::OParseContextClient"
|| aParentName == "frm::OLimitedFormats" )
{
return true;
}
std::string fqn = aParentName + "::" + pCXXMethodDecl->getNameAsString();
// only empty on Linux, not on windows
if (fqn == "OleEmbeddedObject::GetVisualRepresentationInNativeFormat_Impl"
|| fqn == "OleEmbeddedObject::GetRidOfComponent"
|| fqn == "connectivity::mozab::ProfileAccess::isProfileLocked"
|| startsWith(fqn, "SbxDecimal::")
|| fqn == "SbiDllMgr::Call" || fqn == "SbiDllMgr::FreeDll"
|| fqn == "SfxApplication::InitializeDde" || fqn == "SfxApplication::RemoveDdeTopic"
|| fqn == "ScannerManager::ReleaseData") {
return true;
}
// debugging stuff
if (fqn == "chart::InternalData::dump") {
return true;
}
// used in a function-pointer-table
if (startsWith(fqn, "SbiRuntime::Step") || startsWith(fqn, "oox::xls::OoxFormulaParserImpl::")
|| startsWith(fqn, "SwTableFormula::")
|| startsWith(fqn, "oox::xls::BiffFormulaParserImpl::")
|| fqn == "SwWW8ImplReader::Read_F_Shape"
|| fqn == "SwWW8ImplReader::Read_Majority") {
return true;
}
// have no idea why this can't be static, but 'make check' fails with it so...
if (fqn == "oox::drawingml::Shape::resolveRelationshipsOfTypeFromOfficeDoc") {
return true;
}
// template magic
if (fqn == "ColumnBatch::getValue" || startsWith(fqn, "TitleImpl::")
|| fqn == "ooo::vba::DefaultReturnHelper::getDefaultPropertyName") {
return true;
}
// depends on config options
if (fqn == "psp::PrintFontManager::autoInstallFontLangSupport"
|| fqn == "GtkSalFrame::AllocateFrame"
|| fqn == "GtkSalFrame::TriggerPaintEvent") {
return true;
}
bVisitedThis = false;
TraverseStmt(pCXXMethodDecl->getBody());
if (bVisitedThis) {
return true;
}
report(
DiagnosticsEngine::Warning,
"this method can be declared static " + fqn,
pCXXMethodDecl->getCanonicalDecl()->getLocation())
<< pCXXMethodDecl->getCanonicalDecl()->getSourceRange();
FunctionDecl const * def;
if (pCXXMethodDecl->isDefined(def)
&& def != pCXXMethodDecl->getCanonicalDecl())
{
report(DiagnosticsEngine::Note, "defined here:", def->getLocation())
<< def->getSourceRange();
}
return true;
}
loplugin::Plugin::Registration<StaticMethods> X("staticmethods");
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
