contrib/llvm-project/lldb/tools/lldb-mi/MICmdCmdSupportInfo.cpp

   1 //===-- MICmdCmdSupportInfo.cpp ---------------------------------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 // Overview:    CMICmdCmdSupportInfoMiCmdQuery          implementation.
  10
  11 // In-house headers:
  12 #include "MICmdCmdSupportInfo.h"
  13 #include "MICmdArgValString.h"
  14 #include "MICmdFactory.h"
  15 #include "MICmnMIResultRecord.h"
  16 #include "MICmnMIValueConst.h"
  17 #include "MICmnMIValueTuple.h"
  18
  19 //++
  20 // Details: CMICmdCmdSupportInfoMiCmdQuery constructor.
  21 // Type:    Method.
  22 // Args:    None.
  23 // Return:  None.
  24 // Throws:  None.
  25 //--
  26 CMICmdCmdSupportInfoMiCmdQuery::CMICmdCmdSupportInfoMiCmdQuery()
  27     : m_bCmdFound(false), m_constStrArgCmdName("cmd_name") {
  28   // Command factory matches this name with that received from the stdin stream
  29   m_strMiCmd = "info-gdb-mi-command";
  30
  31   // Required by the CMICmdFactory when registering *this command
  32   m_pSelfCreatorFn = &CMICmdCmdSupportInfoMiCmdQuery::CreateSelf;
  33 }
  34
  35 //++
  36 // Details: CMICmdCmdSupportInfoMiCmdQuery destructor.
  37 // Type:    Overrideable.
  38 // Args:    None.
  39 // Return:  None.
  40 // Throws:  None.
  41 //--
  42 CMICmdCmdSupportInfoMiCmdQuery::~CMICmdCmdSupportInfoMiCmdQuery() {}
  43
  44 //++
  45 // Details: The invoker requires this function. The parses the command line
  46 // options
  47 //          arguments to extract values for each of those arguments.
  48 // Type:    Overridden.
  49 // Args:    None.
  50 // Return:  MIstatus::success - Functional succeeded.
  51 //          MIstatus::failure - Functional failed.
  52 // Throws:  None.
  53 //--
  54 bool CMICmdCmdSupportInfoMiCmdQuery::ParseArgs() {
  55   m_setCmdArgs.Add(new CMICmdArgValString(m_constStrArgCmdName, true, true));
  56   return ParseValidateCmdOptions();
  57 }
  58
  59 //++
  60 // Details: The invoker requires this function. The command does work in this
  61 // function.
  62 //          The command is likely to communicate with the LLDB SBDebugger in
  63 //          here.
  64 // Type:    Overridden.
  65 // Args:    None.
  66 // Return:  MIstatus::success - Functional succeeded.
  67 //          MIstatus::failure - Functional failed.
  68 // Throws:  None.
  69 //--
  70 bool CMICmdCmdSupportInfoMiCmdQuery::Execute() {
  71   CMICMDBASE_GETOPTION(pArgNamedCmdName, String, m_constStrArgCmdName);
  72   const CMIUtilString &rCmdToQuery(pArgNamedCmdName->GetValue());
  73   const MIuint nLen = rCmdToQuery.length();
  74   const CMICmdFactory &rCmdFactory = CMICmdFactory::Instance();
  75   if ((nLen > 1) && (rCmdToQuery[0] == '-'))
  76     m_bCmdFound = rCmdFactory.CmdExist(rCmdToQuery.substr(1, nLen - 1).c_str());
  77   else
  78     m_bCmdFound = rCmdFactory.CmdExist(rCmdToQuery);
  79
  80   return MIstatus::success;
  81 }
  82
  83 //++
  84 // Details: The invoker requires this function. The command prepares a MI Record
  85 // Result
  86 //          for the work carried out in the Execute().
  87 // Type:    Overridden.
  88 // Args:    None.
  89 // Return:  MIstatus::success - Functional succeeded.
  90 //          MIstatus::failure - Functional failed.
  91 // Throws:  None.
  92 //--
  93 bool CMICmdCmdSupportInfoMiCmdQuery::Acknowledge() {
  94   const CMICmnMIValueConst miValueConst(m_bCmdFound ? "true" : "false");
  95   const CMICmnMIValueResult miValueResult("exists", miValueConst);
  96   const CMICmnMIValueTuple miValueTuple(miValueResult);
  97   const CMICmnMIValueResult miValueResult2("command", miValueTuple);
  98   const CMICmnMIResultRecord miRecordResult(
  99       m_cmdData.strMiCmdToken, CMICmnMIResultRecord::eResultClass_Done,
 100       miValueResult2);
 101   m_miResultRecord = miRecordResult;
 102
 103   return MIstatus::success;
 104 }
 105
 106 //++
 107 // Details: Required by the CMICmdFactory when registering *this command. The
 108 // factory
 109 //          calls this function to create an instance of *this command.
 110 // Type:    Static method.
 111 // Args:    None.
 112 // Return:  CMICmdBase * - Pointer to a new command.
 113 // Throws:  None.
 114 //--
 115 CMICmdBase *CMICmdCmdSupportInfoMiCmdQuery::CreateSelf() {
 116   return new CMICmdCmdSupportInfoMiCmdQuery();
 117 }