[lldb/Commands] Alias script command to scripting execute

This patch introduces a new top-level `scripting` command with an
`execute` sub-command, that basically replaces the `script` raw command.

To avoid breaking the `script` command usages, this patch also adds an
`script` alias to the `scripting execute` sub-command.

Signed-off-by: Med Ismail Bennani <ismail@bennani.ma>

lldb/source/Commands/CMakeLists.txt

@@ -26,7 +26,7 @@ add_lldb_library(lldbCommands NO_PLUGIN_DEPENDENCIES
   CommandObjectQuit.cpp
   CommandObjectRegexCommand.cpp
   CommandObjectRegister.cpp
-  CommandObjectScript.cpp
+  CommandObjectScripting.cpp
   CommandObjectSession.cpp
   CommandObjectSettings.cpp
   CommandObjectSource.cpp

lldb/source/Commands/CommandObjectScript.cpp → lldb/source/Commands/CommandObjectScripting.cpp

@@ -1,12 +1,12 @@
-//===-- CommandObjectScript.cpp -------------------------------------------===//
+//===-- CommandObjectScripting.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 "CommandObjectScript.h"
+#include "CommandObjectScripting.h"
 #include "lldb/Core/Debugger.h"
 #include "lldb/DataFormatters/DataVisualization.h"
 #include "lldb/Host/Config.h"
@@ -21,10 +21,10 @@
 using namespace lldb;
 using namespace lldb_private;
 
-#define LLDB_OPTIONS_script
+#define LLDB_OPTIONS_scripting_execute
 #include "CommandOptions.inc"
 
-Status CommandObjectScript::CommandOptions::SetOptionValue(
+Status CommandObjectScriptingExecute::CommandOptions::SetOptionValue(
     uint32_t option_idx, llvm::StringRef option_arg,
     ExecutionContext *execution_context) {
   Status error;
@@ -46,27 +46,29 @@ Status CommandObjectScript::CommandOptions::SetOptionValue(
   return error;
 }
 
-void CommandObjectScript::CommandOptions::OptionParsingStarting(
+void CommandObjectScriptingExecute::CommandOptions::OptionParsingStarting(
     ExecutionContext *execution_context) {
   language = lldb::eScriptLanguageNone;
 }
 
 llvm::ArrayRef<OptionDefinition>
-CommandObjectScript::CommandOptions::GetDefinitions() {
-  return llvm::ArrayRef(g_script_options);
+CommandObjectScriptingExecute::CommandOptions::GetDefinitions() {
+  return llvm::ArrayRef(g_scripting_execute_options);
 }
 
-CommandObjectScript::CommandObjectScript(CommandInterpreter &interpreter)
+CommandObjectScriptingExecute::CommandObjectScriptingExecute(
+    CommandInterpreter &interpreter)
     : CommandObjectRaw(
-          interpreter, "script",
+          interpreter, "scripting execute",
           "Invoke the script interpreter with provided code and display any "
           "results.  Start the interactive interpreter if no code is supplied.",
-          "script [--language <scripting-language> --] [<script-code>]") {}
+          "scripting execute [--language <scripting-language> --] "
+          "[<script-code>]") {}
 
-CommandObjectScript::~CommandObjectScript() = default;
+CommandObjectScriptingExecute::~CommandObjectScriptingExecute() = default;
 
-void CommandObjectScript::DoExecute(llvm::StringRef command,
-                                    CommandReturnObject &result) {
+void CommandObjectScriptingExecute::DoExecute(llvm::StringRef command,
+                                              CommandReturnObject &result) {
   // Try parsing the language option but when the command contains a raw part
   // separated by the -- delimiter.
   OptionsWithRaw raw_args(command);
@@ -111,3 +113,19 @@ void CommandObjectScript::DoExecute(llvm::StringRef command,
   else
     result.SetStatus(eReturnStatusFailed);
 }
+
+#pragma mark CommandObjectMultiwordScripting
+
+// CommandObjectMultiwordScripting
+
+CommandObjectMultiwordScripting::CommandObjectMultiwordScripting(
+    CommandInterpreter &interpreter)
+    : CommandObjectMultiword(
+          interpreter, "scripting",
+          "Commands for operating on the scripting functionnalities.",
+          "scripting <subcommand> [<subcommand-options>]") {
+  LoadSubCommand("execute", CommandObjectSP(new CommandObjectScriptingExecute(
+                                interpreter)));
+}
+
+CommandObjectMultiwordScripting::~CommandObjectMultiwordScripting() = default;

lldb/source/Commands/CommandObjectScript.h → lldb/source/Commands/CommandObjectScripting.h

@@ -1,4 +1,4 @@
-//===-- CommandObjectScript.h -----------------------------------*- C++ -*-===//
+//===-- CommandObjectScripting.h --------------------------------*- C++ -*-===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
@@ -9,14 +9,21 @@
 #ifndef LLDB_SOURCE_INTERPRETER_COMMANDOBJECTSCRIPT_H
 #define LLDB_SOURCE_INTERPRETER_COMMANDOBJECTSCRIPT_H
 
-#include "lldb/Interpreter/CommandObject.h"
+#include "lldb/Interpreter/CommandObjectMultiword.h"
 
 namespace lldb_private {
 
-class CommandObjectScript : public CommandObjectRaw {
+class CommandObjectMultiwordScripting : public CommandObjectMultiword {
 public:
-  CommandObjectScript(CommandInterpreter &interpreter);
-  ~CommandObjectScript() override;
+  CommandObjectMultiwordScripting(CommandInterpreter &interpreter);
+
+  ~CommandObjectMultiwordScripting() override;
+};
+
+class CommandObjectScriptingExecute : public CommandObjectRaw {
+public:
+  CommandObjectScriptingExecute(CommandInterpreter &interpreter);
+  ~CommandObjectScriptingExecute() override;
   Options *GetOptions() override { return &m_options; }
 
   class CommandOptions : public Options {

lldb/source/Commands/Options.td

@@ -829,7 +829,7 @@ let Command = "container add" in {
   Desc<"Overwrite an existing command at this node.">;
 }
 
-let Command = "script" in {
+let Command = "scripting execute" in {
   def script_language : Option<"language", "l">,
     EnumArg<"ScriptLang">, Desc<"Specify the scripting "
     " language. If none is specific the default scripting language is used.">;

lldb/source/Interpreter/CommandInterpreter.cpp

@@ -32,7 +32,7 @@
 #include "Commands/CommandObjectQuit.h"
 #include "Commands/CommandObjectRegexCommand.h"
 #include "Commands/CommandObjectRegister.h"
-#include "Commands/CommandObjectScript.h"
+#include "Commands/CommandObjectScripting.h"
 #include "Commands/CommandObjectSession.h"
 #include "Commands/CommandObjectSettings.h"
 #include "Commands/CommandObjectSource.h"
@@ -504,6 +504,11 @@ void CommandInterpreter::Initialize() {
     AddAlias("re", cmd_obj_sp);
   }
 
+  cmd_obj_sp = GetCommandSPExact("scripting execute");
+  if (cmd_obj_sp) {
+    AddAlias("script", cmd_obj_sp);
+  }
+
   cmd_obj_sp = GetCommandSPExact("session history");
   if (cmd_obj_sp) {
     AddAlias("history", cmd_obj_sp);
@@ -555,7 +560,7 @@ void CommandInterpreter::LoadCommandDictionary() {
   REGISTER_COMMAND_OBJECT("process", CommandObjectMultiwordProcess);
   REGISTER_COMMAND_OBJECT("quit", CommandObjectQuit);
   REGISTER_COMMAND_OBJECT("register", CommandObjectRegister);
-  REGISTER_COMMAND_OBJECT("script", CommandObjectScript);
+  REGISTER_COMMAND_OBJECT("scripting", CommandObjectMultiwordScripting);
   REGISTER_COMMAND_OBJECT("settings", CommandObjectMultiwordSettings);
   REGISTER_COMMAND_OBJECT("session", CommandObjectSession);
   REGISTER_COMMAND_OBJECT("source", CommandObjectMultiwordSource);