source/Commands/CommandObjectFrame.cpp

   1 //===-- CommandObjectFrame.cpp ----------------------------------*- C++ -*-===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10 // C Includes
  11 // C++ Includes
  12 #include <string>
  13
  14 // Other libraries and framework includes
  15 // Project includes
  16 #include "CommandObjectFrame.h"
  17 #include "lldb/Core/Debugger.h"
  18 #include "lldb/Core/Module.h"
  19 #include "lldb/Core/StreamFile.h"
  20 #include "lldb/Core/StreamString.h"
  21 #include "lldb/Core/Timer.h"
  22 #include "lldb/Core/Value.h"
  23 #include "lldb/Core/ValueObject.h"
  24 #include "lldb/Core/ValueObjectVariable.h"
  25 #include "lldb/DataFormatters/DataVisualization.h"
  26 #include "lldb/DataFormatters/ValueObjectPrinter.h"
  27 #include "lldb/Host/Host.h"
  28 #include "lldb/Host/StringConvert.h"
  29 #include "lldb/Interpreter/Args.h"
  30 #include "lldb/Interpreter/CommandInterpreter.h"
  31 #include "lldb/Interpreter/CommandReturnObject.h"
  32 #include "lldb/Interpreter/Options.h"
  33 #include "lldb/Interpreter/OptionGroupFormat.h"
  34 #include "lldb/Interpreter/OptionGroupValueObjectDisplay.h"
  35 #include "lldb/Interpreter/OptionGroupVariable.h"
  36 #include "lldb/Symbol/CompilerType.h"
  37 #include "lldb/Symbol/ClangASTContext.h"
  38 #include "lldb/Symbol/Function.h"
  39 #include "lldb/Symbol/ObjectFile.h"
  40 #include "lldb/Symbol/SymbolContext.h"
  41 #include "lldb/Symbol/Type.h"
  42 #include "lldb/Symbol/Variable.h"
  43 #include "lldb/Symbol/VariableList.h"
  44 #include "lldb/Target/Process.h"
  45 #include "lldb/Target/StackFrame.h"
  46 #include "lldb/Target/Thread.h"
  47 #include "lldb/Target/Target.h"
  48
  49 using namespace lldb;
  50 using namespace lldb_private;
  51
  52 #pragma mark CommandObjectFrameInfo
  53
  54 //-------------------------------------------------------------------------
  55 // CommandObjectFrameInfo
  56 //-------------------------------------------------------------------------
  57
  58 class CommandObjectFrameInfo : public CommandObjectParsed
  59 {
  60 public:
  61     CommandObjectFrameInfo(CommandInterpreter &interpreter)
  62         : CommandObjectParsed(interpreter, "frame info",
  63                               "List information about the current stack frame in the current thread.", "frame info",
  64                               eCommandRequiresFrame | eCommandTryTargetAPILock | eCommandProcessMustBeLaunched |
  65                                   eCommandProcessMustBePaused)
  66     {
  67     }
  68
  69     ~CommandObjectFrameInfo() override = default;
  70
  71 protected:
  72     bool
  73     DoExecute (Args& command, CommandReturnObject &result) override
  74     {
  75         m_exe_ctx.GetFrameRef().DumpUsingSettingsFormat (&result.GetOutputStream());
  76         result.SetStatus (eReturnStatusSuccessFinishResult);
  77         return result.Succeeded();
  78     }
  79 };
  80
  81 #pragma mark CommandObjectFrameSelect
  82
  83 //-------------------------------------------------------------------------
  84 // CommandObjectFrameSelect
  85 //-------------------------------------------------------------------------
  86
  87 class CommandObjectFrameSelect : public CommandObjectParsed
  88 {
  89 public:
  90     class CommandOptions : public Options
  91     {
  92     public:
  93         CommandOptions (CommandInterpreter &interpreter) :
  94             Options(interpreter)
  95         {
  96             OptionParsingStarting ();
  97         }
  98
  99         ~CommandOptions() override = default;
 100
 101         Error
 102         SetOptionValue (uint32_t option_idx, const char *option_arg) override
 103         {
 104             Error error;
 105             bool success = false;
 106             const int short_option = m_getopt_table[option_idx].val;
 107             switch (short_option)
 108             {
 109             case 'r':
 110                 relative_frame_offset = StringConvert::ToSInt32 (option_arg, INT32_MIN, 0, &success);
 111                 if (!success)
 112                     error.SetErrorStringWithFormat ("invalid frame offset argument '%s'", option_arg);
 113                 break;
 114
 115             default:
 116                 error.SetErrorStringWithFormat ("invalid short option character '%c'", short_option);
 117                 break;
 118             }
 119
 120             return error;
 121         }
 122
 123         void
 124         OptionParsingStarting () override
 125         {
 126             relative_frame_offset = INT32_MIN;
 127         }
 128
 129         const OptionDefinition*
 130         GetDefinitions () override
 131         {
 132             return g_option_table;
 133         }
 134
 135         // Options table: Required for subclasses of Options.
 136
 137         static OptionDefinition g_option_table[];
 138         int32_t relative_frame_offset;
 139     };
 140
 141     CommandObjectFrameSelect(CommandInterpreter &interpreter)
 142         : CommandObjectParsed(
 143               interpreter, "frame select",
 144               "Select the current stack frame by index from within the current thread (see 'thread backtrace'.)",
 145               nullptr, eCommandRequiresThread | eCommandTryTargetAPILock | eCommandProcessMustBeLaunched |
 146                            eCommandProcessMustBePaused),
 147           m_options(interpreter)
 148     {
 149         CommandArgumentEntry arg;
 150         CommandArgumentData index_arg;
 151
 152         // Define the first (and only) variant of this arg.
 153         index_arg.arg_type = eArgTypeFrameIndex;
 154         index_arg.arg_repetition = eArgRepeatOptional;
 155
 156         // There is only one variant this argument could be; put it into the argument entry.
 157         arg.push_back (index_arg);
 158
 159         // Push the data for the first argument into the m_arguments vector.
 160         m_arguments.push_back (arg);
 161     }
 162
 163     ~CommandObjectFrameSelect() override = default;
 164
 165     Options *
 166     GetOptions () override
 167     {
 168         return &m_options;
 169     }
 170
 171 protected:
 172     bool
 173     DoExecute (Args& command, CommandReturnObject &result) override
 174     {
 175         // No need to check "thread" for validity as eCommandRequiresThread ensures it is valid
 176         Thread *thread = m_exe_ctx.GetThreadPtr();
 177
 178         uint32_t frame_idx = UINT32_MAX;
 179         if (m_options.relative_frame_offset != INT32_MIN)
 180         {
 181             // The one and only argument is a signed relative frame index
 182             frame_idx = thread->GetSelectedFrameIndex ();
 183             if (frame_idx == UINT32_MAX)
 184                 frame_idx = 0;
 185
 186             if (m_options.relative_frame_offset < 0)
 187             {
 188                 if (static_cast<int32_t>(frame_idx) >= -m_options.relative_frame_offset)
 189                     frame_idx += m_options.relative_frame_offset;
 190                 else
 191                 {
 192                     if (frame_idx == 0)
 193                     {
 194                         //If you are already at the bottom of the stack, then just warn and don't reset the frame.
 195                         result.AppendError("Already at the bottom of the stack.");
 196                         result.SetStatus(eReturnStatusFailed);
 197                         return false;
 198                     }
 199                     else
 200                         frame_idx = 0;
 201                 }
 202             }
 203             else if (m_options.relative_frame_offset > 0)
 204             {
 205                 // I don't want "up 20" where "20" takes you past the top of the stack to produce
 206                 // an error, but rather to just go to the top.  So I have to count the stack here...
 207                 const uint32_t num_frames = thread->GetStackFrameCount();
 208                 if (static_cast<int32_t>(num_frames - frame_idx) > m_options.relative_frame_offset)
 209                     frame_idx += m_options.relative_frame_offset;
 210                 else
 211                 {
 212                     if (frame_idx == num_frames - 1)
 213                     {
 214                         //If we are already at the top of the stack, just warn and don't reset the frame.
 215                         result.AppendError("Already at the top of the stack.");
 216                         result.SetStatus(eReturnStatusFailed);
 217                         return false;
 218                     }
 219                     else
 220                         frame_idx = num_frames - 1;
 221                 }
 222             }
 223         }
 224         else
 225         {
 226             if (command.GetArgumentCount() == 1)
 227             {
 228                 const char *frame_idx_cstr = command.GetArgumentAtIndex(0);
 229                 bool success = false;
 230                 frame_idx = StringConvert::ToUInt32 (frame_idx_cstr, UINT32_MAX, 0, &success);
 231                 if (!success)
 232                 {
 233                     result.AppendErrorWithFormat("invalid frame index argument '%s'.", frame_idx_cstr);
 234                     result.SetStatus (eReturnStatusFailed);
 235                     return false;
 236                 }
 237             }
 238             else if (command.GetArgumentCount() == 0)
 239             {
 240                 frame_idx = thread->GetSelectedFrameIndex ();
 241                 if (frame_idx == UINT32_MAX)
 242                 {
 243                     frame_idx = 0;
 244                 }
 245             }
 246             else
 247             {
 248                 result.AppendErrorWithFormat ("too many arguments; expected frame-index, saw '%s'.\n",
 249                                               command.GetArgumentAtIndex(0));
 250                 m_options.GenerateOptionUsage (result.GetErrorStream(), this);
 251                 return false;
 252             }
 253         }
 254
 255         bool success = thread->SetSelectedFrameByIndexNoisily (frame_idx, result.GetOutputStream());
 256         if (success)
 257         {
 258             m_exe_ctx.SetFrameSP(thread->GetSelectedFrame ());
 259             result.SetStatus (eReturnStatusSuccessFinishResult);
 260         }
 261         else
 262         {
 263             result.AppendErrorWithFormat ("Frame index (%u) out of range.\n", frame_idx);
 264             result.SetStatus (eReturnStatusFailed);
 265         }
 266
 267         return result.Succeeded();
 268     }
 269
 270 protected:
 271     CommandOptions m_options;
 272 };
 273
 274 OptionDefinition
 275 CommandObjectFrameSelect::CommandOptions::g_option_table[] =
 276 {
 277     { LLDB_OPT_SET_1, false, "relative", 'r', OptionParser::eRequiredArgument, nullptr, nullptr, 0, eArgTypeOffset, "A relative frame index offset from the current frame index."},
 278     { 0, false, nullptr, 0, 0, nullptr, nullptr, 0, eArgTypeNone, nullptr }
 279 };
 280
 281 #pragma mark CommandObjectFrameVariable
 282 //----------------------------------------------------------------------
 283 // List images with associated information
 284 //----------------------------------------------------------------------
 285 class CommandObjectFrameVariable : public CommandObjectParsed
 286 {
 287 public:
 288     CommandObjectFrameVariable(CommandInterpreter &interpreter)
 289         : CommandObjectParsed(
 290               interpreter, "frame variable", "Show variables for the current stack frame. Defaults to all "
 291                                              "arguments and local variables in scope. Names of argument, "
 292                                              "local, file static and file global variables can be specified. "
 293                                              "Children of aggregate variables can be specified such as "
 294                                              "'var->child.x'.",
 295               nullptr, eCommandRequiresFrame | eCommandTryTargetAPILock | eCommandProcessMustBeLaunched |
 296                            eCommandProcessMustBePaused | eCommandRequiresProcess),
 297           m_option_group(interpreter),
 298           m_option_variable(true), // Include the frame specific options by passing "true"
 299           m_option_format(eFormatDefault),
 300           m_varobj_options()
 301     {
 302         CommandArgumentEntry arg;
 303         CommandArgumentData var_name_arg;
 304
 305         // Define the first (and only) variant of this arg.
 306         var_name_arg.arg_type = eArgTypeVarName;
 307         var_name_arg.arg_repetition = eArgRepeatStar;
 308
 309         // There is only one variant this argument could be; put it into the argument entry.
 310         arg.push_back (var_name_arg);
 311
 312         // Push the data for the first argument into the m_arguments vector.
 313         m_arguments.push_back (arg);
 314
 315         m_option_group.Append (&m_option_variable, LLDB_OPT_SET_ALL, LLDB_OPT_SET_1);
 316         m_option_group.Append (&m_option_format, OptionGroupFormat::OPTION_GROUP_FORMAT | OptionGroupFormat::OPTION_GROUP_GDB_FMT, LLDB_OPT_SET_1);
 317         m_option_group.Append (&m_varobj_options, LLDB_OPT_SET_ALL, LLDB_OPT_SET_1);
 318         m_option_group.Finalize();
 319     }
 320
 321     ~CommandObjectFrameVariable() override = default;
 322
 323     Options *
 324     GetOptions () override
 325     {
 326         return &m_option_group;
 327     }
 328
 329     int
 330     HandleArgumentCompletion (Args &input,
 331                               int &cursor_index,
 332                               int &cursor_char_position,
 333                               OptionElementVector &opt_element_vector,
 334                               int match_start_point,
 335                               int max_return_elements,
 336                               bool &word_complete,
 337                               StringList &matches) override
 338     {
 339         // Arguments are the standard source file completer.
 340         std::string completion_str (input.GetArgumentAtIndex(cursor_index));
 341         completion_str.erase (cursor_char_position);
 342
 343         CommandCompletions::InvokeCommonCompletionCallbacks(m_interpreter,
 344                                                             CommandCompletions::eVariablePathCompletion,
 345                                                             completion_str.c_str(),
 346                                                             match_start_point,
 347                                                             max_return_elements,
 348                                                             nullptr,
 349                                                             word_complete,
 350                                                             matches);
 351         return matches.GetSize();
 352     }
 353
 354 protected:
 355     bool
 356     DoExecute (Args& command, CommandReturnObject &result) override
 357     {
 358         // No need to check "frame" for validity as eCommandRequiresFrame ensures it is valid
 359         StackFrame *frame = m_exe_ctx.GetFramePtr();
 360
 361         Stream &s = result.GetOutputStream();
 362
 363         // Be careful about the stack frame, if any summary formatter runs code, it might clear the StackFrameList
 364         // for the thread.  So hold onto a shared pointer to the frame so it stays alive.
 365
 366         VariableList *variable_list = frame->GetVariableList (m_option_variable.show_globals);
 367
 368         VariableSP var_sp;
 369         ValueObjectSP valobj_sp;
 370
 371         const char *name_cstr = nullptr;
 372         size_t idx;
 373
 374         TypeSummaryImplSP summary_format_sp;
 375         if (!m_option_variable.summary.IsCurrentValueEmpty())
 376             DataVisualization::NamedSummaryFormats::GetSummaryFormat(ConstString(m_option_variable.summary.GetCurrentValue()), summary_format_sp);
 377         else if (!m_option_variable.summary_string.IsCurrentValueEmpty())
 378             summary_format_sp.reset(new StringSummaryFormat(TypeSummaryImpl::Flags(),m_option_variable.summary_string.GetCurrentValue()));
 379
 380         DumpValueObjectOptions options(m_varobj_options.GetAsDumpOptions(eLanguageRuntimeDescriptionDisplayVerbosityFull,eFormatDefault,summary_format_sp));
 381
 382         const SymbolContext& sym_ctx = frame->GetSymbolContext(eSymbolContextFunction);
 383         if (sym_ctx.function && sym_ctx.function->IsTopLevelFunction())
 384             m_option_variable.show_globals = true;
 385
 386         if (variable_list)
 387         {
 388             const Format format = m_option_format.GetFormat();
 389             options.SetFormat(format);
 390
 391             if (command.GetArgumentCount() > 0)
 392             {
 393                 VariableList regex_var_list;
 394
 395                 // If we have any args to the variable command, we will make
 396                 // variable objects from them...
 397                 for (idx = 0; (name_cstr = command.GetArgumentAtIndex(idx)) != nullptr; ++idx)
 398                 {
 399                     if (m_option_variable.use_regex)
 400                     {
 401                         const size_t regex_start_index = regex_var_list.GetSize();
 402                         RegularExpression regex (name_cstr);
 403                         if (regex.Compile(name_cstr))
 404                         {
 405                             size_t num_matches = 0;
 406                             const size_t num_new_regex_vars = variable_list->AppendVariablesIfUnique(regex,
 407                                                                                                      regex_var_list,
 408                                                                                                      num_matches);
 409                             if (num_new_regex_vars > 0)
 410                             {
 411                                 for (size_t regex_idx = regex_start_index, end_index = regex_var_list.GetSize();
 412                                      regex_idx < end_index;
 413                                      ++regex_idx)
 414                                 {
 415                                     var_sp = regex_var_list.GetVariableAtIndex (regex_idx);
 416                                     if (var_sp)
 417                                     {
 418                                         valobj_sp = frame->GetValueObjectForFrameVariable (var_sp, m_varobj_options.use_dynamic);
 419                                         if (valobj_sp)
 420                                         {
 421 //                                            if (format != eFormatDefault)
 422 //                                                valobj_sp->SetFormat (format);
 423
 424                                             if (m_option_variable.show_decl && var_sp->GetDeclaration ().GetFile())
 425                                             {
 426                                                 bool show_fullpaths = false;
 427                                                 bool show_module = true;
 428                                                 if (var_sp->DumpDeclaration(&s, show_fullpaths, show_module))
 429                                                     s.PutCString (": ");
 430                                             }
 431                                             valobj_sp->Dump(result.GetOutputStream(),options);
 432                                         }
 433                                     }
 434                                 }
 435                             }
 436                             else if (num_matches == 0)
 437                             {
 438                                 result.GetErrorStream().Printf ("error: no variables matched the regular expression '%s'.\n", name_cstr);
 439                             }
 440                         }
 441                         else
 442                         {
 443                             char regex_error[1024];
 444                             if (regex.GetErrorAsCString(regex_error, sizeof(regex_error)))
 445                                 result.GetErrorStream().Printf ("error: %s\n", regex_error);
 446                             else
 447                                 result.GetErrorStream().Printf ("error: unknown regex error when compiling '%s'\n", name_cstr);
 448                         }
 449                     }
 450                     else // No regex, either exact variable names or variable expressions.
 451                     {
 452                         Error error;
 453                         uint32_t expr_path_options = StackFrame::eExpressionPathOptionCheckPtrVsMember |
 454                                                      StackFrame::eExpressionPathOptionsAllowDirectIVarAccess |
 455                                                      StackFrame::eExpressionPathOptionsInspectAnonymousUnions;
 456                         lldb::VariableSP var_sp;
 457                         valobj_sp = frame->GetValueForVariableExpressionPath (name_cstr,
 458                                                                               m_varobj_options.use_dynamic,
 459                                                                               expr_path_options,
 460                                                                               var_sp,
 461                                                                               error);
 462                         if (valobj_sp)
 463                         {
 464 //                            if (format != eFormatDefault)
 465 //                                valobj_sp->SetFormat (format);
 466                             if (m_option_variable.show_decl && var_sp && var_sp->GetDeclaration ().GetFile())
 467                             {
 468                                 var_sp->GetDeclaration ().DumpStopContext (&s, false);
 469                                 s.PutCString (": ");
 470                             }
 471
 472                             options.SetFormat(format);
 473                             options.SetVariableFormatDisplayLanguage(valobj_sp->GetPreferredDisplayLanguage());
 474
 475                             Stream &output_stream = result.GetOutputStream();
 476                             options.SetRootValueObjectName(valobj_sp->GetParent() ? name_cstr : nullptr);
 477                             valobj_sp->Dump(output_stream,options);
 478                         }
 479                         else
 480                         {
 481                             const char *error_cstr = error.AsCString(nullptr);
 482                             if (error_cstr)
 483                                 result.GetErrorStream().Printf("error: %s\n", error_cstr);
 484                             else
 485                                 result.GetErrorStream().Printf(
 486                                     "error: unable to find any variable expression path that matches '%s'.\n",
 487                                     name_cstr);
 488                         }
 489                     }
 490                 }
 491             }
 492             else // No command arg specified.  Use variable_list, instead.
 493             {
 494                 const size_t num_variables = variable_list->GetSize();
 495                 if (num_variables > 0)
 496                 {
 497                     for (size_t i=0; i<num_variables; i++)
 498                     {
 499                         var_sp = variable_list->GetVariableAtIndex(i);
 500                         bool dump_variable = true;
 501                         std::string scope_string;
 502                         switch (var_sp->GetScope())
 503                         {
 504                             case eValueTypeVariableGlobal:
 505                                 // Always dump globals since we only fetched them if
 506                                 // m_option_variable.show_scope was true
 507                                 if (dump_variable && m_option_variable.show_scope)
 508                                     scope_string = "GLOBAL: ";
 509                                 break;
 510
 511                             case eValueTypeVariableStatic:
 512                                 // Always dump globals since we only fetched them if
 513                                 // m_option_variable.show_scope was true, or this is
 514                                 // a static variable from a block in the current scope
 515                                 if (dump_variable && m_option_variable.show_scope)
 516                                     scope_string = "STATIC: ";
 517                                 break;
 518
 519                             case eValueTypeVariableArgument:
 520                                 dump_variable = m_option_variable.show_args;
 521                                 if (dump_variable && m_option_variable.show_scope)
 522                                     scope_string = "   ARG: ";
 523                                 break;
 524
 525                             case eValueTypeVariableLocal:
 526                                 dump_variable = m_option_variable.show_locals;
 527                                 if (dump_variable && m_option_variable.show_scope)
 528                                     scope_string = " LOCAL: ";
 529                                 break;
 530
 531                             case eValueTypeVariableThreadLocal:
 532                                 if (dump_variable && m_option_variable.show_scope)
 533                                     scope_string = "THREAD: ";
 534                                 break;
 535                             default:
 536                                 break;
 537                         }
 538
 539                         if (dump_variable)
 540                         {
 541                             // Use the variable object code to make sure we are
 542                             // using the same APIs as the public API will be
 543                             // using...
 544                             valobj_sp = frame->GetValueObjectForFrameVariable (var_sp,
 545                                                                                m_varobj_options.use_dynamic);
 546                             if (valobj_sp)
 547                             {
 548 //                                if (format != eFormatDefault)
 549 //                                    valobj_sp->SetFormat (format);
 550
 551                                 // When dumping all variables, don't print any variables
 552                                 // that are not in scope to avoid extra unneeded output
 553                                 if (valobj_sp->IsInScope ())
 554                                 {
 555                                     if (!valobj_sp->GetTargetSP()->GetDisplayRuntimeSupportValues() &&
 556                                         valobj_sp->IsRuntimeSupportValue())
 557                                         continue;
 558
 559                                     if (!scope_string.empty())
 560                                         s.PutCString(scope_string.c_str());
 561
 562                                     if (m_option_variable.show_decl && var_sp->GetDeclaration ().GetFile())
 563                                     {
 564                                         var_sp->GetDeclaration ().DumpStopContext (&s, false);
 565                                         s.PutCString (": ");
 566                                     }
 567
 568                                     options.SetFormat(format);
 569                                     options.SetVariableFormatDisplayLanguage(valobj_sp->GetPreferredDisplayLanguage());
 570                                     options.SetRootValueObjectName(name_cstr);
 571                                     valobj_sp->Dump(result.GetOutputStream(),options);
 572                                 }
 573                             }
 574                         }
 575                     }
 576                 }
 577             }
 578             result.SetStatus (eReturnStatusSuccessFinishResult);
 579         }
 580
 581         if (m_interpreter.TruncationWarningNecessary())
 582         {
 583             result.GetOutputStream().Printf(m_interpreter.TruncationWarningText(),
 584                                             m_cmd_name.c_str());
 585             m_interpreter.TruncationWarningGiven();
 586         }
 587
 588         return result.Succeeded();
 589     }
 590
 591 protected:
 592     OptionGroupOptions m_option_group;
 593     OptionGroupVariable m_option_variable;
 594     OptionGroupFormat m_option_format;
 595     OptionGroupValueObjectDisplay m_varobj_options;
 596 };
 597
 598 #pragma mark CommandObjectMultiwordFrame
 599
 600 //-------------------------------------------------------------------------
 601 // CommandObjectMultiwordFrame
 602 //-------------------------------------------------------------------------
 603
 604 CommandObjectMultiwordFrame::CommandObjectMultiwordFrame(CommandInterpreter &interpreter)
 605     : CommandObjectMultiword(interpreter, "frame",
 606                              "Commands for selecting and examing the current thread's stack frames.",
 607                              "frame <subcommand> [<subcommand-options>]")
 608 {
 609     LoadSubCommand ("info",   CommandObjectSP (new CommandObjectFrameInfo (interpreter)));
 610     LoadSubCommand ("select", CommandObjectSP (new CommandObjectFrameSelect (interpreter)));
 611     LoadSubCommand ("variable", CommandObjectSP (new CommandObjectFrameVariable (interpreter)));
 612 }
 613
 614 CommandObjectMultiwordFrame::~CommandObjectMultiwordFrame() = default;