llvm-project/lldb/source/Commands/CommandObjectSettings.cpp

1190 lines
39 KiB
C++

//===-- CommandObjectSettings.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 "CommandObjectSettings.h"
#include "llvm/ADT/StringRef.h"
#include "lldb/Host/OptionParser.h"
#include "lldb/Interpreter/CommandCompletions.h"
#include "lldb/Interpreter/CommandInterpreter.h"
#include "lldb/Interpreter/CommandReturnObject.h"
#include "lldb/Interpreter/OptionValueProperties.h"
using namespace lldb;
using namespace lldb_private;
// CommandObjectSettingsSet
#define LLDB_OPTIONS_settings_set
#include "CommandOptions.inc"
class CommandObjectSettingsSet : public CommandObjectRaw {
public:
CommandObjectSettingsSet(CommandInterpreter &interpreter)
: CommandObjectRaw(interpreter, "settings set",
"Set the value of the specified debugger setting."),
m_options() {
CommandArgumentEntry arg1;
CommandArgumentEntry arg2;
CommandArgumentData var_name_arg;
CommandArgumentData value_arg;
// Define the first (and only) variant of this arg.
var_name_arg.arg_type = eArgTypeSettingVariableName;
var_name_arg.arg_repetition = eArgRepeatPlain;
// There is only one variant this argument could be; put it into the
// argument entry.
arg1.push_back(var_name_arg);
// Define the first (and only) variant of this arg.
value_arg.arg_type = eArgTypeValue;
value_arg.arg_repetition = eArgRepeatPlain;
// There is only one variant this argument could be; put it into the
// argument entry.
arg2.push_back(value_arg);
// Push the data for the first argument into the m_arguments vector.
m_arguments.push_back(arg1);
m_arguments.push_back(arg2);
SetHelpLong(
"\nWhen setting a dictionary or array variable, you can set multiple entries \
at once by giving the values to the set command. For example:"
R"(
(lldb) settings set target.run-args value1 value2 value3
(lldb) settings set target.env-vars MYPATH=~/.:/usr/bin SOME_ENV_VAR=12345
(lldb) settings show target.run-args
[0]: 'value1'
[1]: 'value2'
[3]: 'value3'
(lldb) settings show target.env-vars
'MYPATH=~/.:/usr/bin'
'SOME_ENV_VAR=12345'
)"
"Warning: The 'set' command re-sets the entire array or dictionary. If you \
just want to add, remove or update individual values (or add something to \
the end), use one of the other settings sub-commands: append, replace, \
insert-before or insert-after.");
}
~CommandObjectSettingsSet() override = default;
// Overrides base class's behavior where WantsCompletion =
// !WantsRawCommandString.
bool WantsCompletion() override { return true; }
Options *GetOptions() override { return &m_options; }
class CommandOptions : public Options {
public:
CommandOptions() : Options(), m_global(false) {}
~CommandOptions() override = default;
Status SetOptionValue(uint32_t option_idx, llvm::StringRef option_arg,
ExecutionContext *execution_context) override {
Status error;
const int short_option = m_getopt_table[option_idx].val;
switch (short_option) {
case 'f':
m_force = true;
break;
case 'g':
m_global = true;
break;
default:
llvm_unreachable("Unimplemented option");
}
return error;
}
void OptionParsingStarting(ExecutionContext *execution_context) override {
m_global = false;
m_force = false;
}
llvm::ArrayRef<OptionDefinition> GetDefinitions() override {
return llvm::makeArrayRef(g_settings_set_options);
}
// Instance variables to hold the values for command options.
bool m_global;
bool m_force;
};
void
HandleArgumentCompletion(CompletionRequest &request,
OptionElementVector &opt_element_vector) override {
const size_t argc = request.GetParsedLine().GetArgumentCount();
const char *arg = nullptr;
size_t setting_var_idx;
for (setting_var_idx = 0; setting_var_idx < argc; ++setting_var_idx) {
arg = request.GetParsedLine().GetArgumentAtIndex(setting_var_idx);
if (arg && arg[0] != '-')
break; // We found our setting variable name index
}
if (request.GetCursorIndex() == setting_var_idx) {
// Attempting to complete setting variable name
CommandCompletions::InvokeCommonCompletionCallbacks(
GetCommandInterpreter(), CommandCompletions::eSettingsNameCompletion,
request, nullptr);
return;
}
arg = request.GetParsedLine().GetArgumentAtIndex(request.GetCursorIndex());
if (!arg)
return;
// Complete option name
if (arg[0] != '-')
return;
// Complete setting value
const char *setting_var_name =
request.GetParsedLine().GetArgumentAtIndex(setting_var_idx);
Status error;
lldb::OptionValueSP value_sp(GetDebugger().GetPropertyValue(
&m_exe_ctx, setting_var_name, false, error));
if (!value_sp)
return;
value_sp->AutoComplete(m_interpreter, request);
}
protected:
bool DoExecute(llvm::StringRef command,
CommandReturnObject &result) override {
Args cmd_args(command);
// Process possible options.
if (!ParseOptions(cmd_args, result))
return false;
const size_t min_argc = m_options.m_force ? 1 : 2;
const size_t argc = cmd_args.GetArgumentCount();
if ((argc < min_argc) && (!m_options.m_global)) {
result.AppendError("'settings set' takes more arguments");
result.SetStatus(eReturnStatusFailed);
return false;
}
const char *var_name = cmd_args.GetArgumentAtIndex(0);
if ((var_name == nullptr) || (var_name[0] == '\0')) {
result.AppendError(
"'settings set' command requires a valid variable name");
result.SetStatus(eReturnStatusFailed);
return false;
}
// A missing value corresponds to clearing the setting when "force" is
// specified.
if (argc == 1 && m_options.m_force) {
Status error(GetDebugger().SetPropertyValue(
&m_exe_ctx, eVarSetOperationClear, var_name, llvm::StringRef()));
if (error.Fail()) {
result.AppendError(error.AsCString());
result.SetStatus(eReturnStatusFailed);
return false;
}
return result.Succeeded();
}
// Split the raw command into var_name and value pair.
llvm::StringRef var_value(command);
var_value = var_value.split(var_name).second.ltrim();
Status error;
if (m_options.m_global)
error = GetDebugger().SetPropertyValue(nullptr, eVarSetOperationAssign,
var_name, var_value);
if (error.Success()) {
// FIXME this is the same issue as the one in commands script import
// we could be setting target.load-script-from-symbol-file which would
// cause Python scripts to be loaded, which could run LLDB commands (e.g.
// settings set target.process.python-os-plugin-path) and cause a crash
// if we did not clear the command's exe_ctx first
ExecutionContext exe_ctx(m_exe_ctx);
m_exe_ctx.Clear();
error = GetDebugger().SetPropertyValue(&exe_ctx, eVarSetOperationAssign,
var_name, var_value);
}
if (error.Fail()) {
result.AppendError(error.AsCString());
result.SetStatus(eReturnStatusFailed);
return false;
} else {
result.SetStatus(eReturnStatusSuccessFinishResult);
}
return result.Succeeded();
}
private:
CommandOptions m_options;
};
// CommandObjectSettingsShow -- Show current values
class CommandObjectSettingsShow : public CommandObjectParsed {
public:
CommandObjectSettingsShow(CommandInterpreter &interpreter)
: CommandObjectParsed(interpreter, "settings show",
"Show matching debugger settings and their current "
"values. Defaults to showing all settings.",
nullptr) {
CommandArgumentEntry arg1;
CommandArgumentData var_name_arg;
// Define the first (and only) variant of this arg.
var_name_arg.arg_type = eArgTypeSettingVariableName;
var_name_arg.arg_repetition = eArgRepeatOptional;
// There is only one variant this argument could be; put it into the
// argument entry.
arg1.push_back(var_name_arg);
// Push the data for the first argument into the m_arguments vector.
m_arguments.push_back(arg1);
}
~CommandObjectSettingsShow() override = default;
void
HandleArgumentCompletion(CompletionRequest &request,
OptionElementVector &opt_element_vector) override {
CommandCompletions::InvokeCommonCompletionCallbacks(
GetCommandInterpreter(), CommandCompletions::eSettingsNameCompletion,
request, nullptr);
}
protected:
bool DoExecute(Args &args, CommandReturnObject &result) override {
result.SetStatus(eReturnStatusSuccessFinishResult);
if (!args.empty()) {
for (const auto &arg : args) {
Status error(GetDebugger().DumpPropertyValue(
&m_exe_ctx, result.GetOutputStream(), arg.ref(),
OptionValue::eDumpGroupValue));
if (error.Success()) {
result.GetOutputStream().EOL();
} else {
result.AppendError(error.AsCString());
result.SetStatus(eReturnStatusFailed);
}
}
} else {
GetDebugger().DumpAllPropertyValues(&m_exe_ctx, result.GetOutputStream(),
OptionValue::eDumpGroupValue);
}
return result.Succeeded();
}
};
// CommandObjectSettingsWrite -- Write settings to file
#define LLDB_OPTIONS_settings_write
#include "CommandOptions.inc"
class CommandObjectSettingsWrite : public CommandObjectParsed {
public:
CommandObjectSettingsWrite(CommandInterpreter &interpreter)
: CommandObjectParsed(
interpreter, "settings export",
"Write matching debugger settings and their "
"current values to a file that can be read in with "
"\"settings read\". Defaults to writing all settings.",
nullptr),
m_options() {
CommandArgumentEntry arg1;
CommandArgumentData var_name_arg;
// Define the first (and only) variant of this arg.
var_name_arg.arg_type = eArgTypeSettingVariableName;
var_name_arg.arg_repetition = eArgRepeatOptional;
// There is only one variant this argument could be; put it into the
// argument entry.
arg1.push_back(var_name_arg);
// Push the data for the first argument into the m_arguments vector.
m_arguments.push_back(arg1);
}
~CommandObjectSettingsWrite() override = default;
Options *GetOptions() override { return &m_options; }
class CommandOptions : public Options {
public:
CommandOptions() : Options() {}
~CommandOptions() override = default;
Status SetOptionValue(uint32_t option_idx, llvm::StringRef option_arg,
ExecutionContext *execution_context) override {
Status error;
const int short_option = m_getopt_table[option_idx].val;
switch (short_option) {
case 'f':
m_filename.assign(std::string(option_arg));
break;
case 'a':
m_append = true;
break;
default:
llvm_unreachable("Unimplemented option");
}
return error;
}
void OptionParsingStarting(ExecutionContext *execution_context) override {
m_filename.clear();
m_append = false;
}
llvm::ArrayRef<OptionDefinition> GetDefinitions() override {
return llvm::makeArrayRef(g_settings_write_options);
}
// Instance variables to hold the values for command options.
std::string m_filename;
bool m_append = false;
};
protected:
bool DoExecute(Args &args, CommandReturnObject &result) override {
FileSpec file_spec(m_options.m_filename);
FileSystem::Instance().Resolve(file_spec);
std::string path(file_spec.GetPath());
auto options = File::eOpenOptionWrite | File::eOpenOptionCanCreate;
if (m_options.m_append)
options |= File::eOpenOptionAppend;
else
options |= File::eOpenOptionTruncate;
StreamFile out_file(path.c_str(), options,
lldb::eFilePermissionsFileDefault);
if (!out_file.GetFile().IsValid()) {
result.AppendErrorWithFormat("%s: unable to write to file", path.c_str());
result.SetStatus(eReturnStatusFailed);
return false;
}
// Exporting should not be context sensitive.
ExecutionContext clean_ctx;
if (args.empty()) {
GetDebugger().DumpAllPropertyValues(&clean_ctx, out_file,
OptionValue::eDumpGroupExport);
return result.Succeeded();
}
for (const auto &arg : args) {
Status error(GetDebugger().DumpPropertyValue(
&clean_ctx, out_file, arg.ref(), OptionValue::eDumpGroupExport));
if (!error.Success()) {
result.AppendError(error.AsCString());
result.SetStatus(eReturnStatusFailed);
}
}
return result.Succeeded();
}
private:
CommandOptions m_options;
};
// CommandObjectSettingsRead -- Read settings from file
#define LLDB_OPTIONS_settings_read
#include "CommandOptions.inc"
class CommandObjectSettingsRead : public CommandObjectParsed {
public:
CommandObjectSettingsRead(CommandInterpreter &interpreter)
: CommandObjectParsed(
interpreter, "settings read",
"Read settings previously saved to a file with \"settings write\".",
nullptr),
m_options() {}
~CommandObjectSettingsRead() override = default;
Options *GetOptions() override { return &m_options; }
class CommandOptions : public Options {
public:
CommandOptions() : Options() {}
~CommandOptions() override = default;
Status SetOptionValue(uint32_t option_idx, llvm::StringRef option_arg,
ExecutionContext *execution_context) override {
Status error;
const int short_option = m_getopt_table[option_idx].val;
switch (short_option) {
case 'f':
m_filename.assign(std::string(option_arg));
break;
default:
llvm_unreachable("Unimplemented option");
}
return error;
}
void OptionParsingStarting(ExecutionContext *execution_context) override {
m_filename.clear();
}
llvm::ArrayRef<OptionDefinition> GetDefinitions() override {
return llvm::makeArrayRef(g_settings_read_options);
}
// Instance variables to hold the values for command options.
std::string m_filename;
};
protected:
bool DoExecute(Args &command, CommandReturnObject &result) override {
FileSpec file(m_options.m_filename);
FileSystem::Instance().Resolve(file);
CommandInterpreterRunOptions options;
options.SetAddToHistory(false);
options.SetEchoCommands(false);
options.SetPrintResults(true);
options.SetPrintErrors(true);
options.SetStopOnError(false);
m_interpreter.HandleCommandsFromFile(file, options, result);
return result.Succeeded();
}
private:
CommandOptions m_options;
};
// CommandObjectSettingsList -- List settable variables
class CommandObjectSettingsList : public CommandObjectParsed {
public:
CommandObjectSettingsList(CommandInterpreter &interpreter)
: CommandObjectParsed(interpreter, "settings list",
"List and describe matching debugger settings. "
"Defaults to all listing all settings.",
nullptr) {
CommandArgumentEntry arg;
CommandArgumentData var_name_arg;
CommandArgumentData prefix_name_arg;
// Define the first variant of this arg.
var_name_arg.arg_type = eArgTypeSettingVariableName;
var_name_arg.arg_repetition = eArgRepeatOptional;
// Define the second variant of this arg.
prefix_name_arg.arg_type = eArgTypeSettingPrefix;
prefix_name_arg.arg_repetition = eArgRepeatOptional;
arg.push_back(var_name_arg);
arg.push_back(prefix_name_arg);
// Push the data for the first argument into the m_arguments vector.
m_arguments.push_back(arg);
}
~CommandObjectSettingsList() override = default;
void
HandleArgumentCompletion(CompletionRequest &request,
OptionElementVector &opt_element_vector) override {
CommandCompletions::InvokeCommonCompletionCallbacks(
GetCommandInterpreter(), CommandCompletions::eSettingsNameCompletion,
request, nullptr);
}
protected:
bool DoExecute(Args &args, CommandReturnObject &result) override {
result.SetStatus(eReturnStatusSuccessFinishResult);
const bool will_modify = false;
const size_t argc = args.GetArgumentCount();
if (argc > 0) {
const bool dump_qualified_name = true;
for (const Args::ArgEntry &arg : args) {
const char *property_path = arg.c_str();
const Property *property =
GetDebugger().GetValueProperties()->GetPropertyAtPath(
&m_exe_ctx, will_modify, property_path);
if (property) {
property->DumpDescription(m_interpreter, result.GetOutputStream(), 0,
dump_qualified_name);
} else {
result.AppendErrorWithFormat("invalid property path '%s'",
property_path);
result.SetStatus(eReturnStatusFailed);
}
}
} else {
GetDebugger().DumpAllDescriptions(m_interpreter,
result.GetOutputStream());
}
return result.Succeeded();
}
};
// CommandObjectSettingsRemove
class CommandObjectSettingsRemove : public CommandObjectRaw {
public:
CommandObjectSettingsRemove(CommandInterpreter &interpreter)
: CommandObjectRaw(interpreter, "settings remove",
"Remove a value from a setting, specified by array "
"index or dictionary key.") {
CommandArgumentEntry arg1;
CommandArgumentEntry arg2;
CommandArgumentData var_name_arg;
CommandArgumentData index_arg;
CommandArgumentData key_arg;
// Define the first (and only) variant of this arg.
var_name_arg.arg_type = eArgTypeSettingVariableName;
var_name_arg.arg_repetition = eArgRepeatPlain;
// There is only one variant this argument could be; put it into the
// argument entry.
arg1.push_back(var_name_arg);
// Define the first variant of this arg.
index_arg.arg_type = eArgTypeSettingIndex;
index_arg.arg_repetition = eArgRepeatPlain;
// Define the second variant of this arg.
key_arg.arg_type = eArgTypeSettingKey;
key_arg.arg_repetition = eArgRepeatPlain;
// Push both variants into this arg
arg2.push_back(index_arg);
arg2.push_back(key_arg);
// Push the data for the first argument into the m_arguments vector.
m_arguments.push_back(arg1);
m_arguments.push_back(arg2);
}
~CommandObjectSettingsRemove() override = default;
bool WantsCompletion() override { return true; }
void
HandleArgumentCompletion(CompletionRequest &request,
OptionElementVector &opt_element_vector) override {
if (request.GetCursorIndex() < 2)
CommandCompletions::InvokeCommonCompletionCallbacks(
GetCommandInterpreter(), CommandCompletions::eSettingsNameCompletion,
request, nullptr);
}
protected:
bool DoExecute(llvm::StringRef command,
CommandReturnObject &result) override {
result.SetStatus(eReturnStatusSuccessFinishNoResult);
Args cmd_args(command);
// Process possible options.
if (!ParseOptions(cmd_args, result))
return false;
const size_t argc = cmd_args.GetArgumentCount();
if (argc == 0) {
result.AppendError("'settings remove' takes an array or dictionary item, "
"or an array followed by one or more indexes, or a "
"dictionary followed by one or more key names to "
"remove");
result.SetStatus(eReturnStatusFailed);
return false;
}
const char *var_name = cmd_args.GetArgumentAtIndex(0);
if ((var_name == nullptr) || (var_name[0] == '\0')) {
result.AppendError(
"'settings remove' command requires a valid variable name");
result.SetStatus(eReturnStatusFailed);
return false;
}
// Split the raw command into var_name and value pair.
llvm::StringRef var_value(command);
var_value = var_value.split(var_name).second.trim();
Status error(GetDebugger().SetPropertyValue(
&m_exe_ctx, eVarSetOperationRemove, var_name, var_value));
if (error.Fail()) {
result.AppendError(error.AsCString());
result.SetStatus(eReturnStatusFailed);
return false;
}
return result.Succeeded();
}
};
// CommandObjectSettingsReplace
class CommandObjectSettingsReplace : public CommandObjectRaw {
public:
CommandObjectSettingsReplace(CommandInterpreter &interpreter)
: CommandObjectRaw(interpreter, "settings replace",
"Replace the debugger setting value specified by "
"array index or dictionary key.") {
CommandArgumentEntry arg1;
CommandArgumentEntry arg2;
CommandArgumentEntry arg3;
CommandArgumentData var_name_arg;
CommandArgumentData index_arg;
CommandArgumentData key_arg;
CommandArgumentData value_arg;
// Define the first (and only) variant of this arg.
var_name_arg.arg_type = eArgTypeSettingVariableName;
var_name_arg.arg_repetition = eArgRepeatPlain;
// There is only one variant this argument could be; put it into the
// argument entry.
arg1.push_back(var_name_arg);
// Define the first (variant of this arg.
index_arg.arg_type = eArgTypeSettingIndex;
index_arg.arg_repetition = eArgRepeatPlain;
// Define the second (variant of this arg.
key_arg.arg_type = eArgTypeSettingKey;
key_arg.arg_repetition = eArgRepeatPlain;
// Put both variants into this arg
arg2.push_back(index_arg);
arg2.push_back(key_arg);
// Define the first (and only) variant of this arg.
value_arg.arg_type = eArgTypeValue;
value_arg.arg_repetition = eArgRepeatPlain;
// There is only one variant this argument could be; put it into the
// argument entry.
arg3.push_back(value_arg);
// Push the data for the first argument into the m_arguments vector.
m_arguments.push_back(arg1);
m_arguments.push_back(arg2);
m_arguments.push_back(arg3);
}
~CommandObjectSettingsReplace() override = default;
// Overrides base class's behavior where WantsCompletion =
// !WantsRawCommandString.
bool WantsCompletion() override { return true; }
void
HandleArgumentCompletion(CompletionRequest &request,
OptionElementVector &opt_element_vector) override {
// Attempting to complete variable name
if (request.GetCursorIndex() < 2)
CommandCompletions::InvokeCommonCompletionCallbacks(
GetCommandInterpreter(), CommandCompletions::eSettingsNameCompletion,
request, nullptr);
}
protected:
bool DoExecute(llvm::StringRef command,
CommandReturnObject &result) override {
result.SetStatus(eReturnStatusSuccessFinishNoResult);
Args cmd_args(command);
const char *var_name = cmd_args.GetArgumentAtIndex(0);
if ((var_name == nullptr) || (var_name[0] == '\0')) {
result.AppendError("'settings replace' command requires a valid variable "
"name; No value supplied");
result.SetStatus(eReturnStatusFailed);
return false;
}
// Split the raw command into var_name, index_value, and value triple.
llvm::StringRef var_value(command);
var_value = var_value.split(var_name).second.trim();
Status error(GetDebugger().SetPropertyValue(
&m_exe_ctx, eVarSetOperationReplace, var_name, var_value));
if (error.Fail()) {
result.AppendError(error.AsCString());
result.SetStatus(eReturnStatusFailed);
return false;
} else {
result.SetStatus(eReturnStatusSuccessFinishNoResult);
}
return result.Succeeded();
}
};
// CommandObjectSettingsInsertBefore
class CommandObjectSettingsInsertBefore : public CommandObjectRaw {
public:
CommandObjectSettingsInsertBefore(CommandInterpreter &interpreter)
: CommandObjectRaw(interpreter, "settings insert-before",
"Insert one or more values into an debugger array "
"setting immediately before the specified element "
"index.") {
CommandArgumentEntry arg1;
CommandArgumentEntry arg2;
CommandArgumentEntry arg3;
CommandArgumentData var_name_arg;
CommandArgumentData index_arg;
CommandArgumentData value_arg;
// Define the first (and only) variant of this arg.
var_name_arg.arg_type = eArgTypeSettingVariableName;
var_name_arg.arg_repetition = eArgRepeatPlain;
// There is only one variant this argument could be; put it into the
// argument entry.
arg1.push_back(var_name_arg);
// Define the first (variant of this arg.
index_arg.arg_type = eArgTypeSettingIndex;
index_arg.arg_repetition = eArgRepeatPlain;
// There is only one variant this argument could be; put it into the
// argument entry.
arg2.push_back(index_arg);
// Define the first (and only) variant of this arg.
value_arg.arg_type = eArgTypeValue;
value_arg.arg_repetition = eArgRepeatPlain;
// There is only one variant this argument could be; put it into the
// argument entry.
arg3.push_back(value_arg);
// Push the data for the first argument into the m_arguments vector.
m_arguments.push_back(arg1);
m_arguments.push_back(arg2);
m_arguments.push_back(arg3);
}
~CommandObjectSettingsInsertBefore() override = default;
// Overrides base class's behavior where WantsCompletion =
// !WantsRawCommandString.
bool WantsCompletion() override { return true; }
void
HandleArgumentCompletion(CompletionRequest &request,
OptionElementVector &opt_element_vector) override {
// Attempting to complete variable name
if (request.GetCursorIndex() < 2)
CommandCompletions::InvokeCommonCompletionCallbacks(
GetCommandInterpreter(), CommandCompletions::eSettingsNameCompletion,
request, nullptr);
}
protected:
bool DoExecute(llvm::StringRef command,
CommandReturnObject &result) override {
result.SetStatus(eReturnStatusSuccessFinishNoResult);
Args cmd_args(command);
const size_t argc = cmd_args.GetArgumentCount();
if (argc < 3) {
result.AppendError("'settings insert-before' takes more arguments");
result.SetStatus(eReturnStatusFailed);
return false;
}
const char *var_name = cmd_args.GetArgumentAtIndex(0);
if ((var_name == nullptr) || (var_name[0] == '\0')) {
result.AppendError("'settings insert-before' command requires a valid "
"variable name; No value supplied");
result.SetStatus(eReturnStatusFailed);
return false;
}
// Split the raw command into var_name, index_value, and value triple.
llvm::StringRef var_value(command);
var_value = var_value.split(var_name).second.trim();
Status error(GetDebugger().SetPropertyValue(
&m_exe_ctx, eVarSetOperationInsertBefore, var_name, var_value));
if (error.Fail()) {
result.AppendError(error.AsCString());
result.SetStatus(eReturnStatusFailed);
return false;
}
return result.Succeeded();
}
};
// CommandObjectSettingInsertAfter
class CommandObjectSettingsInsertAfter : public CommandObjectRaw {
public:
CommandObjectSettingsInsertAfter(CommandInterpreter &interpreter)
: CommandObjectRaw(interpreter, "settings insert-after",
"Insert one or more values into a debugger array "
"settings after the specified element index.") {
CommandArgumentEntry arg1;
CommandArgumentEntry arg2;
CommandArgumentEntry arg3;
CommandArgumentData var_name_arg;
CommandArgumentData index_arg;
CommandArgumentData value_arg;
// Define the first (and only) variant of this arg.
var_name_arg.arg_type = eArgTypeSettingVariableName;
var_name_arg.arg_repetition = eArgRepeatPlain;
// There is only one variant this argument could be; put it into the
// argument entry.
arg1.push_back(var_name_arg);
// Define the first (variant of this arg.
index_arg.arg_type = eArgTypeSettingIndex;
index_arg.arg_repetition = eArgRepeatPlain;
// There is only one variant this argument could be; put it into the
// argument entry.
arg2.push_back(index_arg);
// Define the first (and only) variant of this arg.
value_arg.arg_type = eArgTypeValue;
value_arg.arg_repetition = eArgRepeatPlain;
// There is only one variant this argument could be; put it into the
// argument entry.
arg3.push_back(value_arg);
// Push the data for the first argument into the m_arguments vector.
m_arguments.push_back(arg1);
m_arguments.push_back(arg2);
m_arguments.push_back(arg3);
}
~CommandObjectSettingsInsertAfter() override = default;
// Overrides base class's behavior where WantsCompletion =
// !WantsRawCommandString.
bool WantsCompletion() override { return true; }
void
HandleArgumentCompletion(CompletionRequest &request,
OptionElementVector &opt_element_vector) override {
// Attempting to complete variable name
if (request.GetCursorIndex() < 2)
CommandCompletions::InvokeCommonCompletionCallbacks(
GetCommandInterpreter(), CommandCompletions::eSettingsNameCompletion,
request, nullptr);
}
protected:
bool DoExecute(llvm::StringRef command,
CommandReturnObject &result) override {
result.SetStatus(eReturnStatusSuccessFinishNoResult);
Args cmd_args(command);
const size_t argc = cmd_args.GetArgumentCount();
if (argc < 3) {
result.AppendError("'settings insert-after' takes more arguments");
result.SetStatus(eReturnStatusFailed);
return false;
}
const char *var_name = cmd_args.GetArgumentAtIndex(0);
if ((var_name == nullptr) || (var_name[0] == '\0')) {
result.AppendError("'settings insert-after' command requires a valid "
"variable name; No value supplied");
result.SetStatus(eReturnStatusFailed);
return false;
}
// Split the raw command into var_name, index_value, and value triple.
llvm::StringRef var_value(command);
var_value = var_value.split(var_name).second.trim();
Status error(GetDebugger().SetPropertyValue(
&m_exe_ctx, eVarSetOperationInsertAfter, var_name, var_value));
if (error.Fail()) {
result.AppendError(error.AsCString());
result.SetStatus(eReturnStatusFailed);
return false;
}
return result.Succeeded();
}
};
// CommandObjectSettingsAppend
class CommandObjectSettingsAppend : public CommandObjectRaw {
public:
CommandObjectSettingsAppend(CommandInterpreter &interpreter)
: CommandObjectRaw(interpreter, "settings append",
"Append one or more values to a debugger array, "
"dictionary, or string setting.") {
CommandArgumentEntry arg1;
CommandArgumentEntry arg2;
CommandArgumentData var_name_arg;
CommandArgumentData value_arg;
// Define the first (and only) variant of this arg.
var_name_arg.arg_type = eArgTypeSettingVariableName;
var_name_arg.arg_repetition = eArgRepeatPlain;
// There is only one variant this argument could be; put it into the
// argument entry.
arg1.push_back(var_name_arg);
// Define the first (and only) variant of this arg.
value_arg.arg_type = eArgTypeValue;
value_arg.arg_repetition = eArgRepeatPlain;
// There is only one variant this argument could be; put it into the
// argument entry.
arg2.push_back(value_arg);
// Push the data for the first argument into the m_arguments vector.
m_arguments.push_back(arg1);
m_arguments.push_back(arg2);
}
~CommandObjectSettingsAppend() override = default;
// Overrides base class's behavior where WantsCompletion =
// !WantsRawCommandString.
bool WantsCompletion() override { return true; }
void
HandleArgumentCompletion(CompletionRequest &request,
OptionElementVector &opt_element_vector) override {
// Attempting to complete variable name
if (request.GetCursorIndex() < 2)
CommandCompletions::InvokeCommonCompletionCallbacks(
GetCommandInterpreter(), CommandCompletions::eSettingsNameCompletion,
request, nullptr);
}
protected:
bool DoExecute(llvm::StringRef command,
CommandReturnObject &result) override {
result.SetStatus(eReturnStatusSuccessFinishNoResult);
Args cmd_args(command);
const size_t argc = cmd_args.GetArgumentCount();
if (argc < 2) {
result.AppendError("'settings append' takes more arguments");
result.SetStatus(eReturnStatusFailed);
return false;
}
const char *var_name = cmd_args.GetArgumentAtIndex(0);
if ((var_name == nullptr) || (var_name[0] == '\0')) {
result.AppendError("'settings append' command requires a valid variable "
"name; No value supplied");
result.SetStatus(eReturnStatusFailed);
return false;
}
// Do not perform cmd_args.Shift() since StringRef is manipulating the raw
// character string later on.
// Split the raw command into var_name and value pair.
llvm::StringRef var_value(command);
var_value = var_value.split(var_name).second.trim();
Status error(GetDebugger().SetPropertyValue(
&m_exe_ctx, eVarSetOperationAppend, var_name, var_value));
if (error.Fail()) {
result.AppendError(error.AsCString());
result.SetStatus(eReturnStatusFailed);
return false;
}
return result.Succeeded();
}
};
// CommandObjectSettingsClear
#define LLDB_OPTIONS_settings_clear
#include "CommandOptions.inc"
class CommandObjectSettingsClear : public CommandObjectParsed {
public:
CommandObjectSettingsClear(CommandInterpreter &interpreter)
: CommandObjectParsed(
interpreter, "settings clear",
"Clear a debugger setting array, dictionary, or string. "
"If '-a' option is specified, it clears all settings.", nullptr) {
CommandArgumentEntry arg;
CommandArgumentData var_name_arg;
// Define the first (and only) variant of this arg.
var_name_arg.arg_type = eArgTypeSettingVariableName;
var_name_arg.arg_repetition = eArgRepeatPlain;
// There is only one variant this argument could be; put it into the
// argument entry.
arg.push_back(var_name_arg);
// Push the data for the first argument into the m_arguments vector.
m_arguments.push_back(arg);
}
~CommandObjectSettingsClear() override = default;
void
HandleArgumentCompletion(CompletionRequest &request,
OptionElementVector &opt_element_vector) override {
// Attempting to complete variable name
if (request.GetCursorIndex() < 2)
CommandCompletions::InvokeCommonCompletionCallbacks(
GetCommandInterpreter(), CommandCompletions::eSettingsNameCompletion,
request, nullptr);
}
Options *GetOptions() override { return &m_options; }
class CommandOptions : public Options {
public:
CommandOptions() = default;
~CommandOptions() override = default;
Status SetOptionValue(uint32_t option_idx, llvm::StringRef option_arg,
ExecutionContext *execution_context) override {
const int short_option = m_getopt_table[option_idx].val;
switch (short_option) {
case 'a':
m_clear_all = true;
break;
default:
llvm_unreachable("Unimplemented option");
}
return Status();
}
void OptionParsingStarting(ExecutionContext *execution_context) override {
m_clear_all = false;
}
llvm::ArrayRef<OptionDefinition> GetDefinitions() override {
return llvm::makeArrayRef(g_settings_clear_options);
}
bool m_clear_all = false;
};
protected:
bool DoExecute(Args &command, CommandReturnObject &result) override {
result.SetStatus(eReturnStatusSuccessFinishNoResult);
const size_t argc = command.GetArgumentCount();
if (m_options.m_clear_all) {
if (argc != 0) {
result.AppendError("'settings clear --all' doesn't take any arguments");
result.SetStatus(eReturnStatusFailed);
return false;
}
GetDebugger().GetValueProperties()->Clear();
return result.Succeeded();
}
if (argc != 1) {
result.AppendError("'settings clear' takes exactly one argument");
result.SetStatus(eReturnStatusFailed);
return false;
}
const char *var_name = command.GetArgumentAtIndex(0);
if ((var_name == nullptr) || (var_name[0] == '\0')) {
result.AppendError("'settings clear' command requires a valid variable "
"name; No value supplied");
result.SetStatus(eReturnStatusFailed);
return false;
}
Status error(GetDebugger().SetPropertyValue(
&m_exe_ctx, eVarSetOperationClear, var_name, llvm::StringRef()));
if (error.Fail()) {
result.AppendError(error.AsCString());
result.SetStatus(eReturnStatusFailed);
return false;
}
return result.Succeeded();
}
private:
CommandOptions m_options;
};
// CommandObjectMultiwordSettings
CommandObjectMultiwordSettings::CommandObjectMultiwordSettings(
CommandInterpreter &interpreter)
: CommandObjectMultiword(interpreter, "settings",
"Commands for managing LLDB settings.",
"settings <subcommand> [<command-options>]") {
LoadSubCommand("set",
CommandObjectSP(new CommandObjectSettingsSet(interpreter)));
LoadSubCommand("show",
CommandObjectSP(new CommandObjectSettingsShow(interpreter)));
LoadSubCommand("list",
CommandObjectSP(new CommandObjectSettingsList(interpreter)));
LoadSubCommand("remove",
CommandObjectSP(new CommandObjectSettingsRemove(interpreter)));
LoadSubCommand("replace", CommandObjectSP(
new CommandObjectSettingsReplace(interpreter)));
LoadSubCommand(
"insert-before",
CommandObjectSP(new CommandObjectSettingsInsertBefore(interpreter)));
LoadSubCommand(
"insert-after",
CommandObjectSP(new CommandObjectSettingsInsertAfter(interpreter)));
LoadSubCommand("append",
CommandObjectSP(new CommandObjectSettingsAppend(interpreter)));
LoadSubCommand("clear",
CommandObjectSP(new CommandObjectSettingsClear(interpreter)));
LoadSubCommand("write",
CommandObjectSP(new CommandObjectSettingsWrite(interpreter)));
LoadSubCommand("read",
CommandObjectSP(new CommandObjectSettingsRead(interpreter)));
}
CommandObjectMultiwordSettings::~CommandObjectMultiwordSettings() = default;