diff options
Diffstat (limited to 'source/Commands/CommandObjectSyntax.cpp')
| -rw-r--r-- | source/Commands/CommandObjectSyntax.cpp | 157 |
1 files changed, 69 insertions, 88 deletions
diff --git a/source/Commands/CommandObjectSyntax.cpp b/source/Commands/CommandObjectSyntax.cpp index c238bccfb5dd..2b83b1b8786b 100644 --- a/source/Commands/CommandObjectSyntax.cpp +++ b/source/Commands/CommandObjectSyntax.cpp @@ -14,10 +14,10 @@ #include "CommandObjectSyntax.h" #include "CommandObjectHelp.h" #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" +#include "lldb/Interpreter/CommandReturnObject.h" +#include "lldb/Interpreter/Options.h" using namespace lldb; using namespace lldb_private; @@ -26,97 +26,78 @@ using namespace lldb_private; // CommandObjectSyntax //------------------------------------------------------------------------- -CommandObjectSyntax::CommandObjectSyntax (CommandInterpreter &interpreter) : - CommandObjectParsed (interpreter, - "syntax", - "Shows the correct syntax for a given debugger command.", - "syntax <command>") -{ - CommandArgumentEntry arg; - CommandArgumentData command_arg; +CommandObjectSyntax::CommandObjectSyntax(CommandInterpreter &interpreter) + : CommandObjectParsed( + 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; + // 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); + // 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); + // Push the data for the first argument into the m_arguments vector. + m_arguments.push_back(arg); } CommandObjectSyntax::~CommandObjectSyntax() = default; -bool -CommandObjectSyntax::DoExecute (Args& command, CommandReturnObject &result) -{ - CommandObject::CommandMap::iterator pos; - CommandObject *cmd_obj; - const size_t argc = command.GetArgumentCount(); - - if (argc > 0) - { - cmd_obj = m_interpreter.GetCommandObject (command.GetArgumentAtIndex(0)); - bool all_okay = true; - for (size_t i = 1; i < argc; ++i) - { - std::string sub_command = command.GetArgumentAtIndex (i); - if (!cmd_obj->IsMultiwordObject()) - { - all_okay = false; - break; - } - else - { - cmd_obj = cmd_obj->GetSubcommandObject(sub_command.c_str()); - if (!cmd_obj) - { - all_okay = false; - break; - } - } - } - - if (all_okay && (cmd_obj != nullptr)) - { - Stream &output_strm = result.GetOutputStream(); - if (cmd_obj->GetOptions() != nullptr) - { - 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); - - StreamString error_msg_stream; - const bool generate_apropos = true; - const bool generate_type_lookup = false; - CommandObjectHelp::GenerateAdditionalHelpAvenuesMessage(&error_msg_stream, - cmd_string.c_str(), - nullptr, - nullptr, - generate_apropos, - generate_type_lookup); - result.AppendErrorWithFormat ("%s", error_msg_stream.GetData()); - result.SetStatus (eReturnStatusFailed); - } - } - else - { - result.AppendError ("Must call 'syntax' with a valid command."); - result.SetStatus (eReturnStatusFailed); - } - - return result.Succeeded(); +bool CommandObjectSyntax::DoExecute(Args &command, + CommandReturnObject &result) { + CommandObject::CommandMap::iterator pos; + CommandObject *cmd_obj; + const size_t argc = command.GetArgumentCount(); + + if (argc == 0) { + result.AppendError("Must call 'syntax' with a valid command."); + result.SetStatus(eReturnStatusFailed); + return false; + } + + cmd_obj = m_interpreter.GetCommandObject(command[0].ref); + bool all_okay = llvm::all_of( + command.entries().drop_front(), [&cmd_obj](const Args::ArgEntry &e) { + if (!cmd_obj || !cmd_obj->IsMultiwordObject()) + return false; + + if (!(cmd_obj = cmd_obj->GetSubcommandObject(e.ref))) + return false; + + return true; + }); + + if (!all_okay) { + std::string cmd_string; + command.GetCommandString(cmd_string); + + StreamString error_msg_stream; + const bool generate_apropos = true; + const bool generate_type_lookup = false; + CommandObjectHelp::GenerateAdditionalHelpAvenuesMessage( + &error_msg_stream, cmd_string, "", "", generate_apropos, + generate_type_lookup); + result.AppendErrorWithFormat("%s", error_msg_stream.GetData()); + result.SetStatus(eReturnStatusFailed); + return false; + } + + Stream &output_strm = result.GetOutputStream(); + if (cmd_obj->GetOptions() != nullptr) { + output_strm.Printf("\nSyntax: %s\n", cmd_obj->GetSyntax().str().c_str()); + output_strm.Printf( + "(Try 'help %s' for more information on command options syntax.)\n", + cmd_obj->GetCommandName().str().c_str()); + result.SetStatus(eReturnStatusSuccessFinishNoResult); + } else { + output_strm.Printf("\nSyntax: %s\n", cmd_obj->GetSyntax().str().c_str()); + result.SetStatus(eReturnStatusSuccessFinishNoResult); + } + + return result.Succeeded(); } |