Mercurial > octave
view libinterp/corefcn/interpreter.cc @ 23694:4a62da62af09
use m_ prefix for member variables in parser
* parse.h, oct-parse.in.yy (class octave_base_parser): Rename all
member variables with "m_" prefix. Change all uses.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Mon, 26 Jun 2017 08:06:05 -0400 |
parents | 5c6cceef132b |
children | 08036a7f3660 |
line wrap: on
line source
/* Copyright (C) 1993-2017 John W. Eaton This file is part of Octave. Octave is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. Octave is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with Octave; see the file COPYING. If not, see <http://www.gnu.org/licenses/>. */ #if defined (HAVE_CONFIG_H) # include "config.h" #endif #include <string> #include <iostream> #include "cmd-edit.h" #include "cmd-hist.h" #include "file-ops.h" #include "file-stat.h" #include "fpucw-wrappers.h" #include "lo-blas-proto.h" #include "lo-error.h" #include "oct-env.h" #include "str-vec.h" #include "signal-wrappers.h" #include "unistd-wrappers.h" #include "builtins.h" #include "defaults.h" #include "Cell.h" #include "call-stack.h" #include "defun.h" #include "display.h" #include "error.h" #include "file-io.h" #include "graphics.h" #include "interpreter-private.h" #include "interpreter.h" #include "load-path.h" #include "load-save.h" #include "octave-link.h" #include "octave.h" #include "oct-hist.h" #include "oct-map.h" #include "oct-mutex.h" #include "ops.h" #include "ovl.h" #include "ov.h" #include "ov-classdef.h" #include "parse.h" #include "pt-eval.h" #include "pt-jump.h" #include "pt-mat.h" #include "pt-stmt.h" #include "sighandlers.h" #include "sysdep.h" #include "unwind-prot.h" #include "utils.h" #include "variables.h" #include "version.h" // TRUE means the quit() call is allowed. bool quit_allowed = true; // TRUE means we are ready to interpret commands, but not everything // is ready for interactive use. bool octave_interpreter_ready = false; // TRUE means we've processed all the init code and we are good to go. bool octave_initialized = false; DEFUN (__version_info__, args, , doc: /* -*- texinfo -*- @deftypefn {} {retval =} __version_info__ (@var{name}, @var{version}, @var{release}, @var{date}) Undocumented internal function. @end deftypefn */) { static octave_map vinfo; int nargin = args.length (); if (nargin != 0 && nargin != 4) print_usage (); octave_value retval; if (nargin == 0) retval = vinfo; else if (nargin == 4) { if (vinfo.nfields () == 0) { vinfo.assign ("Name", args(0)); vinfo.assign ("Version", args(1)); vinfo.assign ("Release", args(2)); vinfo.assign ("Date", args(3)); } else { octave_idx_type n = vinfo.numel () + 1; vinfo.resize (dim_vector (n, 1)); octave_value idx (n); vinfo.assign (idx, "Name", Cell (octave_value (args(0)))); vinfo.assign (idx, "Version", Cell (octave_value (args(1)))); vinfo.assign (idx, "Release", Cell (octave_value (args(2)))); vinfo.assign (idx, "Date", Cell (octave_value (args(3)))); } } return retval; } static void initialize_version_info (void) { octave_value_list args; args(3) = OCTAVE_RELEASE_DATE; args(2) = OCTAVE_RELEASE; args(1) = OCTAVE_VERSION; args(0) = "GNU Octave"; F__version_info__ (args, 0); } OCTAVE_NORETURN static void lo_error_handler (const char *fmt, ...) { va_list args; va_start (args, fmt); verror_with_cfn (fmt, args); va_end (args); octave_throw_execution_exception (); } OCTAVE_NORETURN static void lo_error_with_id_handler (const char *id, const char *fmt, ...) { va_list args; va_start (args, fmt); verror_with_id_cfn (id, fmt, args); va_end (args); octave_throw_execution_exception (); } static void initialize_error_handlers () { set_liboctave_error_handler (lo_error_handler); set_liboctave_error_with_id_handler (lo_error_with_id_handler); set_liboctave_warning_handler (warning); set_liboctave_warning_with_id_handler (warning_with_id); } // What internal options get configured by --traditional. static void maximum_braindamage (void) { FPS1 (octave_value (">> ")); FPS2 (octave_value ("")); FPS4 (octave_value ("")); Fbeep_on_error (octave_value (true)); Fconfirm_recursive_rmdir (octave_value (false)); Fcrash_dumps_octave_core (octave_value (false)); Fdisable_diagonal_matrix (octave_value (true)); Fdisable_permutation_matrix (octave_value (true)); Fdisable_range (octave_value (true)); Ffixed_point_format (octave_value (true)); Fhistory_timestamp_format_string (octave_value ("%%-- %D %I:%M %p --%%")); Fpage_screen_output (octave_value (false)); Fprint_empty_dimensions (octave_value (false)); Fsave_default_options (octave_value ("-mat-binary")); Fstruct_levels_to_print (octave_value (0)); disable_warning ("Octave:abbreviated-property-match"); disable_warning ("Octave:data-file-in-path"); disable_warning ("Octave:function-name-clash"); disable_warning ("Octave:possible-matlab-short-circuit-operator"); } DEFUN (quit, args, , doc: /* -*- texinfo -*- @deftypefn {} {} exit @deftypefnx {} {} exit (@var{status}) @deftypefnx {} {} quit @deftypefnx {} {} quit (@var{status}) Exit the current Octave session. If the optional integer value @var{status} is supplied, pass that value to the operating system as Octave's exit status. The default value is zero. When exiting, Octave will attempt to run the m-file @file{finish.m} if it exists. User commands to save the workspace or clean up temporary files may be placed in that file. Alternatively, another m-file may be scheduled to run using @code{atexit}. @seealso{atexit} @end deftypefn */) { // Confirm OK to shutdown. Note: A dynamic function installation similar // to overriding polymorphism for which the GUI can install its own "quit" // yet call this base "quit" could be nice. No link would be needed here. if (! octave_link::confirm_shutdown ()) return ovl (); if (! quit_allowed) error ("quit: not supported in embedded mode"); int exit_status = 0; if (args.length () > 0) exit_status = args(0).nint_value (); // Instead of simply calling exit, we thrown an exception so that no // matter where the call to quit occurs, we will run the // unwind_protect stack, clear the OCTAVE_LOCAL_BUFFER allocations, // etc. before exiting. throw octave::exit_exception (exit_status); return ovl (); } DEFALIAS (exit, quit); DEFUN (atexit, args, nargout, doc: /* -*- texinfo -*- @deftypefn {} {} atexit (@var{fcn}) @deftypefnx {} {} atexit (@var{fcn}, @var{flag}) Register a function to be called when Octave exits. For example, @example @group function last_words () disp ("Bye bye"); endfunction atexit ("last_words"); @end group @end example @noindent will print the message @qcode{"Bye bye"} when Octave exits. The additional argument @var{flag} will register or unregister @var{fcn} from the list of functions to be called when Octave exits. If @var{flag} is true, the function is registered, and if @var{flag} is false, it is unregistered. For example, after registering the function @code{last_words} above, @example atexit ("last_words", false); @end example @noindent will remove the function from the list and Octave will not call @code{last_words} when it exits. Note that @code{atexit} only removes the first occurrence of a function from the list, so if a function was placed in the list multiple times with @code{atexit}, it must also be removed from the list multiple times. @seealso{quit} @end deftypefn */) { int nargin = args.length (); if (nargin < 1 || nargin > 2) print_usage (); std::string arg = args(0).xstring_value ("atexit: FCN argument must be a string"); bool add_mode = (nargin == 2) ? args(1).xbool_value ("atexit: FLAG argument must be a logical value") : true; octave_value_list retval; if (add_mode) octave::interpreter::add_atexit_function (arg); else { bool found = octave::interpreter::remove_atexit_function (arg); if (nargout > 0) retval = ovl (found); } return retval; } // Execute commands from a file and catch potential exceptions in a consistent // way. This function should be called anywhere we might parse and execute // commands from a file before we have entered the main loop in // toplev.cc. static int safe_source_file (const std::string& file_name, const std::string& context = "", bool verbose = false, bool require_file = true, const std::string& warn_for = "") { try { octave::source_file (file_name, context, verbose, require_file, warn_for); } catch (const octave::interrupt_exception&) { octave::interpreter::recover_from_exception (); return 1; } catch (const octave::execution_exception& e) { std::string stack_trace = e.info (); if (! stack_trace.empty ()) std::cerr << stack_trace; octave::interpreter::recover_from_exception (); return 1; } return 0; } static void execute_pkg_add (const std::string& dir) { std::string file_name = octave::sys::file_ops::concat (dir, "PKG_ADD"); octave::load_path& lp = octave::__get_load_path__ ("execute_pkg_add"); try { lp.execute_pkg_add (dir); } catch (const octave::interrupt_exception&) { octave::interpreter::recover_from_exception (); } catch (const octave::execution_exception&) { octave::interpreter::recover_from_exception (); } } namespace octave { // Create an interpreter object and perform initialization up to the // point of setting reading command history and setting the load // path. interpreter::interpreter (application *app_context) : m_app_context (app_context), m_dynamic_loader (*this), m_load_path (), m_symbol_table (), m_evaluator (*this), m_cdef_manager (*this), m_interactive (false), m_read_site_files (true), m_read_init_files (m_app_context != 0), m_verbose (false), m_inhibit_startup_message (false), m_load_path_initialized (false), m_history_initialized (false), m_initialized (false) { if (instance) throw std::runtime_error ("only one Octave interpreter object may be active"); instance = this; // Matlab uses "C" locale for LC_NUMERIC class regardless of local setting setlocale (LC_NUMERIC, "C"); setlocale (LC_TIME, "C"); octave::sys::env::putenv ("LC_NUMERIC", "C"); octave::sys::env::putenv ("LC_TIME", "C"); // Initialize the default floating point unit control state. octave_set_default_fpucw (); octave::thread::init (); set_default_prompts (); // Initialize default warning state before --traditional option // that may reset them. initialize_default_warning_state (); octave_ieee_init (); octave_prepare_hdf5 (); // The idea here is to force xerbla to be referenced so that we will link to // our own version instead of the one provided by the BLAS library. But // octave::numeric_limits<double>::NaN () should never be -1, so we // should never actually call xerbla. FIXME (again!): If this // becomes a constant expression the test might be optimized away and // then the reference to the function might also disappear. if (octave::numeric_limits<double>::NaN () == -1) F77_FUNC (xerbla, XERBLA) ("octave", 13 F77_CHAR_ARG_LEN (6)); initialize_error_handlers (); if (m_app_context) octave::install_signal_handlers (); else quit_allowed = false; initialize_file_io (); install_types (); install_ops (); install_builtins (); m_cdef_manager.initialize (); bool line_editing = false; bool traditional = false; if (m_app_context) { // Embedded interpeters don't execute command line options. const cmdline_options& options = m_app_context->options (); // Make all command-line arguments available to startup files, // including PKG_ADD files. string_vector args = options.all_args (); m_app_context->intern_argv (args); intern_nargin (args.numel () - 1); bool is_octave_program = m_app_context->is_octave_program (); std::list<std::string> command_line_path = options.command_line_path (); for (const auto& pth : command_line_path) m_load_path.set_command_line_path (pth); std::string exec_path = options.exec_path (); if (! exec_path.empty ()) set_exec_path (exec_path); std::string image_path = options.image_path (); if (! image_path.empty ()) set_image_path (image_path); if (options.no_window_system ()) display_info::no_window_system (); // Is input coming from a terminal? If so, we are probably // interactive. // If stdin is not a tty, then we are reading commands from a // pipe or a redirected file. bool stdin_is_tty = octave_isatty_wrapper (fileno (stdin)); m_interactive = (! is_octave_program && stdin_is_tty && octave_isatty_wrapper (fileno (stdout))); // Check if the user forced an interactive session. if (options.forced_interactive ()) m_interactive = true; line_editing = options.line_editing (); if ((! m_interactive || options.forced_interactive ()) && ! options.forced_line_editing ()) line_editing = false; traditional = options.traditional (); } // Force default line editor if we don't want readline editing. if (line_editing) initialize_command_input (); else octave::command_editor::force_default_editor (); // These can come after command line args since none of them set any // defaults that might be changed by command line options. initialize_version_info (); // This should be done before initializing the load path because // some PKG_ADD files might need --traditional behavior. if (traditional) maximum_braindamage (); octave_interpreter_ready = true; } interpreter *interpreter::instance = nullptr; interpreter::~interpreter (void) { cleanup (); } void interpreter::intern_nargin (octave_idx_type nargs) { // FIXME: should this explicitly be top_scope? symbol_table::scope *scope = m_symbol_table.current_scope (); if (scope) { scope->assign (".nargin.", nargs); scope->mark_hidden (".nargin."); } } // Read the history file unless a command-line option inhibits that. void interpreter::initialize_history (bool read_history_file) { if (! m_history_initialized) { // Allow command-line option to override. if (m_app_context) { const cmdline_options& options = m_app_context->options (); read_history_file = options.read_history_file (); } ::initialize_history (read_history_file); if (! m_app_context) octave::command_history::ignore_entries (); m_history_initialized = true; } } // Set the initial path to the system default unless command-line // option says to leave it empty. void interpreter::initialize_load_path (bool set_initial_path) { if (! m_load_path_initialized) { // Allow command-line option to override. if (m_app_context) { const cmdline_options& options = m_app_context->options (); set_initial_path = options.set_initial_path (); } // Temporarily set the execute_pkg_add function to one that // catches exceptions. This is better than wrapping // load_path::initialize in a try-catch block because it will // not stop executing PKG_ADD files at the first exception. // It's also better than changing the default execute_pkg_add // function to use safe_source file because that will normally // be evaluated from the normal intepreter loop where exceptions // are already handled. octave::unwind_protect frame; frame.add_method (m_load_path, &load_path::set_add_hook, m_load_path.get_add_hook ()); m_load_path.set_add_hook (execute_pkg_add); m_load_path.initialize (set_initial_path); m_load_path_initialized = true; } } // This may be called separately from execute int interpreter::initialize (void) { if (m_initialized) return 0; display_startup_message (); // Wait to read the history file until the interpreter reads input // files and begins evaluating commands. initialize_history (); // Initializing the load path may execute PKG_ADD files, so can't be // done until the interpreter is ready to execute commands. // Deferring it to the execute step also allows the path to be // initialized between creating and execute the interpreter, for // example, to set a custom path for an embedded interpreter. initialize_load_path (); // We ignore errors in startup files. execute_startup_files (); int exit_status = 0; if (m_app_context) { const cmdline_options& options = m_app_context->options (); if (m_app_context->have_eval_option_code ()) { int status = execute_eval_option_code (); if (status ) exit_status = status; if (! options.persist ()) return exit_status; } // If there is an extra argument, see if it names a file to // read. Additional arguments are taken as command line options // for the script. if (m_app_context->have_script_file ()) { int status = execute_command_line_file (); if (status) exit_status = status; if (! options.persist ()) return exit_status; } // Force input to be echoed if not really interactive, // but the user has forced interactive behavior. if (options.forced_interactive ()) { octave::command_editor::blink_matching_paren (false); // FIXME: is this the right thing to do? Fecho_executing_commands (octave_value (ECHO_CMD_LINE)); } } // Avoid counting commands executed from startup or script files. octave::command_editor::reset_current_command_number (1); m_initialized = true; return exit_status; } int interpreter::execute (void) { try { int status = initialize (); if (! m_initialized) return status; return main_loop (); } catch (const octave::exit_exception& ex) { return ex.exit_status (); } } void interpreter::display_startup_message (void) const { bool inhibit_startup_message = false; if (m_app_context) { const cmdline_options& options = m_app_context->options (); inhibit_startup_message = options.inhibit_startup_message (); } if (m_interactive && ! inhibit_startup_message) std::cout << octave_startup_message () << "\n" << std::endl; } // Initialize by reading startup files. Return non-zero if an exception // occurs when reading any of them, but don't exit early because of an // exception. int interpreter::execute_startup_files (void) const { bool read_site_files = m_read_site_files; bool read_init_files = m_read_init_files; bool verbose = m_verbose; bool inhibit_startup_message = m_inhibit_startup_message; if (m_app_context) { const cmdline_options& options = m_app_context->options (); read_site_files = options.read_site_files (); read_init_files = options.read_init_files (); verbose = options.verbose_flag (); inhibit_startup_message = options.inhibit_startup_message (); } verbose = (verbose && ! inhibit_startup_message); bool require_file = false; std::string context; int exit_status = 0; if (read_site_files) { // Execute commands from the site-wide configuration file. // First from the file $(prefix)/lib/octave/site/m/octaverc // (if it exists), then from the file // $(prefix)/share/octave/$(version)/m/octaverc (if it exists). int status = safe_source_file (Vlocal_site_defaults_file, context, verbose, require_file); if (status) exit_status = status; status = safe_source_file (Vsite_defaults_file, context, verbose, require_file); if (status) exit_status = status; } if (read_init_files) { // Try to execute commands from $HOME/$OCTAVE_INITFILE and // $OCTAVE_INITFILE. If $OCTAVE_INITFILE is not set, // .octaverc is assumed. bool home_rc_already_executed = false; std::string initfile = octave::sys::env::getenv ("OCTAVE_INITFILE"); if (initfile.empty ()) initfile = ".octaverc"; std::string home_dir = octave::sys::env::get_home_directory (); std::string home_rc = octave::sys::env::make_absolute (initfile, home_dir); std::string local_rc; if (! home_rc.empty ()) { int status = safe_source_file (home_rc, context, verbose, require_file); if (status) exit_status = status; // Names alone are not enough. octave::sys::file_stat fs_home_rc (home_rc); if (fs_home_rc) { // We want to check for curr_dir after executing home_rc // because doing that may change the working directory. local_rc = octave::sys::env::make_absolute (initfile); home_rc_already_executed = same_file (home_rc, local_rc); } } if (! home_rc_already_executed) { if (local_rc.empty ()) local_rc = octave::sys::env::make_absolute (initfile); int status = safe_source_file (local_rc, context, verbose, require_file); if (status) exit_status = status; } } if (m_interactive && verbose) std::cout << std::endl; return exit_status; } // Execute any code specified with --eval 'CODE' int interpreter::execute_eval_option_code (void) { const cmdline_options& options = m_app_context->options (); std::string code_to_eval = options.code_to_eval (); octave::unwind_protect frame; octave_save_signal_mask (); octave::can_interrupt = true; octave_signal_hook = octave::signal_handler; octave_interrupt_hook = 0; octave_bad_alloc_hook = 0; octave::catch_interrupts (); octave_initialized = true; frame.add_method (this, &interpreter::interactive, m_interactive); m_interactive = false; int parse_status = 0; try { eval_string (code_to_eval, false, parse_status, 0); } catch (const octave::interrupt_exception&) { recover_from_exception (); return 1; } catch (const octave::execution_exception&) { recover_from_exception (); return 1; } return parse_status; } int interpreter::execute_command_line_file (void) { const cmdline_options& options = m_app_context->options (); octave::unwind_protect frame; octave_save_signal_mask (); octave::can_interrupt = true; octave_signal_hook = octave::signal_handler; octave_interrupt_hook = 0; octave_bad_alloc_hook = 0; octave::catch_interrupts (); octave_initialized = true; frame.add_method (this, &interpreter::interactive, m_interactive); string_vector args = options.all_args (); frame.add_method (m_app_context, &application::intern_argv, args); frame.add_method (this, &interpreter::intern_nargin, args.numel () - 1); frame.add_method (m_app_context, &application::program_invocation_name, application::program_invocation_name ()); frame.add_method (m_app_context, &application::program_name, application::program_name ()); m_interactive = false; // If we are running an executable script (#! /bin/octave) then // we should only see the args passed to the script. string_vector script_args = options.remaining_args (); m_app_context->intern_argv (script_args); intern_nargin (script_args.numel () - 1); std::string fname = script_args[0]; m_app_context->set_program_names (fname); std::string context; bool verbose = false; bool require_file = true; return safe_source_file (fname, context, verbose, require_file, "octave"); } int interpreter::main_loop (void) { if (! m_app_context) return 0; octave_save_signal_mask (); octave::can_interrupt = true; octave_signal_hook = octave::signal_handler; octave_interrupt_hook = 0; octave_bad_alloc_hook = 0; octave::catch_interrupts (); octave_initialized = true; // The big loop. octave::lexer *lxr = (octave::application::interactive () ? new octave::lexer () : new octave::lexer (stdin)); octave::parser parser (*lxr); int retval = 0; do { try { reset_error_handler (); parser.reset (); if (m_symbol_table.at_top_level ()) octave::tree_evaluator::reset_debug_state (); retval = parser.run (); if (retval == 0) { if (parser.m_stmt_list) { parser.m_stmt_list->accept (m_evaluator); octave_quit (); if (! octave::application::interactive ()) { bool quit = (tree_return_command::returning || tree_break_command::breaking); if (tree_return_command::returning) tree_return_command::returning = 0; if (tree_break_command::breaking) tree_break_command::breaking--; if (quit) break; } if (octave_completion_matches_called) octave_completion_matches_called = false; else octave::command_editor::increment_current_command_number (); } else if (parser.m_lexer.end_of_input) { retval = EOF; break; } } } catch (const octave::interrupt_exception&) { recover_from_exception (); // Required newline when the user does Ctrl+C at the prompt. if (octave::application::interactive ()) octave_stdout << "\n"; } catch (const octave::index_exception& e) { recover_from_exception (); std::cerr << "error: unhandled index exception: " << e.message () << " -- trying to return to prompt" << std::endl; } catch (const octave::execution_exception& e) { std::string stack_trace = e.info (); if (! stack_trace.empty ()) std::cerr << stack_trace; if (octave::application::interactive ()) recover_from_exception (); else { // We should exit with a nonzero status. retval = 1; break; } } catch (const std::bad_alloc&) { recover_from_exception (); std::cerr << "error: out of memory -- trying to return to prompt" << std::endl; } #if defined (DBSTOP_NANINF) if (Vdebug_on_naninf) { if (setjump (naninf_jump) != 0) debug_or_throw_exception (true); // true = stack trace } #endif } while (retval == 0); if (retval == EOF) { if (octave::application::interactive ()) octave_stdout << "\n"; retval = 0; } return retval; } // Call a function with exceptions handled to avoid problems with // errors while shutting down. #define OCTAVE_IGNORE_EXCEPTION(E) \ catch (E) \ { \ recover_from_exception (); \ \ std::cerr << "error: ignoring " #E " while preparing to exit" \ << std::endl; \ } #define OCTAVE_SAFE_CALL(F, ARGS) \ do \ { \ try \ { \ octave::unwind_protect frame; \ \ frame.protect_var (Vdebug_on_error); \ frame.protect_var (Vdebug_on_warning); \ \ Vdebug_on_error = false; \ Vdebug_on_warning = false; \ \ F ARGS; \ } \ OCTAVE_IGNORE_EXCEPTION (const octave::exit_exception&) \ OCTAVE_IGNORE_EXCEPTION (const octave::interrupt_exception&) \ OCTAVE_IGNORE_EXCEPTION (const octave::execution_exception&) \ OCTAVE_IGNORE_EXCEPTION (const std::bad_alloc&) \ } \ while (0) void interpreter::cleanup (void) { // If we are attached to a GUI, process pending events and // disconnect the link. octave_link::process_events (true); octave_link::disconnect_link (); OCTAVE_SAFE_CALL (remove_input_event_hook_functions, ()); while (! atexit_functions.empty ()) { std::string fcn = atexit_functions.front (); atexit_functions.pop_front (); OCTAVE_SAFE_CALL (reset_error_handler, ()); OCTAVE_SAFE_CALL (octave::feval, (fcn, octave_value_list (), 0)); OCTAVE_SAFE_CALL (octave::flush_stdout, ()); } // Do this explicitly so that destructors for mex file objects // are called, so that functions registered with mexAtExit are // called. OCTAVE_SAFE_CALL (clear_mex_functions, ()); OCTAVE_SAFE_CALL (octave::command_editor::restore_terminal_state, ()); OCTAVE_SAFE_CALL (octave_history_write_timestamp, ()); if (! octave::command_history::ignoring_entries ()) OCTAVE_SAFE_CALL (octave::command_history::clean_up_and_save, ()); OCTAVE_SAFE_CALL (gh_manager::close_all_figures, ()); OCTAVE_SAFE_CALL (gtk_manager::unload_all_toolkits, ()); OCTAVE_SAFE_CALL (close_files, ()); OCTAVE_SAFE_CALL (cleanup_tmp_files, ()); // FIXME: May still need something like this to ensure that // destructors for class objects will run properly. Should that be // done earlier? Before or after atexit functions are executed? m_symbol_table.cleanup (); OCTAVE_SAFE_CALL (sysdep_cleanup, ()); OCTAVE_SAFE_CALL (octave_finalize_hdf5, ()); OCTAVE_SAFE_CALL (octave::flush_stdout, ()); // Don't call singleton_cleanup_list::cleanup until we have the // problems with registering/unregistering types worked out. For // example, uncomment the following line, then use the make_int // function from the examples directory to create an integer // object and then exit Octave. Octave should crash with a // segfault when cleaning up the typinfo singleton. We need some // way to force new octave_value_X types that are created in // .oct files to be unregistered when the .oct file shared library // is unloaded. // // OCTAVE_SAFE_CALL (singleton_cleanup_list::cleanup, ()); OCTAVE_SAFE_CALL (octave::chunk_buffer::clear, ()); } tree_evaluator& interpreter::get_evaluator (void) { return m_evaluator; } symbol_table::scope * interpreter::get_current_scope (void) { return m_symbol_table.current_scope (); } symbol_table::scope * interpreter::require_current_scope (const std::string& who) { symbol_table::scope *scope = get_current_scope (); if (! scope) error ("%s: symbol table scope missing", who.c_str ()); return scope; } call_stack& interpreter::get_call_stack (void) { return m_evaluator.get_call_stack (); } void interpreter::recover_from_exception (void) { octave::can_interrupt = true; octave_interrupt_immediately = 0; octave_interrupt_state = 0; octave_signal_caught = 0; octave_exception_state = octave_no_exception; octave_restore_signal_mask (); octave::catch_interrupts (); } // Functions to call when the interpreter exits. std::list<std::string> interpreter::atexit_functions; void interpreter::add_atexit_function (const std::string& fname) { atexit_functions.push_front (fname); } bool interpreter::remove_atexit_function (const std::string& fname) { bool found = false; for (auto it = atexit_functions.begin (); it != atexit_functions.end (); it++) { if (*it == fname) { atexit_functions.erase (it); found = true; break; } } return found; } }