|  | //===-- Variable.cpp --------------------------------------------*- C++ -*-===// | 
|  | // | 
|  | //                     The LLVM Compiler Infrastructure | 
|  | // | 
|  | // This file is distributed under the University of Illinois Open Source | 
|  | // License. See LICENSE.TXT for details. | 
|  | // | 
|  | //===----------------------------------------------------------------------===// | 
|  |  | 
|  | #include "lldb/Symbol/Variable.h" | 
|  |  | 
|  | #include "lldb/Core/Module.h" | 
|  | #include "lldb/Core/ValueObject.h" | 
|  | #include "lldb/Core/ValueObjectVariable.h" | 
|  | #include "lldb/Symbol/Block.h" | 
|  | #include "lldb/Symbol/CompileUnit.h" | 
|  | #include "lldb/Symbol/CompilerDecl.h" | 
|  | #include "lldb/Symbol/CompilerDeclContext.h" | 
|  | #include "lldb/Symbol/Function.h" | 
|  | #include "lldb/Symbol/SymbolContext.h" | 
|  | #include "lldb/Symbol/SymbolFile.h" | 
|  | #include "lldb/Symbol/Type.h" | 
|  | #include "lldb/Symbol/TypeSystem.h" | 
|  | #include "lldb/Symbol/VariableList.h" | 
|  | #include "lldb/Target/ABI.h" | 
|  | #include "lldb/Target/Process.h" | 
|  | #include "lldb/Target/RegisterContext.h" | 
|  | #include "lldb/Target/StackFrame.h" | 
|  | #include "lldb/Target/Target.h" | 
|  | #include "lldb/Target/Thread.h" | 
|  | #include "lldb/Utility/RegularExpression.h" | 
|  | #include "lldb/Utility/Stream.h" | 
|  |  | 
|  | #include "llvm/ADT/Twine.h" | 
|  |  | 
|  | using namespace lldb; | 
|  | using namespace lldb_private; | 
|  |  | 
|  | //---------------------------------------------------------------------- | 
|  | // Variable constructor | 
|  | //---------------------------------------------------------------------- | 
|  | Variable::Variable( | 
|  | lldb::user_id_t uid, const char *name, | 
|  | const char *mangled, // The mangled or fully qualified name of the variable. | 
|  | const lldb::SymbolFileTypeSP &symfile_type_sp, ValueType scope, | 
|  | SymbolContextScope *context, const RangeList &scope_range, | 
|  | Declaration *decl_ptr, const DWARFExpression &location, bool external, | 
|  | bool artificial, bool static_member) | 
|  | : UserID(uid), m_name(name), m_mangled(ConstString(mangled)), | 
|  | m_symfile_type_sp(symfile_type_sp), m_scope(scope), | 
|  | m_owner_scope(context), m_scope_range(scope_range), | 
|  | m_declaration(decl_ptr), m_location(location), m_external(external), | 
|  | m_artificial(artificial), m_static_member(static_member) {} | 
|  |  | 
|  | //---------------------------------------------------------------------- | 
|  | // Destructor | 
|  | //---------------------------------------------------------------------- | 
|  | Variable::~Variable() {} | 
|  |  | 
|  | lldb::LanguageType Variable::GetLanguage() const { | 
|  | SymbolContext variable_sc; | 
|  | m_owner_scope->CalculateSymbolContext(&variable_sc); | 
|  | if (variable_sc.comp_unit) | 
|  | return variable_sc.comp_unit->GetLanguage(); | 
|  | return lldb::eLanguageTypeUnknown; | 
|  | } | 
|  |  | 
|  | ConstString Variable::GetName() const { | 
|  | ConstString name = m_mangled.GetName(GetLanguage()); | 
|  | if (name) | 
|  | return name; | 
|  | return m_name; | 
|  | } | 
|  |  | 
|  | ConstString Variable::GetUnqualifiedName() const { return m_name; } | 
|  |  | 
|  | bool Variable::NameMatches(const ConstString &name) const { | 
|  | if (m_name == name) | 
|  | return true; | 
|  | SymbolContext variable_sc; | 
|  | m_owner_scope->CalculateSymbolContext(&variable_sc); | 
|  |  | 
|  | LanguageType language = eLanguageTypeUnknown; | 
|  | if (variable_sc.comp_unit) | 
|  | language = variable_sc.comp_unit->GetLanguage(); | 
|  | return m_mangled.NameMatches(name, language); | 
|  | } | 
|  | bool Variable::NameMatches(const RegularExpression ®ex) const { | 
|  | if (regex.Execute(m_name.AsCString())) | 
|  | return true; | 
|  | if (m_mangled) | 
|  | return m_mangled.NameMatches(regex, GetLanguage()); | 
|  | return false; | 
|  | } | 
|  |  | 
|  | Type *Variable::GetType() { | 
|  | if (m_symfile_type_sp) | 
|  | return m_symfile_type_sp->GetType(); | 
|  | return nullptr; | 
|  | } | 
|  |  | 
|  | void Variable::Dump(Stream *s, bool show_context) const { | 
|  | s->Printf("%p: ", static_cast<const void *>(this)); | 
|  | s->Indent(); | 
|  | *s << "Variable" << (const UserID &)*this; | 
|  |  | 
|  | if (m_name) | 
|  | *s << ", name = \"" << m_name << "\""; | 
|  |  | 
|  | if (m_symfile_type_sp) { | 
|  | Type *type = m_symfile_type_sp->GetType(); | 
|  | if (type) { | 
|  | *s << ", type = {" << type->GetID() << "} " << (void *)type << " ("; | 
|  | type->DumpTypeName(s); | 
|  | s->PutChar(')'); | 
|  | } | 
|  | } | 
|  |  | 
|  | if (m_scope != eValueTypeInvalid) { | 
|  | s->PutCString(", scope = "); | 
|  | switch (m_scope) { | 
|  | case eValueTypeVariableGlobal: | 
|  | s->PutCString(m_external ? "global" : "static"); | 
|  | break; | 
|  | case eValueTypeVariableArgument: | 
|  | s->PutCString("parameter"); | 
|  | break; | 
|  | case eValueTypeVariableLocal: | 
|  | s->PutCString("local"); | 
|  | break; | 
|  | case eValueTypeVariableThreadLocal: | 
|  | s->PutCString("thread local"); | 
|  | break; | 
|  | default: | 
|  | *s << "??? (" << m_scope << ')'; | 
|  | } | 
|  | } | 
|  |  | 
|  | if (show_context && m_owner_scope != nullptr) { | 
|  | s->PutCString(", context = ( "); | 
|  | m_owner_scope->DumpSymbolContext(s); | 
|  | s->PutCString(" )"); | 
|  | } | 
|  |  | 
|  | bool show_fullpaths = false; | 
|  | m_declaration.Dump(s, show_fullpaths); | 
|  |  | 
|  | if (m_location.IsValid()) { | 
|  | s->PutCString(", location = "); | 
|  | lldb::addr_t loclist_base_addr = LLDB_INVALID_ADDRESS; | 
|  | if (m_location.IsLocationList()) { | 
|  | SymbolContext variable_sc; | 
|  | m_owner_scope->CalculateSymbolContext(&variable_sc); | 
|  | if (variable_sc.function) | 
|  | loclist_base_addr = variable_sc.function->GetAddressRange() | 
|  | .GetBaseAddress() | 
|  | .GetFileAddress(); | 
|  | } | 
|  | ABI *abi = nullptr; | 
|  | if (m_owner_scope) { | 
|  | ModuleSP module_sp(m_owner_scope->CalculateSymbolContextModule()); | 
|  | if (module_sp) | 
|  | abi = ABI::FindPlugin(ProcessSP(), module_sp->GetArchitecture()).get(); | 
|  | } | 
|  | m_location.GetDescription(s, lldb::eDescriptionLevelBrief, | 
|  | loclist_base_addr, abi); | 
|  | } | 
|  |  | 
|  | if (m_external) | 
|  | s->PutCString(", external"); | 
|  |  | 
|  | if (m_artificial) | 
|  | s->PutCString(", artificial"); | 
|  |  | 
|  | s->EOL(); | 
|  | } | 
|  |  | 
|  | bool Variable::DumpDeclaration(Stream *s, bool show_fullpaths, | 
|  | bool show_module) { | 
|  | bool dumped_declaration_info = false; | 
|  | if (m_owner_scope) { | 
|  | SymbolContext sc; | 
|  | m_owner_scope->CalculateSymbolContext(&sc); | 
|  | sc.block = nullptr; | 
|  | sc.line_entry.Clear(); | 
|  | bool show_inlined_frames = false; | 
|  | const bool show_function_arguments = true; | 
|  | const bool show_function_name = true; | 
|  |  | 
|  | dumped_declaration_info = sc.DumpStopContext( | 
|  | s, nullptr, Address(), show_fullpaths, show_module, show_inlined_frames, | 
|  | show_function_arguments, show_function_name); | 
|  |  | 
|  | if (sc.function) | 
|  | s->PutChar(':'); | 
|  | } | 
|  | if (m_declaration.DumpStopContext(s, false)) | 
|  | dumped_declaration_info = true; | 
|  | return dumped_declaration_info; | 
|  | } | 
|  |  | 
|  | size_t Variable::MemorySize() const { return sizeof(Variable); } | 
|  |  | 
|  | CompilerDeclContext Variable::GetDeclContext() { | 
|  | Type *type = GetType(); | 
|  | if (type) | 
|  | return type->GetSymbolFile()->GetDeclContextContainingUID(GetID()); | 
|  | return CompilerDeclContext(); | 
|  | } | 
|  |  | 
|  | CompilerDecl Variable::GetDecl() { | 
|  | Type *type = GetType(); | 
|  | return type ? type->GetSymbolFile()->GetDeclForUID(GetID()) : CompilerDecl(); | 
|  | } | 
|  |  | 
|  | void Variable::CalculateSymbolContext(SymbolContext *sc) { | 
|  | if (m_owner_scope) { | 
|  | m_owner_scope->CalculateSymbolContext(sc); | 
|  | sc->variable = this; | 
|  | } else | 
|  | sc->Clear(false); | 
|  | } | 
|  |  | 
|  | bool Variable::LocationIsValidForFrame(StackFrame *frame) { | 
|  | // Is the variable is described by a single location? | 
|  | if (!m_location.IsLocationList()) { | 
|  | // Yes it is, the location is valid. | 
|  | return true; | 
|  | } | 
|  |  | 
|  | if (frame) { | 
|  | Function *function = | 
|  | frame->GetSymbolContext(eSymbolContextFunction).function; | 
|  | if (function) { | 
|  | TargetSP target_sp(frame->CalculateTarget()); | 
|  |  | 
|  | addr_t loclist_base_load_addr = | 
|  | function->GetAddressRange().GetBaseAddress().GetLoadAddress( | 
|  | target_sp.get()); | 
|  | if (loclist_base_load_addr == LLDB_INVALID_ADDRESS) | 
|  | return false; | 
|  | // It is a location list. We just need to tell if the location list | 
|  | // contains the current address when converted to a load address | 
|  | return m_location.LocationListContainsAddress( | 
|  | loclist_base_load_addr, | 
|  | frame->GetFrameCodeAddress().GetLoadAddress(target_sp.get())); | 
|  | } | 
|  | } | 
|  | return false; | 
|  | } | 
|  |  | 
|  | bool Variable::LocationIsValidForAddress(const Address &address) { | 
|  | // Be sure to resolve the address to section offset prior to calling this | 
|  | // function. | 
|  | if (address.IsSectionOffset()) { | 
|  | SymbolContext sc; | 
|  | CalculateSymbolContext(&sc); | 
|  | if (sc.module_sp == address.GetModule()) { | 
|  | // Is the variable is described by a single location? | 
|  | if (!m_location.IsLocationList()) { | 
|  | // Yes it is, the location is valid. | 
|  | return true; | 
|  | } | 
|  |  | 
|  | if (sc.function) { | 
|  | addr_t loclist_base_file_addr = | 
|  | sc.function->GetAddressRange().GetBaseAddress().GetFileAddress(); | 
|  | if (loclist_base_file_addr == LLDB_INVALID_ADDRESS) | 
|  | return false; | 
|  | // It is a location list. We just need to tell if the location list | 
|  | // contains the current address when converted to a load address | 
|  | return m_location.LocationListContainsAddress(loclist_base_file_addr, | 
|  | address.GetFileAddress()); | 
|  | } | 
|  | } | 
|  | } | 
|  | return false; | 
|  | } | 
|  |  | 
|  | bool Variable::IsInScope(StackFrame *frame) { | 
|  | switch (m_scope) { | 
|  | case eValueTypeRegister: | 
|  | case eValueTypeRegisterSet: | 
|  | return frame != nullptr; | 
|  |  | 
|  | case eValueTypeConstResult: | 
|  | case eValueTypeVariableGlobal: | 
|  | case eValueTypeVariableStatic: | 
|  | case eValueTypeVariableThreadLocal: | 
|  | return true; | 
|  |  | 
|  | case eValueTypeVariableArgument: | 
|  | case eValueTypeVariableLocal: | 
|  | if (frame) { | 
|  | // We don't have a location list, we just need to see if the block that | 
|  | // this variable was defined in is currently | 
|  | Block *deepest_frame_block = | 
|  | frame->GetSymbolContext(eSymbolContextBlock).block; | 
|  | if (deepest_frame_block) { | 
|  | SymbolContext variable_sc; | 
|  | CalculateSymbolContext(&variable_sc); | 
|  |  | 
|  | // Check for static or global variable defined at the compile unit | 
|  | // level that wasn't defined in a block | 
|  | if (variable_sc.block == nullptr) | 
|  | return true; | 
|  |  | 
|  | // Check if the variable is valid in the current block | 
|  | if (variable_sc.block != deepest_frame_block && | 
|  | !variable_sc.block->Contains(deepest_frame_block)) | 
|  | return false; | 
|  |  | 
|  | // If no scope range is specified then it means that the scope is the | 
|  | // same as the scope of the enclosing lexical block. | 
|  | if (m_scope_range.IsEmpty()) | 
|  | return true; | 
|  |  | 
|  | addr_t file_address = frame->GetFrameCodeAddress().GetFileAddress(); | 
|  | return m_scope_range.FindEntryThatContains(file_address) != nullptr; | 
|  | } | 
|  | } | 
|  | break; | 
|  |  | 
|  | default: | 
|  | break; | 
|  | } | 
|  | return false; | 
|  | } | 
|  |  | 
|  | Status Variable::GetValuesForVariableExpressionPath( | 
|  | llvm::StringRef variable_expr_path, ExecutionContextScope *scope, | 
|  | GetVariableCallback callback, void *baton, VariableList &variable_list, | 
|  | ValueObjectList &valobj_list) { | 
|  | Status error; | 
|  | if (!callback || variable_expr_path.empty()) { | 
|  | error.SetErrorString("unknown error"); | 
|  | return error; | 
|  | } | 
|  |  | 
|  | switch (variable_expr_path.front()) { | 
|  | case '*': | 
|  | error = Variable::GetValuesForVariableExpressionPath( | 
|  | variable_expr_path.drop_front(), scope, callback, baton, variable_list, | 
|  | valobj_list); | 
|  | if (error.Fail()) { | 
|  | error.SetErrorString("unknown error"); | 
|  | return error; | 
|  | } | 
|  | for (uint32_t i = 0; i < valobj_list.GetSize();) { | 
|  | Status tmp_error; | 
|  | ValueObjectSP valobj_sp( | 
|  | valobj_list.GetValueObjectAtIndex(i)->Dereference(tmp_error)); | 
|  | if (tmp_error.Fail()) { | 
|  | variable_list.RemoveVariableAtIndex(i); | 
|  | valobj_list.RemoveValueObjectAtIndex(i); | 
|  | } else { | 
|  | valobj_list.SetValueObjectAtIndex(i, valobj_sp); | 
|  | ++i; | 
|  | } | 
|  | } | 
|  | return error; | 
|  | case '&': { | 
|  | error = Variable::GetValuesForVariableExpressionPath( | 
|  | variable_expr_path.drop_front(), scope, callback, baton, variable_list, | 
|  | valobj_list); | 
|  | if (error.Success()) { | 
|  | for (uint32_t i = 0; i < valobj_list.GetSize();) { | 
|  | Status tmp_error; | 
|  | ValueObjectSP valobj_sp( | 
|  | valobj_list.GetValueObjectAtIndex(i)->AddressOf(tmp_error)); | 
|  | if (tmp_error.Fail()) { | 
|  | variable_list.RemoveVariableAtIndex(i); | 
|  | valobj_list.RemoveValueObjectAtIndex(i); | 
|  | } else { | 
|  | valobj_list.SetValueObjectAtIndex(i, valobj_sp); | 
|  | ++i; | 
|  | } | 
|  | } | 
|  | } else { | 
|  | error.SetErrorString("unknown error"); | 
|  | } | 
|  | return error; | 
|  | } break; | 
|  |  | 
|  | default: { | 
|  | static RegularExpression g_regex( | 
|  | llvm::StringRef("^([A-Za-z_:][A-Za-z_0-9:]*)(.*)")); | 
|  | RegularExpression::Match regex_match(1); | 
|  | std::string variable_name; | 
|  | variable_list.Clear(); | 
|  | if (!g_regex.Execute(variable_expr_path, ®ex_match)) { | 
|  | error.SetErrorStringWithFormat( | 
|  | "unable to extract a variable name from '%s'", | 
|  | variable_expr_path.str().c_str()); | 
|  | return error; | 
|  | } | 
|  | if (!regex_match.GetMatchAtIndex(variable_expr_path, 1, variable_name)) { | 
|  | error.SetErrorStringWithFormat( | 
|  | "unable to extract a variable name from '%s'", | 
|  | variable_expr_path.str().c_str()); | 
|  | return error; | 
|  | } | 
|  | if (!callback(baton, variable_name.c_str(), variable_list)) { | 
|  | error.SetErrorString("unknown error"); | 
|  | return error; | 
|  | } | 
|  | uint32_t i = 0; | 
|  | while (i < variable_list.GetSize()) { | 
|  | VariableSP var_sp(variable_list.GetVariableAtIndex(i)); | 
|  | ValueObjectSP valobj_sp; | 
|  | if (!var_sp) { | 
|  | variable_list.RemoveVariableAtIndex(i); | 
|  | continue; | 
|  | } | 
|  | ValueObjectSP variable_valobj_sp( | 
|  | ValueObjectVariable::Create(scope, var_sp)); | 
|  | if (!variable_valobj_sp) { | 
|  | variable_list.RemoveVariableAtIndex(i); | 
|  | continue; | 
|  | } | 
|  |  | 
|  | llvm::StringRef variable_sub_expr_path = | 
|  | variable_expr_path.drop_front(variable_name.size()); | 
|  | if (!variable_sub_expr_path.empty()) { | 
|  | valobj_sp = variable_valobj_sp->GetValueForExpressionPath( | 
|  | variable_sub_expr_path); | 
|  | if (!valobj_sp) { | 
|  | error.SetErrorStringWithFormat( | 
|  | "invalid expression path '%s' for variable '%s'", | 
|  | variable_sub_expr_path.str().c_str(), | 
|  | var_sp->GetName().GetCString()); | 
|  | variable_list.RemoveVariableAtIndex(i); | 
|  | continue; | 
|  | } | 
|  | } else { | 
|  | // Just the name of a variable with no extras | 
|  | valobj_sp = variable_valobj_sp; | 
|  | } | 
|  |  | 
|  | valobj_list.Append(valobj_sp); | 
|  | ++i; | 
|  | } | 
|  |  | 
|  | if (variable_list.GetSize() > 0) { | 
|  | error.Clear(); | 
|  | return error; | 
|  | } | 
|  | } break; | 
|  | } | 
|  | error.SetErrorString("unknown error"); | 
|  | return error; | 
|  | } | 
|  |  | 
|  | bool Variable::DumpLocationForAddress(Stream *s, const Address &address) { | 
|  | // Be sure to resolve the address to section offset prior to calling this | 
|  | // function. | 
|  | if (address.IsSectionOffset()) { | 
|  | SymbolContext sc; | 
|  | CalculateSymbolContext(&sc); | 
|  | if (sc.module_sp == address.GetModule()) { | 
|  | ABI *abi = nullptr; | 
|  | if (m_owner_scope) { | 
|  | ModuleSP module_sp(m_owner_scope->CalculateSymbolContextModule()); | 
|  | if (module_sp) | 
|  | abi = ABI::FindPlugin(ProcessSP(), module_sp->GetArchitecture()).get(); | 
|  | } | 
|  |  | 
|  | const addr_t file_addr = address.GetFileAddress(); | 
|  | if (sc.function) { | 
|  | if (sc.function->GetAddressRange().ContainsFileAddress(address)) { | 
|  | addr_t loclist_base_file_addr = | 
|  | sc.function->GetAddressRange().GetBaseAddress().GetFileAddress(); | 
|  | if (loclist_base_file_addr == LLDB_INVALID_ADDRESS) | 
|  | return false; | 
|  | return m_location.DumpLocationForAddress(s, eDescriptionLevelBrief, | 
|  | loclist_base_file_addr, | 
|  | file_addr, abi); | 
|  | } | 
|  | } | 
|  | return m_location.DumpLocationForAddress( | 
|  | s, eDescriptionLevelBrief, LLDB_INVALID_ADDRESS, file_addr, abi); | 
|  | } | 
|  | } | 
|  | return false; | 
|  | } | 
|  |  | 
|  | static void PrivateAutoComplete( | 
|  | StackFrame *frame, llvm::StringRef partial_path, | 
|  | const llvm::Twine | 
|  | &prefix_path, // Anything that has been resolved already will be in here | 
|  | const CompilerType &compiler_type, | 
|  | StringList &matches, bool &word_complete); | 
|  |  | 
|  | static void PrivateAutoCompleteMembers( | 
|  | StackFrame *frame, const std::string &partial_member_name, | 
|  | llvm::StringRef partial_path, | 
|  | const llvm::Twine | 
|  | &prefix_path, // Anything that has been resolved already will be in here | 
|  | const CompilerType &compiler_type, | 
|  | StringList &matches, bool &word_complete); | 
|  |  | 
|  | static void PrivateAutoCompleteMembers( | 
|  | StackFrame *frame, const std::string &partial_member_name, | 
|  | llvm::StringRef partial_path, | 
|  | const llvm::Twine | 
|  | &prefix_path, // Anything that has been resolved already will be in here | 
|  | const CompilerType &compiler_type, | 
|  | StringList &matches, bool &word_complete) { | 
|  |  | 
|  | // We are in a type parsing child members | 
|  | const uint32_t num_bases = compiler_type.GetNumDirectBaseClasses(); | 
|  |  | 
|  | if (num_bases > 0) { | 
|  | for (uint32_t i = 0; i < num_bases; ++i) { | 
|  | CompilerType base_class_type = | 
|  | compiler_type.GetDirectBaseClassAtIndex(i, nullptr); | 
|  |  | 
|  | PrivateAutoCompleteMembers( | 
|  | frame, partial_member_name, partial_path, prefix_path, | 
|  | base_class_type.GetCanonicalType(), matches, word_complete); | 
|  | } | 
|  | } | 
|  |  | 
|  | const uint32_t num_vbases = compiler_type.GetNumVirtualBaseClasses(); | 
|  |  | 
|  | if (num_vbases > 0) { | 
|  | for (uint32_t i = 0; i < num_vbases; ++i) { | 
|  | CompilerType vbase_class_type = | 
|  | compiler_type.GetVirtualBaseClassAtIndex(i, nullptr); | 
|  |  | 
|  | PrivateAutoCompleteMembers( | 
|  | frame, partial_member_name, partial_path, prefix_path, | 
|  | vbase_class_type.GetCanonicalType(), matches, word_complete); | 
|  | } | 
|  | } | 
|  |  | 
|  | // We are in a type parsing child members | 
|  | const uint32_t num_fields = compiler_type.GetNumFields(); | 
|  |  | 
|  | if (num_fields > 0) { | 
|  | for (uint32_t i = 0; i < num_fields; ++i) { | 
|  | std::string member_name; | 
|  |  | 
|  | CompilerType member_compiler_type = compiler_type.GetFieldAtIndex( | 
|  | i, member_name, nullptr, nullptr, nullptr); | 
|  |  | 
|  | if (partial_member_name.empty() || | 
|  | member_name.find(partial_member_name) == 0) { | 
|  | if (member_name == partial_member_name) { | 
|  | PrivateAutoComplete( | 
|  | frame, partial_path, | 
|  | prefix_path + member_name, // Anything that has been resolved | 
|  | // already will be in here | 
|  | member_compiler_type.GetCanonicalType(), matches, word_complete); | 
|  | } else { | 
|  | matches.AppendString((prefix_path + member_name).str()); | 
|  | } | 
|  | } | 
|  | } | 
|  | } | 
|  | } | 
|  |  | 
|  | static void PrivateAutoComplete( | 
|  | StackFrame *frame, llvm::StringRef partial_path, | 
|  | const llvm::Twine | 
|  | &prefix_path, // Anything that has been resolved already will be in here | 
|  | const CompilerType &compiler_type, | 
|  | StringList &matches, bool &word_complete) { | 
|  | //    printf ("\nPrivateAutoComplete()\n\tprefix_path = '%s'\n\tpartial_path = | 
|  | //    '%s'\n", prefix_path.c_str(), partial_path.c_str()); | 
|  | std::string remaining_partial_path; | 
|  |  | 
|  | const lldb::TypeClass type_class = compiler_type.GetTypeClass(); | 
|  | if (partial_path.empty()) { | 
|  | if (compiler_type.IsValid()) { | 
|  | switch (type_class) { | 
|  | default: | 
|  | case eTypeClassArray: | 
|  | case eTypeClassBlockPointer: | 
|  | case eTypeClassBuiltin: | 
|  | case eTypeClassComplexFloat: | 
|  | case eTypeClassComplexInteger: | 
|  | case eTypeClassEnumeration: | 
|  | case eTypeClassFunction: | 
|  | case eTypeClassMemberPointer: | 
|  | case eTypeClassReference: | 
|  | case eTypeClassTypedef: | 
|  | case eTypeClassVector: { | 
|  | matches.AppendString(prefix_path.str()); | 
|  | word_complete = matches.GetSize() == 1; | 
|  | } break; | 
|  |  | 
|  | case eTypeClassClass: | 
|  | case eTypeClassStruct: | 
|  | case eTypeClassUnion: | 
|  | if (prefix_path.str().back() != '.') | 
|  | matches.AppendString((prefix_path + ".").str()); | 
|  | break; | 
|  |  | 
|  | case eTypeClassObjCObject: | 
|  | case eTypeClassObjCInterface: | 
|  | break; | 
|  | case eTypeClassObjCObjectPointer: | 
|  | case eTypeClassPointer: { | 
|  | bool omit_empty_base_classes = true; | 
|  | if (compiler_type.GetNumChildren(omit_empty_base_classes) > 0) | 
|  | matches.AppendString((prefix_path + "->").str()); | 
|  | else { | 
|  | matches.AppendString(prefix_path.str()); | 
|  | word_complete = true; | 
|  | } | 
|  | } break; | 
|  | } | 
|  | } else { | 
|  | if (frame) { | 
|  | const bool get_file_globals = true; | 
|  |  | 
|  | VariableList *variable_list = frame->GetVariableList(get_file_globals); | 
|  |  | 
|  | if (variable_list) { | 
|  | const size_t num_variables = variable_list->GetSize(); | 
|  | for (size_t i = 0; i < num_variables; ++i) { | 
|  | Variable *variable = variable_list->GetVariableAtIndex(i).get(); | 
|  | matches.AppendString(variable->GetName().AsCString()); | 
|  | } | 
|  | } | 
|  | } | 
|  | } | 
|  | } else { | 
|  | const char ch = partial_path[0]; | 
|  | switch (ch) { | 
|  | case '*': | 
|  | if (prefix_path.str().empty()) { | 
|  | PrivateAutoComplete(frame, partial_path.substr(1), "*", compiler_type, | 
|  | matches, word_complete); | 
|  | } | 
|  | break; | 
|  |  | 
|  | case '&': | 
|  | if (prefix_path.isTriviallyEmpty()) { | 
|  | PrivateAutoComplete(frame, partial_path.substr(1), std::string("&"), | 
|  | compiler_type, matches, word_complete); | 
|  | } | 
|  | break; | 
|  |  | 
|  | case '-': | 
|  | if (partial_path[1] == '>' && !prefix_path.str().empty()) { | 
|  | switch (type_class) { | 
|  | case lldb::eTypeClassPointer: { | 
|  | CompilerType pointee_type(compiler_type.GetPointeeType()); | 
|  | if (partial_path[2]) { | 
|  | // If there is more after the "->", then search deeper | 
|  | PrivateAutoComplete( | 
|  | frame, partial_path.substr(2), prefix_path + "->", | 
|  | pointee_type.GetCanonicalType(), matches, word_complete); | 
|  | } else { | 
|  | // Nothing after the "->", so list all members | 
|  | PrivateAutoCompleteMembers( | 
|  | frame, std::string(), std::string(), prefix_path + "->", | 
|  | pointee_type.GetCanonicalType(), matches, word_complete); | 
|  | } | 
|  | } break; | 
|  | default: | 
|  | break; | 
|  | } | 
|  | } | 
|  | break; | 
|  |  | 
|  | case '.': | 
|  | if (compiler_type.IsValid()) { | 
|  | switch (type_class) { | 
|  | case lldb::eTypeClassUnion: | 
|  | case lldb::eTypeClassStruct: | 
|  | case lldb::eTypeClassClass: | 
|  | if (partial_path[1]) { | 
|  | // If there is more after the ".", then search deeper | 
|  | PrivateAutoComplete(frame, partial_path.substr(1), | 
|  | prefix_path + ".", compiler_type, matches, | 
|  | word_complete); | 
|  |  | 
|  | } else { | 
|  | // Nothing after the ".", so list all members | 
|  | PrivateAutoCompleteMembers(frame, std::string(), partial_path, | 
|  | prefix_path + ".", compiler_type, | 
|  | matches, word_complete); | 
|  | } | 
|  | break; | 
|  | default: | 
|  | break; | 
|  | } | 
|  | } | 
|  | break; | 
|  | default: | 
|  | if (isalpha(ch) || ch == '_' || ch == '$') { | 
|  | const size_t partial_path_len = partial_path.size(); | 
|  | size_t pos = 1; | 
|  | while (pos < partial_path_len) { | 
|  | const char curr_ch = partial_path[pos]; | 
|  | if (isalnum(curr_ch) || curr_ch == '_' || curr_ch == '$') { | 
|  | ++pos; | 
|  | continue; | 
|  | } | 
|  | break; | 
|  | } | 
|  |  | 
|  | std::string token(partial_path, 0, pos); | 
|  | remaining_partial_path = partial_path.substr(pos); | 
|  |  | 
|  | if (compiler_type.IsValid()) { | 
|  | PrivateAutoCompleteMembers(frame, token, remaining_partial_path, | 
|  | prefix_path, compiler_type, matches, | 
|  | word_complete); | 
|  | } else if (frame) { | 
|  | // We haven't found our variable yet | 
|  | const bool get_file_globals = true; | 
|  |  | 
|  | VariableList *variable_list = | 
|  | frame->GetVariableList(get_file_globals); | 
|  |  | 
|  | if (!variable_list) | 
|  | break; | 
|  |  | 
|  | const size_t num_variables = variable_list->GetSize(); | 
|  | for (size_t i = 0; i < num_variables; ++i) { | 
|  | Variable *variable = variable_list->GetVariableAtIndex(i).get(); | 
|  |  | 
|  | if (!variable) | 
|  | continue; | 
|  |  | 
|  | const char *variable_name = variable->GetName().AsCString(); | 
|  | if (strstr(variable_name, token.c_str()) == variable_name) { | 
|  | if (strcmp(variable_name, token.c_str()) == 0) { | 
|  | Type *variable_type = variable->GetType(); | 
|  | if (variable_type) { | 
|  | CompilerType variable_compiler_type( | 
|  | variable_type->GetForwardCompilerType()); | 
|  | PrivateAutoComplete( | 
|  | frame, remaining_partial_path, | 
|  | prefix_path + token, // Anything that has been resolved | 
|  | // already will be in here | 
|  | variable_compiler_type.GetCanonicalType(), matches, | 
|  | word_complete); | 
|  | } else { | 
|  | matches.AppendString((prefix_path + variable_name).str()); | 
|  | } | 
|  | } else if (remaining_partial_path.empty()) { | 
|  | matches.AppendString((prefix_path + variable_name).str()); | 
|  | } | 
|  | } | 
|  | } | 
|  | } | 
|  | } | 
|  | break; | 
|  | } | 
|  | } | 
|  | } | 
|  |  | 
|  | size_t Variable::AutoComplete(const ExecutionContext &exe_ctx, | 
|  | CompletionRequest &request) { | 
|  | CompilerType compiler_type; | 
|  |  | 
|  | bool word_complete = false; | 
|  | StringList matches; | 
|  | PrivateAutoComplete(exe_ctx.GetFramePtr(), request.GetCursorArgumentPrefix(), | 
|  | "", compiler_type, matches, word_complete); | 
|  | request.SetWordComplete(word_complete); | 
|  | request.AddCompletions(matches); | 
|  |  | 
|  | return request.GetNumberOfMatches(); | 
|  | } |