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path: root/compilerplugins/clang/unusedmethods.py
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#!/usr/bin/python

import sys
import re

definitionSet = set()
definitionToSourceLocationMap = dict()
callSet = set()
# things we need to exclude for reasons like :
# - it's a weird template thingy that confuses the plugin
exclusionSet = set([
    "double basegfx::DoubleTraits::maxVal()",
    "double basegfx::DoubleTraits::minVal()",
    "double basegfx::DoubleTraits::neutral()",
    "int basegfx::Int32Traits::maxVal()",
    "int basegfx::Int32Traits::minVal()",
    "int basegfx::Int32Traits::neutral()",
    "unsigned long UniqueIndexImpl::Insert(void *)",
    "class XMLPropertyBackpatcher<short> & XMLTextImportHelper::GetFootnoteBP()",
    "class XMLPropertyBackpatcher<short> & XMLTextImportHelper::GetSequenceIdBP()",
    "void XclExpPivotCache::SaveXml(class XclExpXmlStream &)",


    # TODO track instantiations of template class constructors
    "void comphelper::IEventProcessor::release()",
    "void SotMutexHolder::acquire()",
    "void SotMutexHolder::release()",

    # only used by Windows build
    "_Bool basegfx::B2ITuple::equalZero() const",
    "class basegfx::B2DPolyPolygon basegfx::unotools::UnoPolyPolygon::getPolyPolygonUnsafe() const",
    "void basegfx::B2IRange::expand(const class basegfx::B2IRange &)",
    "void OpenGLContext::requestSingleBufferedRendering()",
	"_Bool TabitemValue::isBothAligned() const",
	"_Bool TabitemValue::isNotAligned() const",
	"void StyleSettings::SetSpinSize(long)",
	"void StyleSettings::SetFloatTitleHeight(long)",
    "void StyleSettings::SetTitleHeight(long)",
    "void StyleSettings::SetUseFlatBorders(_Bool)",
    "void StyleSettings::SetUseFlatMenus(_Bool)",
    "void StyleSettings::SetCursorSize(long)",
    "_Bool CommandMediaData::GetPassThroughToOS() const",
    "void Application::AppEvent(const class ApplicationEvent &)",
    "int PhysicalFontFace::GetWidth() const",
    "void PhysicalFontFace::SetBitmapSize(int,int)",
    "class boost::intrusive_ptr<class FontCharMap> FontCharMap::GetDefaultMap(_Bool)",
    "_Bool SalObject::IsEraseBackgroundEnabled()",
    "const class rtl::OUString & connectivity::OColumn::getCatalogName() const",
    "const class rtl::OUString & connectivity::OColumn::getSchemaName() const",
    "_Bool connectivity::OColumn::isDefinitelyWritable() const",
    "_Bool connectivity::OColumn::isReadOnly() const",
    "_Bool connectivity::OColumn::isWritable() const",
    "_Bool IDocumentLinksAdministration::GetData(const class rtl::OUString &,const class rtl::OUString &,class com::sun::star::uno::Any &) const",
    "_Bool IDocumentLinksAdministration::SetData(const class rtl::OUString &,const class rtl::OUString &,const class com::sun::star::uno::Any &)",
    "_Bool ScImportExport::ImportData(const class rtl::OUString &,const class com::sun::star::uno::Any &)",
	"void* ScannerManager::GetData()",
	"void ScannerManager::SetData(void *)",
    # instantiated from templates, not sure why it is not being picked up
    "class basegfx::B2DPolygon OutputDevice::PixelToLogic(const class basegfx::B2DPolygon &,const class MapMode &) const",
    "type-parameter-0-0 * detail::cloner::clone(type-parameter-0-0 *const)",
    "const class rtl::OUString writerperfect::DocumentHandlerFor::name()",
    # only used by OSX build
    "void StyleSettings::SetHideDisabledMenuItems(_Bool)",
    # debugging methods
    "void oox::drawingml::TextParagraphProperties::dump() const",
    "void oox::PropertyMap::dumpCode(class com::sun::star::uno::Reference<class com::sun::star::beans::XPropertySet>)",
    "void oox::PropertyMap::dumpData(class com::sun::star::uno::Reference<class com::sun::star::beans::XPropertySet>)",
    "class std::basic_string<char, struct std::char_traits<char>, class std::allocator<char> > writerfilter::ooxml::OOXMLPropertySet::toString()",
    # deep template magic in SW
    "Ring<value_type> * sw::Ring::Ring_node_traits::get_next(const Ring<value_type> *)",
    "Ring<value_type> * sw::Ring::Ring_node_traits::get_previous(const Ring<value_type> *)",
    "void sw::Ring::Ring_node_traits::set_next(Ring<value_type> *,Ring<value_type> *)",
    "void sw::Ring::Ring_node_traits::set_previous(Ring<value_type> *,Ring<value_type> *)",
    # I need to teach the plugin that for loops with range expressions call begin() and end()
    "class __gnu_debug::_Safe_iterator<class __gnu_cxx::__normal_iterator<class SwAnchoredObject *const *, class std::__cxx1998::vector<class SwAnchoredObject *, class std::allocator<class SwAnchoredObject *> > >, class std::__debug::vector<class SwAnchoredObject *, class std::allocator<class SwAnchoredObject *> > > SwSortedObjs::begin() const",
    "class __gnu_debug::_Safe_iterator<class __gnu_cxx::__normal_iterator<class SwAnchoredObject *const *, class std::__cxx1998::vector<class SwAnchoredObject *, class std::allocator<class SwAnchoredObject *> > >, class std::__debug::vector<class SwAnchoredObject *, class std::allocator<class SwAnchoredObject *> > > SwSortedObjs::end() const",
    # loaded by dlopen()
    "void * getStandardAccessibleFactory()",
    "void * getSvtAccessibilityComponentFactory()",
    "struct _rtl_uString * basicide_choose_macro(void *,unsigned char,struct _rtl_uString *)",
    "void basicide_macro_organizer(short)",
    "long basicide_handle_basic_error(void *)",
    "class com::sun::star::uno::XInterface * org_libreoffice_chart2_Chart2ToolboxController(class com::sun::star::uno::XComponentContext *,const class com::sun::star::uno::Sequence<class com::sun::star::uno::Any> &)",
    "class com::sun::star::uno::XInterface * org_libreoffice_comp_chart2_sidebar_ChartPanelFactory(class com::sun::star::uno::XComponentContext *,const class com::sun::star::uno::Sequence<class com::sun::star::uno::Any> &)",
    "class chart::opengl::OpenglShapeFactory * getOpenglShapeFactory()",
    "class VclAbstractDialogFactory * CreateDialogFactory()",
    "_Bool GetSpecialCharsForEdit(class vcl::Window *,const class vcl::Font &,class rtl::OUString &)",
    "const struct ImplTextEncodingData * sal_getFullTextEncodingData(unsigned short)"
    ])


# The parsing here is designed to avoid grabbing stuff which is mixed in from gbuild.
# I have not yet found a way of suppressing the gbuild output.
with open(sys.argv[1]) as txt:
    for line in txt:
        if line.startswith("definition:\t"):
            tokens = line.split("\t")
            funcInfo = (tokens[1], tokens[2])
            definitionSet.add(funcInfo)
            definitionToSourceLocationMap[funcInfo] = tokens[3].strip()
        elif line.startswith("call:\t"):
            tokens = line.split("\t")
            callSet.add((tokens[1], tokens[2].strip()))

tmp1set = set()
for d in definitionSet:
    clazz = d[0] + " " + d[1]
    if clazz in exclusionSet:
        continue
    if d in callSet:
        continue
    # ignore operators, they are normally called from inside STL code
    if "::operator" in d[1]:
        continue
    # ignore the custom RTTI stuff
    if (    ("::CreateType()" in d[1])
        or ("::IsA(" in d[1])
        or ("::Type()" in d[1])):
        continue
    # if this method is const, and there is a non-const variant of it, and the non-const variant is in use, then leave it alone
    if d[0].startswith("const ") and d[1].endswith(" const"):
        if ((d[0][6:],d[1][:-6]) in callSet):
           continue
    elif clazz.endswith(" const"):
        clazz2 = clazz[:len(clazz)-6] # strip off " const"
        if ((d[0],clazz2) in callSet):
           continue
    if clazz.endswith(" const") and ("::iterator" in clazz):
        clazz2 = clazz[:len(clazz)-6] # strip off " const"
        clazz2 = clazz2.replace("::const_iterator", "::iterator")
        if ((d[0],clazz2) in callSet):
           continue
    # if this method is non-const, and there is a const variant of it, and the const variant is in use, then leave it alone
    if (not clazz.endswith(" const")) and ((d[0],"const " + clazz + " const") in callSet):
       continue
    if (not clazz.endswith(" const")) and ("::iterator" in clazz):
        clazz2 = clazz.replace("::iterator", "::const_iterator") + " const"
        if ((d[0],clazz2) in callSet):
           continue
    # There is lots of macro magic going on in SRCDIR/include/sax/fshelper.hxx that should be using C++11 varag templates
    if d[1].startswith("sax_fastparser::FastSerializerHelper::"):
       continue
    # used by Windows build
    if any(x in d[1] for x in ["DdeTopic::", "DdeData::", "DdeService::", "DdeTransaction::", "DdeConnection::", "DdeLink::", "DdeItem::", "DdeGetPutItem::"]):
       continue
    # the include/tools/rtti.hxx stuff
    if ("::StaticType()" in d[1]) or ("::IsOf(void *(*)(void))" in d[1]):
       continue
    # too much template magic here for my plugin
    if (   ("cairocanvas::" in d[1])
        or ("canvas::" in d[1])
        or ("oglcanvas::" in d[1])
        or ("vclcanvas::" in d[1])):
       continue
    # these are loaded by dlopen() from somewhere
    if "get_implementation" in d[1]:
       continue
    if "component_getFactory" in d[1]:
       continue
    if d[0]=="_Bool" and "_supportsService(const class rtl::OUString &)" in d[1]:
       continue
    if (d[0]=="class com::sun::star::uno::Reference<class com::sun::star::uno::XInterface>"
        and "Instance(const class com::sun::star::uno::Reference<class com::sun::star::lang::XMultiServiceFactory> &)" in d[1]):
       continue
    # ignore the Java symbols, loaded from the JavaVM
    if d[1].startswith("Java_"):
       continue
    # ignore external code
    if definitionToSourceLocationMap[d].startswith("external/"):
       continue
    # ignore the VCL_BUILDER_DECL_FACTORY stuff
    if d[0]=="void" and d[1].startswith("make") and ("(class VclPtr<class vcl::Window> &" in d[1]):
       continue

    tmp1set.add((clazz, definitionToSourceLocationMap[d]))

def natural_sort_key(s, _nsre=re.compile('([0-9]+)')):
    return [int(text) if text.isdigit() else text.lower()
            for text in re.split(_nsre, s)]

# sort results by name and line number
tmp1list = sorted(tmp1set, key=lambda v: natural_sort_key(v[1]))

# print out the results
for t in tmp1list:
    print t[1]
    print "    ", t[0]

    

# add an empty line at the end to make it easier for the unusedmethodsremove plugin to mmap() the output file 
print