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llvm-project/lldb/source/Interpreter/CommandObject.cpp
Pete Lawrence 463a02bc22
[lldb] Part 1 of 2 - Refactor CommandObject::Execute(...) return void (not bool) (#69989) 
[lldb] Part 1 of 2 - Refactor `CommandObject::Execute(...)` to return
`void` instead of ~~`bool`~~

Justifications:
- The code doesn't ultimately apply the `true`/`false` return values.
- The methods already pass around a `CommandReturnObject`, typically
with a `result` parameter.
- Each command return object already contains:
	- A more precise status
	- The error code(s) that apply to that status

Part 2 refactors the `CommandObject::DoExecute(...)` method.
- See
[https://github.com/llvm/llvm-project/pull/69991](https://github.com/llvm/llvm-project/pull/69991)

rdar://117378957
2023-10-25 15:55:27 -07:00

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//===-- CommandObject.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 "lldb/Interpreter/CommandObject.h"
#include <map>
#include <sstream>
#include <string>
#include <cctype>
#include <cstdlib>
#include "lldb/Core/Address.h"
#include "lldb/Interpreter/CommandOptionArgumentTable.h"
#include "lldb/Interpreter/Options.h"
#include "lldb/Utility/ArchSpec.h"
#include "llvm/ADT/ScopeExit.h"
// These are for the Sourcename completers.
// FIXME: Make a separate file for the completers.
#include "lldb/DataFormatters/FormatManager.h"
#include "lldb/Target/Process.h"
#include "lldb/Target/Target.h"
#include "lldb/Utility/FileSpec.h"
#include "lldb/Utility/FileSpecList.h"
#include "lldb/Target/Language.h"
#include "lldb/Interpreter/CommandInterpreter.h"
#include "lldb/Interpreter/CommandOptionArgumentTable.h"
#include "lldb/Interpreter/CommandReturnObject.h"
using namespace lldb;
using namespace lldb_private;
// CommandObject
CommandObject::CommandObject(CommandInterpreter &interpreter,
llvm::StringRef name, llvm::StringRef help,
llvm::StringRef syntax, uint32_t flags)
: m_interpreter(interpreter), m_cmd_name(std::string(name)),
m_flags(flags), m_deprecated_command_override_callback(nullptr),
m_command_override_callback(nullptr), m_command_override_baton(nullptr) {
m_cmd_help_short = std::string(help);
m_cmd_syntax = std::string(syntax);
}
Debugger &CommandObject::GetDebugger() { return m_interpreter.GetDebugger(); }
llvm::StringRef CommandObject::GetHelp() { return m_cmd_help_short; }
llvm::StringRef CommandObject::GetHelpLong() { return m_cmd_help_long; }
llvm::StringRef CommandObject::GetSyntax() {
if (!m_cmd_syntax.empty())
return m_cmd_syntax;
StreamString syntax_str;
syntax_str.PutCString(GetCommandName());
if (!IsDashDashCommand() && GetOptions() != nullptr)
syntax_str.PutCString(" <cmd-options>");
if (!m_arguments.empty()) {
syntax_str.PutCString(" ");
if (!IsDashDashCommand() && WantsRawCommandString() && GetOptions() &&
GetOptions()->NumCommandOptions())
syntax_str.PutCString("-- ");
GetFormattedCommandArguments(syntax_str);
}
m_cmd_syntax = std::string(syntax_str.GetString());
return m_cmd_syntax;
}
llvm::StringRef CommandObject::GetCommandName() const { return m_cmd_name; }
void CommandObject::SetCommandName(llvm::StringRef name) {
m_cmd_name = std::string(name);
}
void CommandObject::SetHelp(llvm::StringRef str) {
m_cmd_help_short = std::string(str);
}
void CommandObject::SetHelpLong(llvm::StringRef str) {
m_cmd_help_long = std::string(str);
}
void CommandObject::SetSyntax(llvm::StringRef str) {
m_cmd_syntax = std::string(str);
}
Options *CommandObject::GetOptions() {
// By default commands don't have options unless this virtual function is
// overridden by base classes.
return nullptr;
}
bool CommandObject::ParseOptions(Args &args, CommandReturnObject &result) {
// See if the subclass has options?
Options *options = GetOptions();
if (options != nullptr) {
Status error;
auto exe_ctx = GetCommandInterpreter().GetExecutionContext();
options->NotifyOptionParsingStarting(&exe_ctx);
const bool require_validation = true;
llvm::Expected<Args> args_or = options->Parse(
args, &exe_ctx, GetCommandInterpreter().GetPlatform(true),
require_validation);
if (args_or) {
args = std::move(*args_or);
error = options->NotifyOptionParsingFinished(&exe_ctx);
} else
error = args_or.takeError();
if (error.Success()) {
if (options->VerifyOptions(result))
return true;
} else {
const char *error_cstr = error.AsCString();
if (error_cstr) {
// We got an error string, lets use that
result.AppendError(error_cstr);
} else {
// No error string, output the usage information into result
options->GenerateOptionUsage(
result.GetErrorStream(), *this,
GetCommandInterpreter().GetDebugger().GetTerminalWidth());
}
}
result.SetStatus(eReturnStatusFailed);
return false;
}
return true;
}
bool CommandObject::CheckRequirements(CommandReturnObject &result) {
// Nothing should be stored in m_exe_ctx between running commands as
// m_exe_ctx has shared pointers to the target, process, thread and frame and
// we don't want any CommandObject instances to keep any of these objects
// around longer than for a single command. Every command should call
// CommandObject::Cleanup() after it has completed.
assert(!m_exe_ctx.GetTargetPtr());
assert(!m_exe_ctx.GetProcessPtr());
assert(!m_exe_ctx.GetThreadPtr());
assert(!m_exe_ctx.GetFramePtr());
// Lock down the interpreter's execution context prior to running the command
// so we guarantee the selected target, process, thread and frame can't go
// away during the execution
m_exe_ctx = m_interpreter.GetExecutionContext();
const uint32_t flags = GetFlags().Get();
if (flags & (eCommandRequiresTarget | eCommandRequiresProcess |
eCommandRequiresThread | eCommandRequiresFrame |
eCommandTryTargetAPILock)) {
if ((flags & eCommandRequiresTarget) && !m_exe_ctx.HasTargetScope()) {
result.AppendError(GetInvalidTargetDescription());
return false;
}
if ((flags & eCommandRequiresProcess) && !m_exe_ctx.HasProcessScope()) {
if (!m_exe_ctx.HasTargetScope())
result.AppendError(GetInvalidTargetDescription());
else
result.AppendError(GetInvalidProcessDescription());
return false;
}
if ((flags & eCommandRequiresThread) && !m_exe_ctx.HasThreadScope()) {
if (!m_exe_ctx.HasTargetScope())
result.AppendError(GetInvalidTargetDescription());
else if (!m_exe_ctx.HasProcessScope())
result.AppendError(GetInvalidProcessDescription());
else
result.AppendError(GetInvalidThreadDescription());
return false;
}
if ((flags & eCommandRequiresFrame) && !m_exe_ctx.HasFrameScope()) {
if (!m_exe_ctx.HasTargetScope())
result.AppendError(GetInvalidTargetDescription());
else if (!m_exe_ctx.HasProcessScope())
result.AppendError(GetInvalidProcessDescription());
else if (!m_exe_ctx.HasThreadScope())
result.AppendError(GetInvalidThreadDescription());
else
result.AppendError(GetInvalidFrameDescription());
return false;
}
if ((flags & eCommandRequiresRegContext) &&
(m_exe_ctx.GetRegisterContext() == nullptr)) {
result.AppendError(GetInvalidRegContextDescription());
return false;
}
if (flags & eCommandTryTargetAPILock) {
Target *target = m_exe_ctx.GetTargetPtr();
if (target)
m_api_locker =
std::unique_lock<std::recursive_mutex>(target->GetAPIMutex());
}
}
if (GetFlags().AnySet(eCommandProcessMustBeLaunched |
eCommandProcessMustBePaused)) {
Process *process = m_interpreter.GetExecutionContext().GetProcessPtr();
if (process == nullptr) {
// A process that is not running is considered paused.
if (GetFlags().Test(eCommandProcessMustBeLaunched)) {
result.AppendError("Process must exist.");
return false;
}
} else {
StateType state = process->GetState();
switch (state) {
case eStateInvalid:
case eStateSuspended:
case eStateCrashed:
case eStateStopped:
break;
case eStateConnected:
case eStateAttaching:
case eStateLaunching:
case eStateDetached:
case eStateExited:
case eStateUnloaded:
if (GetFlags().Test(eCommandProcessMustBeLaunched)) {
result.AppendError("Process must be launched.");
return false;
}
break;
case eStateRunning:
case eStateStepping:
if (GetFlags().Test(eCommandProcessMustBePaused)) {
result.AppendError("Process is running. Use 'process interrupt' to "
"pause execution.");
return false;
}
}
}
}
if (GetFlags().Test(eCommandProcessMustBeTraced)) {
Target *target = m_exe_ctx.GetTargetPtr();
if (target && !target->GetTrace()) {
result.AppendError("Process is not being traced.");
return false;
}
}
return true;
}
void CommandObject::Cleanup() {
m_exe_ctx.Clear();
if (m_api_locker.owns_lock())
m_api_locker.unlock();
}
void CommandObject::HandleCompletion(CompletionRequest &request) {
m_exe_ctx = m_interpreter.GetExecutionContext();
auto reset_ctx = llvm::make_scope_exit([this]() { Cleanup(); });
// Default implementation of WantsCompletion() is !WantsRawCommandString().
// Subclasses who want raw command string but desire, for example, argument
// completion should override WantsCompletion() to return true, instead.
if (WantsRawCommandString() && !WantsCompletion()) {
// FIXME: Abstract telling the completion to insert the completion
// character.
return;
} else {
// Can we do anything generic with the options?
Options *cur_options = GetOptions();
CommandReturnObject result(m_interpreter.GetDebugger().GetUseColor());
OptionElementVector opt_element_vector;
if (cur_options != nullptr) {
opt_element_vector = cur_options->ParseForCompletion(
request.GetParsedLine(), request.GetCursorIndex());
bool handled_by_options = cur_options->HandleOptionCompletion(
request, opt_element_vector, GetCommandInterpreter());
if (handled_by_options)
return;
}
// If we got here, the last word is not an option or an option argument.
HandleArgumentCompletion(request, opt_element_vector);
}
}
bool CommandObject::HelpTextContainsWord(llvm::StringRef search_word,
bool search_short_help,
bool search_long_help,
bool search_syntax,
bool search_options) {
std::string options_usage_help;
bool found_word = false;
llvm::StringRef short_help = GetHelp();
llvm::StringRef long_help = GetHelpLong();
llvm::StringRef syntax_help = GetSyntax();
if (search_short_help && short_help.contains_insensitive(search_word))
found_word = true;
else if (search_long_help && long_help.contains_insensitive(search_word))
found_word = true;
else if (search_syntax && syntax_help.contains_insensitive(search_word))
found_word = true;
if (!found_word && search_options && GetOptions() != nullptr) {
StreamString usage_help;
GetOptions()->GenerateOptionUsage(
usage_help, *this,
GetCommandInterpreter().GetDebugger().GetTerminalWidth());
if (!usage_help.Empty()) {
llvm::StringRef usage_text = usage_help.GetString();
if (usage_text.contains_insensitive(search_word))
found_word = true;
}
}
return found_word;
}
bool CommandObject::ParseOptionsAndNotify(Args &args,
CommandReturnObject &result,
OptionGroupOptions &group_options,
ExecutionContext &exe_ctx) {
if (!ParseOptions(args, result))
return false;
Status error(group_options.NotifyOptionParsingFinished(&exe_ctx));
if (error.Fail()) {
result.AppendError(error.AsCString());
return false;
}
return true;
}
int CommandObject::GetNumArgumentEntries() { return m_arguments.size(); }
CommandObject::CommandArgumentEntry *
CommandObject::GetArgumentEntryAtIndex(int idx) {
if (static_cast<size_t>(idx) < m_arguments.size())
return &(m_arguments[idx]);
return nullptr;
}
const CommandObject::ArgumentTableEntry *
CommandObject::FindArgumentDataByType(CommandArgumentType arg_type) {
for (int i = 0; i < eArgTypeLastArg; ++i)
if (g_argument_table[i].arg_type == arg_type)
return &(g_argument_table[i]);
return nullptr;
}
void CommandObject::GetArgumentHelp(Stream &str, CommandArgumentType arg_type,
CommandInterpreter &interpreter) {
const ArgumentTableEntry *entry = &(g_argument_table[arg_type]);
// The table is *supposed* to be kept in arg_type order, but someone *could*
// have messed it up...
if (entry->arg_type != arg_type)
entry = CommandObject::FindArgumentDataByType(arg_type);
if (!entry)
return;
StreamString name_str;
name_str.Printf("<%s>", entry->arg_name);
if (entry->help_function) {
llvm::StringRef help_text = entry->help_function();
if (!entry->help_function.self_formatting) {
interpreter.OutputFormattedHelpText(str, name_str.GetString(), "--",
help_text, name_str.GetSize());
} else {
interpreter.OutputHelpText(str, name_str.GetString(), "--", help_text,
name_str.GetSize());
}
} else {
interpreter.OutputFormattedHelpText(str, name_str.GetString(), "--",
entry->help_text, name_str.GetSize());
// Print enum values and their description if any.
OptionEnumValues enum_values = g_argument_table[arg_type].enum_values;
if (!enum_values.empty()) {
str.EOL();
size_t longest = 0;
for (const OptionEnumValueElement &element : enum_values)
longest =
std::max(longest, llvm::StringRef(element.string_value).size());
str.IndentMore(5);
for (const OptionEnumValueElement &element : enum_values) {
str.Indent();
interpreter.OutputHelpText(str, element.string_value, ":",
element.usage, longest);
}
str.IndentLess(5);
str.EOL();
}
}
}
const char *CommandObject::GetArgumentName(CommandArgumentType arg_type) {
const ArgumentTableEntry *entry = &(g_argument_table[arg_type]);
// The table is *supposed* to be kept in arg_type order, but someone *could*
// have messed it up...
if (entry->arg_type != arg_type)
entry = CommandObject::FindArgumentDataByType(arg_type);
if (entry)
return entry->arg_name;
return nullptr;
}
bool CommandObject::IsPairType(ArgumentRepetitionType arg_repeat_type) {
return (arg_repeat_type == eArgRepeatPairPlain) ||
(arg_repeat_type == eArgRepeatPairOptional) ||
(arg_repeat_type == eArgRepeatPairPlus) ||
(arg_repeat_type == eArgRepeatPairStar) ||
(arg_repeat_type == eArgRepeatPairRange) ||
(arg_repeat_type == eArgRepeatPairRangeOptional);
}
static CommandObject::CommandArgumentEntry
OptSetFiltered(uint32_t opt_set_mask,
CommandObject::CommandArgumentEntry &cmd_arg_entry) {
CommandObject::CommandArgumentEntry ret_val;
for (unsigned i = 0; i < cmd_arg_entry.size(); ++i)
if (opt_set_mask & cmd_arg_entry[i].arg_opt_set_association)
ret_val.push_back(cmd_arg_entry[i]);
return ret_val;
}
// Default parameter value of opt_set_mask is LLDB_OPT_SET_ALL, which means
// take all the argument data into account. On rare cases where some argument
// sticks with certain option sets, this function returns the option set
// filtered args.
void CommandObject::GetFormattedCommandArguments(Stream &str,
uint32_t opt_set_mask) {
int num_args = m_arguments.size();
for (int i = 0; i < num_args; ++i) {
if (i > 0)
str.Printf(" ");
CommandArgumentEntry arg_entry =
opt_set_mask == LLDB_OPT_SET_ALL
? m_arguments[i]
: OptSetFiltered(opt_set_mask, m_arguments[i]);
// This argument is not associated with the current option set, so skip it.
if (arg_entry.empty())
continue;
int num_alternatives = arg_entry.size();
if ((num_alternatives == 2) && IsPairType(arg_entry[0].arg_repetition)) {
const char *first_name = GetArgumentName(arg_entry[0].arg_type);
const char *second_name = GetArgumentName(arg_entry[1].arg_type);
switch (arg_entry[0].arg_repetition) {
case eArgRepeatPairPlain:
str.Printf("<%s> <%s>", first_name, second_name);
break;
case eArgRepeatPairOptional:
str.Printf("[<%s> <%s>]", first_name, second_name);
break;
case eArgRepeatPairPlus:
str.Printf("<%s> <%s> [<%s> <%s> [...]]", first_name, second_name,
first_name, second_name);
break;
case eArgRepeatPairStar:
str.Printf("[<%s> <%s> [<%s> <%s> [...]]]", first_name, second_name,
first_name, second_name);
break;
case eArgRepeatPairRange:
str.Printf("<%s_1> <%s_1> ... <%s_n> <%s_n>", first_name, second_name,
first_name, second_name);
break;
case eArgRepeatPairRangeOptional:
str.Printf("[<%s_1> <%s_1> ... <%s_n> <%s_n>]", first_name, second_name,
first_name, second_name);
break;
// Explicitly test for all the rest of the cases, so if new types get
// added we will notice the missing case statement(s).
case eArgRepeatPlain:
case eArgRepeatOptional:
case eArgRepeatPlus:
case eArgRepeatStar:
case eArgRepeatRange:
// These should not be reached, as they should fail the IsPairType test
// above.
break;
}
} else {
StreamString names;
for (int j = 0; j < num_alternatives; ++j) {
if (j > 0)
names.Printf(" | ");
names.Printf("%s", GetArgumentName(arg_entry[j].arg_type));
}
std::string name_str = std::string(names.GetString());
switch (arg_entry[0].arg_repetition) {
case eArgRepeatPlain:
str.Printf("<%s>", name_str.c_str());
break;
case eArgRepeatPlus:
str.Printf("<%s> [<%s> [...]]", name_str.c_str(), name_str.c_str());
break;
case eArgRepeatStar:
str.Printf("[<%s> [<%s> [...]]]", name_str.c_str(), name_str.c_str());
break;
case eArgRepeatOptional:
str.Printf("[<%s>]", name_str.c_str());
break;
case eArgRepeatRange:
str.Printf("<%s_1> .. <%s_n>", name_str.c_str(), name_str.c_str());
break;
// Explicitly test for all the rest of the cases, so if new types get
// added we will notice the missing case statement(s).
case eArgRepeatPairPlain:
case eArgRepeatPairOptional:
case eArgRepeatPairPlus:
case eArgRepeatPairStar:
case eArgRepeatPairRange:
case eArgRepeatPairRangeOptional:
// These should not be hit, as they should pass the IsPairType test
// above, and control should have gone into the other branch of the if
// statement.
break;
}
}
}
}
CommandArgumentType
CommandObject::LookupArgumentName(llvm::StringRef arg_name) {
CommandArgumentType return_type = eArgTypeLastArg;
arg_name = arg_name.ltrim('<').rtrim('>');
for (int i = 0; i < eArgTypeLastArg; ++i)
if (arg_name == g_argument_table[i].arg_name)
return_type = g_argument_table[i].arg_type;
return return_type;
}
void CommandObject::FormatLongHelpText(Stream &output_strm,
llvm::StringRef long_help) {
CommandInterpreter &interpreter = GetCommandInterpreter();
std::stringstream lineStream{std::string(long_help)};
std::string line;
while (std::getline(lineStream, line)) {
if (line.empty()) {
output_strm << "\n";
continue;
}
size_t result = line.find_first_not_of(" \t");
if (result == std::string::npos) {
result = 0;
}
std::string whitespace_prefix = line.substr(0, result);
std::string remainder = line.substr(result);
interpreter.OutputFormattedHelpText(output_strm, whitespace_prefix,
remainder);
}
}
void CommandObject::GenerateHelpText(CommandReturnObject &result) {
GenerateHelpText(result.GetOutputStream());
result.SetStatus(eReturnStatusSuccessFinishNoResult);
}
void CommandObject::GenerateHelpText(Stream &output_strm) {
CommandInterpreter &interpreter = GetCommandInterpreter();
std::string help_text(GetHelp());
if (WantsRawCommandString()) {
help_text.append(" Expects 'raw' input (see 'help raw-input'.)");
}
interpreter.OutputFormattedHelpText(output_strm, "", help_text);
output_strm << "\nSyntax: " << GetSyntax() << "\n";
Options *options = GetOptions();
if (options != nullptr) {
options->GenerateOptionUsage(
output_strm, *this,
GetCommandInterpreter().GetDebugger().GetTerminalWidth());
}
llvm::StringRef long_help = GetHelpLong();
if (!long_help.empty()) {
FormatLongHelpText(output_strm, long_help);
}
if (!IsDashDashCommand() && options && options->NumCommandOptions() > 0) {
if (WantsRawCommandString() && !WantsCompletion()) {
// Emit the message about using ' -- ' between the end of the command
// options and the raw input conditionally, i.e., only if the command
// object does not want completion.
interpreter.OutputFormattedHelpText(
output_strm, "", "",
"\nImportant Note: Because this command takes 'raw' input, if you "
"use any command options"
" you must use ' -- ' between the end of the command options and the "
"beginning of the raw input.",
1);
} else if (GetNumArgumentEntries() > 0) {
// Also emit a warning about using "--" in case you are using a command
// that takes options and arguments.
interpreter.OutputFormattedHelpText(
output_strm, "", "",
"\nThis command takes options and free-form arguments. If your "
"arguments resemble"
" option specifiers (i.e., they start with a - or --), you must use "
"' -- ' between"
" the end of the command options and the beginning of the arguments.",
1);
}
}
}
void CommandObject::AddIDsArgumentData(CommandArgumentEntry &arg,
CommandArgumentType ID,
CommandArgumentType IDRange) {
CommandArgumentData id_arg;
CommandArgumentData id_range_arg;
// Create the first variant for the first (and only) argument for this
// command.
id_arg.arg_type = ID;
id_arg.arg_repetition = eArgRepeatOptional;
// Create the second variant for the first (and only) argument for this
// command.
id_range_arg.arg_type = IDRange;
id_range_arg.arg_repetition = eArgRepeatOptional;
// The first (and only) argument for this command could be either an id or an
// id_range. Push both variants into the entry for the first argument for
// this command.
arg.push_back(id_arg);
arg.push_back(id_range_arg);
}
const char *CommandObject::GetArgumentTypeAsCString(
const lldb::CommandArgumentType arg_type) {
assert(arg_type < eArgTypeLastArg &&
"Invalid argument type passed to GetArgumentTypeAsCString");
return g_argument_table[arg_type].arg_name;
}
const char *CommandObject::GetArgumentDescriptionAsCString(
const lldb::CommandArgumentType arg_type) {
assert(arg_type < eArgTypeLastArg &&
"Invalid argument type passed to GetArgumentDescriptionAsCString");
return g_argument_table[arg_type].help_text;
}
Target &CommandObject::GetDummyTarget() {
return m_interpreter.GetDebugger().GetDummyTarget();
}
Target &CommandObject::GetSelectedOrDummyTarget(bool prefer_dummy) {
return m_interpreter.GetDebugger().GetSelectedOrDummyTarget(prefer_dummy);
}
Target &CommandObject::GetSelectedTarget() {
assert(m_flags.AnySet(eCommandRequiresTarget | eCommandProcessMustBePaused |
eCommandProcessMustBeLaunched | eCommandRequiresFrame |
eCommandRequiresThread | eCommandRequiresProcess |
eCommandRequiresRegContext) &&
"GetSelectedTarget called from object that may have no target");
return *m_interpreter.GetDebugger().GetSelectedTarget();
}
Thread *CommandObject::GetDefaultThread() {
Thread *thread_to_use = m_exe_ctx.GetThreadPtr();
if (thread_to_use)
return thread_to_use;
Process *process = m_exe_ctx.GetProcessPtr();
if (!process) {
Target *target = m_exe_ctx.GetTargetPtr();
if (!target) {
target = m_interpreter.GetDebugger().GetSelectedTarget().get();
}
if (target)
process = target->GetProcessSP().get();
}
if (process)
return process->GetThreadList().GetSelectedThread().get();
else
return nullptr;
}
void CommandObjectParsed::Execute(const char *args_string,
CommandReturnObject &result) {
bool handled = false;
Args cmd_args(args_string);
if (HasOverrideCallback()) {
Args full_args(GetCommandName());
full_args.AppendArguments(cmd_args);
handled =
InvokeOverrideCallback(full_args.GetConstArgumentVector(), result);
}
if (!handled) {
for (auto entry : llvm::enumerate(cmd_args.entries())) {
const Args::ArgEntry &value = entry.value();
if (!value.ref().empty() && value.GetQuoteChar() == '`') {
// We have to put the backtick back in place for PreprocessCommand.
std::string opt_string = value.c_str();
Status error;
error = m_interpreter.PreprocessToken(opt_string);
if (error.Success())
cmd_args.ReplaceArgumentAtIndex(entry.index(), opt_string);
}
}
if (CheckRequirements(result)) {
if (ParseOptions(cmd_args, result)) {
// Call the command-specific version of 'Execute', passing it the
// already processed arguments.
if (cmd_args.GetArgumentCount() != 0 && m_arguments.empty()) {
result.AppendErrorWithFormatv("'{0}' doesn't take any arguments.",
GetCommandName());
Cleanup();
return;
}
DoExecute(cmd_args, result);
}
}
Cleanup();
}
}
void CommandObjectRaw::Execute(const char *args_string,
CommandReturnObject &result) {
bool handled = false;
if (HasOverrideCallback()) {
std::string full_command(GetCommandName());
full_command += ' ';
full_command += args_string;
const char *argv[2] = {nullptr, nullptr};
argv[0] = full_command.c_str();
handled = InvokeOverrideCallback(argv, result);
}
if (!handled) {
if (CheckRequirements(result))
DoExecute(args_string, result);
Cleanup();
}
}
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