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3df9a8dfd7
teak-llvm/lldb/source/Core/UserSettingsController.cpp
Caroline Tice 3df9a8dfd7 This is a very large commit that completely re-does the way lldb 
handles user settable internal variables (the equivalent of set/show
variables in gdb).  In addition to the basic infrastructure (most of
which is defined in UserSettingsController.{h,cpp}, there are examples
of two classes that have been set up to contain user settable
variables (the Debugger and Process classes).  The 'settings' command
has been modified to be a command-subcommand structure, and the 'set',
'show' and 'append' commands have been moved into this sub-commabnd
structure.  The old StateVariable class has been completely replaced
by this, and the state variable dictionary has been removed from the
Command Interpreter.  Places that formerly accessed the state variable
mechanism have been modified to access the variables in this new
structure instead (checking the term-width; getting/checking the
prompt; etc.)

Variables are attached to classes; there are two basic "flavors" of
variables that can be set: "global" variables (static/class-wide), and
"instance" variables (one per instance of the class).  The whole thing
has been set up so that any global or instance variable can be set at
any time (e.g. on start up, in your .lldbinit file), whether or not
any instances actually exist (there's a whole pending and default
values mechanism to help deal with that).

llvm-svn: 113041
2010-09-04 00:03:46 +00:00

1858 lines
66 KiB
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//====-- UserSettingsController.cpp ------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include <string.h>
#include <algorithm>
#include "lldb/Core/UserSettingsController.h"
#include "lldb/Core/Error.h"
#include "lldb/Core/Stream.h"
#include "lldb/Core/StreamString.h"
#include "lldb/Interpreter/CommandInterpreter.h"
using namespace lldb_private;
UserSettingsController::UserSettingsController (const char *level_name,
const lldb::UserSettingsControllerSP &parent) :
m_default_settings (),
m_settings (),
m_children (),
m_pending_settings (),
m_live_settings (),
m_children_mutex (Mutex::eMutexTypeNormal),
m_pending_settings_mutex (Mutex::eMutexTypeNormal),
m_live_settings_mutex (Mutex::eMutexTypeNormal)
{
m_settings.parent = parent;
m_settings.level_name.SetCString (level_name);
}
UserSettingsController::~UserSettingsController ()
{
m_live_settings.clear();
}
void
UserSettingsController::InitializeGlobalVariables ()
{
static bool global_initialized = false;
int num_entries;
const char *prefix = GetLevelName().AsCString();
if (! global_initialized)
{
num_entries = m_settings.global_settings.size();
for (int i = 0; i < num_entries; ++i)
{
SettingEntry &entry = m_settings.global_settings[i];
if (entry.default_value != NULL)
{
StreamString full_name;
if (prefix[0] != '\0')
full_name.Printf ("%s.%s", prefix, entry.var_name);
else
full_name.Printf ("%s", entry.var_name);
SetVariable (full_name.GetData(), entry.default_value, lldb::eVarSetOperationAssign, false);
}
else if ((entry.var_type == lldb::eSetVarTypeEnum)
&& (entry.enum_values != NULL))
{
StreamString full_name;
if (prefix[0] != '\0')
full_name.Printf ("%s.%s", prefix, entry.var_name);
else
full_name.Printf ("%s", entry.var_name);
SetVariable (full_name.GetData(), entry.enum_values[0].string_value, lldb::eVarSetOperationAssign,
false);
}
}
global_initialized = true;
}
}
const lldb::UserSettingsControllerSP &
UserSettingsController::GetParent ()
{
return m_settings.parent;
}
void
UserSettingsController::RegisterChild (const lldb::UserSettingsControllerSP &child)
{
Mutex::Locker locker (m_children_mutex);
// Verify child is not already in m_children.
size_t num_children = m_children.size();
bool found = false;
for (size_t i = 0; i < num_children; ++i)
{
if (m_children[i].get() == child.get())
found = true;
}
// Add child to m_children.
if (! found)
m_children.push_back (child);
}
const ConstString &
UserSettingsController::GetLevelName ()
{
return m_settings.level_name;
}
size_t
UserSettingsController::GetNumChildren ()
{
return m_children.size();
}
const lldb::UserSettingsControllerSP
UserSettingsController::GetChildAtIndex (size_t index)
{
if (index < m_children.size())
return m_children[index];
lldb::UserSettingsControllerSP dummy_value;
return dummy_value;
}
const SettingEntry *
UserSettingsController::GetGlobalEntry (const ConstString &var_name)
{
for (int i = 0; i < m_settings.global_settings.size(); ++i)
{
SettingEntry &entry = m_settings.global_settings[i];
ConstString entry_name (entry.var_name);
if (entry_name == var_name)
return &entry;
}
return NULL;
}
const SettingEntry *
UserSettingsController::GetInstanceEntry (const ConstString &const_var_name)
{
for (int i = 0; i < m_settings.instance_settings.size(); ++i)
{
SettingEntry &entry = m_settings.instance_settings[i];
ConstString entry_name (entry.var_name);
if (entry_name == const_var_name)
return &entry;
}
return NULL;
}
void
UserSettingsController::BuildParentPrefix (std::string &parent_prefix)
{
lldb::UserSettingsControllerSP parent = GetParent();
if (parent.get() != NULL)
{
parent->BuildParentPrefix (parent_prefix);
if (parent_prefix.length() > 0)
parent_prefix.append (".");
}
parent_prefix.append (GetLevelName().AsCString());
}
void
UserSettingsController::RemoveChild (const lldb::UserSettingsControllerSP &child)
{
Mutex::Locker locker (m_children_mutex);
std::vector<lldb::UserSettingsControllerSP>::iterator pos, end = m_children.end();
for (pos = m_children.begin(); pos != end; ++pos)
{
lldb::UserSettingsControllerSP entry = *pos;
if (entry == child)
{
m_children.erase (pos);
break;
}
}
}
Error
UserSettingsController::SetVariable (const char *full_dot_name,
const char *value,
const lldb::VarSetOperationType op,
const bool override,
const char *index_value)
{
Error err;
ConstString const_var_name;
const ConstString &default_name = InstanceSettings::GetDefaultName();
Args names = UserSettingsController::BreakNameIntoPieces (full_dot_name);
int num_pieces = names.GetArgumentCount();
if (num_pieces < 1)
{
err.SetErrorStringWithFormat ("'%s' is not a valid variable name; cannot assign value.\n", full_dot_name);
return err;
}
ConstString prefix (names.GetArgumentAtIndex (0));
if ((prefix == m_settings.level_name)
|| (m_settings.level_name.GetLength() == 0))
{
if (prefix == m_settings.level_name)
{
names.Shift ();
num_pieces = names.GetArgumentCount();
}
if (num_pieces == 0)
{
err.SetErrorString ("No variable name specified; cannot assign value.\n");
return err;
}
else if (num_pieces == 1)
{
// Must be one of the class-wide settings.
const_var_name.SetCString (names.GetArgumentAtIndex (0));
const SettingEntry *entry = GetGlobalEntry (const_var_name);
if (entry)
{
UserSettingsController::VerifyOperationForType (entry->var_type, op, const_var_name, err);
if (err.Fail())
return err;
if ((value == NULL || value[0] == '\0')
&& (op == lldb::eVarSetOperationAssign))
{
if (entry->var_type != lldb::eSetVarTypeEnum)
value = entry->default_value;
else
value = entry->enum_values[0].string_value;
}
UpdateGlobalVariable (const_var_name, index_value, value, *entry, op, err);
}
else
{
// MIGHT be instance variable, to be for ALL instances.
entry = GetInstanceEntry (const_var_name);
if (entry == NULL)
{
err.SetErrorStringWithFormat ("Unable to find variable '%s.%s'; cannot assign value.\n",
prefix.AsCString(), const_var_name.AsCString());
return err;
}
else
{
UserSettingsController::VerifyOperationForType (entry->var_type, op, const_var_name, err);
if (err.Fail())
return err;
if ((value == NULL || value[0] == '\0')
&& (op == lldb::eVarSetOperationAssign))
{
if (entry->var_type != lldb::eSetVarTypeEnum)
value = entry->default_value;
else
value = entry->enum_values[0].string_value;
}
m_default_settings->UpdateInstanceSettingsVariable (const_var_name, index_value, value,
default_name, *entry, op, err, true);
if (override)
{
OverrideAllInstances (const_var_name, value, op, index_value, err);
// Update all pending records as well.
std::map<std::string, lldb::InstanceSettingsSP>::iterator pos, end = m_pending_settings.end();
for (pos = m_pending_settings.begin(); pos != end; end++)
{
const ConstString instance_name (pos->first.c_str());
lldb::InstanceSettingsSP setting_sp = pos->second;
setting_sp->UpdateInstanceSettingsVariable (const_var_name, index_value, value,
instance_name, *entry, op, err, true);
}
}
}
}
}
else
{
// Either a child's setting or an instance setting.
if (names.GetArgumentAtIndex(0)[0] == '[')
{
// An instance setting. Supposedly.
ConstString instance_name (names.GetArgumentAtIndex (0));
// First verify that there is only one more name.
names.Shift();
if (names.GetArgumentCount() != 1)
{
err.SetErrorStringWithFormat ("Invalid variable name format '%s'; cannot assign value.\n",
full_dot_name);
return err;
}
// Next verify that it is a valid instance setting name.
const_var_name.SetCString (names.GetArgumentAtIndex (0));
const SettingEntry *entry = GetInstanceEntry (const_var_name);
if (entry == NULL)
{
err.SetErrorStringWithFormat ("Unknown instance variable '%s'; cannot assign value.\n",
const_var_name.AsCString());
return err;
}
UserSettingsController::VerifyOperationForType (entry->var_type, op, const_var_name, err);
if (err.Fail())
return err;
if ((value == NULL || value[0] == '\0')
&& (op == lldb::eVarSetOperationAssign))
{
if (entry->var_type != lldb::eSetVarTypeEnum)
value = entry->default_value;
else
value = entry->enum_values[0].string_value;
}
// Now look for existing instance with given instance name; if not found, find or create pending
// setting for instance with given name.
InstanceSettings *current_settings = FindSettingsForInstance (instance_name);
if (current_settings != NULL)
{
current_settings->UpdateInstanceSettingsVariable (const_var_name, index_value, value,
instance_name, *entry, op, err, false);
}
else
{
// Instance does not currently exist; make or update a pending setting for it.
lldb::InstanceSettingsSP current_settings_sp = PendingSettingsForInstance (instance_name);
// Now we have a settings record, update it appropriately.
current_settings_sp->UpdateInstanceSettingsVariable (const_var_name, index_value, value,
instance_name, *entry, op, err, true);
{ // Scope for mutex.
Mutex::Locker locker (m_pending_settings_mutex);
m_pending_settings[instance_name.AsCString()] = current_settings_sp;
}
if (override)
{
OverrideAllInstances (const_var_name, value, op, index_value, err);
// Update all pending records as well.
std::map<std::string, lldb::InstanceSettingsSP>::iterator pos;
std::map<std::string, lldb::InstanceSettingsSP>::iterator end = m_pending_settings.end();
for (pos = m_pending_settings.begin(); pos != end; end++)
{
const ConstString tmp_inst_name (pos->first.c_str());
lldb::InstanceSettingsSP setting_sp = pos->second;
setting_sp->UpdateInstanceSettingsVariable (const_var_name, index_value, value,
tmp_inst_name, *entry, op, err, true);
}
}
}
}
else
{
// A child setting.
lldb::UserSettingsControllerSP child;
ConstString child_prefix (names.GetArgumentAtIndex (0));
int num_children = GetNumChildren();
bool found = false;
for (int i = 0; i < num_children && !found; ++i)
{
child = GetChildAtIndex (i);
ConstString current_prefix = child->GetLevelName();
if (current_prefix == child_prefix)
{
found = true;
std::string new_name;
for (int j = 0; j < names.GetArgumentCount(); ++j)
{
if (j > 0)
new_name += '.';
new_name += names.GetArgumentAtIndex (j);
}
return child->SetVariable (new_name.c_str(), value, op, override, index_value);
}
}
if (!found)
{
err.SetErrorStringWithFormat ("Unable to find variable '%s'; cannot assign value.\n",
full_dot_name);
return err;
}
}
}
}
else
{
err.SetErrorStringWithFormat ("'%s' is not a valid level name; was expecting '%s'. Cannot assign value.\n",
prefix.AsCString(), m_settings.level_name.AsCString());
}
return err;
}
StringList
UserSettingsController::GetVariable (const char *full_dot_name, lldb::SettableVariableType &var_type)
{
Args names = UserSettingsController::BreakNameIntoPieces (full_dot_name);
ConstString const_var_name;
StringList value;
int num_pieces = names.GetArgumentCount();
ConstString prefix (names.GetArgumentAtIndex (0));
const_var_name.SetCString (names.GetArgumentAtIndex (num_pieces - 1));
const SettingEntry *global_entry = GetGlobalEntry (const_var_name);
const SettingEntry *instance_entry = GetInstanceEntry (const_var_name);
if ((prefix != m_settings.level_name)
&& (m_settings.level_name.GetLength () > 0))
{
value.AppendString ("Invalid variable name");
return value;
}
// prefix name matched; remove it from names.
if (m_settings.level_name.GetLength() > 0)
names.Shift();
// Should we pass this off to a child? If there is more than one name piece left, and the next name piece
// matches a child prefix, then yes.
lldb::UserSettingsControllerSP child;
if (names.GetArgumentCount() > 1)
{
ConstString child_prefix (names.GetArgumentAtIndex (0));
bool found = false;
for (int i = 0; i < m_children.size() && !found; ++i)
{
if (child_prefix == m_children[i]->GetLevelName())
{
found = true;
child = m_children[i];
std::string new_name;
for (int j = 0; j < names.GetArgumentCount(); ++j)
{
if (j > 0)
new_name += '.';
new_name += names.GetArgumentAtIndex (j);
}
return child->GetVariable (new_name.c_str(), var_type);
}
}
if (!found)
{
// Cannot be handled by a child, because name did not match any child prefixes.
// Cannot be a class-wide variable because there are too many name pieces.
if (instance_entry != NULL)
{
var_type = instance_entry->var_type;
ConstString instance_name (names.GetArgumentAtIndex (0));
InstanceSettings *current_settings = FindSettingsForInstance (instance_name);
if (current_settings != NULL)
{
current_settings->GetInstanceSettingsValue (*instance_entry, const_var_name, value);
}
else
{
// Look for instance name setting in pending settings.
std::string inst_name_str = instance_name.AsCString();
std::map<std::string, lldb::InstanceSettingsSP>::iterator pos;
pos = m_pending_settings.find (inst_name_str);
if (pos != m_pending_settings.end())
{
lldb::InstanceSettingsSP settings_sp = pos->second;
settings_sp->GetInstanceSettingsValue (*instance_entry, const_var_name, value);
}
else
{
// No valid instance name; assume they want the default settings.
m_default_settings->GetInstanceSettingsValue (*instance_entry, const_var_name, value);
}
}
}
else
value.AppendString ("Invalid variable name");
}
}
else
{
// Only one name left. It must belong to the current level, or be an error.
if ((global_entry == NULL)
&& (instance_entry == NULL))
{
value.AppendString ("Invalid variable name");
}
else if (global_entry)
{
var_type = global_entry->var_type;
GetGlobalSettingsValue (const_var_name, value);
}
else if (instance_entry)
{
var_type = instance_entry->var_type;
m_default_settings->GetInstanceSettingsValue (*instance_entry, const_var_name, value);
}
}
return value;
}
void
UserSettingsController::RemovePendingSettings (const ConstString &instance_name)
{
std::map<std::string, lldb::InstanceSettingsSP>::iterator pos;
std::string instance_name_str (instance_name.AsCString());
Mutex::Locker locker (m_pending_settings_mutex);
m_pending_settings.erase (instance_name_str);
}
const lldb::InstanceSettingsSP &
UserSettingsController::FindPendingSettings (const ConstString &instance_name)
{
std::map<std::string, lldb::InstanceSettingsSP>::iterator pos;
std::string instance_name_str (instance_name.AsCString());
{ // Scope for mutex.
Mutex::Locker locker (m_pending_settings_mutex);
pos = m_pending_settings.find (instance_name_str);
if (pos != m_pending_settings.end())
return pos->second;
}
return m_default_settings;
}
void
UserSettingsController::CreateDefaultInstanceSettings ()
{
Error err;
const ConstString &default_name = InstanceSettings::GetDefaultName();
for (int i = 0; i < m_settings.instance_settings.size(); ++i)
{
SettingEntry &entry = m_settings.instance_settings[i];
ConstString var_name (entry.var_name);
const char *value = entry.default_value;
if (entry.var_type == lldb::eSetVarTypeEnum)
value = entry.enum_values[0].string_value;
m_default_settings->UpdateInstanceSettingsVariable (var_name, NULL, value, default_name, entry,
lldb::eVarSetOperationAssign, err, true);
}
}
void
UserSettingsController::CopyDefaultSettings (const lldb::InstanceSettingsSP &actual_settings,
const ConstString &instance_name,
bool pending)
{
Error err;
for (int i = 0; i < m_settings.instance_settings.size(); ++i)
{
SettingEntry &entry = m_settings.instance_settings[i];
ConstString var_name (entry.var_name);
StringList value;
m_default_settings->GetInstanceSettingsValue (entry, var_name, value);
std::string value_str;
if (value.GetSize() == 1)
value_str.append (value.GetStringAtIndex (0));
else if (value.GetSize() > 1)
{
for (int j = 0; j < value.GetSize(); ++j)
{
if (j > 0)
value_str.append (" ");
value_str.append (value.GetStringAtIndex (j));
}
}
actual_settings->UpdateInstanceSettingsVariable (var_name, NULL, value_str.c_str(), instance_name, entry,
lldb::eVarSetOperationAssign, err, pending);
}
}
lldb::InstanceSettingsSP
UserSettingsController::PendingSettingsForInstance (const ConstString &instance_name)
{
std::string name_str (instance_name.AsCString());
std::map<std::string, lldb::InstanceSettingsSP>::iterator pos;
Mutex::Locker locker (m_pending_settings_mutex);
pos = m_pending_settings.find (name_str);
if (pos != m_pending_settings.end())
{
lldb::InstanceSettingsSP settings_sp = pos->second;
return settings_sp;
}
else
{
lldb::InstanceSettingsSP default_settings_sp =
m_pending_settings[InstanceSettings::GetDefaultName().AsCString()];
lldb::InstanceSettingsSP new_settings_sp = CreateNewInstanceSettings ();
CopyDefaultSettings (new_settings_sp, instance_name, true);
m_pending_settings[name_str] = new_settings_sp;
return new_settings_sp;
}
// Should never reach this line.
lldb::InstanceSettingsSP dummy;
return dummy;
}
void
UserSettingsController::GetAllDefaultSettingValues (StreamString &result_stream)
{
std::string parent_prefix;
BuildParentPrefix (parent_prefix);
const char *prefix = parent_prefix.c_str();
for (int i = 0; i < m_settings.instance_settings.size(); ++i)
{
SettingEntry &entry = m_settings.instance_settings[i];
ConstString var_name (entry.var_name);
StringList tmp_value;
m_default_settings->GetInstanceSettingsValue (entry, var_name, tmp_value);
StreamString value_string;
if (tmp_value.GetSize() == 1)
value_string.Printf ("%s", tmp_value.GetStringAtIndex (0));
else
{
for (int j = 0; j < tmp_value.GetSize(); ++j)
value_string.Printf ("%s ", tmp_value.GetStringAtIndex (j));
}
if (! parent_prefix.empty()) // May need to test size() > 0
result_stream.Printf ("%s.[DEFAULT].%s (%s) = '%s'\n", prefix, var_name.AsCString(),
UserSettingsController::GetTypeString (entry.var_type), value_string.GetData());
else
result_stream.Printf ("[DEFAULT].%s (%s) = '%s'\n", var_name.AsCString(),
UserSettingsController::GetTypeString (entry.var_type), value_string.GetData());
}
}
void
UserSettingsController::GetAllPendingSettingValues (StreamString &result_stream)
{
//StreamString description;
std::map<std::string, lldb::InstanceSettingsSP>::iterator pos;
std::string parent_prefix;
BuildParentPrefix (parent_prefix);
const char *prefix = parent_prefix.c_str();
for (pos = m_pending_settings.begin(); pos != m_pending_settings.end(); ++pos)
{
std::string tmp_name = pos->first;
lldb::InstanceSettingsSP settings_sp = pos->second;
const ConstString instance_name (tmp_name.c_str());
for (int i = 0; i < m_settings.instance_settings.size(); ++i)
{
SettingEntry &entry = m_settings.instance_settings[i];
ConstString var_name (entry.var_name);
StringList tmp_value;
settings_sp->GetInstanceSettingsValue (entry, var_name, tmp_value);
StreamString value_str;
if (tmp_value.GetSize() == 0)
break;
if (tmp_value.GetSize() == 1)
value_str.Printf ("%s", tmp_value.GetStringAtIndex (0));
else
{
for (int j = 0; j < tmp_value.GetSize(); ++j)
value_str.Printf ("%s ", tmp_value.GetStringAtIndex (j));
}
if (parent_prefix.length() > 0)
{
result_stream.Printf ("%s.%s.%s (%s) = '%s' [pending]\n", prefix, instance_name.AsCString(),
var_name.AsCString(), UserSettingsController::GetTypeString (entry.var_type),
value_str.GetData());
}
else
{
result_stream.Printf ("%s (%s) = '%s' [pending]\n", var_name.AsCString(),
UserSettingsController::GetTypeString (entry.var_type),
value_str.GetData());
}
}
}
}
InstanceSettings *
UserSettingsController::FindSettingsForInstance (const ConstString &instance_name)
{
std::string instance_name_str (instance_name.AsCString());
std::map<std::string, InstanceSettings *>::iterator pos;
pos = m_live_settings.find (instance_name_str);
if (pos != m_live_settings.end ())
{
InstanceSettings *settings = pos->second;
return settings;
}
return NULL;
}
void
UserSettingsController::GetAllInstanceVariableValues (CommandInterpreter &interpreter,
StreamString &result_stream)
{
std::map<std::string, InstanceSettings *>::iterator pos;
std::string parent_prefix;
BuildParentPrefix (parent_prefix);
const char *prefix = parent_prefix.c_str();
StreamString description;
for (pos = m_live_settings.begin(); pos != m_live_settings.end(); ++pos)
{
std::string instance_name = pos->first;
InstanceSettings *settings = pos->second;
for (int i = 0; i < m_settings.instance_settings.size(); ++i)
{
SettingEntry &entry = m_settings.instance_settings[i];
const ConstString var_name (entry.var_name);
StringList tmp_value;
settings->GetInstanceSettingsValue (entry, var_name, tmp_value);
StreamString tmp_value_str;
if (tmp_value.GetSize() == 0)
break;
if (tmp_value.GetSize() == 1)
tmp_value_str.Printf ("%s", tmp_value.GetStringAtIndex (0));
else
{
for (int j = 0; j < tmp_value.GetSize(); ++j)
tmp_value_str.Printf ("%s ",tmp_value.GetStringAtIndex (j));
}
description.Clear();
if (parent_prefix.length() > 0)
{
description.Printf ("%s.%s.%s (%s) = '%s'", prefix, instance_name.c_str(), var_name.AsCString(),
UserSettingsController::GetTypeString (entry.var_type),
tmp_value_str.GetData());
}
else
{
description.Printf ("%s (%s) = '%s'", var_name.AsCString(),
UserSettingsController::GetTypeString (entry.var_type), tmp_value_str.GetData());
}
result_stream.Printf ("%s\n", description.GetData());
}
}
}
void
UserSettingsController::OverrideAllInstances (const ConstString &var_name,
const char *value,
lldb::VarSetOperationType op,
const char *index_value,
Error &err)
{
std::map<std::string, InstanceSettings *>::iterator pos;
StreamString description;
for (pos = m_live_settings.begin(); pos != m_live_settings.end(); ++pos)
{
InstanceSettings *settings = pos->second;
StreamString tmp_name;
tmp_name.Printf ("[%s]", settings->GetInstanceName().AsCString());
const ConstString instance_name (tmp_name.GetData());
const SettingEntry *entry = GetInstanceEntry (var_name);
settings->UpdateInstanceSettingsVariable (var_name, index_value, value, instance_name, *entry, op, err, false);
}
}
void
UserSettingsController::RegisterInstanceSettings (InstanceSettings *instance_settings)
{
Mutex::Locker locker (m_live_settings_mutex);
StreamString tmp_name;
tmp_name.Printf ("[%s]", instance_settings->GetInstanceName().AsCString());
const ConstString instance_name (tmp_name.GetData());
std::string instance_name_str (instance_name.AsCString());
if (instance_name_str.compare (InstanceSettings::GetDefaultName().AsCString()) != 0)
m_live_settings[instance_name_str] = instance_settings;
}
void
UserSettingsController::UnregisterInstanceSettings (InstanceSettings *instance)
{
Mutex::Locker locker (m_live_settings_mutex);
StreamString tmp_name;
tmp_name.Printf ("[%s]", instance->GetInstanceName().AsCString());
std::string instance_name (tmp_name.GetData());
std::map <std::string, InstanceSettings *>::iterator pos;
pos = m_live_settings.find (instance_name);
if (pos != m_live_settings.end())
m_live_settings.erase (pos);
}
void
UserSettingsController::CreateSettingsVector (const SettingEntry *table,
bool global)
{
int i = 0;
while (table[i].var_name != NULL)
{
const SettingEntry &table_entry = table[i];
ConstString const_var_name (table_entry.var_name);
SettingEntry new_entry;
new_entry = table_entry;
new_entry.var_name = const_var_name.AsCString();
if (global)
m_settings.global_settings.push_back (new_entry);
else
m_settings.instance_settings.push_back (new_entry);
++i;
}
}
//----------------------------------------------------------------------
// UserSettingsController static methods
//----------------------------------------------------------------------
int
FindMaxNameLength (std::vector<SettingEntry> table)
{
int max_length = 1;
for (int i = 0; i < table.size(); ++i)
{
int len = strlen (table[i].var_name);
if (len > max_length)
max_length = len;
}
return max_length;
}
const char *
UserSettingsController::GetTypeString (lldb::SettableVariableType var_type)
{
switch (var_type)
{
case lldb::eSetVarTypeInt:
return "int";
case lldb::eSetVarTypeBool:
return "boolean";
case lldb::eSetVarTypeString:
return "string";
case lldb::eSetVarTypeArray:
return "array";
case lldb::eSetVarTypeDictionary:
return "dictionary";
case lldb::eSetVarTypeEnum:
return "enum";
case lldb::eSetVarTypeNone:
return "no type";
}
return "";
}
void
UserSettingsController::PrintEnumValues (const lldb::OptionEnumValueElement *enum_values, Stream &str)
{
int i = 0;
while (enum_values[i].string_value != NULL)
{
str.Printf ("%s ", enum_values[i].string_value);
++i;
}
}
void
UserSettingsController::FindAllSettingsDescriptions (CommandInterpreter &interpreter,
lldb::UserSettingsControllerSP root,
std::string &current_prefix,
StreamString &result_stream,
Error &err)
{
// Write out current prefix line.
StreamString prefix_line;
StreamString description;
uint32_t max_len;
int num_entries = root->m_settings.global_settings.size();
max_len = FindMaxNameLength (root->m_settings.global_settings);
if (! current_prefix.empty())
result_stream.Printf ("\n'%s' variables:\n\n", current_prefix.c_str());
else
result_stream.Printf ("\nTop level variables:\n\n");
if (num_entries > 0)
{
// Write out all "global" variables.
for (int i = 0; i < num_entries; ++i)
{
SettingEntry entry = root->m_settings.global_settings[i];
description.Clear();
if (entry.var_type == lldb::eSetVarTypeEnum)
{
StreamString enum_values_str;
UserSettingsController::PrintEnumValues (entry.enum_values, enum_values_str);
description.Printf ("[static, enum] %s. Valid values: {%s} (default: '%s')", entry.description,
enum_values_str.GetData(), entry.enum_values[0].string_value);
}
else if (entry.default_value != NULL)
description.Printf ("[static, %s] %s (default: '%s')", GetTypeString (entry.var_type),
entry.description, entry.default_value);
else
description.Printf ("[static, %s] %s (default: '')", GetTypeString (entry.var_type),
entry.description);
interpreter.OutputFormattedHelpText (result_stream, entry.var_name, "--", description.GetData(),
max_len);
}
}
num_entries = root->m_settings.instance_settings.size();
max_len = FindMaxNameLength (root->m_settings.instance_settings);
if (num_entries > 0)
{
// Write out all instance variables.
for (int i = 0; i < num_entries; ++i)
{
SettingEntry entry = root->m_settings.instance_settings[i];
description.Clear();
if (entry.var_type == lldb::eSetVarTypeEnum)
{
StreamString enum_values_str;
UserSettingsController::PrintEnumValues (entry.enum_values, enum_values_str);
description.Printf ("[instance, enum] %s. Valid values: {%s} (default: '%s')", entry.description,
enum_values_str.GetData(), entry.enum_values[0].string_value);
}
else if (entry.default_value != NULL)
description.Printf ("[instance, %s] %s (default: '%s')", GetTypeString (entry.var_type),
entry.description, entry.default_value);
else
description.Printf ("[instance, %s] %s (default: '')", GetTypeString (entry.var_type),
entry.description);
interpreter.OutputFormattedHelpText (result_stream, entry.var_name, "--", description.GetData(),
max_len);
}
}
// Now, recurse across all children.
int num_children = root->GetNumChildren();
for (int i = 0; i < num_children; ++i)
{
lldb::UserSettingsControllerSP child = root->GetChildAtIndex (i);
if (child)
{
ConstString child_prefix = child->GetLevelName();
StreamString new_prefix;
if (! current_prefix.empty() ) // May need to see if size() > 0
new_prefix.Printf ("%s.%s", current_prefix.c_str(), child_prefix.AsCString());
else
new_prefix.Printf ("%s", child_prefix.AsCString());
std::string new_prefix_str = new_prefix.GetData();
UserSettingsController::FindAllSettingsDescriptions (interpreter, child, new_prefix_str, result_stream,
err);
}
}
}
void
UserSettingsController::GetAllVariableValues (CommandInterpreter &interpreter,
lldb::UserSettingsControllerSP root,
std::string &current_prefix,
StreamString &result_stream,
Error &err)
{
StreamString description;
int num_entries = root->m_settings.global_settings.size();
lldb::SettableVariableType var_type;
for (int i = 0; i < num_entries; ++i)
{
StreamString full_var_name;
SettingEntry entry = root->m_settings.global_settings[i];
if (! current_prefix.empty()) // May need to see if size() > 0
full_var_name.Printf ("%s.%s", current_prefix.c_str(), entry.var_name);
else
full_var_name.Printf ("%s", entry.var_name);
StringList value = root->GetVariable (full_var_name.GetData(), var_type);
description.Clear();
if (value.GetSize() == 1)
description.Printf ("%s (%s) = %s", full_var_name.GetData(), GetTypeString (entry.var_type),
value.GetStringAtIndex (0));
else
{
description.Printf ("%s (%s) = ", full_var_name.GetData(), GetTypeString (entry.var_type));
for (int j = 0; j < value.GetSize(); ++j)
description.Printf ("%s ", value.GetStringAtIndex (j));
}
result_stream.Printf ("%s\n", description.GetData());
}
root->GetAllInstanceVariableValues (interpreter, result_stream);
root->GetAllPendingSettingValues (result_stream);
root->GetAllDefaultSettingValues (result_stream);
// Now, recurse across all children.
int num_children = root->GetNumChildren();
for (int i = 0; i < num_children; ++i)
{
lldb::UserSettingsControllerSP child = root->GetChildAtIndex (i);
if (child)
{
ConstString child_prefix = child->GetLevelName();
StreamString new_prefix;
if (! current_prefix.empty()) // May need to see if size() > 0
new_prefix.Printf ("%s.%s", current_prefix.c_str(), child_prefix.AsCString());
else
new_prefix.Printf ("%s", child_prefix.AsCString());
std::string new_prefix_str = new_prefix.GetData();
UserSettingsController::GetAllVariableValues (interpreter, child, new_prefix_str, result_stream,
err);
}
}
}
Args
UserSettingsController::BreakNameIntoPieces (const char *full_dot_name)
{
Args return_value;
std::string name_string (full_dot_name);
bool done = false;
std::string piece;
std::string remainder (full_dot_name);
while (!done)
{
size_t idx = remainder.find_first_of ('.');
piece = remainder.substr (0, idx);
return_value.AppendArgument (piece.c_str());
if (idx != std::string::npos)
remainder = remainder.substr (idx+1);
else
done = true;
}
return return_value;
}
bool
UserSettingsController::IsLiveInstance (const std::string &instance_name)
{
std::map<std::string, InstanceSettings *>::iterator pos;
pos = m_live_settings.find (instance_name);
if (pos != m_live_settings.end())
return true;
return false;
}
int
UserSettingsController::CompleteSettingsValue (lldb::UserSettingsControllerSP root_settings,
const char *full_dot_name,
const char *partial_value,
bool &word_complete,
StringList &matches)
{
Args names = UserSettingsController::BreakNameIntoPieces (full_dot_name);
int num_pieces = names.GetArgumentCount();
word_complete = true;
ConstString root_level = root_settings->GetLevelName();
int num_extra_levels = num_pieces - 2;
if ((num_extra_levels > 0)
&& root_level.GetLength() > 0)
{
ConstString current_level (names.GetArgumentAtIndex (0));
if (current_level == root_level)
{
names.Shift();
--num_extra_levels;
}
else
return 0;
}
for (int i = 0; i < num_extra_levels; ++i)
{
ConstString child_level (names.GetArgumentAtIndex (0));
bool found = false;
int num_children = root_settings->GetNumChildren();
for (int j = 0; j < num_children && !found; ++j)
{
if (root_settings->GetChildAtIndex (j)->GetLevelName() == child_level)
{
found = true;
root_settings = root_settings->GetChildAtIndex (j);
names.Shift();
}
}
if (!found)
return 0;
}
if (names.GetArgumentCount() != 2)
return 0;
std::string next_name (names.GetArgumentAtIndex (0));
int len = next_name.length();
names.Shift();
if ((next_name[0] == '[') && (next_name[len-1] == ']'))
{
// 'next_name' is instance name. Instance names are irrelevent here.
}
else
{
// 'next_name' is child name.
bool found = false;
int num_children = root_settings->GetNumChildren();
ConstString child_level (next_name.c_str());
for (int j = 0; j < num_children && !found; ++j)
{
if (root_settings->GetChildAtIndex (j)->GetLevelName() == child_level)
{
found = true;
root_settings = root_settings->GetChildAtIndex (j);
}
}
if (!found)
return 0;
}
ConstString var_name (names.GetArgumentAtIndex(0));
const SettingEntry *entry = root_settings->GetGlobalEntry (var_name);
if (entry == NULL)
entry = root_settings->GetInstanceEntry (var_name);
if (entry == NULL)
return 0;
if (entry->var_type == lldb::eSetVarTypeBool)
return UserSettingsController::BooleanMatches (partial_value, word_complete, matches);
else if (entry->var_type == lldb::eSetVarTypeEnum)
return UserSettingsController::EnumMatches (partial_value, entry->enum_values, word_complete, matches);
else
return 0;
}
int
UserSettingsController::BooleanMatches (const char *partial_value,
bool &word_complete,
StringList &matches)
{
static const std::string true_string ("true");
static const std::string false_string ("false");
if (partial_value == NULL)
{
matches.AppendString ("true");
matches.AppendString ("false");
}
else
{
int partial_len = strlen (partial_value);
if ((partial_len <= true_string.length())
&& (true_string.find (partial_value) == 0))
matches.AppendString ("true");
else if ((partial_len <= false_string.length())
&& (false_string.find (partial_value) == 0))
matches.AppendString ("false");
}
word_complete = false;
if (matches.GetSize() == 1)
word_complete = true;
return matches.GetSize();
}
int
UserSettingsController::EnumMatches (const char *partial_value,
lldb::OptionEnumValueElement *enum_values,
bool &word_complete,
StringList &matches)
{
int len = (partial_value != NULL) ? strlen (partial_value) : 0;
int i = 0;
while (enum_values[i].string_value != NULL)
{
if (len == 0)
matches.AppendString (enum_values[i].string_value);
else
{
std::string tmp_value (enum_values[i].string_value);
if ((len <= tmp_value.length())
&& tmp_value.find (partial_value) == 0)
matches.AppendString (enum_values[i].string_value);
}
++i;
}
word_complete = false;
if (matches.GetSize() == 1)
word_complete = true;
return matches.GetSize();
}
int
UserSettingsController::CompleteSettingsNames (lldb::UserSettingsControllerSP root_settings,
Args &partial_setting_name_pieces,
bool &word_complete,
StringList &matches)
{
int num_matches = 0;
int num_name_pieces = partial_setting_name_pieces.GetArgumentCount();
if (num_name_pieces > 1)
{
// There are at least two pieces, perhaps with multiple level names preceding them.
// First traverse all the extra levels, until we have exactly two pieces left.
int num_extra_levels = num_name_pieces - 2;
// Deal with current level first.
ConstString root_level = root_settings->GetLevelName();
if ((num_extra_levels > 0)
&& (root_level.GetLength() > 0))
{
ConstString current_level (partial_setting_name_pieces.GetArgumentAtIndex (0));
if (current_level == root_level)
{
partial_setting_name_pieces.Shift();
--num_extra_levels;
}
else
return 0; // The current level did not match the name pieces; something is wrong, so return immediately
}
for (int i = 0; i < num_extra_levels; ++i)
{
ConstString child_level (partial_setting_name_pieces.GetArgumentAtIndex (0));
bool found = false;
int num_children = root_settings->GetNumChildren();
for (int j = 0; j < num_children && !found; ++j)
{
if (root_settings->GetChildAtIndex (j)->GetLevelName() == child_level)
{
found = true;
root_settings = root_settings->GetChildAtIndex (j);
partial_setting_name_pieces.Shift();
}
}
if (! found)
{
return 0; // Unable to find a matching child level name; something is wrong, so return immediately.
}
}
// Now there should be exactly two name pieces left. If not there is an error, so return immediately
if (partial_setting_name_pieces.GetArgumentCount() != 2)
return 0;
std::string next_name (partial_setting_name_pieces.GetArgumentAtIndex (0));
int len = next_name.length();
partial_setting_name_pieces.Shift();
if ((next_name[0] == '[') && (next_name[len-1] == ']'))
{
// 'next_name' is an instance name. The last name piece must be a non-empty partial match against an
// instance_name, assuming 'next_name' is valid.
if (root_settings->IsLiveInstance (next_name))
{
std::string complete_prefix;
root_settings->BuildParentPrefix (complete_prefix);
num_matches = root_settings->InstanceVariableMatches(partial_setting_name_pieces.GetArgumentAtIndex(0),
complete_prefix,
next_name.c_str(),
matches);
word_complete = true;
if (num_matches > 1)
word_complete = false;
return num_matches;
}
else
return 0; // Invalid instance_name
}
else
{
// 'next_name' must be a child name. Find the correct child and pass the remaining piece to be resolved.
bool found = false;
int num_children = root_settings->GetNumChildren();
ConstString child_level (next_name.c_str());
for (int i = 0; i < num_children; ++i)
{
if (root_settings->GetChildAtIndex (i)->GetLevelName() == child_level)
{
found = true;
return UserSettingsController::CompleteSettingsNames (root_settings->GetChildAtIndex (i),
partial_setting_name_pieces,
word_complete, matches);
}
}
if (!found)
return 0;
}
}
else if (num_name_pieces == 1)
{
std::string complete_prefix;
root_settings->BuildParentPrefix (complete_prefix);
word_complete = true;
std::string name (partial_setting_name_pieces.GetArgumentAtIndex (0));
if (name[0] == '[')
{
// It's a partial instance name.
num_matches = root_settings->LiveInstanceMatches (name.c_str(), complete_prefix, word_complete, matches);
}
else
{
// It could be anything *except* an instance name...
num_matches = root_settings->GlobalVariableMatches (name.c_str(), complete_prefix, matches);
num_matches += root_settings->InstanceVariableMatches (name.c_str(), complete_prefix, NULL, matches);
num_matches += root_settings->ChildMatches (name.c_str(), complete_prefix, word_complete, matches);
}
if (num_matches > 1)
word_complete = false;
return num_matches;
}
else
{
// We have a user settings controller with a blank partial string. Return everything possible at this level.
std::string complete_prefix;
root_settings->BuildParentPrefix (complete_prefix);
num_matches = root_settings->GlobalVariableMatches (NULL, complete_prefix, matches);
num_matches += root_settings->InstanceVariableMatches (NULL, complete_prefix, NULL, matches);
num_matches += root_settings->LiveInstanceMatches (NULL, complete_prefix, word_complete, matches);
num_matches += root_settings->ChildMatches (NULL, complete_prefix, word_complete, matches);
word_complete = false;
return num_matches;
}
return num_matches;
}
int
UserSettingsController::GlobalVariableMatches (const char *partial_name,
const std::string &complete_prefix,
StringList &matches)
{
int partial_len = (partial_name != NULL) ? strlen (partial_name) : 0;
int num_matches = 0;
for (size_t i = 0; i < m_settings.global_settings.size(); ++i)
{
SettingEntry &entry = m_settings.global_settings[i];
std::string var_name (entry.var_name);
if ((partial_len == 0)
|| ((partial_len <= var_name.length())
&& (var_name.find (partial_name) == 0)))
{
StreamString match_name;
if (complete_prefix.length() > 0)
{
match_name.Printf ("%s.%s", complete_prefix.c_str(), var_name.c_str());
matches.AppendString (match_name.GetData());
}
else
matches.AppendString (var_name.c_str());
++num_matches;
}
}
return num_matches;
}
int
UserSettingsController::InstanceVariableMatches (const char *partial_name,
const std::string &complete_prefix,
const char *instance_name,
StringList &matches)
{
int partial_len = (partial_name != NULL) ? strlen (partial_name) : 0;
int num_matches = 0;
for (size_t i = 0; i < m_settings.instance_settings.size(); ++i)
{
SettingEntry &entry = m_settings.instance_settings[i];
std::string var_name (entry.var_name);
if ((partial_len == 0)
|| ((partial_len <= var_name.length())
&& (var_name.find (partial_name) == 0)))
{
StreamString match_name;
if (complete_prefix.length() > 0)
{
if (instance_name != NULL)
match_name.Printf ("%s.%s.%s", complete_prefix.c_str(), instance_name, var_name.c_str());
else
match_name.Printf ("%s.%s", complete_prefix.c_str(), var_name.c_str());
matches.AppendString (match_name.GetData());
}
else
{
if (instance_name != NULL)
{
match_name.Printf ("%s.%s", instance_name, var_name.c_str());
matches.AppendString (match_name.GetData());
}
else
matches.AppendString (var_name.c_str());
}
++num_matches;
}
}
return num_matches;
}
int
UserSettingsController::LiveInstanceMatches (const char *partial_name,
const std::string &complete_prefix,
bool &word_complete,
StringList &matches)
{
int partial_len = (partial_name != NULL) ? strlen (partial_name) : 0;
int num_matches = 0;
std::map<std::string, InstanceSettings*>::iterator pos;
for (pos = m_live_settings.begin(); pos != m_live_settings.end(); ++pos)
{
std::string instance_name = pos->first;
if ((partial_len == 0)
|| ((partial_len <= instance_name.length())
&& (instance_name.find (partial_name) == 0)))
{
StreamString match_name;
if (complete_prefix.length() > 0)
match_name.Printf ("%s.%s.", complete_prefix.c_str(), instance_name.c_str());
else
match_name.Printf ("%s.", instance_name.c_str());
matches.AppendString (match_name.GetData());
++num_matches;
}
}
if (num_matches > 0)
word_complete = false;
return num_matches;
}
int
UserSettingsController::ChildMatches (const char *partial_name,
const std::string &complete_prefix,
bool &word_complete,
StringList &matches)
{
int partial_len = (partial_name != NULL) ? strlen (partial_name) : 0;
int num_children = GetNumChildren();
int num_matches = 0;
for (int i = 0; i < num_children; ++i)
{
std::string child_name (GetChildAtIndex(i)->GetLevelName().AsCString());
StreamString match_name;
if ((partial_len == 0)
|| ((partial_len <= child_name.length())
&& (child_name.find (partial_name) == 0)))
{
if (complete_prefix.length() > 0)
match_name.Printf ("%s.%s.", complete_prefix.c_str(), child_name.c_str());
else
match_name.Printf ("%s.", child_name.c_str());
matches.AppendString (match_name.GetData());
++num_matches;
}
}
if (num_matches > 0)
word_complete = false;
return num_matches;
}
void
UserSettingsController::VerifyOperationForType (lldb::SettableVariableType var_type,
lldb::VarSetOperationType op,
const ConstString &var_name,
Error &err)
{
if (op == lldb::eVarSetOperationAssign)
return;
if (op == lldb::eVarSetOperationInvalid)
{
err.SetErrorString ("Invalid 'settings ' subcommand operation.\n");
return;
}
switch (op)
{
case lldb::eVarSetOperationInsertBefore:
case lldb::eVarSetOperationInsertAfter:
if (var_type != lldb::eSetVarTypeArray)
err.SetErrorString ("Invalid operation: This operation can only be performed on array variables.\n");
break;
case lldb::eVarSetOperationReplace:
case lldb::eVarSetOperationRemove:
if ((var_type != lldb::eSetVarTypeArray)
&& (var_type != lldb::eSetVarTypeDictionary))
err.SetErrorString ("Invalid operation: This operation can only be performed on array or dictionary"
" variables.\n");
break;
case lldb::eVarSetOperationAppend:
case lldb::eVarSetOperationClear:
if ((var_type != lldb::eSetVarTypeArray)
&& (var_type != lldb::eSetVarTypeDictionary)
&& (var_type != lldb::eSetVarTypeString))
err.SetErrorString ("Invalid operation: This operation can only be performed on array, dictionary "
"or string variables.\n");
break;
default:
break;
}
return;
}
void
UserSettingsController::UpdateStringVariable (lldb::VarSetOperationType op,
std::string &string_var,
const char *new_value,
Error &err)
{
if (op == lldb::eVarSetOperationAssign)
string_var = new_value;
else if (op == lldb::eVarSetOperationAppend)
string_var.append (new_value);
else if (op == lldb::eVarSetOperationClear)
string_var.clear();
else
err.SetErrorString ("Unrecognized operation. Cannot update value.\n");
}
void
UserSettingsController::UpdateBooleanVariable (lldb::VarSetOperationType op,
bool &bool_var,
const char *new_value,
Error &err)
{
if (op != lldb::eVarSetOperationAssign)
err.SetErrorString ("Invalid operation for Boolean variable. Cannot update value.\n");
if ((new_value == NULL)
|| (new_value[0] == '\0'))
err.SetErrorString ("Invalid value. Cannot perform update.\n");
std::string bool_val_str (new_value);
std::transform (bool_val_str.begin(), bool_val_str.end(), bool_val_str.begin(), ::tolower);
if (bool_val_str == "true")
bool_var = true;
else if (bool_val_str == "false")
bool_var = false;
}
void
UserSettingsController::UpdateStringArrayVariable (lldb::VarSetOperationType op,
const char *index_value,
Args &array_var,
const char *new_value,
Error &err)
{
int index = -1;
bool valid_index = true;
if (index_value != NULL)
{
for (int i = 0; i < strlen(index_value); ++i)
if (!isdigit (index_value[i]))
{
valid_index = false;
err.SetErrorStringWithFormat ("'%s' is not a valid integer index. Cannot update array value.\n",
index_value);
}
if (valid_index)
index = atoi (index_value);
if (index < 0
|| index >= array_var.GetArgumentCount())
{
valid_index = false;
err.SetErrorStringWithFormat ("%d is outside the bounds of the specified array variable. "
"Cannot update array value.\n", index);
}
}
switch (op)
{
case lldb::eVarSetOperationAssign:
array_var.SetCommandString (new_value);
break;
case lldb::eVarSetOperationReplace:
{
if (valid_index)
array_var.ReplaceArgumentAtIndex (index, new_value);
break;
}
case lldb::eVarSetOperationInsertBefore:
case lldb::eVarSetOperationInsertAfter:
{
if (valid_index)
{
Args new_array (new_value);
if (op == lldb::eVarSetOperationInsertAfter)
++index;
for (int i = 0; i < new_array.GetArgumentCount(); ++i)
array_var.InsertArgumentAtIndex (index, new_array.GetArgumentAtIndex (i));
}
break;
}
case lldb::eVarSetOperationRemove:
{
if (valid_index)
array_var.DeleteArgumentAtIndex (index);
break;
}
case lldb::eVarSetOperationAppend:
{
Args new_array (new_value);
array_var.AppendArguments (new_array);
break;
}
case lldb::eVarSetOperationClear:
array_var.Clear();
break;
default:
err.SetErrorString ("Unrecognized operation. Cannot update value.\n");
break;
}
}
void
UserSettingsController::UpdateDictionaryVariable (lldb::VarSetOperationType op,
const char *index_value,
std::map<std::string, std::string> &dictionary,
const char *new_value,
Error &err)
{
switch (op)
{
case lldb::eVarSetOperationReplace:
if (index_value != NULL)
{
std::string key (index_value);
std::map<std::string, std::string>::iterator pos;
pos = dictionary.find (key);
if (pos != dictionary.end())
dictionary[key] = new_value;
else
err.SetErrorStringWithFormat ("'%s' is not an existing key; cannot replace value.\n", index_value);
}
else
err.SetErrorString ("'settings replace' requires a key for dictionary variables. No key supplied.\n");
break;
case lldb::eVarSetOperationRemove:
if (index_value != NULL)
{
std::string key (index_value);
dictionary.erase (key);
}
else
err.SetErrorString ("'settings remove' requires a key for dictionary variables. No key supplied.\n");
break;
case lldb::eVarSetOperationClear:
dictionary.clear ();
break;
case lldb::eVarSetOperationAppend:
case lldb::eVarSetOperationAssign:
{
Args args (new_value);
size_t num_args = args.GetArgumentCount();
for (size_t i = 0; i < num_args; ++i)
{
std::string tmp_arg = args.GetArgumentAtIndex (i);
size_t eq_sign = tmp_arg.find ('=');
if (eq_sign != std::string::npos)
{
if (eq_sign > 4)
{
std::string tmp_key = tmp_arg.substr (0, eq_sign);
std::string real_value = tmp_arg.substr (eq_sign+1);
if ((tmp_key[0] == '[')
&& (tmp_key[1] == '"')
&& (tmp_key[eq_sign-2] == '"')
&& (tmp_key[eq_sign-1] == ']'))
{
std::string real_key = tmp_key.substr (2, eq_sign-4);
dictionary[real_key] = real_value;
}
else
err.SetErrorString ("Invalid key format for dictionary assignment. "
"Expected '[\"<key>\"]'\n");
}
else
err.SetErrorString ("Invalid key format for dictionary assignment. "
"Expected '[\"<key>\"]'\n");
}
else
err.SetErrorString ("Invalid format for dictionary value. Expected '[\"<key>\"]=<value>'\n");
}
}
break;
case lldb::eVarSetOperationInsertBefore:
case lldb::eVarSetOperationInsertAfter:
err.SetErrorString ("Specified operation cannot be performed on dictionary variables.\n");
break;
default:
err.SetErrorString ("Unrecognized operation.\n");
break;
}
}
const char *
UserSettingsController::EnumToString (const lldb::OptionEnumValueElement *enum_values,
int value)
{
int i = 0;
while (enum_values[i].string_value != NULL)
{
if (enum_values[i].value == value)
return enum_values[i].string_value;
++i;
}
return "Invalid enumeration value";
}
void
UserSettingsController::UpdateEnumVariable (lldb::OptionEnumValueElement *enum_values,
int *enum_var,
const char *new_value,
Error &err)
{
bool found_one;
*enum_var = Args::StringToOptionEnum (new_value, enum_values, enum_values[0].value, &found_one);
if (!found_one)
err.SetErrorString ("Invalid enumeration value; cannot update variable.\n");
}
//----------------------------------------------------------------------
// class InstanceSettings
//----------------------------------------------------------------------
InstanceSettings::InstanceSettings (UserSettingsController &owner, const char *instance_name) :
m_owner (owner),
m_instance_name (instance_name)
{
if (m_instance_name != InstanceSettings::GetDefaultName())
m_owner.RegisterInstanceSettings (this);
}
InstanceSettings::~InstanceSettings ()
{
if (m_instance_name != InstanceSettings::GetDefaultName())
m_owner.UnregisterInstanceSettings (this);
}
const ConstString &
InstanceSettings::GetDefaultName ()
{
static const ConstString g_default_settings_name ("[DEFAULT]");
return g_default_settings_name;
}
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