| //===-- CommandObjectSyntax.cpp ---------------------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "CommandObjectSyntax.h" |
| |
| // C Includes |
| // C++ Includes |
| // Other libraries and framework includes |
| // Project includes |
| #include "lldb/Interpreter/Args.h" |
| #include "lldb/Interpreter/Options.h" |
| |
| #include "lldb/Interpreter/CommandInterpreter.h" |
| #include "lldb/Interpreter/CommandReturnObject.h" |
| #include "lldb/Interpreter/CommandObjectMultiword.h" |
| |
| using namespace lldb; |
| using namespace lldb_private; |
| |
| //------------------------------------------------------------------------- |
| // CommandObjectSyntax |
| //------------------------------------------------------------------------- |
| |
| CommandObjectSyntax::CommandObjectSyntax (CommandInterpreter &interpreter) : |
| CommandObject (interpreter, |
| "syntax", |
| "Shows the correct syntax for a given debugger command.", |
| "syntax <command>") |
| { |
| CommandArgumentEntry arg; |
| CommandArgumentData command_arg; |
| |
| // Define the first (and only) variant of this arg. |
| command_arg.arg_type = eArgTypeCommandName; |
| command_arg.arg_repetition = eArgRepeatPlain; |
| |
| // There is only one variant this argument could be; put it into the argument entry. |
| arg.push_back (command_arg); |
| |
| // Push the data for the first argument into the m_arguments vector. |
| m_arguments.push_back (arg); |
| } |
| |
| CommandObjectSyntax::~CommandObjectSyntax() |
| { |
| } |
| |
| |
| bool |
| CommandObjectSyntax::Execute |
| ( |
| Args& command, |
| CommandReturnObject &result |
| ) |
| { |
| CommandObject::CommandMap::iterator pos; |
| CommandObject *cmd_obj; |
| const int argc = command.GetArgumentCount(); |
| |
| if (argc > 0) |
| { |
| cmd_obj = m_interpreter.GetCommandObject (command.GetArgumentAtIndex(0)); |
| bool all_okay = true; |
| for (int i = 1; i < argc; ++i) |
| { |
| std::string sub_command = command.GetArgumentAtIndex (i); |
| if (! cmd_obj->IsMultiwordObject()) |
| all_okay = false; |
| else |
| { |
| pos = ((CommandObjectMultiword *) cmd_obj)->m_subcommand_dict.find (sub_command); |
| if (pos != ((CommandObjectMultiword *) cmd_obj)->m_subcommand_dict.end()) |
| cmd_obj = pos->second.get(); |
| else |
| all_okay = false; |
| } |
| } |
| |
| if (all_okay && (cmd_obj != NULL)) |
| { |
| Stream &output_strm = result.GetOutputStream(); |
| if (cmd_obj->GetOptions() != NULL) |
| { |
| output_strm.Printf ("\nSyntax: %s\n", cmd_obj->GetSyntax()); |
| output_strm.Printf ("(Try 'help %s' for more information on command options syntax.)\n", |
| cmd_obj->GetCommandName()); |
| result.SetStatus (eReturnStatusSuccessFinishNoResult); |
| } |
| else |
| { |
| output_strm.Printf ("\nSyntax: %s\n", cmd_obj->GetSyntax()); |
| result.SetStatus (eReturnStatusSuccessFinishNoResult); |
| } |
| } |
| else |
| { |
| std::string cmd_string; |
| command.GetCommandString (cmd_string); |
| result.AppendErrorWithFormat ("'%s' is not a known command.\n", cmd_string.c_str()); |
| result.AppendError ("Try 'help' to see a current list of commands."); |
| result.SetStatus (eReturnStatusFailed); |
| } |
| } |
| else |
| { |
| result.AppendError ("Must call 'syntax' with a valid command."); |
| result.SetStatus (eReturnStatusFailed); |
| } |
| |
| return result.Succeeded(); |
| } |