2010-06-09 00:52:24 +08:00
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//===-- CommandObjectMultiword.cpp ------------------------------*- C++ -*-===//
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//
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2019-01-19 16:50:56 +08:00
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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2010-06-09 00:52:24 +08:00
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//
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//===----------------------------------------------------------------------===//
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2016-02-20 08:58:29 +08:00
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#include "lldb/Interpreter/CommandObjectMultiword.h"
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2010-06-23 09:19:29 +08:00
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#include "lldb/Core/Debugger.h"
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2010-06-09 00:52:24 +08:00
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#include "lldb/Interpreter/CommandInterpreter.h"
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#include "lldb/Interpreter/CommandReturnObject.h"
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2016-09-07 04:57:50 +08:00
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#include "lldb/Interpreter/Options.h"
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2010-06-09 00:52:24 +08:00
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using namespace lldb;
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using namespace lldb_private;
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// CommandObjectMultiword
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2016-02-20 08:58:29 +08:00
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CommandObjectMultiword::CommandObjectMultiword(CommandInterpreter &interpreter,
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const char *name,
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const char *help,
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const char *syntax,
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2016-09-07 04:57:50 +08:00
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uint32_t flags)
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: CommandObject(interpreter, name, help, syntax, flags),
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m_can_be_removed(false) {}
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2010-06-09 00:52:24 +08:00
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2016-02-20 08:58:29 +08:00
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CommandObjectMultiword::~CommandObjectMultiword() = default;
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2010-06-09 00:52:24 +08:00
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2016-11-13 10:50:32 +08:00
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CommandObjectSP CommandObjectMultiword::GetSubcommandSP(llvm::StringRef sub_cmd,
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2016-09-07 04:57:50 +08:00
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StringList *matches) {
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CommandObjectSP return_cmd_sp;
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CommandObject::CommandMap::iterator pos;
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if (!m_subcommand_dict.empty()) {
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pos = m_subcommand_dict.find(sub_cmd);
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if (pos != m_subcommand_dict.end()) {
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// An exact match; append the sub_cmd to the 'matches' string list.
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if (matches)
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matches->AppendString(sub_cmd);
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return_cmd_sp = pos->second;
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} else {
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StringList local_matches;
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if (matches == nullptr)
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matches = &local_matches;
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int num_matches =
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AddNamesMatchingPartialString(m_subcommand_dict, sub_cmd, *matches);
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if (num_matches == 1) {
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// Cleaner, but slightly less efficient would be to call back into this
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2018-05-01 00:49:04 +08:00
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// function, since I now know I have an exact match...
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2016-09-07 04:57:50 +08:00
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sub_cmd = matches->GetStringAtIndex(0);
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pos = m_subcommand_dict.find(sub_cmd);
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if (pos != m_subcommand_dict.end())
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return_cmd_sp = pos->second;
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}
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2010-06-09 00:52:24 +08:00
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}
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2016-09-07 04:57:50 +08:00
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}
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return return_cmd_sp;
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2010-06-09 00:52:24 +08:00
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}
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CommandObject *
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2016-11-13 10:50:32 +08:00
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CommandObjectMultiword::GetSubcommandObject(llvm::StringRef sub_cmd,
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2016-09-07 04:57:50 +08:00
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StringList *matches) {
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return GetSubcommandSP(sub_cmd, matches).get();
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2010-06-09 00:52:24 +08:00
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}
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2016-11-13 10:50:32 +08:00
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bool CommandObjectMultiword::LoadSubCommand(llvm::StringRef name,
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2016-09-07 04:57:50 +08:00
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const CommandObjectSP &cmd_obj) {
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if (cmd_obj)
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assert((&GetCommandInterpreter() == &cmd_obj->GetCommandInterpreter()) &&
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"tried to add a CommandObject from a different interpreter");
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CommandMap::iterator pos;
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bool success = true;
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pos = m_subcommand_dict.find(name);
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if (pos == m_subcommand_dict.end()) {
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m_subcommand_dict[name] = cmd_obj;
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} else
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success = false;
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2010-06-09 00:52:24 +08:00
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2016-09-07 04:57:50 +08:00
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return success;
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2010-06-09 00:52:24 +08:00
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}
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2016-09-07 04:57:50 +08:00
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bool CommandObjectMultiword::Execute(const char *args_string,
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CommandReturnObject &result) {
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Args args(args_string);
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const size_t argc = args.GetArgumentCount();
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if (argc == 0) {
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this->CommandObject::GenerateHelpText(result);
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2016-12-09 13:46:41 +08:00
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return result.Succeeded();
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}
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auto sub_command = args[0].ref;
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if (sub_command.empty())
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return result.Succeeded();
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if (sub_command.equals_lower("help")) {
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this->CommandObject::GenerateHelpText(result);
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return result.Succeeded();
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}
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if (m_subcommand_dict.empty()) {
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result.AppendErrorWithFormat("'%s' does not have any subcommands.\n",
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GetCommandName().str().c_str());
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result.SetStatus(eReturnStatusFailed);
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return false;
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}
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StringList matches;
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CommandObject *sub_cmd_obj = GetSubcommandObject(sub_command, &matches);
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if (sub_cmd_obj != nullptr) {
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// Now call CommandObject::Execute to process options in `rest_of_line`.
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2018-05-01 00:49:04 +08:00
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// From there the command-specific version of Execute will be called, with
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// the processed arguments.
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2016-12-09 13:46:41 +08:00
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args.Shift();
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sub_cmd_obj->Execute(args_string, result);
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return result.Succeeded();
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2016-09-07 04:57:50 +08:00
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}
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2010-06-09 00:52:24 +08:00
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2016-12-09 13:46:41 +08:00
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std::string error_msg;
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const size_t num_subcmd_matches = matches.GetSize();
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if (num_subcmd_matches > 0)
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error_msg.assign("ambiguous command ");
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else
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error_msg.assign("invalid command ");
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error_msg.append("'");
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error_msg.append(GetCommandName());
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error_msg.append(" ");
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error_msg.append(sub_command);
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error_msg.append("'.");
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if (num_subcmd_matches > 0) {
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error_msg.append(" Possible completions:");
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2018-07-28 02:42:46 +08:00
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for (size_t i = 0; i < matches.GetSize(); i++) {
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2016-12-09 13:46:41 +08:00
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error_msg.append("\n\t");
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error_msg.append(matches.GetStringAtIndex(i));
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}
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}
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error_msg.append("\n");
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result.AppendRawError(error_msg.c_str());
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result.SetStatus(eReturnStatusFailed);
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return false;
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2010-06-09 00:52:24 +08:00
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}
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2016-09-07 04:57:50 +08:00
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void CommandObjectMultiword::GenerateHelpText(Stream &output_stream) {
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2018-05-01 00:49:04 +08:00
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// First time through here, generate the help text for the object and push it
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// to the return result object as well
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2016-09-07 04:57:50 +08:00
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CommandObject::GenerateHelpText(output_stream);
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output_stream.PutCString("\nThe following subcommands are supported:\n\n");
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CommandMap::iterator pos;
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uint32_t max_len = FindLongestCommandWord(m_subcommand_dict);
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if (max_len)
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max_len += 4; // Indent the output by 4 spaces.
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for (pos = m_subcommand_dict.begin(); pos != m_subcommand_dict.end(); ++pos) {
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std::string indented_command(" ");
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indented_command.append(pos->first);
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if (pos->second->WantsRawCommandString()) {
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std::string help_text(pos->second->GetHelp());
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help_text.append(" Expects 'raw' input (see 'help raw-input'.)");
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m_interpreter.OutputFormattedHelpText(output_stream,
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indented_command.c_str(), "--",
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help_text.c_str(), max_len);
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} else
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m_interpreter.OutputFormattedHelpText(output_stream,
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indented_command.c_str(), "--",
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pos->second->GetHelp(), max_len);
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}
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output_stream.PutCString("\nFor more help on any particular subcommand, type "
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"'help <command> <subcommand>'.\n");
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2010-06-09 00:52:24 +08:00
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}
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Refactoring for for the internal command line completion API (NFC)
Summary:
This patch refactors the internal completion API. It now takes (as far as possible) a single
CompletionRequest object instead o half a dozen in/out/in-out parameters. The CompletionRequest
contains a common superset of the different parameters as far as it makes sense. This includes
the raw command line string and raw cursor position, which should make the `expr` command
possible to implement (at least without hacks that reconstruct the command line from the args).
This patch is not intended to change the observable behavior of lldb in any way. It's also as
minimal as possible and doesn't attempt to fix all the problems the API has.
Some Q&A:
Q: Why is this not fixing all the problems in the completion API?
A: Because is a blocker for the expr command completion which I want to get in ASAP. This is the
smallest patch that unblocks the expr completion patch and which allows trivial refactoring in the future.
The patch also doesn't really change the internal information flow in the API, so that hopefully
saves us from ever having to revert and resubmit this humongous patch.
Q: Can we merge all the copy-pasted code in the completion methods
(like computing the current incomplete arg) into CompletionRequest class?
A: Yes, but it's out of scope for this patch.
Q: Why the `word_complete = request.GetWordComplete(); ... ` pattern?
A: I don't want to add a getter that returns a reference to the internal integer. So we have
to use a temporary variable and the Getter/Setter instead. We don't throw exceptions
from what I can tell, so the behavior doesn't change.
Q: Why are we not owning the list of matches?
A: Because that's how the previous API works. But that should be fixed too (in another patch).
Q: Can we make the constructor simpler and compute some of the values from the plain command?
A: I think this works, but I rather want to have this in a follow up commit. Especially when making nested
request it's a bit awkward that the parsed arguments behave as both input/output (as we should in theory
propagate the changes on the nested request back to the parent request if we don't want to change the
behavior too much).
Q: Can't we pass one const request object and then just return another result object instead of mixing
them together in one in/out parameter?
A: It's hard to get keep the same behavior with that pattern, but I think we can also get a nice API with just
a single request object. If we make all input parameters read-only, we have a clear separation between what
is actually an input and what an output parameter (and hopefully we get rid of the in-out parameters).
Q: Can we throw out the 'match' variables that are not implemented according to the comment?
A: We currently just forward them as in the old code to the different methods, even though I think
they are really not used. We can easily remove and readd them once every single completion method just
takes a CompletionRequest, but for now I prefer NFC behavior from the perspective of the API user.
Reviewers: davide, jingham, labath
Reviewed By: jingham
Subscribers: mgorny, friss, lldb-commits
Differential Revision: https://reviews.llvm.org/D48796
llvm-svn: 336146
2018-07-03 05:29:56 +08:00
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int CommandObjectMultiword::HandleCompletion(CompletionRequest &request) {
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2016-09-07 04:57:50 +08:00
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// Any of the command matches will provide a complete word, otherwise the
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2016-12-09 13:46:41 +08:00
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// individual completers will override this.
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Refactoring for for the internal command line completion API (NFC)
Summary:
This patch refactors the internal completion API. It now takes (as far as possible) a single
CompletionRequest object instead o half a dozen in/out/in-out parameters. The CompletionRequest
contains a common superset of the different parameters as far as it makes sense. This includes
the raw command line string and raw cursor position, which should make the `expr` command
possible to implement (at least without hacks that reconstruct the command line from the args).
This patch is not intended to change the observable behavior of lldb in any way. It's also as
minimal as possible and doesn't attempt to fix all the problems the API has.
Some Q&A:
Q: Why is this not fixing all the problems in the completion API?
A: Because is a blocker for the expr command completion which I want to get in ASAP. This is the
smallest patch that unblocks the expr completion patch and which allows trivial refactoring in the future.
The patch also doesn't really change the internal information flow in the API, so that hopefully
saves us from ever having to revert and resubmit this humongous patch.
Q: Can we merge all the copy-pasted code in the completion methods
(like computing the current incomplete arg) into CompletionRequest class?
A: Yes, but it's out of scope for this patch.
Q: Why the `word_complete = request.GetWordComplete(); ... ` pattern?
A: I don't want to add a getter that returns a reference to the internal integer. So we have
to use a temporary variable and the Getter/Setter instead. We don't throw exceptions
from what I can tell, so the behavior doesn't change.
Q: Why are we not owning the list of matches?
A: Because that's how the previous API works. But that should be fixed too (in another patch).
Q: Can we make the constructor simpler and compute some of the values from the plain command?
A: I think this works, but I rather want to have this in a follow up commit. Especially when making nested
request it's a bit awkward that the parsed arguments behave as both input/output (as we should in theory
propagate the changes on the nested request back to the parent request if we don't want to change the
behavior too much).
Q: Can't we pass one const request object and then just return another result object instead of mixing
them together in one in/out parameter?
A: It's hard to get keep the same behavior with that pattern, but I think we can also get a nice API with just
a single request object. If we make all input parameters read-only, we have a clear separation between what
is actually an input and what an output parameter (and hopefully we get rid of the in-out parameters).
Q: Can we throw out the 'match' variables that are not implemented according to the comment?
A: We currently just forward them as in the old code to the different methods, even though I think
they are really not used. We can easily remove and readd them once every single completion method just
takes a CompletionRequest, but for now I prefer NFC behavior from the perspective of the API user.
Reviewers: davide, jingham, labath
Reviewed By: jingham
Subscribers: mgorny, friss, lldb-commits
Differential Revision: https://reviews.llvm.org/D48796
llvm-svn: 336146
2018-07-03 05:29:56 +08:00
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request.SetWordComplete(true);
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2016-09-07 04:57:50 +08:00
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Refactoring for for the internal command line completion API (NFC)
Summary:
This patch refactors the internal completion API. It now takes (as far as possible) a single
CompletionRequest object instead o half a dozen in/out/in-out parameters. The CompletionRequest
contains a common superset of the different parameters as far as it makes sense. This includes
the raw command line string and raw cursor position, which should make the `expr` command
possible to implement (at least without hacks that reconstruct the command line from the args).
This patch is not intended to change the observable behavior of lldb in any way. It's also as
minimal as possible and doesn't attempt to fix all the problems the API has.
Some Q&A:
Q: Why is this not fixing all the problems in the completion API?
A: Because is a blocker for the expr command completion which I want to get in ASAP. This is the
smallest patch that unblocks the expr completion patch and which allows trivial refactoring in the future.
The patch also doesn't really change the internal information flow in the API, so that hopefully
saves us from ever having to revert and resubmit this humongous patch.
Q: Can we merge all the copy-pasted code in the completion methods
(like computing the current incomplete arg) into CompletionRequest class?
A: Yes, but it's out of scope for this patch.
Q: Why the `word_complete = request.GetWordComplete(); ... ` pattern?
A: I don't want to add a getter that returns a reference to the internal integer. So we have
to use a temporary variable and the Getter/Setter instead. We don't throw exceptions
from what I can tell, so the behavior doesn't change.
Q: Why are we not owning the list of matches?
A: Because that's how the previous API works. But that should be fixed too (in another patch).
Q: Can we make the constructor simpler and compute some of the values from the plain command?
A: I think this works, but I rather want to have this in a follow up commit. Especially when making nested
request it's a bit awkward that the parsed arguments behave as both input/output (as we should in theory
propagate the changes on the nested request back to the parent request if we don't want to change the
behavior too much).
Q: Can't we pass one const request object and then just return another result object instead of mixing
them together in one in/out parameter?
A: It's hard to get keep the same behavior with that pattern, but I think we can also get a nice API with just
a single request object. If we make all input parameters read-only, we have a clear separation between what
is actually an input and what an output parameter (and hopefully we get rid of the in-out parameters).
Q: Can we throw out the 'match' variables that are not implemented according to the comment?
A: We currently just forward them as in the old code to the different methods, even though I think
they are really not used. We can easily remove and readd them once every single completion method just
takes a CompletionRequest, but for now I prefer NFC behavior from the perspective of the API user.
Reviewers: davide, jingham, labath
Reviewed By: jingham
Subscribers: mgorny, friss, lldb-commits
Differential Revision: https://reviews.llvm.org/D48796
llvm-svn: 336146
2018-07-03 05:29:56 +08:00
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auto arg0 = request.GetParsedLine()[0].ref;
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if (request.GetCursorIndex() == 0) {
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2018-09-14 05:26:00 +08:00
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StringList new_matches, descriptions;
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AddNamesMatchingPartialString(m_subcommand_dict, arg0, new_matches,
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&descriptions);
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request.AddCompletions(new_matches, descriptions);
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2016-09-07 04:57:50 +08:00
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2018-07-28 02:42:46 +08:00
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if (new_matches.GetSize() == 1 &&
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new_matches.GetStringAtIndex(0) != nullptr &&
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(arg0 == new_matches.GetStringAtIndex(0))) {
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2016-09-07 04:57:50 +08:00
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StringList temp_matches;
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CommandObject *cmd_obj = GetSubcommandObject(arg0, &temp_matches);
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if (cmd_obj != nullptr) {
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Refactoring for for the internal command line completion API (NFC)
Summary:
This patch refactors the internal completion API. It now takes (as far as possible) a single
CompletionRequest object instead o half a dozen in/out/in-out parameters. The CompletionRequest
contains a common superset of the different parameters as far as it makes sense. This includes
the raw command line string and raw cursor position, which should make the `expr` command
possible to implement (at least without hacks that reconstruct the command line from the args).
This patch is not intended to change the observable behavior of lldb in any way. It's also as
minimal as possible and doesn't attempt to fix all the problems the API has.
Some Q&A:
Q: Why is this not fixing all the problems in the completion API?
A: Because is a blocker for the expr command completion which I want to get in ASAP. This is the
smallest patch that unblocks the expr completion patch and which allows trivial refactoring in the future.
The patch also doesn't really change the internal information flow in the API, so that hopefully
saves us from ever having to revert and resubmit this humongous patch.
Q: Can we merge all the copy-pasted code in the completion methods
(like computing the current incomplete arg) into CompletionRequest class?
A: Yes, but it's out of scope for this patch.
Q: Why the `word_complete = request.GetWordComplete(); ... ` pattern?
A: I don't want to add a getter that returns a reference to the internal integer. So we have
to use a temporary variable and the Getter/Setter instead. We don't throw exceptions
from what I can tell, so the behavior doesn't change.
Q: Why are we not owning the list of matches?
A: Because that's how the previous API works. But that should be fixed too (in another patch).
Q: Can we make the constructor simpler and compute some of the values from the plain command?
A: I think this works, but I rather want to have this in a follow up commit. Especially when making nested
request it's a bit awkward that the parsed arguments behave as both input/output (as we should in theory
propagate the changes on the nested request back to the parent request if we don't want to change the
behavior too much).
Q: Can't we pass one const request object and then just return another result object instead of mixing
them together in one in/out parameter?
A: It's hard to get keep the same behavior with that pattern, but I think we can also get a nice API with just
a single request object. If we make all input parameters read-only, we have a clear separation between what
is actually an input and what an output parameter (and hopefully we get rid of the in-out parameters).
Q: Can we throw out the 'match' variables that are not implemented according to the comment?
A: We currently just forward them as in the old code to the different methods, even though I think
they are really not used. We can easily remove and readd them once every single completion method just
takes a CompletionRequest, but for now I prefer NFC behavior from the perspective of the API user.
Reviewers: davide, jingham, labath
Reviewed By: jingham
Subscribers: mgorny, friss, lldb-commits
Differential Revision: https://reviews.llvm.org/D48796
llvm-svn: 336146
2018-07-03 05:29:56 +08:00
|
|
|
if (request.GetParsedLine().GetArgumentCount() == 1) {
|
|
|
|
request.SetWordComplete(true);
|
2016-09-07 04:57:50 +08:00
|
|
|
} else {
|
Refactoring for for the internal command line completion API (NFC)
Summary:
This patch refactors the internal completion API. It now takes (as far as possible) a single
CompletionRequest object instead o half a dozen in/out/in-out parameters. The CompletionRequest
contains a common superset of the different parameters as far as it makes sense. This includes
the raw command line string and raw cursor position, which should make the `expr` command
possible to implement (at least without hacks that reconstruct the command line from the args).
This patch is not intended to change the observable behavior of lldb in any way. It's also as
minimal as possible and doesn't attempt to fix all the problems the API has.
Some Q&A:
Q: Why is this not fixing all the problems in the completion API?
A: Because is a blocker for the expr command completion which I want to get in ASAP. This is the
smallest patch that unblocks the expr completion patch and which allows trivial refactoring in the future.
The patch also doesn't really change the internal information flow in the API, so that hopefully
saves us from ever having to revert and resubmit this humongous patch.
Q: Can we merge all the copy-pasted code in the completion methods
(like computing the current incomplete arg) into CompletionRequest class?
A: Yes, but it's out of scope for this patch.
Q: Why the `word_complete = request.GetWordComplete(); ... ` pattern?
A: I don't want to add a getter that returns a reference to the internal integer. So we have
to use a temporary variable and the Getter/Setter instead. We don't throw exceptions
from what I can tell, so the behavior doesn't change.
Q: Why are we not owning the list of matches?
A: Because that's how the previous API works. But that should be fixed too (in another patch).
Q: Can we make the constructor simpler and compute some of the values from the plain command?
A: I think this works, but I rather want to have this in a follow up commit. Especially when making nested
request it's a bit awkward that the parsed arguments behave as both input/output (as we should in theory
propagate the changes on the nested request back to the parent request if we don't want to change the
behavior too much).
Q: Can't we pass one const request object and then just return another result object instead of mixing
them together in one in/out parameter?
A: It's hard to get keep the same behavior with that pattern, but I think we can also get a nice API with just
a single request object. If we make all input parameters read-only, we have a clear separation between what
is actually an input and what an output parameter (and hopefully we get rid of the in-out parameters).
Q: Can we throw out the 'match' variables that are not implemented according to the comment?
A: We currently just forward them as in the old code to the different methods, even though I think
they are really not used. We can easily remove and readd them once every single completion method just
takes a CompletionRequest, but for now I prefer NFC behavior from the perspective of the API user.
Reviewers: davide, jingham, labath
Reviewed By: jingham
Subscribers: mgorny, friss, lldb-commits
Differential Revision: https://reviews.llvm.org/D48796
llvm-svn: 336146
2018-07-03 05:29:56 +08:00
|
|
|
request.GetParsedLine().Shift();
|
|
|
|
request.SetCursorCharPosition(0);
|
|
|
|
request.GetParsedLine().AppendArgument(llvm::StringRef());
|
|
|
|
return cmd_obj->HandleCompletion(request);
|
2010-06-09 00:52:24 +08:00
|
|
|
}
|
2016-09-07 04:57:50 +08:00
|
|
|
}
|
2010-06-09 00:52:24 +08:00
|
|
|
}
|
2018-07-28 02:42:46 +08:00
|
|
|
return new_matches.GetSize();
|
2016-09-07 04:57:50 +08:00
|
|
|
} else {
|
2018-07-28 02:42:46 +08:00
|
|
|
StringList new_matches;
|
|
|
|
CommandObject *sub_command_object = GetSubcommandObject(arg0, &new_matches);
|
2016-09-07 04:57:50 +08:00
|
|
|
if (sub_command_object == nullptr) {
|
2018-07-28 02:42:46 +08:00
|
|
|
request.AddCompletions(new_matches);
|
|
|
|
return request.GetNumberOfMatches();
|
2016-09-07 04:57:50 +08:00
|
|
|
} else {
|
|
|
|
// Remove the one match that we got from calling GetSubcommandObject.
|
2018-07-28 02:42:46 +08:00
|
|
|
new_matches.DeleteStringAtIndex(0);
|
|
|
|
request.AddCompletions(new_matches);
|
Refactoring for for the internal command line completion API (NFC)
Summary:
This patch refactors the internal completion API. It now takes (as far as possible) a single
CompletionRequest object instead o half a dozen in/out/in-out parameters. The CompletionRequest
contains a common superset of the different parameters as far as it makes sense. This includes
the raw command line string and raw cursor position, which should make the `expr` command
possible to implement (at least without hacks that reconstruct the command line from the args).
This patch is not intended to change the observable behavior of lldb in any way. It's also as
minimal as possible and doesn't attempt to fix all the problems the API has.
Some Q&A:
Q: Why is this not fixing all the problems in the completion API?
A: Because is a blocker for the expr command completion which I want to get in ASAP. This is the
smallest patch that unblocks the expr completion patch and which allows trivial refactoring in the future.
The patch also doesn't really change the internal information flow in the API, so that hopefully
saves us from ever having to revert and resubmit this humongous patch.
Q: Can we merge all the copy-pasted code in the completion methods
(like computing the current incomplete arg) into CompletionRequest class?
A: Yes, but it's out of scope for this patch.
Q: Why the `word_complete = request.GetWordComplete(); ... ` pattern?
A: I don't want to add a getter that returns a reference to the internal integer. So we have
to use a temporary variable and the Getter/Setter instead. We don't throw exceptions
from what I can tell, so the behavior doesn't change.
Q: Why are we not owning the list of matches?
A: Because that's how the previous API works. But that should be fixed too (in another patch).
Q: Can we make the constructor simpler and compute some of the values from the plain command?
A: I think this works, but I rather want to have this in a follow up commit. Especially when making nested
request it's a bit awkward that the parsed arguments behave as both input/output (as we should in theory
propagate the changes on the nested request back to the parent request if we don't want to change the
behavior too much).
Q: Can't we pass one const request object and then just return another result object instead of mixing
them together in one in/out parameter?
A: It's hard to get keep the same behavior with that pattern, but I think we can also get a nice API with just
a single request object. If we make all input parameters read-only, we have a clear separation between what
is actually an input and what an output parameter (and hopefully we get rid of the in-out parameters).
Q: Can we throw out the 'match' variables that are not implemented according to the comment?
A: We currently just forward them as in the old code to the different methods, even though I think
they are really not used. We can easily remove and readd them once every single completion method just
takes a CompletionRequest, but for now I prefer NFC behavior from the perspective of the API user.
Reviewers: davide, jingham, labath
Reviewed By: jingham
Subscribers: mgorny, friss, lldb-commits
Differential Revision: https://reviews.llvm.org/D48796
llvm-svn: 336146
2018-07-03 05:29:56 +08:00
|
|
|
request.GetParsedLine().Shift();
|
|
|
|
request.SetCursorIndex(request.GetCursorIndex() - 1);
|
|
|
|
return sub_command_object->HandleCompletion(request);
|
2010-06-09 00:52:24 +08:00
|
|
|
}
|
2016-09-07 04:57:50 +08:00
|
|
|
}
|
2010-06-09 00:52:24 +08:00
|
|
|
}
|
|
|
|
|
2016-09-07 04:57:50 +08:00
|
|
|
const char *CommandObjectMultiword::GetRepeatCommand(Args ¤t_command_args,
|
|
|
|
uint32_t index) {
|
|
|
|
index++;
|
|
|
|
if (current_command_args.GetArgumentCount() <= index)
|
|
|
|
return nullptr;
|
|
|
|
CommandObject *sub_command_object =
|
2016-12-09 13:46:41 +08:00
|
|
|
GetSubcommandObject(current_command_args[index].ref);
|
2016-09-07 04:57:50 +08:00
|
|
|
if (sub_command_object == nullptr)
|
|
|
|
return nullptr;
|
|
|
|
return sub_command_object->GetRepeatCommand(current_command_args, index);
|
2010-07-07 11:36:20 +08:00
|
|
|
}
|
|
|
|
|
2016-11-13 10:50:32 +08:00
|
|
|
void CommandObjectMultiword::AproposAllSubCommands(llvm::StringRef prefix,
|
|
|
|
llvm::StringRef search_word,
|
2016-09-07 04:57:50 +08:00
|
|
|
StringList &commands_found,
|
|
|
|
StringList &commands_help) {
|
|
|
|
CommandObject::CommandMap::const_iterator pos;
|
|
|
|
|
|
|
|
for (pos = m_subcommand_dict.begin(); pos != m_subcommand_dict.end(); ++pos) {
|
|
|
|
const char *command_name = pos->first.c_str();
|
|
|
|
CommandObject *sub_cmd_obj = pos->second.get();
|
|
|
|
StreamString complete_command_name;
|
|
|
|
|
2016-11-15 07:23:31 +08:00
|
|
|
complete_command_name << prefix << " " << command_name;
|
2016-09-07 04:57:50 +08:00
|
|
|
|
|
|
|
if (sub_cmd_obj->HelpTextContainsWord(search_word)) {
|
2016-11-17 05:15:24 +08:00
|
|
|
commands_found.AppendString(complete_command_name.GetString());
|
2016-09-07 04:57:50 +08:00
|
|
|
commands_help.AppendString(sub_cmd_obj->GetHelp());
|
2012-10-13 10:07:45 +08:00
|
|
|
}
|
|
|
|
|
2016-09-07 04:57:50 +08:00
|
|
|
if (sub_cmd_obj->IsMultiwordObject())
|
2016-11-13 10:50:32 +08:00
|
|
|
sub_cmd_obj->AproposAllSubCommands(complete_command_name.GetString(),
|
2016-09-07 04:57:50 +08:00
|
|
|
search_word, commands_found,
|
|
|
|
commands_help);
|
|
|
|
}
|
2012-10-13 10:07:45 +08:00
|
|
|
}
|
|
|
|
|
2016-09-07 04:57:50 +08:00
|
|
|
CommandObjectProxy::CommandObjectProxy(CommandInterpreter &interpreter,
|
|
|
|
const char *name, const char *help,
|
|
|
|
const char *syntax, uint32_t flags)
|
|
|
|
: CommandObject(interpreter, name, help, syntax, flags) {}
|
|
|
|
|
2016-02-20 08:58:29 +08:00
|
|
|
CommandObjectProxy::~CommandObjectProxy() = default;
|
2012-10-13 10:07:45 +08:00
|
|
|
|
2016-11-13 04:41:02 +08:00
|
|
|
llvm::StringRef CommandObjectProxy::GetHelpLong() {
|
2016-09-07 04:57:50 +08:00
|
|
|
CommandObject *proxy_command = GetProxyCommandObject();
|
|
|
|
if (proxy_command)
|
|
|
|
return proxy_command->GetHelpLong();
|
2016-11-13 04:41:02 +08:00
|
|
|
return llvm::StringRef();
|
2012-10-13 10:07:45 +08:00
|
|
|
}
|
|
|
|
|
2016-09-07 04:57:50 +08:00
|
|
|
bool CommandObjectProxy::IsRemovable() const {
|
|
|
|
const CommandObject *proxy_command =
|
|
|
|
const_cast<CommandObjectProxy *>(this)->GetProxyCommandObject();
|
|
|
|
if (proxy_command)
|
|
|
|
return proxy_command->IsRemovable();
|
|
|
|
return false;
|
2012-10-13 10:07:45 +08:00
|
|
|
}
|
|
|
|
|
2016-09-07 04:57:50 +08:00
|
|
|
bool CommandObjectProxy::IsMultiwordObject() {
|
|
|
|
CommandObject *proxy_command = GetProxyCommandObject();
|
|
|
|
if (proxy_command)
|
|
|
|
return proxy_command->IsMultiwordObject();
|
|
|
|
return false;
|
2012-10-13 10:07:45 +08:00
|
|
|
}
|
|
|
|
|
2016-09-07 04:57:50 +08:00
|
|
|
CommandObjectMultiword *CommandObjectProxy::GetAsMultiwordCommand() {
|
|
|
|
CommandObject *proxy_command = GetProxyCommandObject();
|
|
|
|
if (proxy_command)
|
|
|
|
return proxy_command->GetAsMultiwordCommand();
|
|
|
|
return nullptr;
|
2016-04-21 04:48:05 +08:00
|
|
|
}
|
|
|
|
|
2016-09-07 04:57:50 +08:00
|
|
|
void CommandObjectProxy::GenerateHelpText(Stream &result) {
|
|
|
|
CommandObject *proxy_command = GetProxyCommandObject();
|
|
|
|
if (proxy_command)
|
|
|
|
return proxy_command->GenerateHelpText(result);
|
2015-11-05 09:18:07 +08:00
|
|
|
}
|
|
|
|
|
2016-11-13 10:50:32 +08:00
|
|
|
lldb::CommandObjectSP
|
|
|
|
CommandObjectProxy::GetSubcommandSP(llvm::StringRef sub_cmd,
|
|
|
|
StringList *matches) {
|
2016-09-07 04:57:50 +08:00
|
|
|
CommandObject *proxy_command = GetProxyCommandObject();
|
|
|
|
if (proxy_command)
|
|
|
|
return proxy_command->GetSubcommandSP(sub_cmd, matches);
|
|
|
|
return lldb::CommandObjectSP();
|
2012-10-13 10:07:45 +08:00
|
|
|
}
|
|
|
|
|
2016-11-13 10:50:32 +08:00
|
|
|
CommandObject *CommandObjectProxy::GetSubcommandObject(llvm::StringRef sub_cmd,
|
2016-09-07 04:57:50 +08:00
|
|
|
StringList *matches) {
|
|
|
|
CommandObject *proxy_command = GetProxyCommandObject();
|
|
|
|
if (proxy_command)
|
|
|
|
return proxy_command->GetSubcommandObject(sub_cmd, matches);
|
|
|
|
return nullptr;
|
2012-10-13 10:07:45 +08:00
|
|
|
}
|
|
|
|
|
2016-11-13 10:50:32 +08:00
|
|
|
void CommandObjectProxy::AproposAllSubCommands(llvm::StringRef prefix,
|
|
|
|
llvm::StringRef search_word,
|
2016-09-07 04:57:50 +08:00
|
|
|
StringList &commands_found,
|
|
|
|
StringList &commands_help) {
|
|
|
|
CommandObject *proxy_command = GetProxyCommandObject();
|
|
|
|
if (proxy_command)
|
|
|
|
return proxy_command->AproposAllSubCommands(prefix, search_word,
|
|
|
|
commands_found, commands_help);
|
2012-10-13 10:07:45 +08:00
|
|
|
}
|
|
|
|
|
2016-09-07 04:57:50 +08:00
|
|
|
bool CommandObjectProxy::LoadSubCommand(
|
2016-11-13 10:50:32 +08:00
|
|
|
llvm::StringRef cmd_name, const lldb::CommandObjectSP &command_sp) {
|
2016-09-07 04:57:50 +08:00
|
|
|
CommandObject *proxy_command = GetProxyCommandObject();
|
|
|
|
if (proxy_command)
|
|
|
|
return proxy_command->LoadSubCommand(cmd_name, command_sp);
|
|
|
|
return false;
|
2012-10-13 10:07:45 +08:00
|
|
|
}
|
|
|
|
|
2016-09-07 04:57:50 +08:00
|
|
|
bool CommandObjectProxy::WantsRawCommandString() {
|
|
|
|
CommandObject *proxy_command = GetProxyCommandObject();
|
|
|
|
if (proxy_command)
|
|
|
|
return proxy_command->WantsRawCommandString();
|
|
|
|
return false;
|
2012-10-13 10:07:45 +08:00
|
|
|
}
|
|
|
|
|
2016-09-07 04:57:50 +08:00
|
|
|
bool CommandObjectProxy::WantsCompletion() {
|
|
|
|
CommandObject *proxy_command = GetProxyCommandObject();
|
|
|
|
if (proxy_command)
|
|
|
|
return proxy_command->WantsCompletion();
|
|
|
|
return false;
|
2012-10-13 10:07:45 +08:00
|
|
|
}
|
|
|
|
|
2016-09-07 04:57:50 +08:00
|
|
|
Options *CommandObjectProxy::GetOptions() {
|
|
|
|
CommandObject *proxy_command = GetProxyCommandObject();
|
|
|
|
if (proxy_command)
|
|
|
|
return proxy_command->GetOptions();
|
|
|
|
return nullptr;
|
2012-10-13 10:07:45 +08:00
|
|
|
}
|
|
|
|
|
Refactoring for for the internal command line completion API (NFC)
Summary:
This patch refactors the internal completion API. It now takes (as far as possible) a single
CompletionRequest object instead o half a dozen in/out/in-out parameters. The CompletionRequest
contains a common superset of the different parameters as far as it makes sense. This includes
the raw command line string and raw cursor position, which should make the `expr` command
possible to implement (at least without hacks that reconstruct the command line from the args).
This patch is not intended to change the observable behavior of lldb in any way. It's also as
minimal as possible and doesn't attempt to fix all the problems the API has.
Some Q&A:
Q: Why is this not fixing all the problems in the completion API?
A: Because is a blocker for the expr command completion which I want to get in ASAP. This is the
smallest patch that unblocks the expr completion patch and which allows trivial refactoring in the future.
The patch also doesn't really change the internal information flow in the API, so that hopefully
saves us from ever having to revert and resubmit this humongous patch.
Q: Can we merge all the copy-pasted code in the completion methods
(like computing the current incomplete arg) into CompletionRequest class?
A: Yes, but it's out of scope for this patch.
Q: Why the `word_complete = request.GetWordComplete(); ... ` pattern?
A: I don't want to add a getter that returns a reference to the internal integer. So we have
to use a temporary variable and the Getter/Setter instead. We don't throw exceptions
from what I can tell, so the behavior doesn't change.
Q: Why are we not owning the list of matches?
A: Because that's how the previous API works. But that should be fixed too (in another patch).
Q: Can we make the constructor simpler and compute some of the values from the plain command?
A: I think this works, but I rather want to have this in a follow up commit. Especially when making nested
request it's a bit awkward that the parsed arguments behave as both input/output (as we should in theory
propagate the changes on the nested request back to the parent request if we don't want to change the
behavior too much).
Q: Can't we pass one const request object and then just return another result object instead of mixing
them together in one in/out parameter?
A: It's hard to get keep the same behavior with that pattern, but I think we can also get a nice API with just
a single request object. If we make all input parameters read-only, we have a clear separation between what
is actually an input and what an output parameter (and hopefully we get rid of the in-out parameters).
Q: Can we throw out the 'match' variables that are not implemented according to the comment?
A: We currently just forward them as in the old code to the different methods, even though I think
they are really not used. We can easily remove and readd them once every single completion method just
takes a CompletionRequest, but for now I prefer NFC behavior from the perspective of the API user.
Reviewers: davide, jingham, labath
Reviewed By: jingham
Subscribers: mgorny, friss, lldb-commits
Differential Revision: https://reviews.llvm.org/D48796
llvm-svn: 336146
2018-07-03 05:29:56 +08:00
|
|
|
int CommandObjectProxy::HandleCompletion(CompletionRequest &request) {
|
2016-09-07 04:57:50 +08:00
|
|
|
CommandObject *proxy_command = GetProxyCommandObject();
|
|
|
|
if (proxy_command)
|
Refactoring for for the internal command line completion API (NFC)
Summary:
This patch refactors the internal completion API. It now takes (as far as possible) a single
CompletionRequest object instead o half a dozen in/out/in-out parameters. The CompletionRequest
contains a common superset of the different parameters as far as it makes sense. This includes
the raw command line string and raw cursor position, which should make the `expr` command
possible to implement (at least without hacks that reconstruct the command line from the args).
This patch is not intended to change the observable behavior of lldb in any way. It's also as
minimal as possible and doesn't attempt to fix all the problems the API has.
Some Q&A:
Q: Why is this not fixing all the problems in the completion API?
A: Because is a blocker for the expr command completion which I want to get in ASAP. This is the
smallest patch that unblocks the expr completion patch and which allows trivial refactoring in the future.
The patch also doesn't really change the internal information flow in the API, so that hopefully
saves us from ever having to revert and resubmit this humongous patch.
Q: Can we merge all the copy-pasted code in the completion methods
(like computing the current incomplete arg) into CompletionRequest class?
A: Yes, but it's out of scope for this patch.
Q: Why the `word_complete = request.GetWordComplete(); ... ` pattern?
A: I don't want to add a getter that returns a reference to the internal integer. So we have
to use a temporary variable and the Getter/Setter instead. We don't throw exceptions
from what I can tell, so the behavior doesn't change.
Q: Why are we not owning the list of matches?
A: Because that's how the previous API works. But that should be fixed too (in another patch).
Q: Can we make the constructor simpler and compute some of the values from the plain command?
A: I think this works, but I rather want to have this in a follow up commit. Especially when making nested
request it's a bit awkward that the parsed arguments behave as both input/output (as we should in theory
propagate the changes on the nested request back to the parent request if we don't want to change the
behavior too much).
Q: Can't we pass one const request object and then just return another result object instead of mixing
them together in one in/out parameter?
A: It's hard to get keep the same behavior with that pattern, but I think we can also get a nice API with just
a single request object. If we make all input parameters read-only, we have a clear separation between what
is actually an input and what an output parameter (and hopefully we get rid of the in-out parameters).
Q: Can we throw out the 'match' variables that are not implemented according to the comment?
A: We currently just forward them as in the old code to the different methods, even though I think
they are really not used. We can easily remove and readd them once every single completion method just
takes a CompletionRequest, but for now I prefer NFC behavior from the perspective of the API user.
Reviewers: davide, jingham, labath
Reviewed By: jingham
Subscribers: mgorny, friss, lldb-commits
Differential Revision: https://reviews.llvm.org/D48796
llvm-svn: 336146
2018-07-03 05:29:56 +08:00
|
|
|
return proxy_command->HandleCompletion(request);
|
2016-09-07 04:57:50 +08:00
|
|
|
return 0;
|
2012-10-13 10:07:45 +08:00
|
|
|
}
|
2016-02-20 08:58:29 +08:00
|
|
|
|
2016-09-07 04:57:50 +08:00
|
|
|
int CommandObjectProxy::HandleArgumentCompletion(
|
Refactoring for for the internal command line completion API (NFC)
Summary:
This patch refactors the internal completion API. It now takes (as far as possible) a single
CompletionRequest object instead o half a dozen in/out/in-out parameters. The CompletionRequest
contains a common superset of the different parameters as far as it makes sense. This includes
the raw command line string and raw cursor position, which should make the `expr` command
possible to implement (at least without hacks that reconstruct the command line from the args).
This patch is not intended to change the observable behavior of lldb in any way. It's also as
minimal as possible and doesn't attempt to fix all the problems the API has.
Some Q&A:
Q: Why is this not fixing all the problems in the completion API?
A: Because is a blocker for the expr command completion which I want to get in ASAP. This is the
smallest patch that unblocks the expr completion patch and which allows trivial refactoring in the future.
The patch also doesn't really change the internal information flow in the API, so that hopefully
saves us from ever having to revert and resubmit this humongous patch.
Q: Can we merge all the copy-pasted code in the completion methods
(like computing the current incomplete arg) into CompletionRequest class?
A: Yes, but it's out of scope for this patch.
Q: Why the `word_complete = request.GetWordComplete(); ... ` pattern?
A: I don't want to add a getter that returns a reference to the internal integer. So we have
to use a temporary variable and the Getter/Setter instead. We don't throw exceptions
from what I can tell, so the behavior doesn't change.
Q: Why are we not owning the list of matches?
A: Because that's how the previous API works. But that should be fixed too (in another patch).
Q: Can we make the constructor simpler and compute some of the values from the plain command?
A: I think this works, but I rather want to have this in a follow up commit. Especially when making nested
request it's a bit awkward that the parsed arguments behave as both input/output (as we should in theory
propagate the changes on the nested request back to the parent request if we don't want to change the
behavior too much).
Q: Can't we pass one const request object and then just return another result object instead of mixing
them together in one in/out parameter?
A: It's hard to get keep the same behavior with that pattern, but I think we can also get a nice API with just
a single request object. If we make all input parameters read-only, we have a clear separation between what
is actually an input and what an output parameter (and hopefully we get rid of the in-out parameters).
Q: Can we throw out the 'match' variables that are not implemented according to the comment?
A: We currently just forward them as in the old code to the different methods, even though I think
they are really not used. We can easily remove and readd them once every single completion method just
takes a CompletionRequest, but for now I prefer NFC behavior from the perspective of the API user.
Reviewers: davide, jingham, labath
Reviewed By: jingham
Subscribers: mgorny, friss, lldb-commits
Differential Revision: https://reviews.llvm.org/D48796
llvm-svn: 336146
2018-07-03 05:29:56 +08:00
|
|
|
CompletionRequest &request, OptionElementVector &opt_element_vector) {
|
2016-09-07 04:57:50 +08:00
|
|
|
CommandObject *proxy_command = GetProxyCommandObject();
|
|
|
|
if (proxy_command)
|
Refactoring for for the internal command line completion API (NFC)
Summary:
This patch refactors the internal completion API. It now takes (as far as possible) a single
CompletionRequest object instead o half a dozen in/out/in-out parameters. The CompletionRequest
contains a common superset of the different parameters as far as it makes sense. This includes
the raw command line string and raw cursor position, which should make the `expr` command
possible to implement (at least without hacks that reconstruct the command line from the args).
This patch is not intended to change the observable behavior of lldb in any way. It's also as
minimal as possible and doesn't attempt to fix all the problems the API has.
Some Q&A:
Q: Why is this not fixing all the problems in the completion API?
A: Because is a blocker for the expr command completion which I want to get in ASAP. This is the
smallest patch that unblocks the expr completion patch and which allows trivial refactoring in the future.
The patch also doesn't really change the internal information flow in the API, so that hopefully
saves us from ever having to revert and resubmit this humongous patch.
Q: Can we merge all the copy-pasted code in the completion methods
(like computing the current incomplete arg) into CompletionRequest class?
A: Yes, but it's out of scope for this patch.
Q: Why the `word_complete = request.GetWordComplete(); ... ` pattern?
A: I don't want to add a getter that returns a reference to the internal integer. So we have
to use a temporary variable and the Getter/Setter instead. We don't throw exceptions
from what I can tell, so the behavior doesn't change.
Q: Why are we not owning the list of matches?
A: Because that's how the previous API works. But that should be fixed too (in another patch).
Q: Can we make the constructor simpler and compute some of the values from the plain command?
A: I think this works, but I rather want to have this in a follow up commit. Especially when making nested
request it's a bit awkward that the parsed arguments behave as both input/output (as we should in theory
propagate the changes on the nested request back to the parent request if we don't want to change the
behavior too much).
Q: Can't we pass one const request object and then just return another result object instead of mixing
them together in one in/out parameter?
A: It's hard to get keep the same behavior with that pattern, but I think we can also get a nice API with just
a single request object. If we make all input parameters read-only, we have a clear separation between what
is actually an input and what an output parameter (and hopefully we get rid of the in-out parameters).
Q: Can we throw out the 'match' variables that are not implemented according to the comment?
A: We currently just forward them as in the old code to the different methods, even though I think
they are really not used. We can easily remove and readd them once every single completion method just
takes a CompletionRequest, but for now I prefer NFC behavior from the perspective of the API user.
Reviewers: davide, jingham, labath
Reviewed By: jingham
Subscribers: mgorny, friss, lldb-commits
Differential Revision: https://reviews.llvm.org/D48796
llvm-svn: 336146
2018-07-03 05:29:56 +08:00
|
|
|
return proxy_command->HandleArgumentCompletion(request, opt_element_vector);
|
2016-09-07 04:57:50 +08:00
|
|
|
return 0;
|
2012-10-13 10:07:45 +08:00
|
|
|
}
|
|
|
|
|
2016-09-07 04:57:50 +08:00
|
|
|
const char *CommandObjectProxy::GetRepeatCommand(Args ¤t_command_args,
|
|
|
|
uint32_t index) {
|
|
|
|
CommandObject *proxy_command = GetProxyCommandObject();
|
|
|
|
if (proxy_command)
|
|
|
|
return proxy_command->GetRepeatCommand(current_command_args, index);
|
|
|
|
return nullptr;
|
2012-10-13 10:07:45 +08:00
|
|
|
}
|
|
|
|
|
2016-09-07 04:57:50 +08:00
|
|
|
bool CommandObjectProxy::Execute(const char *args_string,
|
|
|
|
CommandReturnObject &result) {
|
|
|
|
CommandObject *proxy_command = GetProxyCommandObject();
|
|
|
|
if (proxy_command)
|
|
|
|
return proxy_command->Execute(args_string, result);
|
|
|
|
result.AppendError("command is not implemented");
|
|
|
|
result.SetStatus(eReturnStatusFailed);
|
|
|
|
return false;
|
2012-10-13 10:07:45 +08:00
|
|
|
}
|