text: //===-- CommandObjectQuit.cpp ---------------------------------------------===//
  //
  // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
  // See https://llvm.org/LICENSE.txt for license information.
  // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  //
  //===----------------------------------------------------------------------===//
  
  #include "CommandObjectQuit.h"
  
  #include "lldb/Interpreter/CommandInterpreter.h"
  #include "lldb/Interpreter/CommandReturnObject.h"
  #include "lldb/Target/Process.h"
  #include "lldb/Utility/StreamString.h"
  
  using namespace lldb;
  using namespace lldb_private;
  
  // CommandObjectQuit
  
  CommandObjectQuit::CommandObjectQuit(CommandInterpreter &interpreter)
      : CommandObjectParsed(interpreter, "quit", "Quit the LLDB debugger.",
                            "quit [exit-code]") {}
  
  CommandObjectQuit::~CommandObjectQuit() {}
  
  // returns true if there is at least one alive process is_a_detach will be true
  // if all alive processes will be detached when you quit and false if at least
  // one process will be killed instead
  bool CommandObjectQuit::ShouldAskForConfirmation(bool &is_a_detach) {
    if (!m_interpreter.GetPromptOnQuit())
      return false;
    bool should_prompt = false;
    is_a_detach = true;
    for (uint32_t debugger_idx = 0; debugger_idx < Debugger::GetNumDebuggers();
         debugger_idx++) {
      DebuggerSP debugger_sp(Debugger::GetDebuggerAtIndex(debugger_idx));
      if (!debugger_sp)
        continue;
      const TargetList &target_list(debugger_sp->GetTargetList());
      for (uint32_t target_idx = 0;
           target_idx < static_cast<uint32_t>(target_list.GetNumTargets());
           target_idx++) {
        TargetSP target_sp(target_list.GetTargetAtIndex(target_idx));
        if (!target_sp)
          continue;
        ProcessSP process_sp(target_sp->GetProcessSP());
        if (process_sp && process_sp->IsValid() && process_sp->IsAlive() &&
            process_sp->WarnBeforeDetach()) {
          should_prompt = true;
          if (!process_sp->GetShouldDetach()) {
            // if we need to kill at least one process, just say so and return
            is_a_detach = false;
            return should_prompt;
          }
        }
      }
    }
    return should_prompt;
  }
  
  bool CommandObjectQuit::DoExecute(Args &command, CommandReturnObject &result) {
    bool is_a_detach = true;
    if (ShouldAskForConfirmation(is_a_detach)) {
      StreamString message;
      message.Printf("Quitting LLDB will %s one or more processes. Do you really "
                     "want to proceed",
                     (is_a_detach ? "detach from" : "kill"));
      if (!m_interpreter.Confirm(message.GetString(), true)) {
        result.SetStatus(eReturnStatusFailed);
        return false;
      }
    }
  
    if (command.GetArgumentCount() > 1) {
      result.AppendError("Too many arguments for 'quit'. Only an optional exit "
                         "code is allowed");
      result.SetStatus(eReturnStatusFailed);
      return false;
    }
  
    // We parse the exit code argument if there is one.
    if (command.GetArgumentCount() == 1) {
      llvm::StringRef arg = command.GetArgumentAtIndex(0);
      int exit_code;
      if (arg.getAsInteger(/*autodetect radix*/ 0, exit_code)) {
        lldb_private::StreamString s;
        std::string arg_str = arg.str();
        s.Printf("Couldn't parse '%s' as integer for exit code.", arg_str.data());
        result.AppendError(s.GetString());
        result.SetStatus(eReturnStatusFailed);
        return false;
      }
      if (!m_interpreter.SetQuitExitCode(exit_code)) {
        result.AppendError("The current driver doesn't allow custom exit codes"
                           " for the quit command.");
        result.SetStatus(eReturnStatusFailed);
        return false;
      }
    }
  
    const uint32_t event_type =
        CommandInterpreter::eBroadcastBitQuitCommandReceived;
    m_interpreter.BroadcastEvent(event_type);
    result.SetStatus(eReturnStatusQuit);
  
    if (m_interpreter.GetSaveSessionOnQuit())
      m_interpreter.SaveTranscript(result);
  
    return true;
  }
  