Files
llvm/lldb/source/Expression/ClangASTSource.cpp
Greg Clayton 99558cc424 Final bit of type system cleanup that abstracts declaration contexts into lldb_private::CompilerDeclContext and renames ClangType to CompilerType in many accessors and functions.
Create a new "lldb_private::CompilerDeclContext" class that will replace all direct uses of "clang::DeclContext" when used in compiler agnostic code, yet still allow for conversion to clang::DeclContext subclasses by clang specific code. This completes the abstraction of type parsing by removing all "clang::" references from the SymbolFileDWARF. The new "lldb_private::CompilerDeclContext" class abstracts decl contexts found in compiler type systems so they can be used in internal API calls. The TypeSystem is required to support CompilerDeclContexts with new pure virtual functions that start with "DeclContext" in the member function names. Converted all code that used lldb_private::ClangNamespaceDecl over to use the new CompilerDeclContext class and removed the ClangNamespaceDecl.cpp and ClangNamespaceDecl.h files.

Removed direct use of clang APIs from SBType and now use the abstract type systems to correctly explore types.

Bulk renames for things that used to return a ClangASTType which is now CompilerType:

    "Type::GetClangFullType()" to "Type::GetFullCompilerType()"
    "Type::GetClangLayoutType()" to "Type::GetLayoutCompilerType()"
    "Type::GetClangForwardType()" to "Type::GetForwardCompilerType()"
    "Value::GetClangType()" to "Value::GetCompilerType()"
    "Value::SetClangType (const CompilerType &)" to "Value::SetCompilerType (const CompilerType &)"
    "ValueObject::GetClangType ()" to "ValueObject::GetCompilerType()"
    many more renames that are similar.

llvm-svn: 245905
2015-08-24 23:46:31 +00:00

2092 lines
72 KiB
C++

//===-- ClangASTSource.cpp ---------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "clang/AST/ASTContext.h"
#include "clang/AST/RecordLayout.h"
#include "lldb/Core/Log.h"
#include "lldb/Core/Module.h"
#include "lldb/Core/ModuleList.h"
#include "lldb/Expression/ASTDumper.h"
#include "lldb/Expression/ClangASTSource.h"
#include "lldb/Expression/ClangExpression.h"
#include "lldb/Expression/ClangModulesDeclVendor.h"
#include "lldb/Symbol/ClangASTContext.h"
#include "lldb/Symbol/CompilerDeclContext.h"
#include "lldb/Symbol/Function.h"
#include "lldb/Symbol/SymbolVendor.h"
#include "lldb/Symbol/TaggedASTType.h"
#include "lldb/Target/ObjCLanguageRuntime.h"
#include "lldb/Target/Target.h"
#include <vector>
using namespace clang;
using namespace lldb_private;
//------------------------------------------------------------------
// Scoped class that will remove an active lexical decl from the set
// when it goes out of scope.
//------------------------------------------------------------------
namespace {
class ScopedLexicalDeclEraser
{
public:
ScopedLexicalDeclEraser(std::set<const clang::Decl *> &decls,
const clang::Decl *decl)
: m_active_lexical_decls(decls), m_decl(decl)
{
}
~ScopedLexicalDeclEraser()
{
m_active_lexical_decls.erase(m_decl);
}
private:
std::set<const clang::Decl *> &m_active_lexical_decls;
const clang::Decl *m_decl;
};
}
ClangASTSource::~ClangASTSource()
{
m_ast_importer->ForgetDestination(m_ast_context);
// We are in the process of destruction, don't create clang ast context on demand
// by passing false to Target::GetScratchClangASTContext(create_on_demand).
ClangASTContext *scratch_clang_ast_context = m_target->GetScratchClangASTContext(false);
if (!scratch_clang_ast_context)
return;
clang::ASTContext *scratch_ast_context = scratch_clang_ast_context->getASTContext();
if (!scratch_ast_context)
return;
if (m_ast_context != scratch_ast_context)
m_ast_importer->ForgetSource(scratch_ast_context, m_ast_context);
}
void
ClangASTSource::StartTranslationUnit(ASTConsumer *Consumer)
{
if (!m_ast_context)
return;
m_ast_context->getTranslationUnitDecl()->setHasExternalVisibleStorage();
m_ast_context->getTranslationUnitDecl()->setHasExternalLexicalStorage();
}
// The core lookup interface.
bool
ClangASTSource::FindExternalVisibleDeclsByName
(
const DeclContext *decl_ctx,
DeclarationName clang_decl_name
)
{
if (!m_ast_context)
{
SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
return false;
}
if (GetImportInProgress())
{
SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
return false;
}
std::string decl_name (clang_decl_name.getAsString());
// if (m_decl_map.DoingASTImport ())
// return DeclContext::lookup_result();
//
switch (clang_decl_name.getNameKind()) {
// Normal identifiers.
case DeclarationName::Identifier:
{
clang::IdentifierInfo *identifier_info = clang_decl_name.getAsIdentifierInfo();
if (!identifier_info ||
identifier_info->getBuiltinID() != 0)
{
SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
return false;
}
}
break;
// Operator names.
case DeclarationName::CXXOperatorName:
case DeclarationName::CXXLiteralOperatorName:
break;
// Using directives found in this context.
// Tell Sema we didn't find any or we'll end up getting asked a *lot*.
case DeclarationName::CXXUsingDirective:
SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
return false;
case DeclarationName::ObjCZeroArgSelector:
case DeclarationName::ObjCOneArgSelector:
case DeclarationName::ObjCMultiArgSelector:
{
llvm::SmallVector<NamedDecl*, 1> method_decls;
NameSearchContext method_search_context (*this, method_decls, clang_decl_name, decl_ctx);
FindObjCMethodDecls(method_search_context);
SetExternalVisibleDeclsForName (decl_ctx, clang_decl_name, method_decls);
return (method_decls.size() > 0);
}
// These aren't possible in the global context.
case DeclarationName::CXXConstructorName:
case DeclarationName::CXXDestructorName:
case DeclarationName::CXXConversionFunctionName:
SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
return false;
}
if (!GetLookupsEnabled())
{
// Wait until we see a '$' at the start of a name before we start doing
// any lookups so we can avoid lookup up all of the builtin types.
if (!decl_name.empty() && decl_name[0] == '$')
{
SetLookupsEnabled (true);
}
else
{
SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
return false;
}
}
ConstString const_decl_name(decl_name.c_str());
const char *uniqued_const_decl_name = const_decl_name.GetCString();
if (m_active_lookups.find (uniqued_const_decl_name) != m_active_lookups.end())
{
// We are currently looking up this name...
SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
return false;
}
m_active_lookups.insert(uniqued_const_decl_name);
// static uint32_t g_depth = 0;
// ++g_depth;
// printf("[%5u] FindExternalVisibleDeclsByName() \"%s\"\n", g_depth, uniqued_const_decl_name);
llvm::SmallVector<NamedDecl*, 4> name_decls;
NameSearchContext name_search_context(*this, name_decls, clang_decl_name, decl_ctx);
FindExternalVisibleDecls(name_search_context);
SetExternalVisibleDeclsForName (decl_ctx, clang_decl_name, name_decls);
// --g_depth;
m_active_lookups.erase (uniqued_const_decl_name);
return (name_decls.size() != 0);
}
void
ClangASTSource::CompleteType (TagDecl *tag_decl)
{
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
static unsigned int invocation_id = 0;
unsigned int current_id = invocation_id++;
if (log)
{
log->Printf(" CompleteTagDecl[%u] on (ASTContext*)%p Completing (TagDecl*)%p named %s",
current_id, static_cast<void*>(m_ast_context),
static_cast<void*>(tag_decl),
tag_decl->getName().str().c_str());
log->Printf(" CTD[%u] Before:", current_id);
ASTDumper dumper((Decl*)tag_decl);
dumper.ToLog(log, " [CTD] ");
}
auto iter = m_active_lexical_decls.find(tag_decl);
if (iter != m_active_lexical_decls.end())
return;
m_active_lexical_decls.insert(tag_decl);
ScopedLexicalDeclEraser eraser(m_active_lexical_decls, tag_decl);
if (!m_ast_importer->CompleteTagDecl (tag_decl))
{
// We couldn't complete the type. Maybe there's a definition
// somewhere else that can be completed.
if (log)
log->Printf(" CTD[%u] Type could not be completed in the module in which it was first found.", current_id);
bool found = false;
DeclContext *decl_ctx = tag_decl->getDeclContext();
if (const NamespaceDecl *namespace_context = dyn_cast<NamespaceDecl>(decl_ctx))
{
ClangASTImporter::NamespaceMapSP namespace_map = m_ast_importer->GetNamespaceMap(namespace_context);
if (log && log->GetVerbose())
log->Printf(" CTD[%u] Inspecting namespace map %p (%d entries)",
current_id, static_cast<void*>(namespace_map.get()),
static_cast<int>(namespace_map->size()));
if (!namespace_map)
return;
for (ClangASTImporter::NamespaceMap::iterator i = namespace_map->begin(), e = namespace_map->end();
i != e && !found;
++i)
{
if (log)
log->Printf(" CTD[%u] Searching namespace %s in module %s",
current_id,
i->second.GetName().AsCString(),
i->first->GetFileSpec().GetFilename().GetCString());
TypeList types;
SymbolContext null_sc;
ConstString name(tag_decl->getName().str().c_str());
i->first->FindTypesInNamespace(null_sc, name, &i->second, UINT32_MAX, types);
for (uint32_t ti = 0, te = types.GetSize();
ti != te && !found;
++ti)
{
lldb::TypeSP type = types.GetTypeAtIndex(ti);
if (!type)
continue;
CompilerType clang_type (type->GetFullCompilerType ());
if (!clang_type)
continue;
const TagType *tag_type = ClangASTContext::GetQualType(clang_type)->getAs<TagType>();
if (!tag_type)
continue;
TagDecl *candidate_tag_decl = const_cast<TagDecl*>(tag_type->getDecl());
if (m_ast_importer->CompleteTagDeclWithOrigin (tag_decl, candidate_tag_decl))
found = true;
}
}
}
else
{
TypeList types;
SymbolContext null_sc;
ConstString name(tag_decl->getName().str().c_str());
CompilerDeclContext namespace_decl;
const ModuleList &module_list = m_target->GetImages();
bool exact_match = false;
module_list.FindTypes (null_sc, name, exact_match, UINT32_MAX, types);
for (uint32_t ti = 0, te = types.GetSize();
ti != te && !found;
++ti)
{
lldb::TypeSP type = types.GetTypeAtIndex(ti);
if (!type)
continue;
CompilerType clang_type (type->GetFullCompilerType ());
if (!clang_type)
continue;
const TagType *tag_type = ClangASTContext::GetQualType(clang_type)->getAs<TagType>();
if (!tag_type)
continue;
TagDecl *candidate_tag_decl = const_cast<TagDecl*>(tag_type->getDecl());
if (m_ast_importer->CompleteTagDeclWithOrigin (tag_decl, candidate_tag_decl))
found = true;
}
}
}
if (log)
{
log->Printf(" [CTD] After:");
ASTDumper dumper((Decl*)tag_decl);
dumper.ToLog(log, " [CTD] ");
}
}
void
ClangASTSource::CompleteType (clang::ObjCInterfaceDecl *interface_decl)
{
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
if (log)
{
log->Printf(" [CompleteObjCInterfaceDecl] on (ASTContext*)%p Completing an ObjCInterfaceDecl named %s",
static_cast<void*>(m_ast_context),
interface_decl->getName().str().c_str());
log->Printf(" [COID] Before:");
ASTDumper dumper((Decl*)interface_decl);
dumper.ToLog(log, " [COID] ");
}
Decl *original_decl = NULL;
ASTContext *original_ctx = NULL;
if (m_ast_importer->ResolveDeclOrigin(interface_decl, &original_decl, &original_ctx))
{
if (ObjCInterfaceDecl *original_iface_decl = dyn_cast<ObjCInterfaceDecl>(original_decl))
{
ObjCInterfaceDecl *complete_iface_decl = GetCompleteObjCInterface(original_iface_decl);
if (complete_iface_decl && (complete_iface_decl != original_iface_decl))
{
m_ast_importer->SetDeclOrigin(interface_decl, original_iface_decl);
}
}
}
m_ast_importer->CompleteObjCInterfaceDecl (interface_decl);
if (interface_decl->getSuperClass() &&
interface_decl->getSuperClass() != interface_decl)
CompleteType(interface_decl->getSuperClass());
if (log)
{
log->Printf(" [COID] After:");
ASTDumper dumper((Decl*)interface_decl);
dumper.ToLog(log, " [COID] ");
}
}
clang::ObjCInterfaceDecl *
ClangASTSource::GetCompleteObjCInterface (clang::ObjCInterfaceDecl *interface_decl)
{
lldb::ProcessSP process(m_target->GetProcessSP());
if (!process)
return NULL;
ObjCLanguageRuntime *language_runtime(process->GetObjCLanguageRuntime());
if (!language_runtime)
return NULL;
ConstString class_name(interface_decl->getNameAsString().c_str());
lldb::TypeSP complete_type_sp(language_runtime->LookupInCompleteClassCache(class_name));
if (!complete_type_sp)
return NULL;
TypeFromUser complete_type = TypeFromUser(complete_type_sp->GetFullCompilerType ());
lldb::clang_type_t complete_opaque_type = complete_type.GetOpaqueQualType();
if (!complete_opaque_type)
return NULL;
const clang::Type *complete_clang_type = QualType::getFromOpaquePtr(complete_opaque_type).getTypePtr();
const ObjCInterfaceType *complete_interface_type = dyn_cast<ObjCInterfaceType>(complete_clang_type);
if (!complete_interface_type)
return NULL;
ObjCInterfaceDecl *complete_iface_decl(complete_interface_type->getDecl());
return complete_iface_decl;
}
void
ClangASTSource::FindExternalLexicalDecls (const DeclContext *decl_context,
llvm::function_ref<bool(Decl::Kind)> predicate,
llvm::SmallVectorImpl<Decl*> &decls)
{
ClangASTMetrics::RegisterLexicalQuery();
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
const Decl *context_decl = dyn_cast<Decl>(decl_context);
if (!context_decl)
return;
auto iter = m_active_lexical_decls.find(context_decl);
if (iter != m_active_lexical_decls.end())
return;
m_active_lexical_decls.insert(context_decl);
ScopedLexicalDeclEraser eraser(m_active_lexical_decls, context_decl);
static unsigned int invocation_id = 0;
unsigned int current_id = invocation_id++;
if (log)
{
if (const NamedDecl *context_named_decl = dyn_cast<NamedDecl>(context_decl))
log->Printf("FindExternalLexicalDecls[%u] on (ASTContext*)%p in '%s' (%sDecl*)%p",
current_id, static_cast<void*>(m_ast_context),
context_named_decl->getNameAsString().c_str(),
context_decl->getDeclKindName(),
static_cast<const void*>(context_decl));
else if(context_decl)
log->Printf("FindExternalLexicalDecls[%u] on (ASTContext*)%p in (%sDecl*)%p",
current_id, static_cast<void*>(m_ast_context),
context_decl->getDeclKindName(),
static_cast<const void*>(context_decl));
else
log->Printf("FindExternalLexicalDecls[%u] on (ASTContext*)%p in a NULL context",
current_id, static_cast<const void*>(m_ast_context));
}
Decl *original_decl = NULL;
ASTContext *original_ctx = NULL;
if (!m_ast_importer->ResolveDeclOrigin(context_decl, &original_decl, &original_ctx))
return;
if (log)
{
log->Printf(" FELD[%u] Original decl (ASTContext*)%p (Decl*)%p:",
current_id, static_cast<void*>(original_ctx),
static_cast<void*>(original_decl));
ASTDumper(original_decl).ToLog(log, " ");
}
if (ObjCInterfaceDecl *original_iface_decl = dyn_cast<ObjCInterfaceDecl>(original_decl))
{
ObjCInterfaceDecl *complete_iface_decl = GetCompleteObjCInterface(original_iface_decl);
if (complete_iface_decl && (complete_iface_decl != original_iface_decl))
{
original_decl = complete_iface_decl;
original_ctx = &complete_iface_decl->getASTContext();
m_ast_importer->SetDeclOrigin(context_decl, original_iface_decl);
}
}
if (TagDecl *original_tag_decl = dyn_cast<TagDecl>(original_decl))
{
ExternalASTSource *external_source = original_ctx->getExternalSource();
if (external_source)
external_source->CompleteType (original_tag_decl);
}
const DeclContext *original_decl_context = dyn_cast<DeclContext>(original_decl);
if (!original_decl_context)
return;
for (TagDecl::decl_iterator iter = original_decl_context->decls_begin();
iter != original_decl_context->decls_end();
++iter)
{
Decl *decl = *iter;
if (predicate(decl->getKind()))
{
if (log)
{
ASTDumper ast_dumper(decl);
if (const NamedDecl *context_named_decl = dyn_cast<NamedDecl>(context_decl))
log->Printf(" FELD[%d] Adding [to %sDecl %s] lexical %sDecl %s", current_id, context_named_decl->getDeclKindName(), context_named_decl->getNameAsString().c_str(), decl->getDeclKindName(), ast_dumper.GetCString());
else
log->Printf(" FELD[%d] Adding lexical %sDecl %s", current_id, decl->getDeclKindName(), ast_dumper.GetCString());
}
Decl *copied_decl = m_ast_importer->CopyDecl(m_ast_context, original_ctx, decl);
if (!copied_decl)
continue;
if (FieldDecl *copied_field = dyn_cast<FieldDecl>(copied_decl))
{
QualType copied_field_type = copied_field->getType();
m_ast_importer->RequireCompleteType(copied_field_type);
}
DeclContext *decl_context_non_const = const_cast<DeclContext *>(decl_context);
if (copied_decl->getDeclContext() != decl_context)
{
if (copied_decl->getDeclContext()->containsDecl(copied_decl))
copied_decl->getDeclContext()->removeDecl(copied_decl);
copied_decl->setDeclContext(decl_context_non_const);
}
if (!decl_context_non_const->containsDecl(copied_decl))
decl_context_non_const->addDeclInternal(copied_decl);
}
}
return;
}
void
ClangASTSource::FindExternalVisibleDecls (NameSearchContext &context)
{
assert (m_ast_context);
ClangASTMetrics::RegisterVisibleQuery();
const ConstString name(context.m_decl_name.getAsString().c_str());
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
static unsigned int invocation_id = 0;
unsigned int current_id = invocation_id++;
if (log)
{
if (!context.m_decl_context)
log->Printf("ClangASTSource::FindExternalVisibleDecls[%u] on (ASTContext*)%p for '%s' in a NULL DeclContext",
current_id, static_cast<void*>(m_ast_context),
name.GetCString());
else if (const NamedDecl *context_named_decl = dyn_cast<NamedDecl>(context.m_decl_context))
log->Printf("ClangASTSource::FindExternalVisibleDecls[%u] on (ASTContext*)%p for '%s' in '%s'",
current_id, static_cast<void*>(m_ast_context),
name.GetCString(),
context_named_decl->getNameAsString().c_str());
else
log->Printf("ClangASTSource::FindExternalVisibleDecls[%u] on (ASTContext*)%p for '%s' in a '%s'",
current_id, static_cast<void*>(m_ast_context),
name.GetCString(),
context.m_decl_context->getDeclKindName());
}
context.m_namespace_map.reset(new ClangASTImporter::NamespaceMap);
if (const NamespaceDecl *namespace_context = dyn_cast<NamespaceDecl>(context.m_decl_context))
{
ClangASTImporter::NamespaceMapSP namespace_map = m_ast_importer->GetNamespaceMap(namespace_context);
if (log && log->GetVerbose())
log->Printf(" CAS::FEVD[%u] Inspecting namespace map %p (%d entries)",
current_id, static_cast<void*>(namespace_map.get()),
static_cast<int>(namespace_map->size()));
if (!namespace_map)
return;
for (ClangASTImporter::NamespaceMap::iterator i = namespace_map->begin(), e = namespace_map->end();
i != e;
++i)
{
if (log)
log->Printf(" CAS::FEVD[%u] Searching namespace %s in module %s",
current_id,
i->second.GetName().AsCString(),
i->first->GetFileSpec().GetFilename().GetCString());
FindExternalVisibleDecls(context,
i->first,
i->second,
current_id);
}
}
else if (isa<ObjCInterfaceDecl>(context.m_decl_context))
{
FindObjCPropertyAndIvarDecls(context);
}
else if (!isa<TranslationUnitDecl>(context.m_decl_context))
{
// we shouldn't be getting FindExternalVisibleDecls calls for these
return;
}
else
{
CompilerDeclContext namespace_decl;
if (log)
log->Printf(" CAS::FEVD[%u] Searching the root namespace", current_id);
FindExternalVisibleDecls(context,
lldb::ModuleSP(),
namespace_decl,
current_id);
}
if (!context.m_namespace_map->empty())
{
if (log && log->GetVerbose())
log->Printf(" CAS::FEVD[%u] Registering namespace map %p (%d entries)",
current_id,
static_cast<void*>(context.m_namespace_map.get()),
static_cast<int>(context.m_namespace_map->size()));
NamespaceDecl *clang_namespace_decl = AddNamespace(context, context.m_namespace_map);
if (clang_namespace_decl)
clang_namespace_decl->setHasExternalVisibleStorage();
}
}
void
ClangASTSource::FindExternalVisibleDecls (NameSearchContext &context,
lldb::ModuleSP module_sp,
CompilerDeclContext &namespace_decl,
unsigned int current_id)
{
assert (m_ast_context);
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
SymbolContextList sc_list;
const ConstString name(context.m_decl_name.getAsString().c_str());
const char *name_unique_cstr = name.GetCString();
static ConstString id_name("id");
static ConstString Class_name("Class");
if (name == id_name || name == Class_name)
return;
if (name_unique_cstr == NULL)
return;
// The ClangASTSource is not responsible for finding $-names.
if (name_unique_cstr[0] == '$')
return;
if (module_sp && namespace_decl)
{
CompilerDeclContext found_namespace_decl;
SymbolVendor *symbol_vendor = module_sp->GetSymbolVendor();
if (symbol_vendor)
{
SymbolContext null_sc;
found_namespace_decl = symbol_vendor->FindNamespace(null_sc, name, &namespace_decl);
if (found_namespace_decl)
{
context.m_namespace_map->push_back(std::pair<lldb::ModuleSP, CompilerDeclContext>(module_sp, found_namespace_decl));
if (log)
log->Printf(" CAS::FEVD[%u] Found namespace %s in module %s",
current_id,
name.GetCString(),
module_sp->GetFileSpec().GetFilename().GetCString());
}
}
}
else
{
const ModuleList &target_images = m_target->GetImages();
Mutex::Locker modules_locker (target_images.GetMutex());
for (size_t i = 0, e = target_images.GetSize(); i < e; ++i)
{
lldb::ModuleSP image = target_images.GetModuleAtIndexUnlocked(i);
if (!image)
continue;
CompilerDeclContext found_namespace_decl;
SymbolVendor *symbol_vendor = image->GetSymbolVendor();
if (!symbol_vendor)
continue;
SymbolContext null_sc;
found_namespace_decl = symbol_vendor->FindNamespace(null_sc, name, &namespace_decl);
if (found_namespace_decl)
{
context.m_namespace_map->push_back(std::pair<lldb::ModuleSP, CompilerDeclContext>(image, found_namespace_decl));
if (log)
log->Printf(" CAS::FEVD[%u] Found namespace %s in module %s",
current_id,
name.GetCString(),
image->GetFileSpec().GetFilename().GetCString());
}
}
}
do
{
TypeList types;
SymbolContext null_sc;
const bool exact_match = false;
if (module_sp && namespace_decl)
module_sp->FindTypesInNamespace(null_sc, name, &namespace_decl, 1, types);
else
m_target->GetImages().FindTypes(null_sc, name, exact_match, 1, types);
bool found_a_type = false;
if (types.GetSize())
{
lldb::TypeSP type_sp = types.GetTypeAtIndex(0);
if (log)
{
const char *name_string = type_sp->GetName().GetCString();
log->Printf(" CAS::FEVD[%u] Matching type found for \"%s\": %s",
current_id,
name.GetCString(),
(name_string ? name_string : "<anonymous>"));
}
CompilerType full_type = type_sp->GetFullCompilerType ();
CompilerType copied_clang_type (GuardedCopyType(full_type));
if (!copied_clang_type)
{
if (log)
log->Printf(" CAS::FEVD[%u] - Couldn't export a type",
current_id);
break;
}
context.AddTypeDecl(copied_clang_type);
found_a_type = true;
}
if (!found_a_type)
{
// Try the modules next.
do
{
if (ClangModulesDeclVendor *modules_decl_vendor = m_target->GetClangModulesDeclVendor())
{
bool append = false;
uint32_t max_matches = 1;
std::vector <clang::NamedDecl *> decls;
if (!modules_decl_vendor->FindDecls(name,
append,
max_matches,
decls))
break;
if (log)
{
log->Printf(" CAS::FEVD[%u] Matching entity found for \"%s\" in the modules",
current_id,
name.GetCString());
}
clang::NamedDecl *const decl_from_modules = decls[0];
if (llvm::isa<clang::TypeDecl>(decl_from_modules) ||
llvm::isa<clang::ObjCContainerDecl>(decl_from_modules) ||
llvm::isa<clang::EnumConstantDecl>(decl_from_modules))
{
clang::Decl *copied_decl = m_ast_importer->CopyDecl(m_ast_context, &decl_from_modules->getASTContext(), decl_from_modules);
clang::NamedDecl *copied_named_decl = copied_decl ? dyn_cast<clang::NamedDecl>(copied_decl) : nullptr;
if (!copied_named_decl)
{
if (log)
log->Printf(" CAS::FEVD[%u] - Couldn't export a type from the modules",
current_id);
break;
}
context.AddNamedDecl(copied_named_decl);
found_a_type = true;
}
}
} while (0);
}
if (!found_a_type)
{
do
{
// Couldn't find any types elsewhere. Try the Objective-C runtime if one exists.
lldb::ProcessSP process(m_target->GetProcessSP());
if (!process)
break;
ObjCLanguageRuntime *language_runtime(process->GetObjCLanguageRuntime());
if (!language_runtime)
break;
DeclVendor *decl_vendor = language_runtime->GetDeclVendor();
if (!decl_vendor)
break;
bool append = false;
uint32_t max_matches = 1;
std::vector <clang::NamedDecl *> decls;
if (!decl_vendor->FindDecls(name,
append,
max_matches,
decls))
break;
if (log)
{
log->Printf(" CAS::FEVD[%u] Matching type found for \"%s\" in the runtime",
current_id,
name.GetCString());
}
clang::Decl *copied_decl = m_ast_importer->CopyDecl(m_ast_context, &decls[0]->getASTContext(), decls[0]);
clang::NamedDecl *copied_named_decl = copied_decl ? dyn_cast<clang::NamedDecl>(copied_decl) : nullptr;
if (!copied_named_decl)
{
if (log)
log->Printf(" CAS::FEVD[%u] - Couldn't export a type from the runtime",
current_id);
break;
}
context.AddNamedDecl(copied_named_decl);
}
while(0);
}
} while(0);
}
template <class D> class TaggedASTDecl {
public:
TaggedASTDecl() : decl(NULL) { }
TaggedASTDecl(D *_decl) : decl(_decl) { }
bool IsValid() const { return (decl != NULL); }
bool IsInvalid() const { return !IsValid(); }
D *operator->() const { return decl; }
D *decl;
};
template <class D2, template <class D> class TD, class D1>
TD<D2>
DynCast(TD<D1> source)
{
return TD<D2> (dyn_cast<D2>(source.decl));
}
template <class D = Decl> class DeclFromParser;
template <class D = Decl> class DeclFromUser;
template <class D> class DeclFromParser : public TaggedASTDecl<D> {
public:
DeclFromParser() : TaggedASTDecl<D>() { }
DeclFromParser(D *_decl) : TaggedASTDecl<D>(_decl) { }
DeclFromUser<D> GetOrigin(ClangASTImporter *importer);
};
template <class D> class DeclFromUser : public TaggedASTDecl<D> {
public:
DeclFromUser() : TaggedASTDecl<D>() { }
DeclFromUser(D *_decl) : TaggedASTDecl<D>(_decl) { }
DeclFromParser<D> Import(ClangASTImporter *importer, ASTContext &dest_ctx);
};
template <class D>
DeclFromUser<D>
DeclFromParser<D>::GetOrigin(ClangASTImporter *importer)
{
DeclFromUser <> origin_decl;
importer->ResolveDeclOrigin(this->decl, &origin_decl.decl, NULL);
if (origin_decl.IsInvalid())
return DeclFromUser<D>();
return DeclFromUser<D>(dyn_cast<D>(origin_decl.decl));
}
template <class D>
DeclFromParser<D>
DeclFromUser<D>::Import(ClangASTImporter *importer, ASTContext &dest_ctx)
{
DeclFromParser <> parser_generic_decl(importer->CopyDecl(&dest_ctx, &this->decl->getASTContext(), this->decl));
if (parser_generic_decl.IsInvalid())
return DeclFromParser<D>();
return DeclFromParser<D>(dyn_cast<D>(parser_generic_decl.decl));
}
static bool
FindObjCMethodDeclsWithOrigin (unsigned int current_id,
NameSearchContext &context,
ObjCInterfaceDecl *original_interface_decl,
clang::ASTContext *ast_context,
ClangASTImporter *ast_importer,
const char *log_info)
{
const DeclarationName &decl_name(context.m_decl_name);
clang::ASTContext *original_ctx = &original_interface_decl->getASTContext();
Selector original_selector;
if (decl_name.isObjCZeroArgSelector())
{
IdentifierInfo *ident = &original_ctx->Idents.get(decl_name.getAsString());
original_selector = original_ctx->Selectors.getSelector(0, &ident);
}
else if (decl_name.isObjCOneArgSelector())
{
const std::string &decl_name_string = decl_name.getAsString();
std::string decl_name_string_without_colon(decl_name_string.c_str(), decl_name_string.length() - 1);
IdentifierInfo *ident = &original_ctx->Idents.get(decl_name_string_without_colon.c_str());
original_selector = original_ctx->Selectors.getSelector(1, &ident);
}
else
{
SmallVector<IdentifierInfo *, 4> idents;
clang::Selector sel = decl_name.getObjCSelector();
unsigned num_args = sel.getNumArgs();
for (unsigned i = 0;
i != num_args;
++i)
{
idents.push_back(&original_ctx->Idents.get(sel.getNameForSlot(i)));
}
original_selector = original_ctx->Selectors.getSelector(num_args, idents.data());
}
DeclarationName original_decl_name(original_selector);
llvm::SmallVector<NamedDecl *, 1> methods;
ClangASTContext::GetCompleteDecl(original_ctx, original_interface_decl);
if (ObjCMethodDecl *instance_method_decl = original_interface_decl->lookupInstanceMethod(original_selector))
{
methods.push_back(instance_method_decl);
}
else if (ObjCMethodDecl *class_method_decl = original_interface_decl->lookupClassMethod(original_selector))
{
methods.push_back(class_method_decl);
}
if (methods.empty())
{
return false;
}
for (NamedDecl *named_decl : methods)
{
if (!named_decl)
continue;
ObjCMethodDecl *result_method = dyn_cast<ObjCMethodDecl>(named_decl);
if (!result_method)
continue;
Decl *copied_decl = ast_importer->CopyDecl(ast_context, &result_method->getASTContext(), result_method);
if (!copied_decl)
continue;
ObjCMethodDecl *copied_method_decl = dyn_cast<ObjCMethodDecl>(copied_decl);
if (!copied_method_decl)
continue;
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
if (log)
{
ASTDumper dumper((Decl*)copied_method_decl);
log->Printf(" CAS::FOMD[%d] found (%s) %s", current_id, log_info, dumper.GetCString());
}
context.AddNamedDecl(copied_method_decl);
}
return true;
}
void
ClangASTSource::FindObjCMethodDecls (NameSearchContext &context)
{
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
static unsigned int invocation_id = 0;
unsigned int current_id = invocation_id++;
const DeclarationName &decl_name(context.m_decl_name);
const DeclContext *decl_ctx(context.m_decl_context);
const ObjCInterfaceDecl *interface_decl = dyn_cast<ObjCInterfaceDecl>(decl_ctx);
if (!interface_decl)
return;
do
{
Decl *original_decl = NULL;
ASTContext *original_ctx = NULL;
m_ast_importer->ResolveDeclOrigin(interface_decl, &original_decl, &original_ctx);
if (!original_decl)
break;
ObjCInterfaceDecl *original_interface_decl = dyn_cast<ObjCInterfaceDecl>(original_decl);
if (FindObjCMethodDeclsWithOrigin(current_id,
context,
original_interface_decl,
m_ast_context,
m_ast_importer,
"at origin"))
return; // found it, no need to look any further
} while (0);
StreamString ss;
if (decl_name.isObjCZeroArgSelector())
{
ss.Printf("%s", decl_name.getAsString().c_str());
}
else if (decl_name.isObjCOneArgSelector())
{
ss.Printf("%s", decl_name.getAsString().c_str());
}
else
{
clang::Selector sel = decl_name.getObjCSelector();
for (unsigned i = 0, e = sel.getNumArgs();
i != e;
++i)
{
llvm::StringRef r = sel.getNameForSlot(i);
ss.Printf("%s:", r.str().c_str());
}
}
ss.Flush();
if (strstr(ss.GetData(), "$__lldb"))
return; // we don't need any results
ConstString selector_name(ss.GetData());
if (log)
log->Printf("ClangASTSource::FindObjCMethodDecls[%d] on (ASTContext*)%p for selector [%s %s]",
current_id, static_cast<void*>(m_ast_context),
interface_decl->getNameAsString().c_str(),
selector_name.AsCString());
SymbolContextList sc_list;
const bool include_symbols = false;
const bool include_inlines = false;
const bool append = false;
std::string interface_name = interface_decl->getNameAsString();
do
{
StreamString ms;
ms.Printf("-[%s %s]", interface_name.c_str(), selector_name.AsCString());
ms.Flush();
ConstString instance_method_name(ms.GetData());
m_target->GetImages().FindFunctions(instance_method_name, lldb::eFunctionNameTypeFull, include_symbols, include_inlines, append, sc_list);
if (sc_list.GetSize())
break;
ms.Clear();
ms.Printf("+[%s %s]", interface_name.c_str(), selector_name.AsCString());
ms.Flush();
ConstString class_method_name(ms.GetData());
m_target->GetImages().FindFunctions(class_method_name, lldb::eFunctionNameTypeFull, include_symbols, include_inlines, append, sc_list);
if (sc_list.GetSize())
break;
// Fall back and check for methods in categories. If we find methods this way, we need to check that they're actually in
// categories on the desired class.
SymbolContextList candidate_sc_list;
m_target->GetImages().FindFunctions(selector_name, lldb::eFunctionNameTypeSelector, include_symbols, include_inlines, append, candidate_sc_list);
for (uint32_t ci = 0, ce = candidate_sc_list.GetSize();
ci != ce;
++ci)
{
SymbolContext candidate_sc;
if (!candidate_sc_list.GetContextAtIndex(ci, candidate_sc))
continue;
if (!candidate_sc.function)
continue;
const char *candidate_name = candidate_sc.function->GetName().AsCString();
const char *cursor = candidate_name;
if (*cursor != '+' && *cursor != '-')
continue;
++cursor;
if (*cursor != '[')
continue;
++cursor;
size_t interface_len = interface_name.length();
if (strncmp(cursor, interface_name.c_str(), interface_len))
continue;
cursor += interface_len;
if (*cursor == ' ' || *cursor == '(')
sc_list.Append(candidate_sc);
}
}
while (0);
if (sc_list.GetSize())
{
// We found a good function symbol. Use that.
for (uint32_t i = 0, e = sc_list.GetSize();
i != e;
++i)
{
SymbolContext sc;
if (!sc_list.GetContextAtIndex(i, sc))
continue;
if (!sc.function)
continue;
CompilerDeclContext function_decl_ctx = sc.function->GetDeclContext();
if (!function_decl_ctx)
continue;
ObjCMethodDecl *method_decl = ClangASTContext::DeclContextGetAsObjCMethodDecl(function_decl_ctx);
if (!method_decl)
continue;
ObjCInterfaceDecl *found_interface_decl = method_decl->getClassInterface();
if (!found_interface_decl)
continue;
if (found_interface_decl->getName() == interface_decl->getName())
{
Decl *copied_decl = m_ast_importer->CopyDecl(m_ast_context, &method_decl->getASTContext(), method_decl);
if (!copied_decl)
continue;
ObjCMethodDecl *copied_method_decl = dyn_cast<ObjCMethodDecl>(copied_decl);
if (!copied_method_decl)
continue;
if (log)
{
ASTDumper dumper((Decl*)copied_method_decl);
log->Printf(" CAS::FOMD[%d] found (in symbols) %s", current_id, dumper.GetCString());
}
context.AddNamedDecl(copied_method_decl);
}
}
return;
}
// Try the debug information.
do
{
ObjCInterfaceDecl *complete_interface_decl = GetCompleteObjCInterface(const_cast<ObjCInterfaceDecl*>(interface_decl));
if (!complete_interface_decl)
break;
// We found the complete interface. The runtime never needs to be queried in this scenario.
DeclFromUser<const ObjCInterfaceDecl> complete_iface_decl(complete_interface_decl);
if (complete_interface_decl == interface_decl)
break; // already checked this one
if (log)
log->Printf("CAS::FOPD[%d] trying origin (ObjCInterfaceDecl*)%p/(ASTContext*)%p...",
current_id, static_cast<void*>(complete_interface_decl),
static_cast<void*>(&complete_iface_decl->getASTContext()));
FindObjCMethodDeclsWithOrigin(current_id,
context,
complete_interface_decl,
m_ast_context,
m_ast_importer,
"in debug info");
return;
}
while (0);
do
{
// Check the modules only if the debug information didn't have a complete interface.
if (ClangModulesDeclVendor *modules_decl_vendor = m_target->GetClangModulesDeclVendor())
{
ConstString interface_name(interface_decl->getNameAsString().c_str());
bool append = false;
uint32_t max_matches = 1;
std::vector <clang::NamedDecl *> decls;
if (!modules_decl_vendor->FindDecls(interface_name,
append,
max_matches,
decls))
break;
ObjCInterfaceDecl *interface_decl_from_modules = dyn_cast<ObjCInterfaceDecl>(decls[0]);
if (!interface_decl_from_modules)
break;
if (FindObjCMethodDeclsWithOrigin(current_id,
context,
interface_decl_from_modules,
m_ast_context,
m_ast_importer,
"in modules"))
return;
}
}
while (0);
do
{
// Check the runtime only if the debug information didn't have a complete interface and the modules don't get us anywhere.
lldb::ProcessSP process(m_target->GetProcessSP());
if (!process)
break;
ObjCLanguageRuntime *language_runtime(process->GetObjCLanguageRuntime());
if (!language_runtime)
break;
DeclVendor *decl_vendor = language_runtime->GetDeclVendor();
if (!decl_vendor)
break;
ConstString interface_name(interface_decl->getNameAsString().c_str());
bool append = false;
uint32_t max_matches = 1;
std::vector <clang::NamedDecl *> decls;
if (!decl_vendor->FindDecls(interface_name,
append,
max_matches,
decls))
break;
ObjCInterfaceDecl *runtime_interface_decl = dyn_cast<ObjCInterfaceDecl>(decls[0]);
if (!runtime_interface_decl)
break;
FindObjCMethodDeclsWithOrigin(current_id,
context,
runtime_interface_decl,
m_ast_context,
m_ast_importer,
"in runtime");
}
while(0);
}
static bool
FindObjCPropertyAndIvarDeclsWithOrigin (unsigned int current_id,
NameSearchContext &context,
clang::ASTContext &ast_context,
ClangASTImporter *ast_importer,
DeclFromUser<const ObjCInterfaceDecl> &origin_iface_decl)
{
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
if (origin_iface_decl.IsInvalid())
return false;
std::string name_str = context.m_decl_name.getAsString();
StringRef name(name_str.c_str());
IdentifierInfo &name_identifier(origin_iface_decl->getASTContext().Idents.get(name));
DeclFromUser<ObjCPropertyDecl> origin_property_decl(origin_iface_decl->FindPropertyDeclaration(&name_identifier));
bool found = false;
if (origin_property_decl.IsValid())
{
DeclFromParser<ObjCPropertyDecl> parser_property_decl(origin_property_decl.Import(ast_importer, ast_context));
if (parser_property_decl.IsValid())
{
if (log)
{
ASTDumper dumper((Decl*)parser_property_decl.decl);
log->Printf(" CAS::FOPD[%d] found %s", current_id, dumper.GetCString());
}
context.AddNamedDecl(parser_property_decl.decl);
found = true;
}
}
DeclFromUser<ObjCIvarDecl> origin_ivar_decl(origin_iface_decl->getIvarDecl(&name_identifier));
if (origin_ivar_decl.IsValid())
{
DeclFromParser<ObjCIvarDecl> parser_ivar_decl(origin_ivar_decl.Import(ast_importer, ast_context));
if (parser_ivar_decl.IsValid())
{
if (log)
{
ASTDumper dumper((Decl*)parser_ivar_decl.decl);
log->Printf(" CAS::FOPD[%d] found %s", current_id, dumper.GetCString());
}
context.AddNamedDecl(parser_ivar_decl.decl);
found = true;
}
}
return found;
}
void
ClangASTSource::FindObjCPropertyAndIvarDecls (NameSearchContext &context)
{
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
static unsigned int invocation_id = 0;
unsigned int current_id = invocation_id++;
DeclFromParser<const ObjCInterfaceDecl> parser_iface_decl(cast<ObjCInterfaceDecl>(context.m_decl_context));
DeclFromUser<const ObjCInterfaceDecl> origin_iface_decl(parser_iface_decl.GetOrigin(m_ast_importer));
ConstString class_name(parser_iface_decl->getNameAsString().c_str());
if (log)
log->Printf("ClangASTSource::FindObjCPropertyAndIvarDecls[%d] on (ASTContext*)%p for '%s.%s'",
current_id, static_cast<void*>(m_ast_context),
parser_iface_decl->getNameAsString().c_str(),
context.m_decl_name.getAsString().c_str());
if (FindObjCPropertyAndIvarDeclsWithOrigin(current_id,
context,
*m_ast_context,
m_ast_importer,
origin_iface_decl))
return;
if (log)
log->Printf("CAS::FOPD[%d] couldn't find the property on origin (ObjCInterfaceDecl*)%p/(ASTContext*)%p, searching elsewhere...",
current_id, static_cast<const void*>(origin_iface_decl.decl),
static_cast<void*>(&origin_iface_decl->getASTContext()));
SymbolContext null_sc;
TypeList type_list;
do
{
ObjCInterfaceDecl *complete_interface_decl = GetCompleteObjCInterface(const_cast<ObjCInterfaceDecl*>(parser_iface_decl.decl));
if (!complete_interface_decl)
break;
// We found the complete interface. The runtime never needs to be queried in this scenario.
DeclFromUser<const ObjCInterfaceDecl> complete_iface_decl(complete_interface_decl);
if (complete_iface_decl.decl == origin_iface_decl.decl)
break; // already checked this one
if (log)
log->Printf("CAS::FOPD[%d] trying origin (ObjCInterfaceDecl*)%p/(ASTContext*)%p...",
current_id,
static_cast<const void*>(complete_iface_decl.decl),
static_cast<void*>(&complete_iface_decl->getASTContext()));
FindObjCPropertyAndIvarDeclsWithOrigin(current_id,
context,
*m_ast_context,
m_ast_importer,
complete_iface_decl);
return;
}
while(0);
do
{
// Check the modules only if the debug information didn't have a complete interface.
ClangModulesDeclVendor *modules_decl_vendor = m_target->GetClangModulesDeclVendor();
if (!modules_decl_vendor)
break;
bool append = false;
uint32_t max_matches = 1;
std::vector <clang::NamedDecl *> decls;
if (!modules_decl_vendor->FindDecls(class_name,
append,
max_matches,
decls))
break;
DeclFromUser<const ObjCInterfaceDecl> interface_decl_from_modules(dyn_cast<ObjCInterfaceDecl>(decls[0]));
if (!interface_decl_from_modules.IsValid())
break;
if (log)
log->Printf("CAS::FOPD[%d] trying module (ObjCInterfaceDecl*)%p/(ASTContext*)%p...",
current_id,
static_cast<const void*>(interface_decl_from_modules.decl),
static_cast<void*>(&interface_decl_from_modules->getASTContext()));
if (FindObjCPropertyAndIvarDeclsWithOrigin(current_id,
context,
*m_ast_context,
m_ast_importer,
interface_decl_from_modules))
return;
}
while(0);
do
{
// Check the runtime only if the debug information didn't have a complete interface
// and nothing was in the modules.
lldb::ProcessSP process(m_target->GetProcessSP());
if (!process)
return;
ObjCLanguageRuntime *language_runtime(process->GetObjCLanguageRuntime());
if (!language_runtime)
return;
DeclVendor *decl_vendor = language_runtime->GetDeclVendor();
if (!decl_vendor)
break;
bool append = false;
uint32_t max_matches = 1;
std::vector <clang::NamedDecl *> decls;
if (!decl_vendor->FindDecls(class_name,
append,
max_matches,
decls))
break;
DeclFromUser<const ObjCInterfaceDecl> interface_decl_from_runtime(dyn_cast<ObjCInterfaceDecl>(decls[0]));
if (!interface_decl_from_runtime.IsValid())
break;
if (log)
log->Printf("CAS::FOPD[%d] trying runtime (ObjCInterfaceDecl*)%p/(ASTContext*)%p...",
current_id,
static_cast<const void*>(interface_decl_from_runtime.decl),
static_cast<void*>(&interface_decl_from_runtime->getASTContext()));
if (FindObjCPropertyAndIvarDeclsWithOrigin(current_id,
context,
*m_ast_context,
m_ast_importer,
interface_decl_from_runtime))
return;
}
while(0);
}
typedef llvm::DenseMap<const FieldDecl *, uint64_t> FieldOffsetMap;
typedef llvm::DenseMap<const CXXRecordDecl *, CharUnits> BaseOffsetMap;
template <class D, class O>
static bool
ImportOffsetMap(llvm::DenseMap<const D *, O> &destination_map, llvm::DenseMap<const D *, O> &source_map,
ClangASTImporter *importer, ASTContext &dest_ctx)
{
// When importing fields into a new record, clang has a hard requirement that
// fields be imported in field offset order. Since they are stored in a DenseMap
// with a pointer as the key type, this means we cannot simply iterate over the
// map, as the order will be non-deterministic. Instead we have to sort by the offset
// and then insert in sorted order.
typedef llvm::DenseMap<const D *, O> MapType;
typedef typename MapType::value_type PairType;
std::vector<PairType> sorted_items;
sorted_items.reserve(source_map.size());
sorted_items.assign(source_map.begin(), source_map.end());
std::sort(sorted_items.begin(), sorted_items.end(),
[](const PairType &lhs, const PairType &rhs)
{
return lhs.second < rhs.second;
});
for (const auto &item : sorted_items)
{
DeclFromUser<D> user_decl(const_cast<D *>(item.first));
DeclFromParser <D> parser_decl(user_decl.Import(importer, dest_ctx));
if (parser_decl.IsInvalid())
return false;
destination_map.insert(std::pair<const D *, O>(parser_decl.decl, item.second));
}
return true;
}
template <bool IsVirtual>
bool
ExtractBaseOffsets(const ASTRecordLayout &record_layout, DeclFromUser<const CXXRecordDecl> &record,
BaseOffsetMap &base_offsets)
{
for (CXXRecordDecl::base_class_const_iterator bi = (IsVirtual ? record->vbases_begin() : record->bases_begin()),
be = (IsVirtual ? record->vbases_end() : record->bases_end());
bi != be; ++bi)
{
if (!IsVirtual && bi->isVirtual())
continue;
const clang::Type *origin_base_type = bi->getType().getTypePtr();
const clang::RecordType *origin_base_record_type = origin_base_type->getAs<RecordType>();
if (!origin_base_record_type)
return false;
DeclFromUser <RecordDecl> origin_base_record(origin_base_record_type->getDecl());
if (origin_base_record.IsInvalid())
return false;
DeclFromUser <CXXRecordDecl> origin_base_cxx_record(DynCast<CXXRecordDecl>(origin_base_record));
if (origin_base_cxx_record.IsInvalid())
return false;
CharUnits base_offset;
if (IsVirtual)
base_offset = record_layout.getVBaseClassOffset(origin_base_cxx_record.decl);
else
base_offset = record_layout.getBaseClassOffset(origin_base_cxx_record.decl);
base_offsets.insert(std::pair<const CXXRecordDecl *, CharUnits>(origin_base_cxx_record.decl, base_offset));
}
return true;
}
bool
ClangASTSource::layoutRecordType(const RecordDecl *record, uint64_t &size, uint64_t &alignment,
FieldOffsetMap &field_offsets, BaseOffsetMap &base_offsets,
BaseOffsetMap &virtual_base_offsets)
{
ClangASTMetrics::RegisterRecordLayout();
static unsigned int invocation_id = 0;
unsigned int current_id = invocation_id++;
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
if (log)
log->Printf("LayoutRecordType[%u] on (ASTContext*)%p for (RecordDecl*)%p [name = '%s']",
current_id, static_cast<void*>(m_ast_context),
static_cast<const void*>(record),
record->getNameAsString().c_str());
DeclFromParser <const RecordDecl> parser_record(record);
DeclFromUser <const RecordDecl> origin_record(parser_record.GetOrigin(m_ast_importer));
if (origin_record.IsInvalid())
return false;
FieldOffsetMap origin_field_offsets;
BaseOffsetMap origin_base_offsets;
BaseOffsetMap origin_virtual_base_offsets;
ClangASTContext::GetCompleteDecl(&origin_record->getASTContext(), const_cast<RecordDecl*>(origin_record.decl));
if (!origin_record.decl->getDefinition())
return false;
const ASTRecordLayout &record_layout(origin_record->getASTContext().getASTRecordLayout(origin_record.decl));
int field_idx = 0, field_count = record_layout.getFieldCount();
for (RecordDecl::field_iterator fi = origin_record->field_begin(), fe = origin_record->field_end(); fi != fe; ++fi)
{
if (field_idx >= field_count)
return false; // Layout didn't go well. Bail out.
uint64_t field_offset = record_layout.getFieldOffset(field_idx);
origin_field_offsets.insert(std::pair<const FieldDecl *, uint64_t>(*fi, field_offset));
field_idx++;
}
ASTContext &parser_ast_context(record->getASTContext());
DeclFromUser <const CXXRecordDecl> origin_cxx_record(DynCast<const CXXRecordDecl>(origin_record));
if (origin_cxx_record.IsValid())
{
if (!ExtractBaseOffsets<false>(record_layout, origin_cxx_record, origin_base_offsets) ||
!ExtractBaseOffsets<true>(record_layout, origin_cxx_record, origin_virtual_base_offsets))
return false;
}
if (!ImportOffsetMap(field_offsets, origin_field_offsets, m_ast_importer, parser_ast_context) ||
!ImportOffsetMap(base_offsets, origin_base_offsets, m_ast_importer, parser_ast_context) ||
!ImportOffsetMap(virtual_base_offsets, origin_virtual_base_offsets, m_ast_importer, parser_ast_context))
return false;
size = record_layout.getSize().getQuantity() * m_ast_context->getCharWidth();
alignment = record_layout.getAlignment().getQuantity() * m_ast_context->getCharWidth();
if (log)
{
log->Printf("LRT[%u] returned:", current_id);
log->Printf("LRT[%u] Original = (RecordDecl*)%p", current_id,
static_cast<const void*>(origin_record.decl));
log->Printf("LRT[%u] Size = %" PRId64, current_id, size);
log->Printf("LRT[%u] Alignment = %" PRId64, current_id, alignment);
log->Printf("LRT[%u] Fields:", current_id);
for (RecordDecl::field_iterator fi = record->field_begin(), fe = record->field_end();
fi != fe;
++fi)
{
log->Printf("LRT[%u] (FieldDecl*)%p, Name = '%s', Offset = %" PRId64 " bits", current_id,
static_cast<void *>(*fi), fi->getNameAsString().c_str(), field_offsets[*fi]);
}
DeclFromParser <const CXXRecordDecl> parser_cxx_record = DynCast<const CXXRecordDecl>(parser_record);
if (parser_cxx_record.IsValid())
{
log->Printf("LRT[%u] Bases:", current_id);
for (CXXRecordDecl::base_class_const_iterator bi = parser_cxx_record->bases_begin(), be = parser_cxx_record->bases_end();
bi != be;
++bi)
{
bool is_virtual = bi->isVirtual();
QualType base_type = bi->getType();
const RecordType *base_record_type = base_type->getAs<RecordType>();
DeclFromParser <RecordDecl> base_record(base_record_type->getDecl());
DeclFromParser <CXXRecordDecl> base_cxx_record = DynCast<CXXRecordDecl>(base_record);
log->Printf("LRT[%u] %s(CXXRecordDecl*)%p, Name = '%s', Offset = %" PRId64 " chars", current_id,
(is_virtual ? "Virtual " : ""), static_cast<void *>(base_cxx_record.decl),
base_cxx_record.decl->getNameAsString().c_str(),
(is_virtual ? virtual_base_offsets[base_cxx_record.decl].getQuantity()
: base_offsets[base_cxx_record.decl].getQuantity()));
}
}
else
{
log->Printf("LRD[%u] Not a CXXRecord, so no bases", current_id);
}
}
return true;
}
void
ClangASTSource::CompleteNamespaceMap (ClangASTImporter::NamespaceMapSP &namespace_map,
const ConstString &name,
ClangASTImporter::NamespaceMapSP &parent_map) const
{
static unsigned int invocation_id = 0;
unsigned int current_id = invocation_id++;
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
if (log)
{
if (parent_map && parent_map->size())
log->Printf("CompleteNamespaceMap[%u] on (ASTContext*)%p Searching for namespace %s in namespace %s",
current_id, static_cast<void*>(m_ast_context),
name.GetCString(),
parent_map->begin()->second.GetName().AsCString());
else
log->Printf("CompleteNamespaceMap[%u] on (ASTContext*)%p Searching for namespace %s",
current_id, static_cast<void*>(m_ast_context),
name.GetCString());
}
if (parent_map)
{
for (ClangASTImporter::NamespaceMap::iterator i = parent_map->begin(), e = parent_map->end();
i != e;
++i)
{
CompilerDeclContext found_namespace_decl;
lldb::ModuleSP module_sp = i->first;
CompilerDeclContext module_parent_namespace_decl = i->second;
SymbolVendor *symbol_vendor = module_sp->GetSymbolVendor();
if (!symbol_vendor)
continue;
SymbolContext null_sc;
found_namespace_decl = symbol_vendor->FindNamespace(null_sc, name, &module_parent_namespace_decl);
if (!found_namespace_decl)
continue;
namespace_map->push_back(std::pair<lldb::ModuleSP, CompilerDeclContext>(module_sp, found_namespace_decl));
if (log)
log->Printf(" CMN[%u] Found namespace %s in module %s",
current_id,
name.GetCString(),
module_sp->GetFileSpec().GetFilename().GetCString());
}
}
else
{
const ModuleList &target_images = m_target->GetImages();
Mutex::Locker modules_locker(target_images.GetMutex());
CompilerDeclContext null_namespace_decl;
for (size_t i = 0, e = target_images.GetSize(); i < e; ++i)
{
lldb::ModuleSP image = target_images.GetModuleAtIndexUnlocked(i);
if (!image)
continue;
CompilerDeclContext found_namespace_decl;
SymbolVendor *symbol_vendor = image->GetSymbolVendor();
if (!symbol_vendor)
continue;
SymbolContext null_sc;
found_namespace_decl = symbol_vendor->FindNamespace(null_sc, name, &null_namespace_decl);
if (!found_namespace_decl)
continue;
namespace_map->push_back(std::pair<lldb::ModuleSP, CompilerDeclContext>(image, found_namespace_decl));
if (log)
log->Printf(" CMN[%u] Found namespace %s in module %s",
current_id,
name.GetCString(),
image->GetFileSpec().GetFilename().GetCString());
}
}
}
NamespaceDecl *
ClangASTSource::AddNamespace (NameSearchContext &context, ClangASTImporter::NamespaceMapSP &namespace_decls)
{
if (!namespace_decls)
return nullptr;
const CompilerDeclContext &namespace_decl = namespace_decls->begin()->second;
clang::ASTContext *src_ast = ClangASTContext::DeclContextGetClangASTContext(namespace_decl);
if (!src_ast)
return nullptr;
clang::NamespaceDecl *src_namespace_decl = ClangASTContext::DeclContextGetAsNamespaceDecl(namespace_decl);
if (!src_namespace_decl)
return nullptr;
Decl *copied_decl = m_ast_importer->CopyDecl(m_ast_context, src_ast, src_namespace_decl);
if (!copied_decl)
return nullptr;
NamespaceDecl *copied_namespace_decl = dyn_cast<NamespaceDecl>(copied_decl);
if (!copied_namespace_decl)
return nullptr;
context.m_decls.push_back(copied_namespace_decl);
m_ast_importer->RegisterNamespaceMap(copied_namespace_decl, namespace_decls);
return dyn_cast<NamespaceDecl>(copied_decl);
}
CompilerType
ClangASTSource::GuardedCopyType (const CompilerType &src_type)
{
ClangASTMetrics::RegisterLLDBImport();
ClangASTContext* src_ast = src_type.GetTypeSystem()->AsClangASTContext();
if (!src_ast)
return CompilerType();
SetImportInProgress(true);
QualType copied_qual_type = m_ast_importer->CopyType (m_ast_context, src_ast->getASTContext(), ClangASTContext::GetQualType(src_type));
SetImportInProgress(false);
if (copied_qual_type.getAsOpaquePtr() && copied_qual_type->getCanonicalTypeInternal().isNull())
// this shouldn't happen, but we're hardening because the AST importer seems to be generating bad types
// on occasion.
return CompilerType();
return CompilerType(m_ast_context, copied_qual_type);
}
clang::NamedDecl *
NameSearchContext::AddVarDecl(const CompilerType &type)
{
assert (type && "Type for variable must be valid!");
if (!type.IsValid())
return NULL;
ClangASTContext* lldb_ast = type.GetTypeSystem()->AsClangASTContext();
if (!lldb_ast)
return NULL;
IdentifierInfo *ii = m_decl_name.getAsIdentifierInfo();
clang::ASTContext *ast = lldb_ast->getASTContext();
clang::NamedDecl *Decl = VarDecl::Create(*ast,
const_cast<DeclContext*>(m_decl_context),
SourceLocation(),
SourceLocation(),
ii,
ClangASTContext::GetQualType(type),
0,
SC_Static);
m_decls.push_back(Decl);
return Decl;
}
clang::NamedDecl *
NameSearchContext::AddFunDecl (const CompilerType &type, bool extern_c)
{
assert (type && "Type for variable must be valid!");
if (!type.IsValid())
return NULL;
if (m_function_types.count(type))
return NULL;
ClangASTContext* lldb_ast = type.GetTypeSystem()->AsClangASTContext();
if (!lldb_ast)
return NULL;
m_function_types.insert(type);
QualType qual_type (ClangASTContext::GetQualType(type));
clang::ASTContext *ast = lldb_ast->getASTContext();
const bool isInlineSpecified = false;
const bool hasWrittenPrototype = true;
const bool isConstexprSpecified = false;
clang::DeclContext *context = const_cast<DeclContext*>(m_decl_context);
if (extern_c) {
context = LinkageSpecDecl::Create(*ast,
context,
SourceLocation(),
SourceLocation(),
clang::LinkageSpecDecl::LanguageIDs::lang_c,
false);
}
// Pass the identifier info for functions the decl_name is needed for operators
clang::DeclarationName decl_name = m_decl_name.getNameKind() == DeclarationName::Identifier ? m_decl_name.getAsIdentifierInfo() : m_decl_name;
clang::FunctionDecl *func_decl = FunctionDecl::Create (*ast,
context,
SourceLocation(),
SourceLocation(),
decl_name,
qual_type,
NULL,
SC_Extern,
isInlineSpecified,
hasWrittenPrototype,
isConstexprSpecified);
// We have to do more than just synthesize the FunctionDecl. We have to
// synthesize ParmVarDecls for all of the FunctionDecl's arguments. To do
// this, we raid the function's FunctionProtoType for types.
const FunctionProtoType *func_proto_type = qual_type.getTypePtr()->getAs<FunctionProtoType>();
if (func_proto_type)
{
unsigned NumArgs = func_proto_type->getNumParams();
unsigned ArgIndex;
SmallVector<ParmVarDecl *, 5> parm_var_decls;
for (ArgIndex = 0; ArgIndex < NumArgs; ++ArgIndex)
{
QualType arg_qual_type (func_proto_type->getParamType(ArgIndex));
parm_var_decls.push_back(ParmVarDecl::Create (*ast,
const_cast<DeclContext*>(context),
SourceLocation(),
SourceLocation(),
NULL,
arg_qual_type,
NULL,
SC_Static,
NULL));
}
func_decl->setParams(ArrayRef<ParmVarDecl*>(parm_var_decls));
}
else
{
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
if (log)
log->Printf("Function type wasn't a FunctionProtoType");
}
m_decls.push_back(func_decl);
return func_decl;
}
clang::NamedDecl *
NameSearchContext::AddGenericFunDecl()
{
FunctionProtoType::ExtProtoInfo proto_info;
proto_info.Variadic = true;
QualType generic_function_type(m_ast_source.m_ast_context->getFunctionType (m_ast_source.m_ast_context->UnknownAnyTy, // result
ArrayRef<QualType>(), // argument types
proto_info));
return AddFunDecl(CompilerType (m_ast_source.m_ast_context, generic_function_type), true);
}
clang::NamedDecl *
NameSearchContext::AddTypeDecl(const CompilerType &clang_type)
{
if (clang_type)
{
QualType qual_type = ClangASTContext::GetQualType(clang_type);
if (const TypedefType *typedef_type = llvm::dyn_cast<TypedefType>(qual_type))
{
TypedefNameDecl *typedef_name_decl = typedef_type->getDecl();
m_decls.push_back(typedef_name_decl);
return (NamedDecl*)typedef_name_decl;
}
else if (const TagType *tag_type = qual_type->getAs<TagType>())
{
TagDecl *tag_decl = tag_type->getDecl();
m_decls.push_back(tag_decl);
return tag_decl;
}
else if (const ObjCObjectType *objc_object_type = qual_type->getAs<ObjCObjectType>())
{
ObjCInterfaceDecl *interface_decl = objc_object_type->getInterface();
m_decls.push_back((NamedDecl*)interface_decl);
return (NamedDecl*)interface_decl;
}
}
return NULL;
}
void
NameSearchContext::AddLookupResult (clang::DeclContextLookupResult result)
{
for (clang::NamedDecl *decl : result)
m_decls.push_back (decl);
}
void
NameSearchContext::AddNamedDecl (clang::NamedDecl *decl)
{
m_decls.push_back (decl);
}