contrib/llvm/tools/lldb/source/Target/StructuredDataPlugin.cpp

   1 //===-- StructuredDataPlugin.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 #include "lldb/Target/StructuredDataPlugin.h"
  11
  12 #include "lldb/Core/Debugger.h"
  13 #include "lldb/Interpreter/CommandInterpreter.h"
  14 #include "lldb/Interpreter/CommandObjectMultiword.h"
  15
  16 using namespace lldb;
  17 using namespace lldb_private;
  18
  19 namespace {
  20 class CommandStructuredData : public CommandObjectMultiword {
  21 public:
  22   CommandStructuredData(CommandInterpreter &interpreter)
  23       : CommandObjectMultiword(interpreter, "structured-data",
  24                                "Parent for per-plugin structured data commands",
  25                                "plugin structured-data <plugin>") {}
  26
  27   ~CommandStructuredData() {}
  28 };
  29 }
  30
  31 StructuredDataPlugin::StructuredDataPlugin(const ProcessWP &process_wp)
  32     : PluginInterface(), m_process_wp(process_wp) {}
  33
  34 StructuredDataPlugin::~StructuredDataPlugin() {}
  35
  36 bool StructuredDataPlugin::GetEnabled(const ConstString &type_name) const {
  37   // By default, plugins are always enabled.  Plugin authors should override
  38   // this if there is an enabled/disabled state for their plugin.
  39   return true;
  40 }
  41
  42 ProcessSP StructuredDataPlugin::GetProcess() const {
  43   return m_process_wp.lock();
  44 }
  45
  46 void StructuredDataPlugin::InitializeBasePluginForDebugger(Debugger &debugger) {
  47   // Create our mutliword command anchor if it doesn't already exist.
  48   auto &interpreter = debugger.GetCommandInterpreter();
  49   if (!interpreter.GetCommandObject("plugin structured-data")) {
  50     // Find the parent command.
  51     auto parent_command =
  52         debugger.GetCommandInterpreter().GetCommandObject("plugin");
  53     if (!parent_command)
  54       return;
  55
  56     // Create the structured-data ommand object.
  57     auto command_name = "structured-data";
  58     auto command_sp = CommandObjectSP(new CommandStructuredData(interpreter));
  59
  60     // Hook it up under the top-level plugin command.
  61     parent_command->LoadSubCommand(command_name, command_sp);
  62   }
  63 }
  64
  65 void StructuredDataPlugin::ModulesDidLoad(Process &process,
  66                                           ModuleList &module_list) {
  67   // Default implementation does nothing.
  68 }