forked from OSchip/llvm-project
1374 lines
53 KiB
C++
1374 lines
53 KiB
C++
//===-- CommandObjectSource.cpp ---------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "CommandObjectCommands.h"
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// C Includes
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// C++ Includes
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// Other libraries and framework includes
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#include "llvm/ADT/StringRef.h"
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// Project includes
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#include "CommandObjectPythonFunction.h"
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#include "lldb/Core/Debugger.h"
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#include "lldb/Core/InputReader.h"
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#include "lldb/Core/InputReaderEZ.h"
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#include "lldb/Core/StringList.h"
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#include "lldb/Interpreter/Args.h"
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#include "lldb/Interpreter/CommandInterpreter.h"
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#include "lldb/Interpreter/CommandObjectRegexCommand.h"
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#include "lldb/Interpreter/CommandReturnObject.h"
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#include "lldb/Interpreter/Options.h"
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using namespace lldb;
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using namespace lldb_private;
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//-------------------------------------------------------------------------
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// CommandObjectCommandsSource
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//-------------------------------------------------------------------------
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class CommandObjectCommandsHistory : public CommandObject
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{
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private:
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class CommandOptions : public Options
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{
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public:
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CommandOptions (CommandInterpreter &interpreter) :
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Options (interpreter)
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{
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}
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virtual
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~CommandOptions (){}
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virtual Error
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SetOptionValue (uint32_t option_idx, const char *option_arg)
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{
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Error error;
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char short_option = (char) m_getopt_table[option_idx].val;
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bool success;
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switch (short_option)
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{
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case 'c':
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m_end_idx = Args::StringToUInt32(option_arg, UINT_MAX, 0, &success);
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if (!success)
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error.SetErrorStringWithFormat("Invalid value for count: %s.\n", option_arg);
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if (m_end_idx != 0)
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m_end_idx--;
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m_start_idx = 0;
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break;
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case 'e':
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m_end_idx = Args::StringToUInt32(option_arg, 0, 0, &success);
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if (!success)
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error.SetErrorStringWithFormat("Invalid value for end index: %s.\n", option_arg);
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break;
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case 's':
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m_start_idx = Args::StringToUInt32(option_arg, 0, 0, &success);
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if (!success)
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error.SetErrorStringWithFormat("Invalid value for start index: %s.\n", option_arg);
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break;
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default:
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error.SetErrorStringWithFormat ("Unrecognized option '%c'.\n", short_option);
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break;
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}
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return error;
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}
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void
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OptionParsingStarting ()
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{
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m_start_idx = 0;
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m_end_idx = UINT_MAX;
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}
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const OptionDefinition*
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GetDefinitions ()
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{
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return g_option_table;
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}
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// Options table: Required for subclasses of Options.
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static OptionDefinition g_option_table[];
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// Instance variables to hold the values for command options.
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uint32_t m_start_idx;
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uint32_t m_end_idx;
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};
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CommandOptions m_options;
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virtual Options *
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GetOptions ()
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{
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return &m_options;
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}
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public:
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CommandObjectCommandsHistory(CommandInterpreter &interpreter) :
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CommandObject (interpreter,
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"command history",
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"Dump the history of commands in this session.",
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NULL),
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m_options (interpreter)
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{
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}
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~CommandObjectCommandsHistory ()
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{
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}
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bool
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Execute
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(
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Args& args,
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CommandReturnObject &result
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)
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{
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m_interpreter.DumpHistory (result.GetOutputStream(),
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m_options.m_start_idx,
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m_options.m_end_idx);
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return result.Succeeded();
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}
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};
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OptionDefinition
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CommandObjectCommandsHistory::CommandOptions::g_option_table[] =
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{
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{ LLDB_OPT_SET_1, false, "count", 'c', required_argument, NULL, 0, eArgTypeUnsignedInteger, "How many history commands to print."},
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{ LLDB_OPT_SET_1, false, "start-index", 's', required_argument, NULL, 0, eArgTypeUnsignedInteger, "Index at which to start printing history commands."},
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{ LLDB_OPT_SET_1, false, "end-index", 'e', required_argument, NULL, 0, eArgTypeUnsignedInteger, "Index at which to stop printing history commands."},
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{ 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL }
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};
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//-------------------------------------------------------------------------
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// CommandObjectCommandsSource
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//-------------------------------------------------------------------------
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class CommandObjectCommandsSource : public CommandObject
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{
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private:
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class CommandOptions : public Options
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{
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public:
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CommandOptions (CommandInterpreter &interpreter) :
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Options (interpreter)
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{
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}
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virtual
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~CommandOptions (){}
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virtual Error
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SetOptionValue (uint32_t option_idx, const char *option_arg)
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{
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Error error;
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char short_option = (char) m_getopt_table[option_idx].val;
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bool success;
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switch (short_option)
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{
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case 'e':
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m_stop_on_error = Args::StringToBoolean(option_arg, true, &success);
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if (!success)
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error.SetErrorStringWithFormat("Invalid value for stop-on-error: %s.\n", option_arg);
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break;
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case 'c':
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m_stop_on_continue = Args::StringToBoolean(option_arg, true, &success);
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if (!success)
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error.SetErrorStringWithFormat("Invalid value for stop-on-continue: %s.\n", option_arg);
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break;
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default:
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error.SetErrorStringWithFormat ("Unrecognized option '%c'.\n", short_option);
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break;
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}
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return error;
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}
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void
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OptionParsingStarting ()
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{
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m_stop_on_error = true;
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m_stop_on_continue = true;
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}
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const OptionDefinition*
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GetDefinitions ()
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{
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return g_option_table;
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}
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// Options table: Required for subclasses of Options.
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static OptionDefinition g_option_table[];
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// Instance variables to hold the values for command options.
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bool m_stop_on_error;
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bool m_stop_on_continue;
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};
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CommandOptions m_options;
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virtual Options *
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GetOptions ()
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{
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return &m_options;
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}
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public:
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CommandObjectCommandsSource(CommandInterpreter &interpreter) :
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CommandObject (interpreter,
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"command source",
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"Read in debugger commands from the file <filename> and execute them.",
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NULL),
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m_options (interpreter)
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{
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CommandArgumentEntry arg;
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CommandArgumentData file_arg;
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// Define the first (and only) variant of this arg.
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file_arg.arg_type = eArgTypeFilename;
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file_arg.arg_repetition = eArgRepeatPlain;
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// There is only one variant this argument could be; put it into the argument entry.
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arg.push_back (file_arg);
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// Push the data for the first argument into the m_arguments vector.
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m_arguments.push_back (arg);
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}
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~CommandObjectCommandsSource ()
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{
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}
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bool
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Execute
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(
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Args& args,
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CommandReturnObject &result
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)
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{
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const int argc = args.GetArgumentCount();
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if (argc == 1)
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{
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const char *filename = args.GetArgumentAtIndex(0);
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result.AppendMessageWithFormat ("Executing commands in '%s'.\n", filename);
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FileSpec cmd_file (filename, true);
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ExecutionContext *exe_ctx = NULL; // Just use the default context.
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bool echo_commands = true;
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bool print_results = true;
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m_interpreter.HandleCommandsFromFile (cmd_file,
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exe_ctx,
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m_options.m_stop_on_continue,
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m_options.m_stop_on_error,
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echo_commands,
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print_results,
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result);
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}
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else
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{
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result.AppendErrorWithFormat("'%s' takes exactly one executable filename argument.\n", GetCommandName());
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result.SetStatus (eReturnStatusFailed);
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}
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return result.Succeeded();
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}
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};
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OptionDefinition
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CommandObjectCommandsSource::CommandOptions::g_option_table[] =
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{
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{ LLDB_OPT_SET_ALL, false, "stop-on-error", 'e', required_argument, NULL, 0, eArgTypeBoolean, "If true, stop executing commands on error."},
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{ LLDB_OPT_SET_ALL, false, "stop-on-continue", 'c', required_argument, NULL, 0, eArgTypeBoolean, "If true, stop executing commands on continue."},
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{ 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL }
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};
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#pragma mark CommandObjectCommandsAlias
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//-------------------------------------------------------------------------
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// CommandObjectCommandsAlias
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//-------------------------------------------------------------------------
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static const char *g_python_command_instructions = "Enter your Python command(s). Type 'DONE' to end.\n"
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"You must define a Python function with this signature:\n"
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"def my_command_impl(debugger, args, stream, dict):";
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class CommandObjectCommandsAlias : public CommandObject
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{
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class PythonAliasReader : public InputReaderEZ
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{
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private:
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CommandInterpreter& m_interpreter;
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std::string m_cmd_name;
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StringList m_user_input;
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DISALLOW_COPY_AND_ASSIGN (PythonAliasReader);
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public:
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PythonAliasReader(Debugger& debugger,
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CommandInterpreter& interpreter,
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std::string cmd_name) :
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InputReaderEZ(debugger),
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m_interpreter(interpreter),
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m_cmd_name(cmd_name),
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m_user_input()
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{}
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virtual
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~PythonAliasReader()
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{
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}
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virtual void ActivateHandler(HandlerData& data)
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{
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StreamSP out_stream = data.GetOutStream();
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bool batch_mode = data.GetBatchMode();
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if (!batch_mode)
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{
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out_stream->Printf ("%s\n", g_python_command_instructions);
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if (data.reader.GetPrompt())
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out_stream->Printf ("%s", data.reader.GetPrompt());
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out_stream->Flush();
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}
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}
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virtual void ReactivateHandler(HandlerData& data)
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{
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StreamSP out_stream = data.GetOutStream();
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bool batch_mode = data.GetBatchMode();
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if (data.reader.GetPrompt() && !batch_mode)
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{
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out_stream->Printf ("%s", data.reader.GetPrompt());
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out_stream->Flush();
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}
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}
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virtual void GotTokenHandler(HandlerData& data)
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{
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StreamSP out_stream = data.GetOutStream();
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bool batch_mode = data.GetBatchMode();
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if (data.bytes && data.bytes_len)
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{
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m_user_input.AppendString(data.bytes, data.bytes_len);
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}
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if (!data.reader.IsDone() && data.reader.GetPrompt() && !batch_mode)
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{
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out_stream->Printf ("%s", data.reader.GetPrompt());
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out_stream->Flush();
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}
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}
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virtual void InterruptHandler(HandlerData& data)
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{
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StreamSP out_stream = data.GetOutStream();
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bool batch_mode = data.GetBatchMode();
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data.reader.SetIsDone (true);
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if (!batch_mode)
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{
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out_stream->Printf ("Warning: No command attached to breakpoint.\n");
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out_stream->Flush();
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}
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}
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virtual void EOFHandler(HandlerData& data)
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{
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data.reader.SetIsDone (true);
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}
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virtual void DoneHandler(HandlerData& data)
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{
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StreamSP out_stream = data.GetOutStream();
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ScriptInterpreter *interpreter = data.reader.GetDebugger().GetCommandInterpreter().GetScriptInterpreter();
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if (!interpreter)
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{
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out_stream->Printf ("Internal error #1: no script attached.\n");
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out_stream->Flush();
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return;
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}
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StringList funct_name_sl;
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if (!interpreter->GenerateScriptAliasFunction (m_user_input,
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funct_name_sl))
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{
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out_stream->Printf ("Internal error #2: no script attached.\n");
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out_stream->Flush();
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return;
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}
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if (funct_name_sl.GetSize() == 0)
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{
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out_stream->Printf ("Internal error #3: no script attached.\n");
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out_stream->Flush();
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return;
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}
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const char *funct_name = funct_name_sl.GetStringAtIndex(0);
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if (!funct_name || !funct_name[0])
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{
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out_stream->Printf ("Internal error #4: no script attached.\n");
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out_stream->Flush();
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return;
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}
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// everything should be fine now, let's add this alias
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CommandObjectSP command_obj_sp(new CommandObjectPythonFunction(m_interpreter,
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m_cmd_name,
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funct_name));
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m_interpreter.AddAlias(m_cmd_name.c_str(), command_obj_sp);
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}
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};
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public:
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CommandObjectCommandsAlias (CommandInterpreter &interpreter) :
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CommandObject (interpreter,
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"command alias",
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"Allow users to define their own debugger command abbreviations.",
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NULL)
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{
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SetHelpLong(
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"'alias' allows the user to create a short-cut or abbreviation for long \n\
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commands, multi-word commands, and commands that take particular options. \n\
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Below are some simple examples of how one might use the 'alias' command: \n\
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\n 'commands alias sc script' // Creates the abbreviation 'sc' for the 'script' \n\
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// command. \n\
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'commands alias bp breakpoint' // Creates the abbreviation 'bp' for the 'breakpoint' \n\
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// command. Since breakpoint commands are two-word \n\
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// commands, the user will still need to enter the \n\
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// second word after 'bp', e.g. 'bp enable' or \n\
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// 'bp delete'. \n\
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'commands alias bpl breakpoint list' // Creates the abbreviation 'bpl' for the \n\
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// two-word command 'breakpoint list'. \n\
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\nAn alias can include some options for the command, with the values either \n\
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filled in at the time the alias is created, or specified as positional \n\
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arguments, to be filled in when the alias is invoked. The following example \n\
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shows how to create aliases with options: \n\
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\n\
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'commands alias bfl breakpoint set -f %1 -l %2' \n\
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\nThis creates the abbreviation 'bfl' (for break-file-line), with the -f and -l \n\
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options already part of the alias. So if the user wants to set a breakpoint \n\
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by file and line without explicitly having to use the -f and -l options, the \n\
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user can now use 'bfl' instead. The '%1' and '%2' are positional placeholders \n\
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for the actual arguments that will be passed when the alias command is used. \n\
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The number in the placeholder refers to the position/order the actual value \n\
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occupies when the alias is used. So all the occurrences of '%1' in the alias \n\
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will be replaced with the first argument, all the occurrences of '%2' in the \n\
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alias will be replaced with the second argument, and so on. This also allows \n\
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actual arguments to be used multiple times within an alias (see 'process \n\
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launch' example below). So in the 'bfl' case, the actual file value will be \n\
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filled in with the first argument following 'bfl' and the actual line number \n\
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value will be filled in with the second argument. The user would use this \n\
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alias as follows: \n\
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\n (lldb) commands alias bfl breakpoint set -f %1 -l %2 \n\
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<... some time later ...> \n\
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(lldb) bfl my-file.c 137 \n\
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\nThis would be the same as if the user had entered \n\
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'breakpoint set -f my-file.c -l 137'. \n\
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\nAnother example: \n\
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\n (lldb) commands alias pltty process launch -s -o %1 -e %1 \n\
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(lldb) pltty /dev/tty0 \n\
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// becomes 'process launch -s -o /dev/tty0 -e /dev/tty0' \n\
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\nIf the user always wanted to pass the same value to a particular option, the \n\
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alias could be defined with that value directly in the alias as a constant, \n\
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rather than using a positional placeholder: \n\
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\n commands alias bl3 breakpoint set -f %1 -l 3 // Always sets a breakpoint on line \n\
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// 3 of whatever file is indicated. \n");
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CommandArgumentEntry arg1;
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CommandArgumentEntry arg2;
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CommandArgumentEntry arg3;
|
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CommandArgumentData alias_arg;
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CommandArgumentData cmd_arg;
|
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CommandArgumentData options_arg;
|
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// Define the first (and only) variant of this arg.
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alias_arg.arg_type = eArgTypeAliasName;
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alias_arg.arg_repetition = eArgRepeatPlain;
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// There is only one variant this argument could be; put it into the argument entry.
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arg1.push_back (alias_arg);
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// Define the first (and only) variant of this arg.
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cmd_arg.arg_type = eArgTypeCommandName;
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cmd_arg.arg_repetition = eArgRepeatPlain;
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// There is only one variant this argument could be; put it into the argument entry.
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arg2.push_back (cmd_arg);
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// Define the first (and only) variant of this arg.
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options_arg.arg_type = eArgTypeAliasOptions;
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options_arg.arg_repetition = eArgRepeatOptional;
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// There is only one variant this argument could be; put it into the argument entry.
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arg3.push_back (options_arg);
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|
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// Push the data for the first argument into the m_arguments vector.
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m_arguments.push_back (arg1);
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m_arguments.push_back (arg2);
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m_arguments.push_back (arg3);
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}
|
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|
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~CommandObjectCommandsAlias ()
|
|
{
|
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}
|
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|
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bool
|
|
WantsRawCommandString ()
|
|
{
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
ExecuteRawCommandString (const char *raw_command_line, CommandReturnObject &result)
|
|
{
|
|
Args args (raw_command_line);
|
|
std::string raw_command_string (raw_command_line);
|
|
|
|
size_t argc = args.GetArgumentCount();
|
|
|
|
if (argc < 2)
|
|
{
|
|
result.AppendError ("'alias' requires at least two arguments");
|
|
result.SetStatus (eReturnStatusFailed);
|
|
return false;
|
|
}
|
|
|
|
// Get the alias command.
|
|
|
|
const std::string alias_command = args.GetArgumentAtIndex (0);
|
|
|
|
if (
|
|
(strcmp("--python",alias_command.c_str()) == 0) ||
|
|
(strcmp("-P",alias_command.c_str()) == 0)
|
|
)
|
|
{
|
|
|
|
if (argc < 3)
|
|
{
|
|
// this is a definition of the form
|
|
// command alias --python foo_cmd
|
|
// and the user will type foo_cmd_impl by hand
|
|
std::string cmd_name = args.GetArgumentAtIndex(1);
|
|
// Verify that the command is alias-able.
|
|
if (m_interpreter.CommandExists (cmd_name.c_str()))
|
|
{
|
|
result.AppendErrorWithFormat ("'%s' is a permanent debugger command and cannot be redefined.\n",
|
|
cmd_name.c_str());
|
|
result.SetStatus (eReturnStatusFailed);
|
|
return false;
|
|
}
|
|
if (m_interpreter.AliasExists (cmd_name.c_str())
|
|
|| m_interpreter.UserCommandExists (cmd_name.c_str()))
|
|
{
|
|
result.AppendWarningWithFormat ("Overwriting existing definition for '%s'.\n",
|
|
cmd_name.c_str());
|
|
}
|
|
|
|
|
|
InputReaderSP reader_sp (new PythonAliasReader (m_interpreter.GetDebugger(),
|
|
m_interpreter,
|
|
cmd_name));
|
|
|
|
if (reader_sp)
|
|
{
|
|
|
|
InputReaderEZ::InitializationParameters ipr;
|
|
|
|
Error err (reader_sp->Initialize (ipr.SetBaton(NULL).SetPrompt(" ")));
|
|
if (err.Success())
|
|
{
|
|
m_interpreter.GetDebugger().PushInputReader (reader_sp);
|
|
result.SetStatus (eReturnStatusSuccessFinishNoResult);
|
|
}
|
|
else
|
|
{
|
|
result.AppendError (err.AsCString());
|
|
result.SetStatus (eReturnStatusFailed);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
result.AppendError("out of memory");
|
|
result.SetStatus (eReturnStatusFailed);
|
|
}
|
|
|
|
result.SetStatus (eReturnStatusSuccessFinishNoResult);
|
|
return result.Succeeded();
|
|
}
|
|
else
|
|
{
|
|
// this is a definition of the form
|
|
// command alias --python foo_cmd funct_impl_foo
|
|
std::string cmd_name = args.GetArgumentAtIndex(1);
|
|
std::string funct_name = args.GetArgumentAtIndex(2);
|
|
|
|
// Verify that the command is alias-able.
|
|
if (m_interpreter.CommandExists (cmd_name.c_str()))
|
|
{
|
|
result.AppendErrorWithFormat ("'%s' is a permanent debugger command and cannot be redefined.\n",
|
|
cmd_name.c_str());
|
|
result.SetStatus (eReturnStatusFailed);
|
|
return false;
|
|
}
|
|
|
|
CommandObjectSP command_obj_sp(new CommandObjectPythonFunction(m_interpreter,
|
|
cmd_name,
|
|
funct_name));
|
|
|
|
if (m_interpreter.AliasExists (cmd_name.c_str())
|
|
|| m_interpreter.UserCommandExists (cmd_name.c_str()))
|
|
{
|
|
result.AppendWarningWithFormat ("Overwriting existing definition for '%s'.\n",
|
|
cmd_name.c_str());
|
|
}
|
|
|
|
m_interpreter.AddAlias(cmd_name.c_str(), command_obj_sp);
|
|
|
|
result.SetStatus (eReturnStatusSuccessFinishNoResult);
|
|
return result.Succeeded();
|
|
}
|
|
}
|
|
|
|
// Strip the new alias name off 'raw_command_string' (leave it on args, which gets passed to 'Execute', which
|
|
// does the stripping itself.
|
|
size_t pos = raw_command_string.find (alias_command);
|
|
if (pos == 0)
|
|
{
|
|
raw_command_string = raw_command_string.substr (alias_command.size());
|
|
pos = raw_command_string.find_first_not_of (' ');
|
|
if ((pos != std::string::npos) && (pos > 0))
|
|
raw_command_string = raw_command_string.substr (pos);
|
|
}
|
|
else
|
|
{
|
|
result.AppendError ("Error parsing command string. No alias created.");
|
|
result.SetStatus (eReturnStatusFailed);
|
|
return false;
|
|
}
|
|
|
|
|
|
// Verify that the command is alias-able.
|
|
if (m_interpreter.CommandExists (alias_command.c_str()))
|
|
{
|
|
result.AppendErrorWithFormat ("'%s' is a permanent debugger command and cannot be redefined.\n",
|
|
alias_command.c_str());
|
|
result.SetStatus (eReturnStatusFailed);
|
|
return false;
|
|
}
|
|
|
|
// Get CommandObject that is being aliased. The command name is read from the front of raw_command_string.
|
|
// raw_command_string is returned with the name of the command object stripped off the front.
|
|
CommandObject *cmd_obj = m_interpreter.GetCommandObjectForCommand (raw_command_string);
|
|
|
|
if (!cmd_obj)
|
|
{
|
|
result.AppendErrorWithFormat ("Invalid command given to 'alias'. '%s' does not begin with a valid command."
|
|
" No alias created.", raw_command_string.c_str());
|
|
result.SetStatus (eReturnStatusFailed);
|
|
return false;
|
|
}
|
|
else if (!cmd_obj->WantsRawCommandString ())
|
|
{
|
|
// Note that args was initialized with the original command, and has not been updated to this point.
|
|
// Therefore can we pass it to the version of Execute that does not need/expect raw input in the alias.
|
|
return Execute (args, result);
|
|
}
|
|
else
|
|
{
|
|
// Verify & handle any options/arguments passed to the alias command
|
|
|
|
OptionArgVectorSP option_arg_vector_sp = OptionArgVectorSP (new OptionArgVector);
|
|
OptionArgVector *option_arg_vector = option_arg_vector_sp.get();
|
|
|
|
CommandObjectSP cmd_obj_sp = m_interpreter.GetCommandSPExact (cmd_obj->GetCommandName(), false);
|
|
|
|
if (!m_interpreter.ProcessAliasOptionsArgs (cmd_obj_sp, raw_command_string.c_str(), option_arg_vector_sp))
|
|
{
|
|
result.AppendError ("Unable to create requested alias.\n");
|
|
result.SetStatus (eReturnStatusFailed);
|
|
return false;
|
|
}
|
|
|
|
// Create the alias
|
|
if (m_interpreter.AliasExists (alias_command.c_str())
|
|
|| m_interpreter.UserCommandExists (alias_command.c_str()))
|
|
{
|
|
OptionArgVectorSP temp_option_arg_sp (m_interpreter.GetAliasOptions (alias_command.c_str()));
|
|
if (temp_option_arg_sp.get())
|
|
{
|
|
if (option_arg_vector->size() == 0)
|
|
m_interpreter.RemoveAliasOptions (alias_command.c_str());
|
|
}
|
|
result.AppendWarningWithFormat ("Overwriting existing definition for '%s'.\n",
|
|
alias_command.c_str());
|
|
}
|
|
|
|
if (cmd_obj_sp)
|
|
{
|
|
m_interpreter.AddAlias (alias_command.c_str(), cmd_obj_sp);
|
|
if (option_arg_vector->size() > 0)
|
|
m_interpreter.AddOrReplaceAliasOptions (alias_command.c_str(), option_arg_vector_sp);
|
|
result.SetStatus (eReturnStatusSuccessFinishNoResult);
|
|
}
|
|
else
|
|
{
|
|
result.AppendError ("Unable to create requested alias.\n");
|
|
result.SetStatus (eReturnStatusFailed);
|
|
}
|
|
}
|
|
return result.Succeeded();
|
|
}
|
|
|
|
bool
|
|
Execute
|
|
(
|
|
Args& args,
|
|
CommandReturnObject &result
|
|
)
|
|
{
|
|
size_t argc = args.GetArgumentCount();
|
|
|
|
if (argc < 2)
|
|
{
|
|
result.AppendError ("'alias' requires at least two arguments");
|
|
result.SetStatus (eReturnStatusFailed);
|
|
return false;
|
|
}
|
|
|
|
const std::string alias_command = args.GetArgumentAtIndex(0);
|
|
const std::string actual_command = args.GetArgumentAtIndex(1);
|
|
|
|
args.Shift(); // Shift the alias command word off the argument vector.
|
|
args.Shift(); // Shift the old command word off the argument vector.
|
|
|
|
// Verify that the command is alias'able, and get the appropriate command object.
|
|
|
|
if (m_interpreter.CommandExists (alias_command.c_str()))
|
|
{
|
|
result.AppendErrorWithFormat ("'%s' is a permanent debugger command and cannot be redefined.\n",
|
|
alias_command.c_str());
|
|
result.SetStatus (eReturnStatusFailed);
|
|
}
|
|
else
|
|
{
|
|
CommandObjectSP command_obj_sp(m_interpreter.GetCommandSPExact (actual_command.c_str(), true));
|
|
CommandObjectSP subcommand_obj_sp;
|
|
bool use_subcommand = false;
|
|
if (command_obj_sp.get())
|
|
{
|
|
CommandObject *cmd_obj = command_obj_sp.get();
|
|
CommandObject *sub_cmd_obj = NULL;
|
|
OptionArgVectorSP option_arg_vector_sp = OptionArgVectorSP (new OptionArgVector);
|
|
OptionArgVector *option_arg_vector = option_arg_vector_sp.get();
|
|
|
|
while (cmd_obj->IsMultiwordObject() && args.GetArgumentCount() > 0)
|
|
{
|
|
if (argc >= 3)
|
|
{
|
|
const std::string sub_command = args.GetArgumentAtIndex(0);
|
|
assert (sub_command.length() != 0);
|
|
subcommand_obj_sp =
|
|
(((CommandObjectMultiword *) cmd_obj)->GetSubcommandSP (sub_command.c_str()));
|
|
if (subcommand_obj_sp.get())
|
|
{
|
|
sub_cmd_obj = subcommand_obj_sp.get();
|
|
use_subcommand = true;
|
|
args.Shift(); // Shift the sub_command word off the argument vector.
|
|
cmd_obj = sub_cmd_obj;
|
|
}
|
|
else
|
|
{
|
|
result.AppendErrorWithFormat("'%s' is not a valid sub-command of '%s'. "
|
|
"Unable to create alias.\n",
|
|
sub_command.c_str(), actual_command.c_str());
|
|
result.SetStatus (eReturnStatusFailed);
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Verify & handle any options/arguments passed to the alias command
|
|
|
|
if (args.GetArgumentCount () > 0)
|
|
{
|
|
CommandObjectSP tmp_sp = m_interpreter.GetCommandSPExact (cmd_obj->GetCommandName(), false);
|
|
if (use_subcommand)
|
|
tmp_sp = m_interpreter.GetCommandSPExact (sub_cmd_obj->GetCommandName(), false);
|
|
|
|
std::string args_string;
|
|
args.GetCommandString (args_string);
|
|
|
|
if (!m_interpreter.ProcessAliasOptionsArgs (tmp_sp, args_string.c_str(), option_arg_vector_sp))
|
|
{
|
|
result.AppendError ("Unable to create requested alias.\n");
|
|
result.SetStatus (eReturnStatusFailed);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Create the alias.
|
|
|
|
if (m_interpreter.AliasExists (alias_command.c_str())
|
|
|| m_interpreter.UserCommandExists (alias_command.c_str()))
|
|
{
|
|
OptionArgVectorSP tmp_option_arg_sp (m_interpreter.GetAliasOptions (alias_command.c_str()));
|
|
if (tmp_option_arg_sp.get())
|
|
{
|
|
if (option_arg_vector->size() == 0)
|
|
m_interpreter.RemoveAliasOptions (alias_command.c_str());
|
|
}
|
|
result.AppendWarningWithFormat ("Overwriting existing definition for '%s'.\n",
|
|
alias_command.c_str());
|
|
}
|
|
|
|
if (use_subcommand)
|
|
m_interpreter.AddAlias (alias_command.c_str(), subcommand_obj_sp);
|
|
else
|
|
m_interpreter.AddAlias (alias_command.c_str(), command_obj_sp);
|
|
if (option_arg_vector->size() > 0)
|
|
m_interpreter.AddOrReplaceAliasOptions (alias_command.c_str(), option_arg_vector_sp);
|
|
result.SetStatus (eReturnStatusSuccessFinishNoResult);
|
|
}
|
|
else
|
|
{
|
|
result.AppendErrorWithFormat ("'%s' is not an existing command.\n", actual_command.c_str());
|
|
result.SetStatus (eReturnStatusFailed);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return result.Succeeded();
|
|
}
|
|
};
|
|
|
|
#pragma mark CommandObjectCommandsUnalias
|
|
//-------------------------------------------------------------------------
|
|
// CommandObjectCommandsUnalias
|
|
//-------------------------------------------------------------------------
|
|
|
|
class CommandObjectCommandsUnalias : public CommandObject
|
|
{
|
|
public:
|
|
CommandObjectCommandsUnalias (CommandInterpreter &interpreter) :
|
|
CommandObject (interpreter,
|
|
"command unalias",
|
|
"Allow the user to remove/delete a user-defined command abbreviation.",
|
|
NULL)
|
|
{
|
|
CommandArgumentEntry arg;
|
|
CommandArgumentData alias_arg;
|
|
|
|
// Define the first (and only) variant of this arg.
|
|
alias_arg.arg_type = eArgTypeAliasName;
|
|
alias_arg.arg_repetition = eArgRepeatPlain;
|
|
|
|
// There is only one variant this argument could be; put it into the argument entry.
|
|
arg.push_back (alias_arg);
|
|
|
|
// Push the data for the first argument into the m_arguments vector.
|
|
m_arguments.push_back (arg);
|
|
}
|
|
|
|
~CommandObjectCommandsUnalias()
|
|
{
|
|
}
|
|
|
|
|
|
bool
|
|
Execute
|
|
(
|
|
Args& args,
|
|
CommandReturnObject &result
|
|
)
|
|
{
|
|
CommandObject::CommandMap::iterator pos;
|
|
CommandObject *cmd_obj;
|
|
|
|
if (args.GetArgumentCount() != 0)
|
|
{
|
|
const char *command_name = args.GetArgumentAtIndex(0);
|
|
cmd_obj = m_interpreter.GetCommandObject(command_name);
|
|
if (cmd_obj)
|
|
{
|
|
if (m_interpreter.CommandExists (command_name))
|
|
{
|
|
result.AppendErrorWithFormat ("'%s' is a permanent debugger command and cannot be removed.\n",
|
|
command_name);
|
|
result.SetStatus (eReturnStatusFailed);
|
|
}
|
|
else
|
|
{
|
|
|
|
if (m_interpreter.RemoveAlias (command_name) == false)
|
|
{
|
|
if (m_interpreter.AliasExists (command_name))
|
|
result.AppendErrorWithFormat ("Error occurred while attempting to unalias '%s'.\n",
|
|
command_name);
|
|
else
|
|
result.AppendErrorWithFormat ("'%s' is not an existing alias.\n", command_name);
|
|
result.SetStatus (eReturnStatusFailed);
|
|
}
|
|
else
|
|
result.SetStatus (eReturnStatusSuccessFinishNoResult);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
result.AppendErrorWithFormat ("'%s' is not a known command.\nTry 'help' to see a "
|
|
"current list of commands.\n",
|
|
command_name);
|
|
result.SetStatus (eReturnStatusFailed);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
result.AppendError ("must call 'unalias' with a valid alias");
|
|
result.SetStatus (eReturnStatusFailed);
|
|
}
|
|
|
|
return result.Succeeded();
|
|
}
|
|
};
|
|
|
|
#pragma mark CommandObjectCommandsAddRegex
|
|
//-------------------------------------------------------------------------
|
|
// CommandObjectCommandsAddRegex
|
|
//-------------------------------------------------------------------------
|
|
|
|
class CommandObjectCommandsAddRegex : public CommandObject
|
|
{
|
|
public:
|
|
CommandObjectCommandsAddRegex (CommandInterpreter &interpreter) :
|
|
CommandObject (interpreter,
|
|
"command regex",
|
|
"Allow the user to create a regular expression command.",
|
|
"command regex <cmd-name> [s/<regex>/<subst>/ ...]"),
|
|
m_options (interpreter)
|
|
{
|
|
SetHelpLong(
|
|
"This command allows the user to create powerful regular expression commands\n"
|
|
"with substitutions. The regular expressions and substitutions are specified\n"
|
|
"using the regular exression substitution format of:\n"
|
|
"\n"
|
|
" s/<regex>/<subst>/\n"
|
|
"\n"
|
|
"<regex> is a regular expression that can use parenthesis to capture regular\n"
|
|
"expression input and substitute the captured matches in the output using %1\n"
|
|
"for the first match, %2 for the second, and so on.\n"
|
|
"\n"
|
|
"The regular expressions can all be specified on the command line if more than\n"
|
|
"one argument is provided. If just the command name is provided on the command\n"
|
|
"line, then the regular expressions and substitutions can be entered on separate\n"
|
|
" lines, followed by an empty line to terminate the command definition.\n"
|
|
"\n"
|
|
"EXAMPLES\n"
|
|
"\n"
|
|
"The following example with define a regular expression command named 'f' that\n"
|
|
"will call 'finish' if there are no arguments, or 'frame select <frame-idx>' if\n"
|
|
"a number follows 'f':\n"
|
|
"(lldb) command regex f s/^$/finish/ 's/([0-9]+)/frame select %1/'\n"
|
|
);
|
|
}
|
|
|
|
~CommandObjectCommandsAddRegex()
|
|
{
|
|
}
|
|
|
|
|
|
bool
|
|
Execute (Args& args, CommandReturnObject &result)
|
|
{
|
|
const size_t argc = args.GetArgumentCount();
|
|
if (argc == 0)
|
|
{
|
|
result.AppendError ("usage: 'commands regex <command-name> [s/<regex1>/<subst1>/ s/<regex2>/<subst2>/ ...]'\n");
|
|
result.SetStatus (eReturnStatusFailed);
|
|
}
|
|
else
|
|
{
|
|
Error error;
|
|
const char *name = args.GetArgumentAtIndex(0);
|
|
m_regex_cmd_ap.reset (new CommandObjectRegexCommand (m_interpreter,
|
|
name,
|
|
m_options.GetHelp (),
|
|
m_options.GetSyntax (),
|
|
10));
|
|
|
|
if (argc == 1)
|
|
{
|
|
InputReaderSP reader_sp (new InputReader(m_interpreter.GetDebugger()));
|
|
if (reader_sp)
|
|
{
|
|
error =reader_sp->Initialize (CommandObjectCommandsAddRegex::InputReaderCallback,
|
|
this, // baton
|
|
eInputReaderGranularityLine, // token size, to pass to callback function
|
|
NULL, // end token
|
|
"> ", // prompt
|
|
true); // echo input
|
|
if (error.Success())
|
|
{
|
|
m_interpreter.GetDebugger().PushInputReader (reader_sp);
|
|
result.SetStatus (eReturnStatusSuccessFinishNoResult);
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (size_t arg_idx = 1; arg_idx < argc; ++arg_idx)
|
|
{
|
|
llvm::StringRef arg_strref (args.GetArgumentAtIndex(arg_idx));
|
|
error = AppendRegexSubstitution (arg_strref);
|
|
if (error.Fail())
|
|
break;
|
|
}
|
|
|
|
if (error.Success())
|
|
{
|
|
AddRegexCommandToInterpreter();
|
|
}
|
|
}
|
|
if (error.Fail())
|
|
{
|
|
result.AppendError (error.AsCString());
|
|
result.SetStatus (eReturnStatusFailed);
|
|
}
|
|
}
|
|
|
|
return result.Succeeded();
|
|
}
|
|
|
|
Error
|
|
AppendRegexSubstitution (const llvm::StringRef ®ex_sed)
|
|
{
|
|
Error error;
|
|
|
|
if (m_regex_cmd_ap.get() == NULL)
|
|
{
|
|
error.SetErrorStringWithFormat("invalid regular expression command object for: '%.*s'",
|
|
(int)regex_sed.size(),
|
|
regex_sed.data());
|
|
return error;
|
|
}
|
|
|
|
size_t regex_sed_size = regex_sed.size();
|
|
|
|
if (regex_sed_size <= 1)
|
|
{
|
|
error.SetErrorStringWithFormat("regular expression substitution string is too short: '%.*s'",
|
|
(int)regex_sed.size(),
|
|
regex_sed.data());
|
|
return error;
|
|
}
|
|
|
|
if (regex_sed[0] != 's')
|
|
{
|
|
error.SetErrorStringWithFormat("regular expression substitution string doesn't start with 's': '%.*s'",
|
|
(int)regex_sed.size(),
|
|
regex_sed.data());
|
|
return error;
|
|
}
|
|
const size_t first_separator_char_pos = 1;
|
|
// use the char that follows 's' as the regex separator character
|
|
// so we can have "s/<regex>/<subst>/" or "s|<regex>|<subst>|"
|
|
const char separator_char = regex_sed[first_separator_char_pos];
|
|
const size_t second_separator_char_pos = regex_sed.find (separator_char, first_separator_char_pos + 1);
|
|
|
|
if (second_separator_char_pos == std::string::npos)
|
|
{
|
|
error.SetErrorStringWithFormat("missing second '%c' separator char after '%.*s'",
|
|
separator_char,
|
|
(int)(regex_sed.size() - first_separator_char_pos - 1),
|
|
regex_sed.data() + (first_separator_char_pos + 1));
|
|
return error;
|
|
}
|
|
|
|
const size_t third_separator_char_pos = regex_sed.find (separator_char, second_separator_char_pos + 1);
|
|
|
|
if (third_separator_char_pos == std::string::npos)
|
|
{
|
|
error.SetErrorStringWithFormat("missing third '%c' separator char after '%.*s'",
|
|
separator_char,
|
|
(int)(regex_sed.size() - second_separator_char_pos - 1),
|
|
regex_sed.data() + (second_separator_char_pos + 1));
|
|
return error;
|
|
}
|
|
|
|
if (third_separator_char_pos != regex_sed_size - 1)
|
|
{
|
|
// Make sure that everything that follows the last regex
|
|
// separator char
|
|
if (regex_sed.find_first_not_of("\t\n\v\f\r ", third_separator_char_pos + 1) != std::string::npos)
|
|
{
|
|
error.SetErrorStringWithFormat("extra data found after the '%.*s' regular expression substitution string: '%.*s'",
|
|
(int)third_separator_char_pos + 1,
|
|
regex_sed.data(),
|
|
(int)(regex_sed.size() - third_separator_char_pos - 1),
|
|
regex_sed.data() + (third_separator_char_pos + 1));
|
|
return error;
|
|
}
|
|
|
|
}
|
|
else if (first_separator_char_pos + 1 == second_separator_char_pos)
|
|
{
|
|
error.SetErrorStringWithFormat("<regex> can't be empty in 's%c<regex>%c<subst>%c' string: '%.*s'",
|
|
separator_char,
|
|
separator_char,
|
|
separator_char,
|
|
(int)regex_sed.size(),
|
|
regex_sed.data());
|
|
return error;
|
|
}
|
|
else if (second_separator_char_pos + 1 == third_separator_char_pos)
|
|
{
|
|
error.SetErrorStringWithFormat("<subst> can't be empty in 's%c<regex>%c<subst>%c' string: '%.*s'",
|
|
separator_char,
|
|
separator_char,
|
|
separator_char,
|
|
(int)regex_sed.size(),
|
|
regex_sed.data());
|
|
return error;
|
|
}
|
|
std::string regex(regex_sed.substr(first_separator_char_pos + 1, second_separator_char_pos - first_separator_char_pos - 1));
|
|
std::string subst(regex_sed.substr(second_separator_char_pos + 1, third_separator_char_pos - second_separator_char_pos - 1));
|
|
m_regex_cmd_ap->AddRegexCommand (regex.c_str(),
|
|
subst.c_str());
|
|
return error;
|
|
}
|
|
|
|
void
|
|
AddRegexCommandToInterpreter()
|
|
{
|
|
if (m_regex_cmd_ap.get())
|
|
{
|
|
if (m_regex_cmd_ap->HasRegexEntries())
|
|
{
|
|
CommandObjectSP cmd_sp (m_regex_cmd_ap.release());
|
|
m_interpreter.AddCommand(cmd_sp->GetCommandName(), cmd_sp, true);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
InputReaderDidCancel()
|
|
{
|
|
m_regex_cmd_ap.reset();
|
|
}
|
|
|
|
static size_t
|
|
InputReaderCallback (void *baton,
|
|
InputReader &reader,
|
|
lldb::InputReaderAction notification,
|
|
const char *bytes,
|
|
size_t bytes_len);
|
|
private:
|
|
std::auto_ptr<CommandObjectRegexCommand> m_regex_cmd_ap;
|
|
|
|
class CommandOptions : public Options
|
|
{
|
|
public:
|
|
|
|
CommandOptions (CommandInterpreter &interpreter) :
|
|
Options (interpreter)
|
|
{
|
|
}
|
|
|
|
virtual
|
|
~CommandOptions (){}
|
|
|
|
virtual Error
|
|
SetOptionValue (uint32_t option_idx, const char *option_arg)
|
|
{
|
|
Error error;
|
|
char short_option = (char) m_getopt_table[option_idx].val;
|
|
|
|
switch (short_option)
|
|
{
|
|
case 'h':
|
|
m_help.assign (option_arg);
|
|
break;
|
|
case 's':
|
|
m_syntax.assign (option_arg);
|
|
break;
|
|
|
|
default:
|
|
error.SetErrorStringWithFormat ("Unrecognized option '%c'.\n", short_option);
|
|
break;
|
|
}
|
|
|
|
return error;
|
|
}
|
|
|
|
void
|
|
OptionParsingStarting ()
|
|
{
|
|
m_help.clear();
|
|
m_syntax.clear();
|
|
}
|
|
|
|
const OptionDefinition*
|
|
GetDefinitions ()
|
|
{
|
|
return g_option_table;
|
|
}
|
|
|
|
// Options table: Required for subclasses of Options.
|
|
|
|
static OptionDefinition g_option_table[];
|
|
|
|
const char *
|
|
GetHelp ()
|
|
{
|
|
if (m_help.empty())
|
|
return NULL;
|
|
return m_help.c_str();
|
|
}
|
|
const char *
|
|
GetSyntax ()
|
|
{
|
|
if (m_syntax.empty())
|
|
return NULL;
|
|
return m_syntax.c_str();
|
|
}
|
|
// Instance variables to hold the values for command options.
|
|
protected:
|
|
std::string m_help;
|
|
std::string m_syntax;
|
|
};
|
|
|
|
CommandOptions m_options;
|
|
|
|
virtual Options *
|
|
GetOptions ()
|
|
{
|
|
return &m_options;
|
|
}
|
|
|
|
};
|
|
|
|
size_t
|
|
CommandObjectCommandsAddRegex::InputReaderCallback (void *baton,
|
|
InputReader &reader,
|
|
lldb::InputReaderAction notification,
|
|
const char *bytes,
|
|
size_t bytes_len)
|
|
{
|
|
CommandObjectCommandsAddRegex *add_regex_cmd = (CommandObjectCommandsAddRegex *) baton;
|
|
bool batch_mode = reader.GetDebugger().GetCommandInterpreter().GetBatchCommandMode();
|
|
|
|
switch (notification)
|
|
{
|
|
case eInputReaderActivate:
|
|
if (!batch_mode)
|
|
{
|
|
StreamSP out_stream = reader.GetDebugger().GetAsyncOutputStream ();
|
|
out_stream->Printf("%s\n", "Enter regular expressions in the form 's/<regex>/<subst>/' and terminate with an empty line:");
|
|
out_stream->Flush();
|
|
}
|
|
break;
|
|
case eInputReaderReactivate:
|
|
break;
|
|
|
|
case eInputReaderDeactivate:
|
|
break;
|
|
|
|
case eInputReaderAsynchronousOutputWritten:
|
|
break;
|
|
|
|
case eInputReaderGotToken:
|
|
while (bytes_len > 0 && (bytes[bytes_len-1] == '\r' || bytes[bytes_len-1] == '\n'))
|
|
--bytes_len;
|
|
if (bytes_len == 0)
|
|
reader.SetIsDone(true);
|
|
else if (bytes)
|
|
{
|
|
llvm::StringRef bytes_strref (bytes, bytes_len);
|
|
Error error (add_regex_cmd->AppendRegexSubstitution (bytes_strref));
|
|
if (error.Fail())
|
|
{
|
|
if (!batch_mode)
|
|
{
|
|
StreamSP out_stream = reader.GetDebugger().GetAsyncOutputStream();
|
|
out_stream->Printf("error: %s\n", error.AsCString());
|
|
out_stream->Flush();
|
|
}
|
|
add_regex_cmd->InputReaderDidCancel ();
|
|
reader.SetIsDone (true);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case eInputReaderInterrupt:
|
|
{
|
|
reader.SetIsDone (true);
|
|
if (!batch_mode)
|
|
{
|
|
StreamSP out_stream = reader.GetDebugger().GetAsyncOutputStream();
|
|
out_stream->PutCString("Regular expression command creations was cancelled.\n");
|
|
out_stream->Flush();
|
|
}
|
|
add_regex_cmd->InputReaderDidCancel ();
|
|
}
|
|
break;
|
|
|
|
case eInputReaderEndOfFile:
|
|
reader.SetIsDone (true);
|
|
break;
|
|
|
|
case eInputReaderDone:
|
|
add_regex_cmd->AddRegexCommandToInterpreter();
|
|
break;
|
|
}
|
|
|
|
return bytes_len;
|
|
}
|
|
|
|
|
|
OptionDefinition
|
|
CommandObjectCommandsAddRegex::CommandOptions::g_option_table[] =
|
|
{
|
|
{ LLDB_OPT_SET_1, false, "help" , 'h', required_argument, NULL, 0, eArgTypeNone, "The help text to display for this command."},
|
|
{ LLDB_OPT_SET_1, false, "syntax", 's', required_argument, NULL, 0, eArgTypeNone, "A syntax string showing the typical usage syntax."},
|
|
{ 0 , false, NULL , 0 , 0 , NULL, 0, eArgTypeNone, NULL }
|
|
};
|
|
|
|
|
|
#pragma mark CommandObjectMultiwordCommands
|
|
|
|
//-------------------------------------------------------------------------
|
|
// CommandObjectMultiwordCommands
|
|
//-------------------------------------------------------------------------
|
|
|
|
CommandObjectMultiwordCommands::CommandObjectMultiwordCommands (CommandInterpreter &interpreter) :
|
|
CommandObjectMultiword (interpreter,
|
|
"command",
|
|
"A set of commands for managing or customizing the debugger commands.",
|
|
"command <subcommand> [<subcommand-options>]")
|
|
{
|
|
LoadSubCommand ("source", CommandObjectSP (new CommandObjectCommandsSource (interpreter)));
|
|
LoadSubCommand ("alias", CommandObjectSP (new CommandObjectCommandsAlias (interpreter)));
|
|
LoadSubCommand ("unalias", CommandObjectSP (new CommandObjectCommandsUnalias (interpreter)));
|
|
LoadSubCommand ("regex", CommandObjectSP (new CommandObjectCommandsAddRegex (interpreter)));
|
|
LoadSubCommand ("history", CommandObjectSP (new CommandObjectCommandsHistory (interpreter)));
|
|
}
|
|
|
|
CommandObjectMultiwordCommands::~CommandObjectMultiwordCommands ()
|
|
{
|
|
}
|
|
|