clang::Decl *
ClangASTImporter::CopyDecl (clang::ASTContext *dst_ast,
clang::ASTContext *src_ast,
clang::Decl *decl)
{
MinionSP minion_sp;
minion_sp = GetMinion(dst_ast, src_ast);
if (minion_sp)
{
clang::Decl *result = minion_sp->Import(decl);
if (!result)
{
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
if (log)
{
lldb::user_id_t user_id;
ClangASTMetadata *metadata = GetDeclMetadata(decl);
if (metadata)
user_id = metadata->GetUserID();
if (NamedDecl *named_decl = dyn_cast<NamedDecl>(decl))
log->Printf(" [ClangASTImporter] WARNING: Failed to import a %s '%s', metadata 0x%" PRIx64,
decl->getDeclKindName(),
named_decl->getNameAsString().c_str(),
user_id);
else
log->Printf(" [ClangASTImporter] WARNING: Failed to import a %s, metadata 0x%" PRIx64,
decl->getDeclKindName(),
user_id);
}
}
return result;
}
return nullptr;
}
clang::Decl *ClangASTImporter::CopyDecl(clang::ASTContext *dst_ast,
clang::ASTContext *src_ast,
clang::Decl *decl) {
ImporterDelegateSP delegate_sp;
delegate_sp = GetDelegate(dst_ast, src_ast);
ASTImporterDelegate::CxxModuleScope std_scope(*delegate_sp, dst_ast);
if (delegate_sp) {
clang::Decl *result = delegate_sp->Import(decl);
if (!result) {
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
if (log) {
lldb::user_id_t user_id = LLDB_INVALID_UID;
ClangASTMetadata *metadata = GetDeclMetadata(decl);
if (metadata)
user_id = metadata->GetUserID();
if (NamedDecl *named_decl = dyn_cast<NamedDecl>(decl))
log->Printf(" [ClangASTImporter] WARNING: Failed to import a %s "
"'%s', metadata 0x%" PRIx64,
decl->getDeclKindName(),
named_decl->getNameAsString().c_str(), user_id);
else
log->Printf(" [ClangASTImporter] WARNING: Failed to import a %s, "
"metadata 0x%" PRIx64,
decl->getDeclKindName(), user_id);
}
}
return result;
}
return nullptr;
}
void
ClangUserExpression::ScanContext(ExecutionContext &exe_ctx, Error &err)
{
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
if (log)
log->Printf("ClangUserExpression::ScanContext()");
m_target = exe_ctx.GetTargetPtr();
if (!(m_allow_cxx || m_allow_objc))
{
if (log)
log->Printf(" [CUE::SC] Settings inhibit C++ and Objective-C");
return;
}
StackFrame *frame = exe_ctx.GetFramePtr();
if (frame == NULL)
{
if (log)
log->Printf(" [CUE::SC] Null stack frame");
return;
}
SymbolContext sym_ctx = frame->GetSymbolContext(lldb::eSymbolContextFunction | lldb::eSymbolContextBlock);
if (!sym_ctx.function)
{
if (log)
log->Printf(" [CUE::SC] Null function");
return;
}
// Find the block that defines the function represented by "sym_ctx"
Block *function_block = sym_ctx.GetFunctionBlock();
if (!function_block)
{
if (log)
log->Printf(" [CUE::SC] Null function block");
return;
}
clang::DeclContext *decl_context = function_block->GetClangDeclContext();
if (!decl_context)
{
if (log)
log->Printf(" [CUE::SC] Null decl context");
return;
}
if (clang::CXXMethodDecl *method_decl = llvm::dyn_cast<clang::CXXMethodDecl>(decl_context))
{
if (m_allow_cxx && method_decl->isInstance())
{
if (m_enforce_valid_object)
{
lldb::VariableListSP variable_list_sp (function_block->GetBlockVariableList (true));
const char *thisErrorString = "Stopped in a C++ method, but 'this' isn't available; pretending we are in a generic context";
if (!variable_list_sp)
{
err.SetErrorString(thisErrorString);
return;
}
lldb::VariableSP this_var_sp (variable_list_sp->FindVariable(ConstString("this")));
if (!this_var_sp ||
!this_var_sp->IsInScope(frame) ||
!this_var_sp->LocationIsValidForFrame (frame))
{
err.SetErrorString(thisErrorString);
return;
}
}
m_cplusplus = true;
m_needs_object_ptr = true;
}
}
else if (clang::ObjCMethodDecl *method_decl = llvm::dyn_cast<clang::ObjCMethodDecl>(decl_context))
{
if (m_allow_objc)
{
if (m_enforce_valid_object)
{
lldb::VariableListSP variable_list_sp (function_block->GetBlockVariableList (true));
const char *selfErrorString = "Stopped in an Objective-C method, but 'self' isn't available; pretending we are in a generic context";
if (!variable_list_sp)
{
err.SetErrorString(selfErrorString);
return;
}
lldb::VariableSP self_variable_sp = variable_list_sp->FindVariable(ConstString("self"));
if (!self_variable_sp ||
!self_variable_sp->IsInScope(frame) ||
!self_variable_sp->LocationIsValidForFrame (frame))
{
err.SetErrorString(selfErrorString);
return;
}
}
m_objectivec = true;
m_needs_object_ptr = true;
if (!method_decl->isInstanceMethod())
m_static_method = true;
}
}
else if (clang::FunctionDecl *function_decl = llvm::dyn_cast<clang::FunctionDecl>(decl_context))
{
// We might also have a function that said in the debug information that it captured an
// object pointer. The best way to deal with getting to the ivars at present it by pretending
// that this is a method of a class in whatever runtime the debug info says the object pointer
// belongs to. Do that here.
ClangASTMetadata *metadata = ClangASTContext::GetMetadata (&decl_context->getParentASTContext(), function_decl);
if (metadata && metadata->HasObjectPtr())
{
lldb::LanguageType language = metadata->GetObjectPtrLanguage();
if (language == lldb::eLanguageTypeC_plus_plus)
{
if (m_enforce_valid_object)
{
lldb::VariableListSP variable_list_sp (function_block->GetBlockVariableList (true));
const char *thisErrorString = "Stopped in a context claiming to capture a C++ object pointer, but 'this' isn't available; pretending we are in a generic context";
if (!variable_list_sp)
{
err.SetErrorString(thisErrorString);
return;
}
lldb::VariableSP this_var_sp (variable_list_sp->FindVariable(ConstString("this")));
if (!this_var_sp ||
!this_var_sp->IsInScope(frame) ||
!this_var_sp->LocationIsValidForFrame (frame))
{
err.SetErrorString(thisErrorString);
return;
}
}
m_cplusplus = true;
m_needs_object_ptr = true;
}
else if (language == lldb::eLanguageTypeObjC)
{
if (m_enforce_valid_object)
{
lldb::VariableListSP variable_list_sp (function_block->GetBlockVariableList (true));
const char *selfErrorString = "Stopped in a context claiming to capture an Objective-C object pointer, but 'self' isn't available; pretending we are in a generic context";
if (!variable_list_sp)
{
err.SetErrorString(selfErrorString);
return;
}
lldb::VariableSP self_variable_sp = variable_list_sp->FindVariable(ConstString("self"));
if (!self_variable_sp ||
!self_variable_sp->IsInScope(frame) ||
!self_variable_sp->LocationIsValidForFrame (frame))
{
err.SetErrorString(selfErrorString);
return;
}
Type *self_type = self_variable_sp->GetType();
if (!self_type)
{
err.SetErrorString(selfErrorString);
return;
}
ClangASTType self_clang_type = self_type->GetClangForwardType();
if (!self_clang_type)
{
err.SetErrorString(selfErrorString);
return;
}
if (self_clang_type.IsObjCClassType())
{
return;
}
else if (self_clang_type.IsObjCObjectPointerType())
{
m_objectivec = true;
m_needs_object_ptr = true;
}
else
{
err.SetErrorString(selfErrorString);
return;
}
}
else
{
m_objectivec = true;
m_needs_object_ptr = true;
}
}
}
}
}
void ClangASTImporter::ASTImporterDelegate::Imported(clang::Decl *from,
clang::Decl *to) {
ClangASTMetrics::RegisterClangImport();
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
// Some decls shouldn't be tracked here because they were not created by
// copying 'from' to 'to'. Just exit early for those.
if (m_decls_to_ignore.find(to) != m_decls_to_ignore.end())
return clang::ASTImporter::Imported(from, to);
lldb::user_id_t user_id = LLDB_INVALID_UID;
ClangASTMetadata *metadata = m_master.GetDeclMetadata(from);
if (metadata)
user_id = metadata->GetUserID();
if (log) {
if (NamedDecl *from_named_decl = dyn_cast<clang::NamedDecl>(from)) {
std::string name_string;
llvm::raw_string_ostream name_stream(name_string);
from_named_decl->printName(name_stream);
name_stream.flush();
log->Printf(" [ClangASTImporter] Imported (%sDecl*)%p, named %s (from "
"(Decl*)%p), metadata 0x%" PRIx64,
from->getDeclKindName(), static_cast<void *>(to),
name_string.c_str(), static_cast<void *>(from), user_id);
} else {
log->Printf(" [ClangASTImporter] Imported (%sDecl*)%p (from "
"(Decl*)%p), metadata 0x%" PRIx64,
from->getDeclKindName(), static_cast<void *>(to),
static_cast<void *>(from), user_id);
}
}
ASTContextMetadataSP to_context_md =
m_master.GetContextMetadata(&to->getASTContext());
ASTContextMetadataSP from_context_md =
m_master.MaybeGetContextMetadata(m_source_ctx);
if (from_context_md) {
OriginMap &origins = from_context_md->m_origins;
OriginMap::iterator origin_iter = origins.find(from);
if (origin_iter != origins.end()) {
if (to_context_md->m_origins.find(to) == to_context_md->m_origins.end() ||
user_id != LLDB_INVALID_UID) {
if (origin_iter->second.ctx != &to->getASTContext())
to_context_md->m_origins[to] = origin_iter->second;
}
ImporterDelegateSP direct_completer =
m_master.GetDelegate(&to->getASTContext(), origin_iter->second.ctx);
if (direct_completer.get() != this)
direct_completer->ASTImporter::Imported(origin_iter->second.decl, to);
if (log)
log->Printf(" [ClangASTImporter] Propagated origin "
"(Decl*)%p/(ASTContext*)%p from (ASTContext*)%p to "
"(ASTContext*)%p",
static_cast<void *>(origin_iter->second.decl),
static_cast<void *>(origin_iter->second.ctx),
static_cast<void *>(&from->getASTContext()),
static_cast<void *>(&to->getASTContext()));
} else {
if (m_decls_to_deport && m_decls_already_deported) {
if (isa<TagDecl>(to) || isa<ObjCInterfaceDecl>(to)) {
RecordDecl *from_record_decl = dyn_cast<RecordDecl>(from);
if (from_record_decl == nullptr ||
!from_record_decl->isInjectedClassName()) {
NamedDecl *to_named_decl = dyn_cast<NamedDecl>(to);
if (!m_decls_already_deported->count(to_named_decl))
m_decls_to_deport->insert(to_named_decl);
}
}
}
if (to_context_md->m_origins.find(to) == to_context_md->m_origins.end() ||
user_id != LLDB_INVALID_UID) {
to_context_md->m_origins[to] = DeclOrigin(m_source_ctx, from);
}
if (log)
log->Printf(" [ClangASTImporter] Decl has no origin information in "
"(ASTContext*)%p",
static_cast<void *>(&from->getASTContext()));
}
if (clang::NamespaceDecl *to_namespace =
dyn_cast<clang::NamespaceDecl>(to)) {
clang::NamespaceDecl *from_namespace =
dyn_cast<clang::NamespaceDecl>(from);
NamespaceMetaMap &namespace_maps = from_context_md->m_namespace_maps;
NamespaceMetaMap::iterator namespace_map_iter =
namespace_maps.find(from_namespace);
if (namespace_map_iter != namespace_maps.end())
to_context_md->m_namespace_maps[to_namespace] =
namespace_map_iter->second;
}
} else {
to_context_md->m_origins[to] = DeclOrigin(m_source_ctx, from);
if (log)
log->Printf(" [ClangASTImporter] Sourced origin "
"(Decl*)%p/(ASTContext*)%p into (ASTContext*)%p",
static_cast<void *>(from), static_cast<void *>(m_source_ctx),
static_cast<void *>(&to->getASTContext()));
}
if (TagDecl *from_tag_decl = dyn_cast<TagDecl>(from)) {
TagDecl *to_tag_decl = dyn_cast<TagDecl>(to);
to_tag_decl->setHasExternalLexicalStorage();
to_tag_decl->getPrimaryContext()->setMustBuildLookupTable();
if (log)
log->Printf(
" [ClangASTImporter] To is a TagDecl - attributes %s%s [%s->%s]",
(to_tag_decl->hasExternalLexicalStorage() ? " Lexical" : ""),
(to_tag_decl->hasExternalVisibleStorage() ? " Visible" : ""),
(from_tag_decl->isCompleteDefinition() ? "complete" : "incomplete"),
(to_tag_decl->isCompleteDefinition() ? "complete" : "incomplete"));
}
if (isa<NamespaceDecl>(from)) {
NamespaceDecl *to_namespace_decl = dyn_cast<NamespaceDecl>(to);
m_master.BuildNamespaceMap(to_namespace_decl);
to_namespace_decl->setHasExternalVisibleStorage();
}
if (isa<ObjCContainerDecl>(from)) {
ObjCContainerDecl *to_container_decl = dyn_cast<ObjCContainerDecl>(to);
to_container_decl->setHasExternalLexicalStorage();
to_container_decl->setHasExternalVisibleStorage();
/*to_interface_decl->setExternallyCompleted();*/
if (log) {
if (ObjCInterfaceDecl *to_interface_decl =
llvm::dyn_cast<ObjCInterfaceDecl>(to_container_decl)) {
log->Printf(
" [ClangASTImporter] To is an ObjCInterfaceDecl - attributes "
"%s%s%s",
(to_interface_decl->hasExternalLexicalStorage() ? " Lexical" : ""),
(to_interface_decl->hasExternalVisibleStorage() ? " Visible" : ""),
(to_interface_decl->hasDefinition() ? " HasDefinition" : ""));
} else {
log->Printf(
" [ClangASTImporter] To is an %sDecl - attributes %s%s",
((Decl *)to_container_decl)->getDeclKindName(),
(to_container_decl->hasExternalLexicalStorage() ? " Lexical" : ""),
(to_container_decl->hasExternalVisibleStorage() ? " Visible" : ""));
}
}
}
}
clang::Decl *
ClangASTImporter::Minion::Imported (clang::Decl *from, clang::Decl *to)
{
ClangASTMetrics::RegisterClangImport();
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
if (log)
{
lldb::user_id_t user_id;
ClangASTMetadata *metadata = m_master.GetDeclMetadata(from);
if (metadata)
user_id = metadata->GetUserID();
if (NamedDecl *from_named_decl = dyn_cast<clang::NamedDecl>(from))
{
std::string name_string;
llvm::raw_string_ostream name_stream(name_string);
from_named_decl->printName(name_stream);
name_stream.flush();
log->Printf(" [ClangASTImporter] Imported (%sDecl*)%p, named %s (from (Decl*)%p), metadata 0x%" PRIx64,
from->getDeclKindName(), static_cast<void*>(to),
name_string.c_str(), static_cast<void*>(from),
user_id);
}
else
{
log->Printf(" [ClangASTImporter] Imported (%sDecl*)%p (from (Decl*)%p), metadata 0x%" PRIx64,
from->getDeclKindName(), static_cast<void*>(to),
static_cast<void*>(from), user_id);
}
}
ASTContextMetadataSP to_context_md = m_master.GetContextMetadata(&to->getASTContext());
ASTContextMetadataSP from_context_md = m_master.MaybeGetContextMetadata(m_source_ctx);
if (from_context_md)
{
OriginMap &origins = from_context_md->m_origins;
OriginMap::iterator origin_iter = origins.find(from);
if (origin_iter != origins.end())
{
to_context_md->m_origins[to] = origin_iter->second;
MinionSP direct_completer = m_master.GetMinion(&to->getASTContext(), origin_iter->second.ctx);
if (direct_completer.get() != this)
direct_completer->ASTImporter::Imported(origin_iter->second.decl, to);
if (log)
log->Printf(" [ClangASTImporter] Propagated origin (Decl*)%p/(ASTContext*)%p from (ASTContext*)%p to (ASTContext*)%p",
static_cast<void*>(origin_iter->second.decl),
static_cast<void*>(origin_iter->second.ctx),
static_cast<void*>(&from->getASTContext()),
static_cast<void*>(&to->getASTContext()));
}
else
{
if (m_decls_to_deport && m_decls_already_deported)
{
if (isa<TagDecl>(to) || isa<ObjCInterfaceDecl>(to))
{
NamedDecl *to_named_decl = dyn_cast<NamedDecl>(to);
if (!m_decls_already_deported->count(to_named_decl))
m_decls_to_deport->insert(to_named_decl);
}
}
to_context_md->m_origins[to] = DeclOrigin(m_source_ctx, from);
if (log)
log->Printf(" [ClangASTImporter] Decl has no origin information in (ASTContext*)%p",
static_cast<void*>(&from->getASTContext()));
}
if (clang::NamespaceDecl *to_namespace = dyn_cast<clang::NamespaceDecl>(to))
{
clang::NamespaceDecl *from_namespace = dyn_cast<clang::NamespaceDecl>(from);
NamespaceMetaMap &namespace_maps = from_context_md->m_namespace_maps;
NamespaceMetaMap::iterator namespace_map_iter = namespace_maps.find(from_namespace);
if (namespace_map_iter != namespace_maps.end())
to_context_md->m_namespace_maps[to_namespace] = namespace_map_iter->second;
}
}
else
{
to_context_md->m_origins[to] = DeclOrigin (m_source_ctx, from);
if (log)
log->Printf(" [ClangASTImporter] Sourced origin (Decl*)%p/(ASTContext*)%p into (ASTContext*)%p",
static_cast<void*>(from),
static_cast<void*>(m_source_ctx),
static_cast<void*>(&to->getASTContext()));
}
if (TagDecl *from_tag_decl = dyn_cast<TagDecl>(from))
{
TagDecl *to_tag_decl = dyn_cast<TagDecl>(to);
to_tag_decl->setHasExternalLexicalStorage();
to_tag_decl->setMustBuildLookupTable();
if (log)
log->Printf(" [ClangASTImporter] To is a TagDecl - attributes %s%s [%s->%s]",
(to_tag_decl->hasExternalLexicalStorage() ? " Lexical" : ""),
(to_tag_decl->hasExternalVisibleStorage() ? " Visible" : ""),
(from_tag_decl->isCompleteDefinition() ? "complete" : "incomplete"),
(to_tag_decl->isCompleteDefinition() ? "complete" : "incomplete"));
}
if (isa<NamespaceDecl>(from))
{
NamespaceDecl *to_namespace_decl = dyn_cast<NamespaceDecl>(to);
m_master.BuildNamespaceMap(to_namespace_decl);
to_namespace_decl->setHasExternalVisibleStorage();
}
if (isa<ObjCInterfaceDecl>(from))
{
ObjCInterfaceDecl *to_interface_decl = dyn_cast<ObjCInterfaceDecl>(to);
to_interface_decl->setHasExternalLexicalStorage();
to_interface_decl->setHasExternalVisibleStorage();
/*to_interface_decl->setExternallyCompleted();*/
if (log)
log->Printf(" [ClangASTImporter] To is an ObjCInterfaceDecl - attributes %s%s%s",
(to_interface_decl->hasExternalLexicalStorage() ? " Lexical" : ""),
(to_interface_decl->hasExternalVisibleStorage() ? " Visible" : ""),
(to_interface_decl->hasDefinition() ? " HasDefinition" : ""));
}
return clang::ASTImporter::Imported(from, to);
}