bool FieldVisitor::VisitFieldDecl( clang::FieldDecl *field ) {
fdes->setBitField(field->isBitField()) ;
if ( fdes->isBitField() ) {
fdes->setBitFieldWidth(field->getBitWidthValue(field->getASTContext())) ;
unsigned int field_offset_bits = field->getASTContext().getFieldOffset(field) + fdes->getBaseClassOffset() * 8 ;
fdes->setBitFieldStart( 32 - (field_offset_bits % 32) - fdes->getBitFieldWidth()) ;
fdes->setBitFieldByteOffset((field_offset_bits / 32) * 4 ) ;
}
// If the current type is not canonical because of typedefs or template parameter substitution,
// traverse the canonical type
clang::QualType qt = field->getType() ;
if ( debug_level >= 3 ) {
std::cout << "FieldVisitor VisitFieldDecl" << std::endl ;
std::cout << " is_bitfield = " << fdes->isBitField() << std::endl ;
std::cout << " is_canonical = " << qt.isCanonical() << std::endl ;
//field->dump() ;
}
if ( !qt.isCanonical() ) {
fdes->setNonCanonicalTypeName(qt.getAsString()) ;
clang::QualType ct = qt.getCanonicalType() ;
std::string tst_string = ct.getAsString() ;
if ( debug_level >= 3 ) {
std::cout << "\033[33mFieldVisitor VisitFieldDecl: Processing canonical type\033[00m" << std::endl ;
ct.dump() ;
}
TraverseType(ct) ;
// We have extracted the canonical type and everything else we need
// return false so we cut off processing of this AST branch
return false ;
}
return true ;
}
bool FieldVisitor::VisitTypedefType(clang::TypedefType *tt) {
size_t pos ;
if ( debug_level >= 3 ) {
std::cout << "FieldVisitor VisitTypedefType " << fdes->getName() << std::endl ;
tt->dump() ; std::cout << std::endl ;
}
// return if we have set a typename
if ( fdes->hasType() ) {
return true ;
}
if ( tt->isEnumeralType() ) {
if ( debug_level >= 4 ) {
std::cout << " FieldVisitor VisitTypedefType enumerated" << std::endl ;
}
fdes->setEnumString("TRICK_ENUMERATED") ;
fdes->setEnum(true) ;
std::string enum_type_name = tt->desugar().getAsString() ;
if ((pos = enum_type_name.find("enum ")) != std::string::npos ) {
enum_type_name.erase(pos , 5) ;
}
//std::cout << "enum name " << enum_type_name << std::endl ;
fdes->setTypeName(enum_type_name) ;
// Save container namespaces and classes.
const clang::TypedefNameDecl * tnd = tt->getDecl() ;
fdes->getNamespacesAndClasses(tnd->getDeclContext()) ;
fdes->setHasType(true) ;
} else if ( tt->isRecordType() ) {
std::string type_name = tt->desugar().getAsString() ;
if ((pos = type_name.find("class ")) != std::string::npos ) {
type_name.erase(pos , 6) ;
}
if ((pos = type_name.find("struct ")) != std::string::npos ) {
type_name.erase(pos , 7) ;
}
if ((pos = type_name.find("union ")) != std::string::npos ) {
type_name.erase(pos , 6) ;
}
// Typedefs of STL containers are ignored.
if ((pos = type_name.find("std::")) != std::string::npos ) {
fdes->setIO(0) ;
return true ;
} else if (ignore_types.types.find(type_name) != ignore_types.types.end() ) {
// Ignore other system types that do not start with std::
fdes->setIO(0) ;
return true ;
}
if ( ! type_name.compare(0, 17, "basic_string<char") ) {
fdes->setEnumString("TRICK_STRING") ;
type_name = "std::string";
} else if ( ! type_name.compare("_IO_FILE") ) {
fdes->setEnumString("TRICK_FILE_PTR") ;
} else if ( ! type_name.compare("__sFILE") ) {
fdes->setEnumString("TRICK_FILE_PTR") ;
} else {
fdes->setEnumString("TRICK_STRUCTURED") ;
fdes->setRecord(true) ;
const clang::TypedefNameDecl * tnd = tt->getDecl() ;
fdes->getNamespacesAndClasses(tnd->getDeclContext()) ;
// If this typedef resolves to a class/template in std namespace, don't process it.
if ( fdes->namespace_begin() != fdes->namespace_end() ) {
std::string first_ns = *(fdes->namespace_begin()) ;
if ( ! first_ns.compare("std") ) {
fdes->setIO(0) ;
return true ;
}
}
// test to see if the typedef name is a template type we have processed.
std::map < std::string , ClassValues * >::iterator mit ;
mit = processed_templates.find(type_name) ;
if ( mit != processed_templates.end() ) {
if ( debug_level >= 4 ) {
std::cout << "templated type has been processed before " << (*mit).second->getMangledTypeName() << std::endl ;
}
type_name = (*mit).second->getMangledTypeName() ;
} else {
// TODO: Is there a better way to determine if this is a template or not? Right now we're
// checking if the typename has a "<" character.
if ( type_name.find("<") != std::string::npos ) {
clang::CXXRecordDecl *trec = tt->getAsCXXRecordDecl() ;
unsigned int before_enum_size ;
if ( debug_level >= 4 ) {
std::cout << "templated type unprocessed! " << type_name << std::endl ;
trec->dump() ; std::cout << std::endl ;
}
CXXRecordVisitor template_spec_cvis(ci , cs, hsd , pa, false, false, true) ;
template_spec_cvis.get_class_data()->setMangledTypeName(fdes->getName() + "_" +
clang::cast<clang::CXXRecordDecl>(trec)->getNameAsString()) ;
template_spec_cvis.TraverseCXXRecordDecl(trec) ;
fdes->setMangledTypeName(fdes->getName() + "_" + template_spec_cvis.get_class_data()->getName()) ;
template_spec_cvis.get_class_data()->setName(type_name) ;
template_spec_cvis.get_class_data()->setFileName(fdes->getFileName()) ;
ClassValues * cval = new ClassValues(*(template_spec_cvis.get_class_data())) ;
processed_templates.insert(std::pair< std::string , ClassValues * >(type_name , cval)) ;
pa.printClass(template_spec_cvis.get_class_data()) ;
fdes->setEnumString("TRICK_STRUCTURED") ;
fdes->setRecord(true) ;
fdes->setHasType(true) ;
if ( debug_level >= 4 ) {
std::cout << "Added template class from typedeffed field " << type_name << std::endl ;
std::cout << " fdes->getMangledTypeName " << fdes->getMangledTypeName() << std::endl ;
std::cout << *cval << std::endl ;
}
}
}
}
fdes->setTypeName(type_name) ;
fdes->setHasType(true) ;
} else if ( tt->isBuiltinType() ) {
if ( debug_level >= 4 ) {
std::cout << " FieldVisitor VisitTypedefType builtintype" << std::endl ;
}
const clang::BuiltinType * bt = tt->getAs<clang::BuiltinType>() ;
VisitBuiltinType((clang::BuiltinType *)bt) ;
} else if ( tt->isArrayType() || tt->isPointerType()) {
clang::QualType qt = tt->desugar() ;
if ( debug_level >= 4 ) {
std::cout << "Typedef to constant array type" << std::endl ;
qt->dump() ;
}
// Calling visit type recursively with the typedeffed type
TraverseType(qt) ;
if ( debug_level >= 4 ) {
std::cout << "After TraverseType" << std::endl ;
std::cout << *fdes << std::endl ;
}
} else {
if ( debug_level >= 4 ) {
std::cout << "Typedef to something we don't handle yet" << std::endl ;
}
}
return true;
}
