blob: 4eb538fb135252d1793e8247d194eb3b1836ebfa [file] [log] [blame]
//===-- Type.cpp ------------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// Other libraries and framework includes
#include "lldb/Core/DataExtractor.h"
#include "lldb/Core/DataBufferHeap.h"
#include "lldb/Core/Module.h"
#include "lldb/Core/Scalar.h"
#include "lldb/Core/StreamString.h"
#include "lldb/Symbol/ClangASTType.h"
#include "lldb/Symbol/ClangASTContext.h"
#include "lldb/Symbol/ObjectFile.h"
#include "lldb/Symbol/SymbolContextScope.h"
#include "lldb/Symbol/SymbolFile.h"
#include "lldb/Symbol/SymbolVendor.h"
#include "lldb/Symbol/Type.h"
#include "lldb/Symbol/TypeList.h"
#include "lldb/Target/ExecutionContext.h"
#include "lldb/Target/Process.h"
#include "lldb/Target/Target.h"
#include "llvm/ADT/StringRef.h"
#include "clang/AST/Decl.h"
using namespace lldb;
using namespace lldb_private;
class TypeAppendVisitor
{
public:
TypeAppendVisitor(TypeListImpl &type_list) :
m_type_list(type_list)
{
}
bool
operator() (const lldb::TypeSP& type)
{
m_type_list.Append(TypeImplSP(new TypeImpl(type)));
return true;
}
private:
TypeListImpl &m_type_list;
};
void
TypeListImpl::Append (const lldb_private::TypeList &type_list)
{
TypeAppendVisitor cb(*this);
type_list.ForEach(cb);
}
Type *
SymbolFileType::GetType ()
{
if (!m_type_sp)
{
Type *resolved_type = m_symbol_file.ResolveTypeUID (GetID());
if (resolved_type)
m_type_sp = resolved_type->shared_from_this();
}
return m_type_sp.get();
}
Type::Type
(
lldb::user_id_t uid,
SymbolFile* symbol_file,
const ConstString &name,
uint64_t byte_size,
SymbolContextScope *context,
user_id_t encoding_uid,
EncodingDataType encoding_uid_type,
const Declaration& decl,
const ClangASTType &clang_type,
ResolveState clang_type_resolve_state
) :
std::enable_shared_from_this<Type> (),
UserID (uid),
m_name (name),
m_symbol_file (symbol_file),
m_context (context),
m_encoding_type (nullptr),
m_encoding_uid (encoding_uid),
m_encoding_uid_type (encoding_uid_type),
m_byte_size (byte_size),
m_decl (decl),
m_clang_type (clang_type)
{
m_flags.clang_type_resolve_state = (clang_type ? clang_type_resolve_state : eResolveStateUnresolved);
m_flags.is_complete_objc_class = false;
}
Type::Type () :
std::enable_shared_from_this<Type> (),
UserID (0),
m_name ("<INVALID TYPE>"),
m_symbol_file (nullptr),
m_context (nullptr),
m_encoding_type (nullptr),
m_encoding_uid (LLDB_INVALID_UID),
m_encoding_uid_type (eEncodingInvalid),
m_byte_size (0),
m_decl (),
m_clang_type ()
{
m_flags.clang_type_resolve_state = eResolveStateUnresolved;
m_flags.is_complete_objc_class = false;
}
Type::Type (const Type &rhs) :
std::enable_shared_from_this<Type> (rhs),
UserID (rhs),
m_name (rhs.m_name),
m_symbol_file (rhs.m_symbol_file),
m_context (rhs.m_context),
m_encoding_type (rhs.m_encoding_type),
m_encoding_uid (rhs.m_encoding_uid),
m_encoding_uid_type (rhs.m_encoding_uid_type),
m_byte_size (rhs.m_byte_size),
m_decl (rhs.m_decl),
m_clang_type (rhs.m_clang_type),
m_flags (rhs.m_flags)
{
}
const Type&
Type::operator= (const Type& rhs)
{
if (this != &rhs)
{
}
return *this;
}
void
Type::GetDescription (Stream *s, lldb::DescriptionLevel level, bool show_name)
{
*s << "id = " << (const UserID&)*this;
// Call the name accessor to make sure we resolve the type name
if (show_name)
{
const ConstString &type_name = GetName();
if (type_name)
{
*s << ", name = \"" << type_name << '"';
ConstString qualified_type_name (GetQualifiedName());
if (qualified_type_name != type_name)
{
*s << ", qualified = \"" << qualified_type_name << '"';
}
}
}
// Call the get byte size accesor so we resolve our byte size
if (GetByteSize())
s->Printf(", byte-size = %" PRIu64, m_byte_size);
bool show_fullpaths = (level == lldb::eDescriptionLevelVerbose);
m_decl.Dump(s, show_fullpaths);
if (m_clang_type.IsValid())
{
*s << ", clang_type = \"";
GetClangForwardType().DumpTypeDescription(s);
*s << '"';
}
else if (m_encoding_uid != LLDB_INVALID_UID)
{
s->Printf(", type_uid = 0x%8.8" PRIx64, m_encoding_uid);
switch (m_encoding_uid_type)
{
case eEncodingInvalid: break;
case eEncodingIsUID: s->PutCString(" (unresolved type)"); break;
case eEncodingIsConstUID: s->PutCString(" (unresolved const type)"); break;
case eEncodingIsRestrictUID: s->PutCString(" (unresolved restrict type)"); break;
case eEncodingIsVolatileUID: s->PutCString(" (unresolved volatile type)"); break;
case eEncodingIsTypedefUID: s->PutCString(" (unresolved typedef)"); break;
case eEncodingIsPointerUID: s->PutCString(" (unresolved pointer)"); break;
case eEncodingIsLValueReferenceUID: s->PutCString(" (unresolved L value reference)"); break;
case eEncodingIsRValueReferenceUID: s->PutCString(" (unresolved R value reference)"); break;
case eEncodingIsSyntheticUID: s->PutCString(" (synthetic type)"); break;
}
}
}
void
Type::Dump (Stream *s, bool show_context)
{
s->Printf("%p: ", static_cast<void*>(this));
s->Indent();
*s << "Type" << static_cast<const UserID&>(*this) << ' ';
if (m_name)
*s << ", name = \"" << m_name << "\"";
if (m_byte_size != 0)
s->Printf(", size = %" PRIu64, m_byte_size);
if (show_context && m_context != nullptr)
{
s->PutCString(", context = ( ");
m_context->DumpSymbolContext(s);
s->PutCString(" )");
}
bool show_fullpaths = false;
m_decl.Dump (s,show_fullpaths);
if (m_clang_type.IsValid())
{
*s << ", clang_type = " << m_clang_type.GetOpaqueQualType() << ' ';
GetClangForwardType().DumpTypeDescription (s);
}
else if (m_encoding_uid != LLDB_INVALID_UID)
{
*s << ", type_data = " << (uint64_t)m_encoding_uid;
switch (m_encoding_uid_type)
{
case eEncodingInvalid: break;
case eEncodingIsUID: s->PutCString(" (unresolved type)"); break;
case eEncodingIsConstUID: s->PutCString(" (unresolved const type)"); break;
case eEncodingIsRestrictUID: s->PutCString(" (unresolved restrict type)"); break;
case eEncodingIsVolatileUID: s->PutCString(" (unresolved volatile type)"); break;
case eEncodingIsTypedefUID: s->PutCString(" (unresolved typedef)"); break;
case eEncodingIsPointerUID: s->PutCString(" (unresolved pointer)"); break;
case eEncodingIsLValueReferenceUID: s->PutCString(" (unresolved L value reference)"); break;
case eEncodingIsRValueReferenceUID: s->PutCString(" (unresolved R value reference)"); break;
case eEncodingIsSyntheticUID: s->PutCString(" (synthetic type)"); break;
}
}
//
// if (m_access)
// s->Printf(", access = %u", m_access);
s->EOL();
}
const ConstString &
Type::GetName()
{
if (!m_name)
m_name = GetClangForwardType().GetConstTypeName();
return m_name;
}
void
Type::DumpTypeName(Stream *s)
{
GetName().Dump(s, "<invalid-type-name>");
}
void
Type::DumpValue
(
ExecutionContext *exe_ctx,
Stream *s,
const DataExtractor &data,
uint32_t data_byte_offset,
bool show_types,
bool show_summary,
bool verbose,
lldb::Format format
)
{
if (ResolveClangType(eResolveStateForward))
{
if (show_types)
{
s->PutChar('(');
if (verbose)
s->Printf("Type{0x%8.8" PRIx64 "} ", GetID());
DumpTypeName (s);
s->PutCString(") ");
}
GetClangForwardType().DumpValue (exe_ctx,
s,
format == lldb::eFormatDefault ? GetFormat() : format,
data,
data_byte_offset,
GetByteSize(),
0, // Bitfield bit size
0, // Bitfield bit offset
show_types,
show_summary,
verbose,
0);
}
}
Type *
Type::GetEncodingType ()
{
if (m_encoding_type == nullptr && m_encoding_uid != LLDB_INVALID_UID)
m_encoding_type = m_symbol_file->ResolveTypeUID(m_encoding_uid);
return m_encoding_type;
}
uint64_t
Type::GetByteSize()
{
if (m_byte_size == 0)
{
switch (m_encoding_uid_type)
{
case eEncodingInvalid:
case eEncodingIsSyntheticUID:
break;
case eEncodingIsUID:
case eEncodingIsConstUID:
case eEncodingIsRestrictUID:
case eEncodingIsVolatileUID:
case eEncodingIsTypedefUID:
{
Type *encoding_type = GetEncodingType ();
if (encoding_type)
m_byte_size = encoding_type->GetByteSize();
if (m_byte_size == 0)
m_byte_size = GetClangLayoutType().GetByteSize();
}
break;
// If we are a pointer or reference, then this is just a pointer size;
case eEncodingIsPointerUID:
case eEncodingIsLValueReferenceUID:
case eEncodingIsRValueReferenceUID:
m_byte_size = m_symbol_file->GetClangASTContext().GetPointerByteSize();
break;
}
}
return m_byte_size;
}
uint32_t
Type::GetNumChildren (bool omit_empty_base_classes)
{
return GetClangForwardType().GetNumChildren(omit_empty_base_classes);
}
bool
Type::IsAggregateType ()
{
return GetClangForwardType().IsAggregateType();
}
lldb::TypeSP
Type::GetTypedefType()
{
lldb::TypeSP type_sp;
if (IsTypedef())
{
Type *typedef_type = m_symbol_file->ResolveTypeUID(m_encoding_uid);
if (typedef_type)
type_sp = typedef_type->shared_from_this();
}
return type_sp;
}
lldb::Format
Type::GetFormat ()
{
return GetClangForwardType().GetFormat();
}
lldb::Encoding
Type::GetEncoding (uint64_t &count)
{
// Make sure we resolve our type if it already hasn't been.
return GetClangForwardType().GetEncoding(count);
}
bool
Type::DumpValueInMemory
(
ExecutionContext *exe_ctx,
Stream *s,
lldb::addr_t address,
AddressType address_type,
bool show_types,
bool show_summary,
bool verbose
)
{
if (address != LLDB_INVALID_ADDRESS)
{
DataExtractor data;
Target *target = nullptr;
if (exe_ctx)
target = exe_ctx->GetTargetPtr();
if (target)
data.SetByteOrder (target->GetArchitecture().GetByteOrder());
if (ReadFromMemory (exe_ctx, address, address_type, data))
{
DumpValue(exe_ctx, s, data, 0, show_types, show_summary, verbose);
return true;
}
}
return false;
}
bool
Type::ReadFromMemory (ExecutionContext *exe_ctx, lldb::addr_t addr, AddressType address_type, DataExtractor &data)
{
if (address_type == eAddressTypeFile)
{
// Can't convert a file address to anything valid without more
// context (which Module it came from)
return false;
}
const uint64_t byte_size = GetByteSize();
if (data.GetByteSize() < byte_size)
{
lldb::DataBufferSP data_sp(new DataBufferHeap (byte_size, '\0'));
data.SetData(data_sp);
}
uint8_t* dst = (uint8_t*)data.PeekData(0, byte_size);
if (dst != nullptr)
{
if (address_type == eAddressTypeHost)
{
// The address is an address in this process, so just copy it
if (addr == 0)
return false;
memcpy (dst, (uint8_t*)nullptr + addr, byte_size);
return true;
}
else
{
if (exe_ctx)
{
Process *process = exe_ctx->GetProcessPtr();
if (process)
{
Error error;
return exe_ctx->GetProcessPtr()->ReadMemory(addr, dst, byte_size, error) == byte_size;
}
}
}
}
return false;
}
bool
Type::WriteToMemory (ExecutionContext *exe_ctx, lldb::addr_t addr, AddressType address_type, DataExtractor &data)
{
return false;
}
TypeList*
Type::GetTypeList()
{
return GetSymbolFile()->GetTypeList();
}
const Declaration &
Type::GetDeclaration () const
{
return m_decl;
}
bool
Type::ResolveClangType (ResolveState clang_type_resolve_state)
{
Type *encoding_type = nullptr;
if (!m_clang_type.IsValid())
{
encoding_type = GetEncodingType();
if (encoding_type)
{
switch (m_encoding_uid_type)
{
case eEncodingIsUID:
{
ClangASTType encoding_clang_type = encoding_type->GetClangForwardType();
if (encoding_clang_type.IsValid())
{
m_clang_type = encoding_clang_type;
m_flags.clang_type_resolve_state = encoding_type->m_flags.clang_type_resolve_state;
}
}
break;
case eEncodingIsConstUID:
m_clang_type = encoding_type->GetClangForwardType().AddConstModifier();
break;
case eEncodingIsRestrictUID:
m_clang_type = encoding_type->GetClangForwardType().AddRestrictModifier();
break;
case eEncodingIsVolatileUID:
m_clang_type = encoding_type->GetClangForwardType().AddVolatileModifier();
break;
case eEncodingIsTypedefUID:
m_clang_type = encoding_type->GetClangForwardType().CreateTypedefType (GetName().AsCString(),
GetSymbolFile()->GetClangDeclContextContainingTypeUID(GetID()));
m_name.Clear();
break;
case eEncodingIsPointerUID:
m_clang_type = encoding_type->GetClangForwardType().GetPointerType();
break;
case eEncodingIsLValueReferenceUID:
m_clang_type = encoding_type->GetClangForwardType().GetLValueReferenceType();
break;
case eEncodingIsRValueReferenceUID:
m_clang_type = encoding_type->GetClangForwardType().GetRValueReferenceType();
break;
default:
assert(!"Unhandled encoding_data_type.");
break;
}
}
else
{
// We have no encoding type, return void?
ClangASTType void_clang_type (ClangASTContext::GetBasicType(GetClangASTContext().getASTContext(), eBasicTypeVoid));
switch (m_encoding_uid_type)
{
case eEncodingIsUID:
m_clang_type = void_clang_type;
break;
case eEncodingIsConstUID:
m_clang_type = void_clang_type.AddConstModifier ();
break;
case eEncodingIsRestrictUID:
m_clang_type = void_clang_type.AddRestrictModifier ();
break;
case eEncodingIsVolatileUID:
m_clang_type = void_clang_type.AddVolatileModifier ();
break;
case eEncodingIsTypedefUID:
m_clang_type = void_clang_type.CreateTypedefType (GetName().AsCString(),
GetSymbolFile()->GetClangDeclContextContainingTypeUID(GetID()));
break;
case eEncodingIsPointerUID:
m_clang_type = void_clang_type.GetPointerType ();
break;
case eEncodingIsLValueReferenceUID:
m_clang_type = void_clang_type.GetLValueReferenceType ();
break;
case eEncodingIsRValueReferenceUID:
m_clang_type = void_clang_type.GetRValueReferenceType ();
break;
default:
assert(!"Unhandled encoding_data_type.");
break;
}
}
}
// Check if we have a forward reference to a class/struct/union/enum?
if (m_clang_type.IsValid() && m_flags.clang_type_resolve_state < clang_type_resolve_state)
{
m_flags.clang_type_resolve_state = eResolveStateFull;
if (!m_clang_type.IsDefined ())
{
// We have a forward declaration, we need to resolve it to a complete definition.
m_symbol_file->ResolveClangOpaqueTypeDefinition (m_clang_type);
}
}
// If we have an encoding type, then we need to make sure it is
// resolved appropriately.
if (m_encoding_uid != LLDB_INVALID_UID)
{
if (encoding_type == nullptr)
encoding_type = GetEncodingType();
if (encoding_type)
{
ResolveState encoding_clang_type_resolve_state = clang_type_resolve_state;
if (clang_type_resolve_state == eResolveStateLayout)
{
switch (m_encoding_uid_type)
{
case eEncodingIsPointerUID:
case eEncodingIsLValueReferenceUID:
case eEncodingIsRValueReferenceUID:
encoding_clang_type_resolve_state = eResolveStateForward;
break;
default:
break;
}
}
encoding_type->ResolveClangType (encoding_clang_type_resolve_state);
}
}
return m_clang_type.IsValid();
}
uint32_t
Type::GetEncodingMask ()
{
uint32_t encoding_mask = 1u << m_encoding_uid_type;
Type *encoding_type = GetEncodingType();
assert (encoding_type != this);
if (encoding_type)
encoding_mask |= encoding_type->GetEncodingMask ();
return encoding_mask;
}
ClangASTType
Type::GetClangFullType ()
{
ResolveClangType(eResolveStateFull);
return m_clang_type;
}
ClangASTType
Type::GetClangLayoutType ()
{
ResolveClangType(eResolveStateLayout);
return m_clang_type;
}
ClangASTType
Type::GetClangForwardType ()
{
ResolveClangType (eResolveStateForward);
return m_clang_type;
}
ClangASTContext &
Type::GetClangASTContext ()
{
return m_symbol_file->GetClangASTContext();
}
int
Type::Compare(const Type &a, const Type &b)
{
// Just compare the UID values for now...
lldb::user_id_t a_uid = a.GetID();
lldb::user_id_t b_uid = b.GetID();
if (a_uid < b_uid)
return -1;
if (a_uid > b_uid)
return 1;
return 0;
// if (a.getQualType() == b.getQualType())
// return 0;
}
#if 0 // START REMOVE
// Move this into ClangASTType
void *
Type::CreateClangPointerType (Type *type)
{
assert(type);
return GetClangASTContext().CreatePointerType(type->GetClangForwardType());
}
void *
Type::CreateClangTypedefType (Type *typedef_type, Type *base_type)
{
assert(typedef_type && base_type);
return GetClangASTContext().CreateTypedefType (typedef_type->GetName().AsCString(),
base_type->GetClangForwardType(),
typedef_type->GetSymbolFile()->GetClangDeclContextContainingTypeUID(typedef_type->GetID()));
}
void *
Type::CreateClangLValueReferenceType (Type *type)
{
assert(type);
return GetClangASTContext().CreateLValueReferenceType(type->GetClangForwardType());
}
void *
Type::CreateClangRValueReferenceType (Type *type)
{
assert(type);
return GetClangASTContext().CreateRValueReferenceType (type->GetClangForwardType());
}
#endif // END REMOVE
bool
Type::IsRealObjCClass()
{
// For now we are just skipping ObjC classes that get made by hand from the runtime, because
// those don't have any information. We could extend this to only return true for "full
// definitions" if we can figure that out.
if (m_clang_type.IsObjCObjectOrInterfaceType() && GetByteSize() != 0)
return true;
else
return false;
}
ConstString
Type::GetQualifiedName ()
{
return GetClangForwardType().GetConstTypeName();
}
bool
Type::GetTypeScopeAndBasename (const char* &name_cstr,
std::string &scope,
std::string &basename,
TypeClass &type_class)
{
// Protect against null c string.
type_class = eTypeClassAny;
if (name_cstr && name_cstr[0])
{
llvm::StringRef name_strref(name_cstr);
if (name_strref.startswith("struct "))
{
name_cstr += 7;
type_class = eTypeClassStruct;
}
else if (name_strref.startswith("class "))
{
name_cstr += 6;
type_class = eTypeClassClass;
}
else if (name_strref.startswith("union "))
{
name_cstr += 6;
type_class = eTypeClassUnion;
}
else if (name_strref.startswith("enum "))
{
name_cstr += 5;
type_class = eTypeClassEnumeration;
}
else if (name_strref.startswith("typedef "))
{
name_cstr += 8;
type_class = eTypeClassTypedef;
}
const char *basename_cstr = name_cstr;
const char* namespace_separator = ::strstr (basename_cstr, "::");
if (namespace_separator)
{
const char* template_arg_char = ::strchr (basename_cstr, '<');
while (namespace_separator != nullptr)
{
if (template_arg_char && namespace_separator > template_arg_char) // but namespace'd template arguments are still good to go
break;
basename_cstr = namespace_separator + 2;
namespace_separator = strstr(basename_cstr, "::");
}
if (basename_cstr > name_cstr)
{
scope.assign (name_cstr, basename_cstr - name_cstr);
basename.assign (basename_cstr);
return true;
}
}
}
return false;
}
ModuleSP
Type::GetModule()
{
if (m_symbol_file)
return m_symbol_file->GetObjectFile()->GetModule();
return ModuleSP();
}
TypeAndOrName::TypeAndOrName () : m_type_pair(), m_type_name()
{
}
TypeAndOrName::TypeAndOrName (TypeSP &in_type_sp) : m_type_pair(in_type_sp)
{
if (in_type_sp)
m_type_name = in_type_sp->GetName();
}
TypeAndOrName::TypeAndOrName (const char *in_type_str) : m_type_name(in_type_str)
{
}
TypeAndOrName::TypeAndOrName (const TypeAndOrName &rhs) : m_type_pair (rhs.m_type_pair), m_type_name (rhs.m_type_name)
{
}
TypeAndOrName::TypeAndOrName (ConstString &in_type_const_string) : m_type_name (in_type_const_string)
{
}
TypeAndOrName &
TypeAndOrName::operator= (const TypeAndOrName &rhs)
{
if (this != &rhs)
{
m_type_name = rhs.m_type_name;
m_type_pair = rhs.m_type_pair;
}
return *this;
}
bool
TypeAndOrName::operator==(const TypeAndOrName &other) const
{
if (m_type_pair != other.m_type_pair)
return false;
if (m_type_name != other.m_type_name)
return false;
return true;
}
bool
TypeAndOrName::operator!=(const TypeAndOrName &other) const
{
if (m_type_pair != other.m_type_pair)
return true;
if (m_type_name != other.m_type_name)
return true;
return false;
}
ConstString
TypeAndOrName::GetName () const
{
if (m_type_name)
return m_type_name;
if (m_type_pair)
return m_type_pair.GetName();
return ConstString("<invalid>");
}
void
TypeAndOrName::SetName (const ConstString &type_name)
{
m_type_name = type_name;
}
void
TypeAndOrName::SetName (const char *type_name_cstr)
{
m_type_name.SetCString (type_name_cstr);
}
void
TypeAndOrName::SetTypeSP (lldb::TypeSP type_sp)
{
m_type_pair.SetType(type_sp);
if (m_type_pair)
m_type_name = m_type_pair.GetName();
}
void
TypeAndOrName::SetClangASTType (ClangASTType clang_type)
{
m_type_pair.SetType(clang_type);
if (m_type_pair)
m_type_name = m_type_pair.GetName();
}
bool
TypeAndOrName::IsEmpty() const
{
if ((bool)m_type_name || (bool)m_type_pair)
return false;
else
return true;
}
void
TypeAndOrName::Clear ()
{
m_type_name.Clear();
m_type_pair.Clear();
}
bool
TypeAndOrName::HasName () const
{
return (bool)m_type_name;
}
bool
TypeAndOrName::HasTypeSP () const
{
return m_type_pair.GetTypeSP().get() != nullptr;
}
bool
TypeAndOrName::HasClangASTType () const
{
return m_type_pair.GetClangASTType().IsValid();
}
TypeImpl::TypeImpl() :
m_module_wp(),
m_static_type(),
m_dynamic_type()
{
}
TypeImpl::TypeImpl(const TypeImpl& rhs) :
m_module_wp (rhs.m_module_wp),
m_static_type(rhs.m_static_type),
m_dynamic_type(rhs.m_dynamic_type)
{
}
TypeImpl::TypeImpl (const lldb::TypeSP &type_sp) :
m_module_wp (),
m_static_type(),
m_dynamic_type()
{
SetType (type_sp);
}
TypeImpl::TypeImpl (const ClangASTType &clang_type) :
m_module_wp (),
m_static_type(),
m_dynamic_type()
{
SetType (clang_type);
}
TypeImpl::TypeImpl (const lldb::TypeSP &type_sp, const ClangASTType &dynamic) :
m_module_wp (),
m_static_type (type_sp),
m_dynamic_type(dynamic)
{
SetType (type_sp, dynamic);
}
TypeImpl::TypeImpl (const ClangASTType &static_type, const ClangASTType &dynamic_type) :
m_module_wp (),
m_static_type (),
m_dynamic_type()
{
SetType (static_type, dynamic_type);
}
TypeImpl::TypeImpl (const TypePair &pair, const ClangASTType &dynamic) :
m_module_wp (),
m_static_type (),
m_dynamic_type()
{
SetType (pair, dynamic);
}
void
TypeImpl::SetType (const lldb::TypeSP &type_sp)
{
m_static_type.SetType(type_sp);
if (type_sp)
m_module_wp = type_sp->GetModule();
else
m_module_wp = lldb::ModuleWP();
}
void
TypeImpl::SetType (const ClangASTType &clang_type)
{
m_module_wp = lldb::ModuleWP();
m_static_type.SetType (clang_type);
}
void
TypeImpl::SetType (const lldb::TypeSP &type_sp, const ClangASTType &dynamic)
{
SetType (type_sp);
m_dynamic_type = dynamic;
}
void
TypeImpl::SetType (const ClangASTType &clang_type, const ClangASTType &dynamic)
{
m_module_wp = lldb::ModuleWP();
m_static_type.SetType (clang_type);
m_dynamic_type = dynamic;
}
void
TypeImpl::SetType (const TypePair &pair, const ClangASTType &dynamic)
{
m_module_wp = pair.GetModule();
m_static_type = pair;
m_dynamic_type = dynamic;
}
TypeImpl&
TypeImpl::operator = (const TypeImpl& rhs)
{
if (rhs != *this)
{
m_module_wp = rhs.m_module_wp;
m_static_type = rhs.m_static_type;
m_dynamic_type = rhs.m_dynamic_type;
}
return *this;
}
bool
TypeImpl::CheckModule (lldb::ModuleSP &module_sp) const
{
// Check if we have a module for this type. If we do and the shared pointer is
// can be successfully initialized with m_module_wp, return true. Else return false
// if we didn't have a module, or if we had a module and it has been deleted. Any
// functions doing anything with a TypeSP in this TypeImpl class should call this
// function and only do anything with the ivars if this function returns true. If
// we have a module, the "module_sp" will be filled in with a strong reference to the
// module so that the module will at least stay around long enough for the type
// query to succeed.
module_sp = m_module_wp.lock();
if (!module_sp)
{
lldb::ModuleWP empty_module_wp;
// If either call to "std::weak_ptr::owner_before(...) value returns true, this
// indicates that m_module_wp once contained (possibly still does) a reference
// to a valid shared pointer. This helps us know if we had a valid reference to
// a section which is now invalid because the module it was in was deleted
if (empty_module_wp.owner_before(m_module_wp) || m_module_wp.owner_before(empty_module_wp))
{
// m_module_wp had a valid reference to a module, but all strong references
// have been released and the module has been deleted
return false;
}
}
// We either successfully locked the module, or didn't have one to begin with
return true;
}
bool
TypeImpl::operator == (const TypeImpl& rhs) const
{
return m_static_type == rhs.m_static_type && m_dynamic_type == rhs.m_dynamic_type;
}
bool
TypeImpl::operator != (const TypeImpl& rhs) const
{
return m_static_type != rhs.m_static_type || m_dynamic_type != rhs.m_dynamic_type;
}
bool
TypeImpl::IsValid() const
{
// just a name is not valid
ModuleSP module_sp;
if (CheckModule (module_sp))
return m_static_type.IsValid() || m_dynamic_type.IsValid();
return false;
}
TypeImpl::operator bool () const
{
return IsValid();
}
void
TypeImpl::Clear()
{
m_module_wp = lldb::ModuleWP();
m_static_type.Clear();
m_dynamic_type.Clear();
}
ConstString
TypeImpl::GetName () const
{
ModuleSP module_sp;
if (CheckModule (module_sp))
{
if (m_dynamic_type)
return m_dynamic_type.GetTypeName();
return m_static_type.GetName ();
}
return ConstString();
}
ConstString
TypeImpl::GetDisplayTypeName () const
{
ModuleSP module_sp;
if (CheckModule (module_sp))
{
if (m_dynamic_type)
return m_dynamic_type.GetDisplayTypeName();
return m_static_type.GetDisplayTypeName();
}
return ConstString();
}
TypeImpl
TypeImpl::GetPointerType () const
{
ModuleSP module_sp;
if (CheckModule (module_sp))
{
if (m_dynamic_type.IsValid())
{
return TypeImpl(m_static_type, m_dynamic_type.GetPointerType());
}
return TypeImpl(m_static_type.GetPointerType());
}
return TypeImpl();
}
TypeImpl
TypeImpl::GetPointeeType () const
{
ModuleSP module_sp;
if (CheckModule (module_sp))
{
if (m_dynamic_type.IsValid())
{
return TypeImpl(m_static_type, m_dynamic_type.GetPointeeType());
}
return TypeImpl(m_static_type.GetPointeeType());
}
return TypeImpl();
}
TypeImpl
TypeImpl::GetReferenceType () const
{
ModuleSP module_sp;
if (CheckModule (module_sp))
{
if (m_dynamic_type.IsValid())
{
return TypeImpl(m_static_type, m_dynamic_type.GetLValueReferenceType());
}
return TypeImpl(m_static_type.GetReferenceType());
}
return TypeImpl();
}
TypeImpl
TypeImpl::GetTypedefedType () const
{
ModuleSP module_sp;
if (CheckModule (module_sp))
{
if (m_dynamic_type.IsValid())
{
return TypeImpl(m_static_type, m_dynamic_type.GetTypedefedType());
}
return TypeImpl(m_static_type.GetTypedefedType());
}
return TypeImpl();
}
TypeImpl
TypeImpl::GetDereferencedType () const
{
ModuleSP module_sp;
if (CheckModule (module_sp))
{
if (m_dynamic_type.IsValid())
{
return TypeImpl(m_static_type, m_dynamic_type.GetNonReferenceType());
}
return TypeImpl(m_static_type.GetDereferencedType());
}
return TypeImpl();
}
TypeImpl
TypeImpl::GetUnqualifiedType() const
{
ModuleSP module_sp;
if (CheckModule (module_sp))
{
if (m_dynamic_type.IsValid())
{
return TypeImpl(m_static_type, m_dynamic_type.GetFullyUnqualifiedType());
}
return TypeImpl(m_static_type.GetUnqualifiedType());
}
return TypeImpl();
}
TypeImpl
TypeImpl::GetCanonicalType() const
{
ModuleSP module_sp;
if (CheckModule (module_sp))
{
if (m_dynamic_type.IsValid())
{
return TypeImpl(m_static_type, m_dynamic_type.GetCanonicalType());
}
return TypeImpl(m_static_type.GetCanonicalType());
}
return TypeImpl();
}
ClangASTType
TypeImpl::GetClangASTType (bool prefer_dynamic)
{
ModuleSP module_sp;
if (CheckModule (module_sp))
{
if (prefer_dynamic)
{
if (m_dynamic_type.IsValid())
return m_dynamic_type;
}
return m_static_type.GetClangASTType();
}
return ClangASTType();
}
clang::ASTContext *
TypeImpl::GetClangASTContext (bool prefer_dynamic)
{
ModuleSP module_sp;
if (CheckModule (module_sp))
{
if (prefer_dynamic)
{
if (m_dynamic_type.IsValid())
return m_dynamic_type.GetASTContext();
}
return m_static_type.GetClangASTContext();
}
return NULL;
}
bool
TypeImpl::GetDescription (lldb_private::Stream &strm,
lldb::DescriptionLevel description_level)
{
ModuleSP module_sp;
if (CheckModule (module_sp))
{
if (m_dynamic_type.IsValid())
{
strm.Printf("Dynamic:\n");
m_dynamic_type.DumpTypeDescription(&strm);
strm.Printf("\nStatic:\n");
}
m_static_type.GetClangASTType().DumpTypeDescription(&strm);
}
else
{
strm.PutCString("Invalid TypeImpl module for type has been deleted\n");
}
return true;
}
TypeEnumMemberImpl::TypeEnumMemberImpl (const clang::EnumConstantDecl* enum_member_decl,
const lldb_private::ClangASTType& integer_type) :
m_integer_type_sp(),
m_name(),
m_value(),
m_valid(false)
{
if (enum_member_decl)
{
m_integer_type_sp.reset(new TypeImpl(integer_type));
m_name = ConstString(enum_member_decl->getNameAsString().c_str());
m_value = enum_member_decl->getInitVal();
m_valid = true;
}
}