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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.
*
* Based on LLVM/Clang.
*
* This file is distributed under the University of Illinois Open Source
* License. See LICENSE.TXT for details.
*
*/
#ifndef LO_CLANG_SHARED_PLUGINS
#include "compat.hxx"
#include "plugin.hxx"
#include "check.hxx"
#include <iostream>
#include "clang/AST/CXXInheritance.h"
/*
* This is a compile-time checker.
*
* Check that when we override SvXmlImportContext, and we override createFastChildContext,
* we have also overridden startFastElement, or the fast-parser stuff will not work
* correctly.
*/
namespace
{
class XmlImport : public loplugin::FilteringPlugin<XmlImport>
{
public:
explicit XmlImport(loplugin::InstantiationData const& data)
: FilteringPlugin(data)
{
}
bool preRun() override
{
// std::string fn(handler.getMainFileName());
// loplugin::normalizeDotDotInFilePath(fn);
return true;
}
void run() override
{
if (preRun())
{
TraverseDecl(compiler.getASTContext().getTranslationUnitDecl());
}
}
bool VisitCXXMethodDecl(const CXXMethodDecl*);
};
static bool containsStartFastElementMethod(const CXXRecordDecl* cxxRecordDecl)
{
auto dc = loplugin::DeclCheck(cxxRecordDecl);
if (dc.Class("XFastContextHandler"))
return false;
for (auto it = cxxRecordDecl->method_begin(); it != cxxRecordDecl->method_end(); ++it)
{
auto i = *it;
if (i->getIdentifier() && i->getName() == "startFastElement")
return true;
}
return false;
}
bool XmlImport::VisitCXXMethodDecl(const CXXMethodDecl* methodDecl)
{
auto beginLoc = compat::getBeginLoc(methodDecl);
if (!beginLoc.isValid() || ignoreLocation(beginLoc))
return true;
if (!methodDecl->getIdentifier())
return true;
auto cxxRecordDecl = methodDecl->getParent();
if (!cxxRecordDecl || !cxxRecordDecl->getIdentifier())
return true;
if (loplugin::DeclCheck(cxxRecordDecl).Class("SvXMLImportContext"))
return true;
if (methodDecl->getName() == "createFastChildContext" || methodDecl->getName() == "characters"
|| methodDecl->getName() == "endFastElement")
{
auto className = cxxRecordDecl->getName();
if (className == "OOXMLFactory") // writerfilter
return true;
if (className == "SvXMLLegacyToFastDocHandler" || className == "ImportDocumentHandler"
|| className == "ExportDocumentHandler") // reportdesign
return true;
if (className == "XMLEmbeddedObjectExportFilter" || className == "XMLBasicExportFilter"
|| className == "XMLTransformerBase" || className == "SvXMLMetaExport") // xmloff
return true;
if (containsStartFastElementMethod(cxxRecordDecl))
return true;
bool foundStartFastElement = false;
bool foundImportContext = false;
CXXBasePaths aPaths;
cxxRecordDecl->lookupInBases(
[&](const CXXBaseSpecifier* Specifier, CXXBasePath & /*Path*/) -> bool {
if (!Specifier->getType().getTypePtr())
return false;
const CXXRecordDecl* baseCXXRecordDecl = Specifier->getType()->getAsCXXRecordDecl();
if (!baseCXXRecordDecl)
return false;
if (baseCXXRecordDecl->isInvalidDecl())
return false;
if (loplugin::DeclCheck(baseCXXRecordDecl).Class("SvXMLImportContext"))
foundImportContext |= true;
else
foundStartFastElement |= containsStartFastElementMethod(baseCXXRecordDecl);
return false;
},
aPaths);
if (foundImportContext && !foundStartFastElement)
report(DiagnosticsEngine::Warning, "must override startFastElement too",
compat::getBeginLoc(methodDecl))
<< methodDecl->getSourceRange();
}
else if (methodDecl->getName() == "StartElement" || methodDecl->getName() == "EndElement"
|| methodDecl->getName() == "Characters")
{
if (loplugin::DeclCheck(cxxRecordDecl).Class("SchXMLAxisContext"))
return true;
if (loplugin::DeclCheck(cxxRecordDecl).Class("SchXMLChartContext"))
return true;
if (loplugin::DeclCheck(cxxRecordDecl).Class("SchXMLParagraphContext"))
return true;
if (loplugin::DeclCheck(cxxRecordDecl).Class("SchXMLLegendContext"))
return true;
if (loplugin::DeclCheck(cxxRecordDecl).Class("SchXMLPropertyMappingContext"))
return true;
bool foundImportContext = false;
CXXBasePaths aPaths;
cxxRecordDecl->lookupInBases(
[&](const CXXBaseSpecifier* Specifier, CXXBasePath & /*Path*/) -> bool {
if (!Specifier->getType().getTypePtr())
return false;
const CXXRecordDecl* baseCXXRecordDecl = Specifier->getType()->getAsCXXRecordDecl();
if (!baseCXXRecordDecl)
return false;
if (baseCXXRecordDecl->isInvalidDecl())
return false;
if (loplugin::DeclCheck(baseCXXRecordDecl).Class("SvXMLImportContext"))
foundImportContext |= true;
return false;
},
aPaths);
if (!foundImportContext)
return true;
bool foundConstructor = false;
for (auto it = cxxRecordDecl->ctor_begin(); it != cxxRecordDecl->ctor_end(); ++it)
{
const CXXConstructorDecl* ctor = *it;
bool foundInt16 = false;
for (auto paramIt = ctor->param_begin(); paramIt != ctor->param_end(); ++paramIt)
{
const ParmVarDecl* pvd = *paramIt;
auto tc = loplugin::TypeCheck(pvd->getType());
if (tc.Typedef("sal_uInt16"))
foundInt16 = true;
else if (tc.LvalueReference().Const().Class("OUString") && foundInt16)
foundConstructor = true;
else
foundInt16 = false;
if (tc.LvalueReference().Const().Class("OUString")
&& pvd->getName() == "rLocalName")
foundConstructor = true;
}
}
if (!foundConstructor)
report(DiagnosticsEngine::Warning,
"overrides startElement, but looks like a fastparser context class, no "
"constructor that takes slowparser args",
compat::getBeginLoc(methodDecl))
<< methodDecl->getSourceRange();
}
return true;
}
loplugin::Plugin::Registration<XmlImport> xmlimport("xmlimport");
} // namespace
#endif // LO_CLANG_SHARED_PLUGINS
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
