octave: liboctave/util/action-container.h annotate

annotate liboctave/util/action-container.h @ 29251:30a5e691dd9f

allow unwind_action functions to be empty and set after object creation * unwind-prot.h (unwind_action::unwind_action): New overload that allows unwind_action to be created without a valid function. (unwind_action::set): New functions. Allow action to be changed or set to an invalid function. (unwind_action::run): New function. Skip action if it is invalid. (unwind_action::~unwind_action): Use run to execute action.

author	John W. Eaton <jwe@octave.org>
date	Sun, 03 Jan 2021 14:37:13 -0500
parents	6b3faa844395
children	7854d5752dd2

rev	line source
27923 bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	1 ////////////////////////////////////////////////////////////////////////
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	2 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	3 // Copyright (C) 1993-2020 The Octave Project Developers
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	4 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	5 // See the file COPYRIGHT.md in the top-level directory of this
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	6 // distribution or <https://octave.org/copyright/>.
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	7 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	8 // This file is part of Octave.
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	9 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	10 // Octave is free software: you can redistribute it and/or modify it
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	11 // under the terms of the GNU General Public License as published by
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	12 // the Free Software Foundation, either version 3 of the License, or
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	13 // (at your option) any later version.
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	14 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	15 // Octave is distributed in the hope that it will be useful, but
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	16 // WITHOUT ANY WARRANTY; without even the implied warranty of
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	18 // GNU General Public License for more details.
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	19 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	20 // You should have received a copy of the GNU General Public License
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	21 // along with Octave; see the file COPYING. If not, see
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	22 // <https://www.gnu.org/licenses/>.
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	23 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	24 ////////////////////////////////////////////////////////////////////////
15396 1054ab58cd58 abstract unwind_protect John W. Eaton <jwe@octave.org> parents: diff changeset	25
20791 f7084eae3318 maint: Use Octave coding conventions for #if statements. Rik <rik@octave.org> parents: 19697 diff changeset	26 #if ! defined (octave_action_container_h)
15396 1054ab58cd58 abstract unwind_protect John W. Eaton <jwe@octave.org> parents: diff changeset	27 #define octave_action_container_h 1
1054ab58cd58 abstract unwind_protect John W. Eaton <jwe@octave.org> parents: diff changeset	28
21244 1473547f50f5 include octave-config.h in public header files John W. Eaton <jwe@octave.org> parents: 21139 diff changeset	29 #include "octave-config.h"
1473547f50f5 include octave-config.h in public header files John W. Eaton <jwe@octave.org> parents: 21139 diff changeset	30
25653 b3d357990b52 better use of templates for action_container and derived classes John W. Eaton <jwe@octave.org> parents: 25103 diff changeset	31 #include <functional>
23442 53f5f8231c37 allow most header files to be compiled separately John W. Eaton <jwe@octave.org> parents: 23437 diff changeset	32
15396 1054ab58cd58 abstract unwind_protect John W. Eaton <jwe@octave.org> parents: diff changeset	33 // This class allows registering actions in a list for later
1054ab58cd58 abstract unwind_protect John W. Eaton <jwe@octave.org> parents: diff changeset	34 // execution, either explicitly or when the container goes out of
1054ab58cd58 abstract unwind_protect John W. Eaton <jwe@octave.org> parents: diff changeset	35 // scope.
1054ab58cd58 abstract unwind_protect John W. Eaton <jwe@octave.org> parents: diff changeset	36
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	37 // FIXME: is there a better name for this class?
15396 1054ab58cd58 abstract unwind_protect John W. Eaton <jwe@octave.org> parents: diff changeset	38
23747 0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	39 namespace octave
15396 1054ab58cd58 abstract unwind_protect John W. Eaton <jwe@octave.org> parents: diff changeset	40 {
23747 0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	41 class
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	42 action_container
15396 1054ab58cd58 abstract unwind_protect John W. Eaton <jwe@octave.org> parents: diff changeset	43 {
1054ab58cd58 abstract unwind_protect John W. Eaton <jwe@octave.org> parents: diff changeset	44 public:
22869 f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	45
23747 0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	46 // A generic unwind_protect element. Knows how to run itself and
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	47 // discard itself. Also, contains a pointer to the next element.
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	48 class elem
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	49 {
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	50 public:
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	51
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	52 friend class action_container;
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	53
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	54 elem (void) { }
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	55
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	56 // No copying!
15396 1054ab58cd58 abstract unwind_protect John W. Eaton <jwe@octave.org> parents: diff changeset	57
23747 0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	58 elem (const elem&) = delete;
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	59
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	60 elem& operator = (const elem&) = delete;
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	61
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	62 virtual ~elem (void) = default;
15396 1054ab58cd58 abstract unwind_protect John W. Eaton <jwe@octave.org> parents: diff changeset	63
23747 0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	64 virtual void run (void) { }
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	65 };
22869 f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	66
23747 0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	67 // An element that merely runs a void (*)(void) function.
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	68
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	69 class fcn_elem : public elem
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	70 {
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	71 public:
22869 f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	72
29251 30a5e691dd9f allow unwind_action functions to be empty and set after object creation John W. Eaton <jwe@octave.org> parents: 29230 diff changeset	73 // FIXME: Do we need to apply std::forward to the arguments to
30a5e691dd9f allow unwind_action functions to be empty and set after object creation John W. Eaton <jwe@octave.org> parents: 29230 diff changeset	74 // std::bind here?
30a5e691dd9f allow unwind_action functions to be empty and set after object creation John W. Eaton <jwe@octave.org> parents: 29230 diff changeset	75
25653 b3d357990b52 better use of templates for action_container and derived classes John W. Eaton <jwe@octave.org> parents: 25103 diff changeset	76 template <typename F, typename... Args>
b3d357990b52 better use of templates for action_container and derived classes John W. Eaton <jwe@octave.org> parents: 25103 diff changeset	77 fcn_elem (F&& fcn, Args&&... args)
b3d357990b52 better use of templates for action_container and derived classes John W. Eaton <jwe@octave.org> parents: 25103 diff changeset	78 : m_fcn (std::bind (fcn, args...))
b3d357990b52 better use of templates for action_container and derived classes John W. Eaton <jwe@octave.org> parents: 25103 diff changeset	79 { }
23747 0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	80
25653 b3d357990b52 better use of templates for action_container and derived classes John W. Eaton <jwe@octave.org> parents: 25103 diff changeset	81 void run (void) { m_fcn (); }
23747 0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	82
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	83 private:
15396 1054ab58cd58 abstract unwind_protect John W. Eaton <jwe@octave.org> parents: diff changeset	84
25653 b3d357990b52 better use of templates for action_container and derived classes John W. Eaton <jwe@octave.org> parents: 25103 diff changeset	85 std::function<void (void)> m_fcn;
23927 e3a36f84d01d provide variable-editor widget for the GUI Michael Barnes <mjbcode@runbox.com> parents: 23747 diff changeset	86 };
e3a36f84d01d provide variable-editor widget for the GUI Michael Barnes <mjbcode@runbox.com> parents: 23747 diff changeset	87
23747 0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	88 // An element that stores arbitrary variable, and restores it.
15396 1054ab58cd58 abstract unwind_protect John W. Eaton <jwe@octave.org> parents: diff changeset	89
23747 0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	90 template <typename T>
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	91 class restore_var_elem : public elem
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	92 {
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	93 public:
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	94
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	95 restore_var_elem (T& ref, const T& val)
27177 8498dccc15c7 minor style fixes John W. Eaton <jwe@octave.org> parents: 26377 diff changeset	96 : m_ptr (&ref), m_val (val) { }
15396 1054ab58cd58 abstract unwind_protect John W. Eaton <jwe@octave.org> parents: diff changeset	97
23747 0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	98 // No copying!
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	99
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	100 restore_var_elem (const restore_var_elem&) = delete;
15396 1054ab58cd58 abstract unwind_protect John W. Eaton <jwe@octave.org> parents: diff changeset	101
23747 0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	102 restore_var_elem& operator = (const restore_var_elem&) = delete;
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	103
27177 8498dccc15c7 minor style fixes John W. Eaton <jwe@octave.org> parents: 26377 diff changeset	104 void run (void) { *m_ptr = m_val; }
15396 1054ab58cd58 abstract unwind_protect John W. Eaton <jwe@octave.org> parents: diff changeset	105
23747 0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	106 private:
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	107
27177 8498dccc15c7 minor style fixes John W. Eaton <jwe@octave.org> parents: 26377 diff changeset	108 T *m_ptr, m_val;
23747 0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	109 };
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	110
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	111 // Deletes a class allocated using new.
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	112
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	113 template <typename T>
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	114 class delete_ptr_elem : public elem
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	115 {
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	116 public:
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	117
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	118 delete_ptr_elem (T *ptr)
27177 8498dccc15c7 minor style fixes John W. Eaton <jwe@octave.org> parents: 26377 diff changeset	119 : m_ptr (ptr) { }
22869 f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	120
23747 0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	121 // No copying!
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	122
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	123 delete_ptr_elem (const delete_ptr_elem&) = delete;
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	124
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	125 delete_ptr_elem operator = (const delete_ptr_elem&) = delete;
15396 1054ab58cd58 abstract unwind_protect John W. Eaton <jwe@octave.org> parents: diff changeset	126
27177 8498dccc15c7 minor style fixes John W. Eaton <jwe@octave.org> parents: 26377 diff changeset	127 void run (void) { delete m_ptr; }
23747 0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	128
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	129 private:
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	130
27177 8498dccc15c7 minor style fixes John W. Eaton <jwe@octave.org> parents: 26377 diff changeset	131 T *m_ptr;
23747 0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	132 };
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	133
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	134 action_container (void) { }
23437 442fe5b5afb5 new action_container constructors for unwind_protect John W. Eaton <jwe@octave.org> parents: 23220 diff changeset	135
22869 f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	136 // No copying!
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	137
23747 0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	138 action_container (const action_container&) = delete;
22869 f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	139
23747 0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	140 action_container& operator = (const action_container&) = delete;
15396 1054ab58cd58 abstract unwind_protect John W. Eaton <jwe@octave.org> parents: diff changeset	141
23747 0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	142 virtual ~action_container (void) = default;
15396 1054ab58cd58 abstract unwind_protect John W. Eaton <jwe@octave.org> parents: diff changeset	143
25653 b3d357990b52 better use of templates for action_container and derived classes John W. Eaton <jwe@octave.org> parents: 25103 diff changeset	144 template <typename F, typename... Args>
b3d357990b52 better use of templates for action_container and derived classes John W. Eaton <jwe@octave.org> parents: 25103 diff changeset	145 void add (F&& fcn, Args&&... args)
23747 0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	146 {
25653 b3d357990b52 better use of templates for action_container and derived classes John W. Eaton <jwe@octave.org> parents: 25103 diff changeset	147 add_action (new fcn_elem (std::forward<F> (fcn),
b3d357990b52 better use of templates for action_container and derived classes John W. Eaton <jwe@octave.org> parents: 25103 diff changeset	148 std::forward<Args> (args)...));
23747 0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	149 }
15396 1054ab58cd58 abstract unwind_protect John W. Eaton <jwe@octave.org> parents: diff changeset	150
25653 b3d357990b52 better use of templates for action_container and derived classes John W. Eaton <jwe@octave.org> parents: 25103 diff changeset	151 // Use separate template types for function pointer parameter
b3d357990b52 better use of templates for action_container and derived classes John W. Eaton <jwe@octave.org> parents: 25103 diff changeset	152 // declarations and captured arguments so that differences in
b3d357990b52 better use of templates for action_container and derived classes John W. Eaton <jwe@octave.org> parents: 25103 diff changeset	153 // const are handled properly.
15396 1054ab58cd58 abstract unwind_protect John W. Eaton <jwe@octave.org> parents: diff changeset	154
25653 b3d357990b52 better use of templates for action_container and derived classes John W. Eaton <jwe@octave.org> parents: 25103 diff changeset	155 template <typename... Params, typename... Args>
b3d357990b52 better use of templates for action_container and derived classes John W. Eaton <jwe@octave.org> parents: 25103 diff changeset	156 void add_fcn (void (*fcn) (Params...), Args&&... args)
23747 0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	157 {
25653 b3d357990b52 better use of templates for action_container and derived classes John W. Eaton <jwe@octave.org> parents: 25103 diff changeset	158 add_action (new fcn_elem (fcn, std::forward<Args> (args)...));
23747 0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	159 }
15396 1054ab58cd58 abstract unwind_protect John W. Eaton <jwe@octave.org> parents: diff changeset	160
25653 b3d357990b52 better use of templates for action_container and derived classes John W. Eaton <jwe@octave.org> parents: 25103 diff changeset	161 template <typename T, typename... Params, typename... Args>
b3d357990b52 better use of templates for action_container and derived classes John W. Eaton <jwe@octave.org> parents: 25103 diff changeset	162 void add_method (T obj, void (T::method) (Params...), Args&&... args)
23927 e3a36f84d01d provide variable-editor widget for the GUI Michael Barnes <mjbcode@runbox.com> parents: 23747 diff changeset	163 {
25653 b3d357990b52 better use of templates for action_container and derived classes John W. Eaton <jwe@octave.org> parents: 25103 diff changeset	164 add_action (new fcn_elem (method, obj, std::forward<Args> (args)...));
23927 e3a36f84d01d provide variable-editor widget for the GUI Michael Barnes <mjbcode@runbox.com> parents: 23747 diff changeset	165 }
e3a36f84d01d provide variable-editor widget for the GUI Michael Barnes <mjbcode@runbox.com> parents: 23747 diff changeset	166
25653 b3d357990b52 better use of templates for action_container and derived classes John W. Eaton <jwe@octave.org> parents: 25103 diff changeset	167 template <typename T, typename... Params, typename... Args>
b3d357990b52 better use of templates for action_container and derived classes John W. Eaton <jwe@octave.org> parents: 25103 diff changeset	168 void add_method (T& obj, void (T::*method) (Params...), Args&&... args)
23927 e3a36f84d01d provide variable-editor widget for the GUI Michael Barnes <mjbcode@runbox.com> parents: 23747 diff changeset	169 {
25653 b3d357990b52 better use of templates for action_container and derived classes John W. Eaton <jwe@octave.org> parents: 25103 diff changeset	170 add_action (new fcn_elem (method, &obj, std::forward<Args> (args)...));
23927 e3a36f84d01d provide variable-editor widget for the GUI Michael Barnes <mjbcode@runbox.com> parents: 23747 diff changeset	171 }
e3a36f84d01d provide variable-editor widget for the GUI Michael Barnes <mjbcode@runbox.com> parents: 23747 diff changeset	172
23747 0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	173 // Call to delete (T*).
23437 442fe5b5afb5 new action_container constructors for unwind_protect John W. Eaton <jwe@octave.org> parents: 23220 diff changeset	174
23747 0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	175 template <typename T>
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	176 void add_delete (T *obj)
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	177 {
25653 b3d357990b52 better use of templates for action_container and derived classes John W. Eaton <jwe@octave.org> parents: 25103 diff changeset	178 add_action (new delete_ptr_elem<T> (obj));
23747 0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	179 }
15396 1054ab58cd58 abstract unwind_protect John W. Eaton <jwe@octave.org> parents: diff changeset	180
23747 0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	181 // Protect any variable.
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	182 template <typename T>
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	183 void protect_var (T& var)
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	184 {
25653 b3d357990b52 better use of templates for action_container and derived classes John W. Eaton <jwe@octave.org> parents: 25103 diff changeset	185 add_action (new restore_var_elem<T> (var, var));
23747 0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	186 }
15396 1054ab58cd58 abstract unwind_protect John W. Eaton <jwe@octave.org> parents: diff changeset	187
23747 0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	188 // Protect any variable, value given.
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	189 template <typename T>
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	190 void protect_var (T& var, const T& val)
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	191 {
25653 b3d357990b52 better use of templates for action_container and derived classes John W. Eaton <jwe@octave.org> parents: 25103 diff changeset	192 add_action (new restore_var_elem<T> (var, val));
23747 0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	193 }
23437 442fe5b5afb5 new action_container constructors for unwind_protect John W. Eaton <jwe@octave.org> parents: 23220 diff changeset	194
23747 0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	195 operator bool (void) const { return ! empty (); }
15396 1054ab58cd58 abstract unwind_protect John W. Eaton <jwe@octave.org> parents: diff changeset	196
23747 0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	197 virtual void run_first (void) = 0;
15396 1054ab58cd58 abstract unwind_protect John W. Eaton <jwe@octave.org> parents: diff changeset	198
29230 6b3faa844395 Set API tags in files in liboctave/util (patch #8919). Markus Mützel <markus.muetzel@gmx.de> parents: 27923 diff changeset	199 OCTAVE_API void run (size_t num);
15396 1054ab58cd58 abstract unwind_protect John W. Eaton <jwe@octave.org> parents: diff changeset	200
23747 0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	201 void run (void) { run (size ()); }
15396 1054ab58cd58 abstract unwind_protect John W. Eaton <jwe@octave.org> parents: diff changeset	202
23747 0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	203 virtual void discard_first (void) = 0;
15396 1054ab58cd58 abstract unwind_protect John W. Eaton <jwe@octave.org> parents: diff changeset	204
23747 0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	205 void discard (size_t num)
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	206 {
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	207 if (num > size ())
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	208 num = size ();
15396 1054ab58cd58 abstract unwind_protect John W. Eaton <jwe@octave.org> parents: diff changeset	209
23747 0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	210 for (size_t i = 0; i < num; i++)
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	211 discard_first ();
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	212 }
15396 1054ab58cd58 abstract unwind_protect John W. Eaton <jwe@octave.org> parents: diff changeset	213
23747 0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	214 void discard (void) { discard (size ()); }
15396 1054ab58cd58 abstract unwind_protect John W. Eaton <jwe@octave.org> parents: diff changeset	215
23747 0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	216 virtual size_t size (void) const = 0;
15396 1054ab58cd58 abstract unwind_protect John W. Eaton <jwe@octave.org> parents: diff changeset	217
23747 0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	218 bool empty (void) const { return size () == 0; }
25653 b3d357990b52 better use of templates for action_container and derived classes John W. Eaton <jwe@octave.org> parents: 25103 diff changeset	219
b3d357990b52 better use of templates for action_container and derived classes John W. Eaton <jwe@octave.org> parents: 25103 diff changeset	220 protected:
b3d357990b52 better use of templates for action_container and derived classes John W. Eaton <jwe@octave.org> parents: 25103 diff changeset	221
b3d357990b52 better use of templates for action_container and derived classes John W. Eaton <jwe@octave.org> parents: 25103 diff changeset	222 virtual void add_action (elem *new_elem) = 0;
23747 0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	223 };
0b4d1575a2e2 move action_container and event_queue classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 23442 diff changeset	224 }
15396 1054ab58cd58 abstract unwind_protect John W. Eaton <jwe@octave.org> parents: diff changeset	225
1054ab58cd58 abstract unwind_protect John W. Eaton <jwe@octave.org> parents: diff changeset	226 #endif

Mercurial > octave

annotate liboctave/util/action-container.h @ 29251:30a5e691dd9f