Files
clang-p2996/lldb/source/Expression/ClangASTSource.cpp
Sean Callanan 2cb5e527f6 Fixed a problem where persistent variables did
not correctly store the contents of Objective-C
classes.  This was due to a combination of
factors:

  1) Types were only being completed if we were
     looking inside them for specific ivars
     (using FindExternalVisibleDeclsByName). 
     We now look the complete type up at every
     FindExternalLexicalDecls.

  2) Even if the types were completed properly,
     ValueObjectConstResult overrode the type
     of every ValueObject using the complete type
     for its class from the debug information.
     Superclasses of complete classes are not
     guaranteed to be complete.  Although "frame
     variable" uses the debug information,
     the expression parser does now piece together
     complete types at every level (as described
     in Bullet 1), so I provided a way for the
     expression parser to prevent overriding.

  3) Type sizes were being miscomputed by
     ClangASTContext.  It ignored the ISA pointer
     and only counted fields.  We now correctly
     count the ISA in the size of an object.

<rdar://problem/12315386>

llvm-svn: 164333
2012-09-20 23:21:16 +00:00

1723 lines
61 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/Symbol/ClangNamespaceDecl.h"
#include "lldb/Symbol/Function.h"
#include "lldb/Symbol/SymbolVendor.h"
#include "lldb/Target/ObjCLanguageRuntime.h"
#include "lldb/Target/Target.h"
using namespace clang;
using namespace lldb_private;
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.
DeclContext::lookup_result
ClangASTSource::FindExternalVisibleDeclsByName
(
const DeclContext *decl_ctx,
DeclarationName clang_decl_name
)
{
if (!m_ast_context)
return SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
if (GetImportInProgress())
return SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
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)
{
return SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
}
}
break;
// Operator names. Not important for now.
case DeclarationName::CXXOperatorName:
case DeclarationName::CXXLiteralOperatorName:
return DeclContext::lookup_result();
// 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:
return SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
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);
return SetExternalVisibleDeclsForName (decl_ctx, clang_decl_name, method_decls);
}
// These aren't possible in the global context.
case DeclarationName::CXXConstructorName:
case DeclarationName::CXXDestructorName:
case DeclarationName::CXXConversionFunctionName:
return DeclContext::lookup_result();
}
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
{
return SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
}
}
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...
return DeclContext::lookup_result();
}
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);
DeclContext::lookup_result result (SetExternalVisibleDeclsForName (decl_ctx, clang_decl_name, name_decls));
// --g_depth;
m_active_lookups.erase (uniqued_const_decl_name);
return result;
}
void
ClangASTSource::CompleteType (TagDecl *tag_decl)
{
lldb::LogSP 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,
m_ast_context,
tag_decl,
tag_decl->getName().str().c_str());
log->Printf(" CTD[%u] Before:", current_id);
ASTDumper dumper((Decl*)tag_decl);
dumper.ToLog(log, " [CTD] ");
}
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,
namespace_map.get(),
(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.GetNamespaceDecl()->getNameAsString().c_str(),
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;
lldb::clang_type_t opaque_type = type->GetClangFullType();
if (!opaque_type)
continue;
const TagType *tag_type = QualType::getFromOpaquePtr(opaque_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());
ClangNamespaceDecl namespace_decl;
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;
lldb::clang_type_t opaque_type = type->GetClangFullType();
if (!opaque_type)
continue;
const TagType *tag_type = QualType::getFromOpaquePtr(opaque_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)
{
lldb::LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
if (log)
{
log->Printf(" [CompleteObjCInterfaceDecl] on (ASTContext*)%p Completing an ObjCInterfaceDecl named %s", m_ast_context, interface_decl->getName().str().c_str());
log->Printf(" [COID] Before:");
ASTDumper dumper((Decl*)interface_decl);
dumper.ToLog(log, " [COID] ");
}
m_ast_importer->CompleteObjCInterfaceDecl (interface_decl);
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->GetClangFullType(), complete_type_sp->GetClangAST());
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;
}
clang::ExternalLoadResult
ClangASTSource::FindExternalLexicalDecls (const DeclContext *decl_context,
bool (*predicate)(Decl::Kind),
llvm::SmallVectorImpl<Decl*> &decls)
{
lldb::LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
const Decl *context_decl = dyn_cast<Decl>(decl_context);
if (!context_decl)
return ELR_Failure;
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 with %s predicate",
current_id,
m_ast_context,
context_named_decl->getNameAsString().c_str(),
context_decl->getDeclKindName(),
context_decl,
(predicate ? "non-null" : "null"));
else if(context_decl)
log->Printf("FindExternalLexicalDecls[%u] on (ASTContext*)%p in (%sDecl*)%p with %s predicate",
current_id,
m_ast_context,
context_decl->getDeclKindName(),
context_decl,
(predicate ? "non-null" : "null"));
else
log->Printf("FindExternalLexicalDecls[%u] on (ASTContext*)%p in a NULL context with %s predicate",
current_id,
m_ast_context,
(predicate ? "non-null" : "null"));
}
Decl *original_decl = NULL;
ASTContext *original_ctx = NULL;
if (!m_ast_importer->ResolveDeclOrigin(context_decl, &original_decl, &original_ctx))
return ELR_Failure;
if (log)
{
log->Printf(" FELD[%u] Original decl (Decl*)%p:", current_id, 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 ELR_Failure;
for (TagDecl::decl_iterator iter = original_decl_context->decls_begin();
iter != original_decl_context->decls_end();
++iter)
{
Decl *decl = *iter;
if (!predicate || 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 %s] lexical decl %s", current_id, context_named_decl->getNameAsString().c_str(), ast_dumper.GetCString());
else
log->Printf(" FELD[%d] Adding lexical decl %s", current_id, 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();
if (const TagType *copied_field_tag_type = copied_field_type->getAs<TagType>())
m_ast_importer->CompleteTagDecl(copied_field_tag_type->getDecl());
if (const ObjCObjectType *copied_field_object_type = copied_field_type->getAs<ObjCObjectType>())
if (ObjCInterfaceDecl *copied_field_objc_interface_decl = copied_field_object_type->getInterface())
m_ast_importer->CompleteObjCInterfaceDecl(copied_field_objc_interface_decl);
}
decls.push_back(copied_decl);
}
}
return ELR_AlreadyLoaded;
}
void
ClangASTSource::FindExternalVisibleDecls (NameSearchContext &context)
{
assert (m_ast_context);
const ConstString name(context.m_decl_name.getAsString().c_str());
lldb::LogSP 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, 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, 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, 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,
namespace_map.get(),
(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.GetNamespaceDecl()->getNameAsString().c_str(),
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
{
ClangNamespaceDecl 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,
context.m_namespace_map.get(),
(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,
ClangNamespaceDecl &namespace_decl,
unsigned int current_id)
{
assert (m_ast_context);
lldb::LogSP 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)
{
ClangNamespaceDecl 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, ClangNamespaceDecl>(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
{
ModuleList &target_images = m_target->GetImages();
Mutex::Locker modules_locker (target_images.GetMutex());
for (uint32_t i = 0, e = target_images.GetSize();
i != e;
++i)
{
lldb::ModuleSP image = target_images.GetModuleAtIndexUnlocked(i);
if (!image)
continue;
ClangNamespaceDecl 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, ClangNamespaceDecl>(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);
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>"));
}
clang::ASTContext *type_ast = type_sp->GetClangAST();
lldb::clang_type_t full_type = type_sp->GetClangFullType();
void *copied_type = GuardedCopyType(m_ast_context, type_ast, full_type);
if (!copied_type)
{
if (log)
log->Printf(" CAS::FEVD[%u] - Couldn't export the type for a constant integer result",
current_id);
break;
}
context.AddTypeDecl(copied_type);
}
} while(0);
}
static void
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();
int 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);
ObjCInterfaceDecl::lookup_result result = original_interface_decl->lookup(original_decl_name);
if (result.first == result.second)
return;
if (!*result.first)
return;
ObjCMethodDecl *result_method = dyn_cast<ObjCMethodDecl>(*result.first);
if (!result_method)
return;
Decl *copied_decl = ast_importer->CopyDecl(ast_context, &result_method->getASTContext(), result_method);
if (!copied_decl)
return;
ObjCMethodDecl *copied_method_decl = dyn_cast<ObjCMethodDecl>(copied_decl);
if (!copied_method_decl)
return;
lldb::LogSP 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;
}
void
ClangASTSource::FindObjCMethodDecls (NameSearchContext &context)
{
lldb::LogSP 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);
FindObjCMethodDeclsWithOrigin(current_id,
context,
original_interface_decl,
m_ast_context,
m_ast_importer,
"in debug info");
} 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();
ConstString selector_name(ss.GetData());
if (log)
log->Printf("ClangASTSource::FindObjCMethodDecls[%d] on (ASTContext*)%p for selector [%s %s]",
current_id,
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;
DeclContext *function_ctx = sc.function->GetClangDeclContext();
if (!function_ctx)
continue;
ObjCMethodDecl *method_decl = dyn_cast<ObjCMethodDecl>(function_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 debug info) %s", current_id, dumper.GetCString());
}
context.AddNamedDecl(copied_method_decl);
}
}
}
else
{
do
{
// We need to look at the runtime.
lldb::ProcessSP process(m_target->GetProcessSP());
if (!process)
break;
ObjCLanguageRuntime *language_runtime(process->GetObjCLanguageRuntime());
TypeVendor *type_vendor = language_runtime->GetTypeVendor();
if (!type_vendor)
break;
ConstString interface_name(interface_decl->getNameAsString().c_str());
bool append = false;
uint32_t max_matches = 1;
std::vector <ClangASTType> types;
if (!type_vendor->FindTypes(interface_name,
append,
max_matches,
types))
break;
const clang::Type *runtime_clang_type = QualType::getFromOpaquePtr(types[0].GetOpaqueQualType()).getTypePtr();
const ObjCInterfaceType *runtime_interface_type = dyn_cast<ObjCInterfaceType>(runtime_clang_type);
if (!runtime_interface_type)
break;
ObjCInterfaceDecl *runtime_interface_decl = runtime_interface_type->getDecl();
FindObjCMethodDeclsWithOrigin(current_id,
context,
runtime_interface_decl,
m_ast_context,
m_ast_importer,
"in runtime");
}
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
FindObjCPropertyAndIvarDeclsWithOrigin (unsigned int current_id,
NameSearchContext &context,
clang::ASTContext &ast_context,
ClangASTImporter *ast_importer,
DeclFromUser<const ObjCInterfaceDecl> &origin_iface_decl)
{
lldb::LogSP 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)
{
lldb::LogSP 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,
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,
origin_iface_decl.decl,
&origin_iface_decl->getASTContext());
SymbolContext null_sc;
TypeList type_list;
lldb::ProcessSP process(m_target->GetProcessSP());
if (!process)
return;
ObjCLanguageRuntime *language_runtime(process->GetObjCLanguageRuntime());
if (!language_runtime)
return;
do
{
ObjCInterfaceDecl *complete_interface_decl = GetCompleteObjCInterface(const_cast<ObjCInterfaceDecl*>(parser_iface_decl.decl));
if (!complete_interface_decl)
break;
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,
complete_iface_decl.decl,
&complete_iface_decl->getASTContext());
if (FindObjCPropertyAndIvarDeclsWithOrigin(current_id,
context,
*m_ast_context,
m_ast_importer,
complete_iface_decl))
return;
}
while(0);
do
{
// Now check the runtime.
TypeVendor *type_vendor = language_runtime->GetTypeVendor();
if (!type_vendor)
break;
bool append = false;
uint32_t max_matches = 1;
std::vector <ClangASTType> types;
if (!type_vendor->FindTypes(class_name,
append,
max_matches,
types))
break;
const clang::Type *runtime_clang_type = QualType::getFromOpaquePtr(types[0].GetOpaqueQualType()).getTypePtr();
const ObjCInterfaceType *runtime_interface_type = dyn_cast<ObjCInterfaceType>(runtime_clang_type);
if (!runtime_interface_type)
break;
DeclFromUser<const ObjCInterfaceDecl> runtime_iface_decl(runtime_interface_type->getDecl());
if (log)
log->Printf("CAS::FOPD[%d] trying runtime (ObjCInterfaceDecl*)%p/(ASTContext*)%p...",
current_id,
runtime_iface_decl.decl,
&runtime_iface_decl->getASTContext());
if (FindObjCPropertyAndIvarDeclsWithOrigin(current_id,
context,
*m_ast_context,
m_ast_importer,
runtime_iface_decl))
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)
{
typedef llvm::DenseMap <const D*, O> MapType;
for (typename MapType::iterator fi = source_map.begin(), fe = source_map.end();
fi != fe;
++fi)
{
DeclFromUser <D> user_decl(const_cast<D*>(fi->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, fi->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)
{
static unsigned int invocation_id = 0;
unsigned int current_id = invocation_id++;
lldb::LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
if (log)
{
log->Printf("LayoutRecordType[%u] on (RecordDecl*)%p [name = '%s']",
current_id,
m_ast_context,
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;
for (RecordDecl::field_iterator fi = origin_record->field_begin(), fe = origin_record->field_end();
fi != fe;
++fi)
{
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, origin_record.decl);
log->Printf("LRT[%u] Size = %lld", current_id, size);
log->Printf("LRT[%u] Alignment = %lld", 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 = %lld bits",
current_id,
*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 = %lld chars",
current_id,
(is_virtual ? "Virtual " : ""),
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++;
lldb::LogSP 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,
m_ast_context,
name.GetCString(),
parent_map->begin()->second.GetNamespaceDecl()->getDeclName().getAsString().c_str());
else
log->Printf("CompleteNamespaceMap[%u] on (ASTContext*)%p Searching for namespace %s",
current_id,
m_ast_context,
name.GetCString());
}
if (parent_map)
{
for (ClangASTImporter::NamespaceMap::iterator i = parent_map->begin(), e = parent_map->end();
i != e;
++i)
{
ClangNamespaceDecl found_namespace_decl;
lldb::ModuleSP module_sp = i->first;
ClangNamespaceDecl 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, ClangNamespaceDecl>(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
{
ModuleList &target_images = m_target->GetImages();
Mutex::Locker modules_locker(target_images.GetMutex());
ClangNamespaceDecl null_namespace_decl;
for (uint32_t i = 0, e = target_images.GetSize();
i != e;
++i)
{
lldb::ModuleSP image = target_images.GetModuleAtIndexUnlocked(i);
if (!image)
continue;
ClangNamespaceDecl 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, ClangNamespaceDecl>(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 NULL;
lldb::LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
const ClangNamespaceDecl &namespace_decl = namespace_decls->begin()->second;
Decl *copied_decl = m_ast_importer->CopyDecl(m_ast_context, namespace_decl.GetASTContext(), namespace_decl.GetNamespaceDecl());
if (!copied_decl)
return NULL;
NamespaceDecl *copied_namespace_decl = dyn_cast<NamespaceDecl>(copied_decl);
m_ast_importer->RegisterNamespaceMap(copied_namespace_decl, namespace_decls);
return dyn_cast<NamespaceDecl>(copied_decl);
}
void *
ClangASTSource::GuardedCopyType (ASTContext *dest_context,
ASTContext *source_context,
void *clang_type)
{
SetImportInProgress(true);
QualType ret_qual_type = m_ast_importer->CopyType (m_ast_context, source_context, QualType::getFromOpaquePtr(clang_type));
void *ret = ret_qual_type.getAsOpaquePtr();
SetImportInProgress(false);
if (ret && ret_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 NULL;
return ret;
}
clang::NamedDecl *
NameSearchContext::AddVarDecl(void *type)
{
IdentifierInfo *ii = m_decl_name.getAsIdentifierInfo();
assert (type && "Type for variable must be non-NULL!");
clang::NamedDecl *Decl = VarDecl::Create(*m_ast_source.m_ast_context,
const_cast<DeclContext*>(m_decl_context),
SourceLocation(),
SourceLocation(),
ii,
QualType::getFromOpaquePtr(type),
0,
SC_Static,
SC_Static);
m_decls.push_back(Decl);
return Decl;
}
clang::NamedDecl *
NameSearchContext::AddFunDecl (void *type)
{
assert (type && "Type for variable must be non-NULL!");
clang::FunctionDecl *func_decl = FunctionDecl::Create (*m_ast_source.m_ast_context,
const_cast<DeclContext*>(m_decl_context),
SourceLocation(),
SourceLocation(),
m_decl_name.getAsIdentifierInfo(),
QualType::getFromOpaquePtr(type),
NULL,
SC_Static,
SC_Static,
false,
true);
// 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.
QualType qual_type (QualType::getFromOpaquePtr(type));
const FunctionProtoType *func_proto_type = qual_type.getTypePtr()->getAs<FunctionProtoType>();
if (func_proto_type)
{
unsigned NumArgs = func_proto_type->getNumArgs();
unsigned ArgIndex;
SmallVector<ParmVarDecl *, 5> parm_var_decls;
for (ArgIndex = 0; ArgIndex < NumArgs; ++ArgIndex)
{
QualType arg_qual_type (func_proto_type->getArgType(ArgIndex));
parm_var_decls.push_back(ParmVarDecl::Create (*m_ast_source.m_ast_context,
const_cast<DeclContext*>(m_decl_context),
SourceLocation(),
SourceLocation(),
NULL,
arg_qual_type,
NULL,
SC_Static,
SC_Static,
NULL));
}
func_decl->setParams(ArrayRef<ParmVarDecl*>(parm_var_decls));
}
else
{
lldb::LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS));
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
NULL, // argument types
0, // number of arguments
proto_info));
return AddFunDecl(generic_function_type.getAsOpaquePtr());
}
clang::NamedDecl *
NameSearchContext::AddTypeDecl(void *type)
{
if (type)
{
QualType qual_type = QualType::getFromOpaquePtr(type);
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::DeclContextLookupConstResult result)
{
for (clang::NamedDecl * const *decl_iterator = result.first;
decl_iterator != result.second;
++decl_iterator)
m_decls.push_back (*decl_iterator);
}
void
NameSearchContext::AddNamedDecl (clang::NamedDecl *decl)
{
m_decls.push_back (decl);
}