octave-antonio: src/pt-eval.cc annotate

annotate src/pt-eval.cc @ 13225:359153d26cc1

eliminate DO_SIMPLE_FOR_LOOP_ONCE macro * pt-eval.cc (tree_evaluator::visit_simple_for_command): Eliminate DO_SIMPLE_FOR_LOOP_ONCE macro.

author	John W. Eaton <jwe@octave.org>
date	Sun, 25 Sep 2011 20:12:19 -0400
parents	9f0f2c226053
children	a6becd1b846e

rev	line source
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1 /*
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	2
11523 fd0a3ac60b0e update copyright notices John W. Eaton <jwe@octave.org> parents: 11304 diff changeset	3 Copyright (C) 2009-2011 John W. Eaton
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	4
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	5 This file is part of Octave.
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	6
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	7 Octave is free software; you can redistribute it and/or modify it
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	8 under the terms of the GNU General Public License as published by the
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	9 Free Software Foundation; either version 3 of the License, or (at your
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	10 option) any later version.
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	11
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	12 Octave is distributed in the hope that it will be useful, but WITHOUT
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	15 for more details.
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	16
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	17 You should have received a copy of the GNU General Public License
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	18 along with Octave; see the file COPYING. If not, see
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	19 <http://www.gnu.org/licenses/>.
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	20
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	21 */
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	22
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	23 #ifdef HAVE_CONFIG_H
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	24 #include <config.h>
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	25 #endif
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	26
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	27 #include <cctype>
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	28
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	29 #include <iostream>
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	30
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	31 #include <fstream>
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	32 #include <typeinfo>
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	33
10186 095a1e670e68 make dbstep work with keyboard function John W. Eaton <jwe@octave.org> parents: 10160 diff changeset	34 #include "debug.h"
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	35 #include "defun.h"
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	36 #include "error.h"
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	37 #include "gripes.h"
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	38 #include "input.h"
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	39 #include "ov-fcn-handle.h"
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	40 #include "ov-usr-fcn.h"
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	41 #include "variables.h"
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	42 #include "pt-all.h"
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	43 #include "pt-eval.h"
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	44 #include "symtab.h"
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	45 #include "unwind-prot.h"
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	46
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	47 static tree_evaluator std_evaluator;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	48
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	49 tree_evaluator *current_evaluator = &std_evaluator;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	50
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	51 int tree_evaluator::dbstep_flag = 0;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	52
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	53 size_t tree_evaluator::current_frame = 0;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	54
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	55 bool tree_evaluator::debug_mode = false;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	56
11304 c9fefa096ce2 echo commands in scripts John W. Eaton <jwe@octave.org> parents: 11066 diff changeset	57 tree_evaluator::stmt_list_type tree_evaluator::statement_context
c9fefa096ce2 echo commands in scripts John W. Eaton <jwe@octave.org> parents: 11066 diff changeset	58 = tree_evaluator::other;
8669 33783e94fb16 line number fixes and other evaluator tweaks John W. Eaton <jwe@octave.org> parents: 8662 diff changeset	59
33783e94fb16 line number fixes and other evaluator tweaks John W. Eaton <jwe@octave.org> parents: 8662 diff changeset	60 bool tree_evaluator::in_loop_command = false;
33783e94fb16 line number fixes and other evaluator tweaks John W. Eaton <jwe@octave.org> parents: 8662 diff changeset	61
10578 cb0883127251 limit on recursion via calls to source function John W. Eaton <jwe@octave.org> parents: 10315 diff changeset	62 // Maximum nesting level for functions, scripts, or sourced files called
cb0883127251 limit on recursion via calls to source function John W. Eaton <jwe@octave.org> parents: 10315 diff changeset	63 // recursively.
cb0883127251 limit on recursion via calls to source function John W. Eaton <jwe@octave.org> parents: 10315 diff changeset	64 int Vmax_recursion_depth = 256;
cb0883127251 limit on recursion via calls to source function John W. Eaton <jwe@octave.org> parents: 10315 diff changeset	65
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	66 // If TRUE, turn off printing of results in functions (as if a
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	67 // semicolon has been appended to each statement).
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	68 static bool Vsilent_functions = false;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	69
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	70 // Normal evaluator.
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	71
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	72 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	73 tree_evaluator::visit_anon_fcn_handle (tree_anon_fcn_handle&)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	74 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	75 panic_impossible ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	76 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	77
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	78 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	79 tree_evaluator::visit_argument_list (tree_argument_list&)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	80 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	81 panic_impossible ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	82 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	83
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	84 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	85 tree_evaluator::visit_binary_expression (tree_binary_expression&)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	86 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	87 panic_impossible ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	88 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	89
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	90 void
8845 5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	91 tree_evaluator::visit_break_command (tree_break_command& cmd)
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	92 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	93 if (! error_state)
8845 5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	94 {
5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	95 if (debug_mode)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	96 do_breakpoint (cmd.is_breakpoint ());
8845 5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	97
11304 c9fefa096ce2 echo commands in scripts John W. Eaton <jwe@octave.org> parents: 11066 diff changeset	98 if (statement_context == function \|\| statement_context == script
c9fefa096ce2 echo commands in scripts John W. Eaton <jwe@octave.org> parents: 11066 diff changeset	99 \|\| in_loop_command)
10188 97ae300aa73a improve implementation of break, continue, and return commands John W. Eaton <jwe@octave.org> parents: 10186 diff changeset	100 tree_break_command::breaking = 1;
8845 5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	101 }
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	102 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	103
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	104 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	105 tree_evaluator::visit_colon_expression (tree_colon_expression&)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	106 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	107 panic_impossible ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	108 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	109
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	110 void
10188 97ae300aa73a improve implementation of break, continue, and return commands John W. Eaton <jwe@octave.org> parents: 10186 diff changeset	111 tree_evaluator::visit_continue_command (tree_continue_command& cmd)
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	112 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	113 if (! error_state)
10188 97ae300aa73a improve implementation of break, continue, and return commands John W. Eaton <jwe@octave.org> parents: 10186 diff changeset	114 {
97ae300aa73a improve implementation of break, continue, and return commands John W. Eaton <jwe@octave.org> parents: 10186 diff changeset	115 if (debug_mode)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	116 do_breakpoint (cmd.is_breakpoint ());
10188 97ae300aa73a improve implementation of break, continue, and return commands John W. Eaton <jwe@octave.org> parents: 10186 diff changeset	117
11304 c9fefa096ce2 echo commands in scripts John W. Eaton <jwe@octave.org> parents: 11066 diff changeset	118 if (statement_context == function \|\| statement_context == script
c9fefa096ce2 echo commands in scripts John W. Eaton <jwe@octave.org> parents: 11066 diff changeset	119 \|\| in_loop_command)
10188 97ae300aa73a improve implementation of break, continue, and return commands John W. Eaton <jwe@octave.org> parents: 10186 diff changeset	120 tree_continue_command::continuing = 1;
97ae300aa73a improve implementation of break, continue, and return commands John W. Eaton <jwe@octave.org> parents: 10186 diff changeset	121 }
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	122 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	123
10186 095a1e670e68 make dbstep work with keyboard function John W. Eaton <jwe@octave.org> parents: 10160 diff changeset	124 void
095a1e670e68 make dbstep work with keyboard function John W. Eaton <jwe@octave.org> parents: 10160 diff changeset	125 tree_evaluator::reset_debug_state (void)
095a1e670e68 make dbstep work with keyboard function John W. Eaton <jwe@octave.org> parents: 10160 diff changeset	126 {
10194 d4f813c3f5ed more debug mode fixes John W. Eaton <jwe@octave.org> parents: 10188 diff changeset	127 debug_mode = bp_table::have_breakpoints () \|\| Vdebugging;
10186 095a1e670e68 make dbstep work with keyboard function John W. Eaton <jwe@octave.org> parents: 10160 diff changeset	128
095a1e670e68 make dbstep work with keyboard function John W. Eaton <jwe@octave.org> parents: 10160 diff changeset	129 dbstep_flag = 0;
095a1e670e68 make dbstep work with keyboard function John W. Eaton <jwe@octave.org> parents: 10160 diff changeset	130 }
095a1e670e68 make dbstep work with keyboard function John W. Eaton <jwe@octave.org> parents: 10160 diff changeset	131
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	132 static inline void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	133 do_global_init (tree_decl_elt& elt)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	134 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	135 tree_identifier *id = elt.ident ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	136
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	137 if (id)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	138 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	139 id->mark_global ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	140
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	141 if (! error_state)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	142 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	143 octave_lvalue ult = id->lvalue ();
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	144
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	145 if (ult.is_undefined ())
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	146 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	147 tree_expression *expr = elt.expression ();
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	148
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	149 octave_value init_val;
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	150
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	151 if (expr)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	152 init_val = expr->rvalue1 ();
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	153 else
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	154 init_val = Matrix ();
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	155
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	156 ult.assign (octave_value::op_asn_eq, init_val);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	157 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	158 }
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	159 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	160 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	161
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	162 static inline void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	163 do_static_init (tree_decl_elt& elt)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	164 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	165 tree_identifier *id = elt.ident ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	166
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	167 if (id)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	168 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	169 id->mark_as_static ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	170
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	171 octave_lvalue ult = id->lvalue ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	172
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	173 if (ult.is_undefined ())
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	174 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	175 tree_expression *expr = elt.expression ();
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	176
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	177 octave_value init_val;
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	178
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	179 if (expr)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	180 init_val = expr->rvalue1 ();
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	181 else
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	182 init_val = Matrix ();
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	183
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	184 ult.assign (octave_value::op_asn_eq, init_val);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	185 }
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	186 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	187 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	188
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	189 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	190 tree_evaluator::do_decl_init_list (decl_elt_init_fcn fcn,
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	191 tree_decl_init_list *init_list)
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	192 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	193 if (init_list)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	194 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	195 for (tree_decl_init_list::iterator p = init_list->begin ();
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	196 p != init_list->end (); p++)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	197 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	198 tree_decl_elt elt = p;
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	199
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	200 fcn (*elt);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	201
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	202 if (error_state)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	203 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	204 }
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	205 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	206 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	207
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	208 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	209 tree_evaluator::visit_global_command (tree_global_command& cmd)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	210 {
8845 5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	211 if (debug_mode)
9484 bbe033dcfe13 make dbwhere work when called at keyboard prompt John W. Eaton <jwe@octave.org> parents: 9418 diff changeset	212 do_breakpoint (cmd.is_breakpoint ());
8845 5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	213
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	214 do_decl_init_list (do_global_init, cmd.initializer_list ());
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	215 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	216
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	217 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	218 tree_evaluator::visit_static_command (tree_static_command& cmd)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	219 {
8845 5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	220 if (debug_mode)
9484 bbe033dcfe13 make dbwhere work when called at keyboard prompt John W. Eaton <jwe@octave.org> parents: 9418 diff changeset	221 do_breakpoint (cmd.is_breakpoint ());
8845 5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	222
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	223 do_decl_init_list (do_static_init, cmd.initializer_list ());
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	224 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	225
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	226 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	227 tree_evaluator::visit_decl_elt (tree_decl_elt&)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	228 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	229 panic_impossible ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	230 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	231
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	232 #if 0
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	233 bool
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	234 tree_decl_elt::eval (void)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	235 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	236 bool retval = false;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	237
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	238 if (id && expr)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	239 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	240 octave_lvalue ult = id->lvalue ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	241
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	242 octave_value init_val = expr->rvalue1 ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	243
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	244 if (! error_state)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	245 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	246 ult.assign (octave_value::op_asn_eq, init_val);
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	247
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	248 retval = true;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	249 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	250 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	251
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	252 return retval;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	253 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	254 #endif
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	255
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	256 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	257 tree_evaluator::visit_decl_init_list (tree_decl_init_list&)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	258 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	259 panic_impossible ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	260 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	261
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	262 // Decide if it's time to quit a for or while loop.
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	263 static inline bool
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	264 quit_loop_now (void)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	265 {
10142 829e69ec3110 make OCTAVE_QUIT a function Jaroslav Hajek <highegg@gmail.com> parents: 10066 diff changeset	266 octave_quit ();
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	267
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	268 // Maybe handle `continue N' someday...
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	269
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	270 if (tree_continue_command::continuing)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	271 tree_continue_command::continuing--;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	272
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	273 bool quit = (error_state
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	274 \|\| tree_return_command::returning
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	275 \|\| tree_break_command::breaking
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	276 \|\| tree_continue_command::continuing);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	277
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	278 if (tree_break_command::breaking)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	279 tree_break_command::breaking--;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	280
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	281 return quit;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	282 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	283
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	284 #define DO_SIMPLE_FOR_LOOP_ONCE(VAL) \
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	285 do \
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	286 { \
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	287 ult.assign (octave_value::op_asn_eq, VAL); \
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	288 \
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	289 if (! error_state && loop_body) \
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	290 loop_body->accept (*this); \
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	291 \
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	292 quit = quit_loop_now (); \
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	293 } \
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	294 while (0)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	295
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	296 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	297 tree_evaluator::visit_simple_for_command (tree_simple_for_command& cmd)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	298 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	299 if (error_state)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	300 return;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	301
8845 5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	302 if (debug_mode)
9484 bbe033dcfe13 make dbwhere work when called at keyboard prompt John W. Eaton <jwe@octave.org> parents: 9418 diff changeset	303 do_breakpoint (cmd.is_breakpoint ());
8845 5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	304
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	305 unwind_protect frame;
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	306
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	307 frame.protect_var (in_loop_command);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	308
8669 33783e94fb16 line number fixes and other evaluator tweaks John W. Eaton <jwe@octave.org> parents: 8662 diff changeset	309 in_loop_command = true;
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	310
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	311 tree_expression *expr = cmd.control_expr ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	312
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	313 octave_value rhs = expr->rvalue1 ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	314
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	315 if (error_state \|\| rhs.is_undefined ())
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	316 return;
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	317
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	318 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	319 tree_expression *lhs = cmd.left_hand_side ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	320
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	321 octave_lvalue ult = lhs->lvalue ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	322
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	323 if (error_state)
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	324 return;
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	325
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	326 tree_statement_list *loop_body = cmd.body ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	327
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	328 if (rhs.is_range ())
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	329 {
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	330 Range rng = rhs.range_value ();
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	331
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	332 octave_idx_type steps = rng.nelem ();
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	333 double b = rng.base ();
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	334 double increment = rng.inc ();
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	335 bool quit = false;
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	336
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	337 for (octave_idx_type i = 0; i < steps; i++)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	338 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	339 // Use multiplication here rather than declaring a
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	340 // temporary variable outside the loop and using
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	341 //
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	342 // tmp_val += increment
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	343 //
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	344 // to avoid problems with limited precision. Also, this
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	345 // is consistent with the way Range::matrix_value is
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	346 // implemented.
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	347
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	348 octave_value val (b + i * increment);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	349
13225 359153d26cc1 eliminate DO_SIMPLE_FOR_LOOP_ONCE macro John W. Eaton <jwe@octave.org> parents: 12833 diff changeset	350 ult.assign (octave_value::op_asn_eq, val);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	351
13225 359153d26cc1 eliminate DO_SIMPLE_FOR_LOOP_ONCE macro John W. Eaton <jwe@octave.org> parents: 12833 diff changeset	352 if (! error_state && loop_body)
359153d26cc1 eliminate DO_SIMPLE_FOR_LOOP_ONCE macro John W. Eaton <jwe@octave.org> parents: 12833 diff changeset	353 loop_body->accept (*this);
359153d26cc1 eliminate DO_SIMPLE_FOR_LOOP_ONCE macro John W. Eaton <jwe@octave.org> parents: 12833 diff changeset	354
359153d26cc1 eliminate DO_SIMPLE_FOR_LOOP_ONCE macro John W. Eaton <jwe@octave.org> parents: 12833 diff changeset	355 if (quit_loop_now ())
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	356 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	357 }
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	358 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	359 else if (rhs.is_scalar_type ())
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	360 {
13225 359153d26cc1 eliminate DO_SIMPLE_FOR_LOOP_ONCE macro John W. Eaton <jwe@octave.org> parents: 12833 diff changeset	361 ult.assign (octave_value::op_asn_eq, rhs);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	362
13225 359153d26cc1 eliminate DO_SIMPLE_FOR_LOOP_ONCE macro John W. Eaton <jwe@octave.org> parents: 12833 diff changeset	363 if (! error_state && loop_body)
359153d26cc1 eliminate DO_SIMPLE_FOR_LOOP_ONCE macro John W. Eaton <jwe@octave.org> parents: 12833 diff changeset	364 loop_body->accept (*this);
359153d26cc1 eliminate DO_SIMPLE_FOR_LOOP_ONCE macro John W. Eaton <jwe@octave.org> parents: 12833 diff changeset	365
359153d26cc1 eliminate DO_SIMPLE_FOR_LOOP_ONCE macro John W. Eaton <jwe@octave.org> parents: 12833 diff changeset	366 // Maybe decrement break and continue states.
359153d26cc1 eliminate DO_SIMPLE_FOR_LOOP_ONCE macro John W. Eaton <jwe@octave.org> parents: 12833 diff changeset	367 quit_loop_now ();
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	368 }
9005 f26e0f00ce01 fix simple looping over structs Jaroslav Hajek <highegg@gmail.com> parents: 8868 diff changeset	369 else if (rhs.is_matrix_type () \|\| rhs.is_cell () \|\| rhs.is_string ()
f26e0f00ce01 fix simple looping over structs Jaroslav Hajek <highegg@gmail.com> parents: 8868 diff changeset	370 \|\| rhs.is_map ())
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	371 {
8662 af72c8137d64 improve looping over arrays Jaroslav Hajek <highegg@gmail.com> parents: 8658 diff changeset	372 // A matrix or cell is reshaped to 2 dimensions and iterated by
af72c8137d64 improve looping over arrays Jaroslav Hajek <highegg@gmail.com> parents: 8658 diff changeset	373 // columns.
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	374
8662 af72c8137d64 improve looping over arrays Jaroslav Hajek <highegg@gmail.com> parents: 8658 diff changeset	375 bool quit = false;
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	376
8662 af72c8137d64 improve looping over arrays Jaroslav Hajek <highegg@gmail.com> parents: 8658 diff changeset	377 dim_vector dv = rhs.dims ().redim (2);
af72c8137d64 improve looping over arrays Jaroslav Hajek <highegg@gmail.com> parents: 8658 diff changeset	378
8679 280fae940bb0 optimize scalar indexing Jaroslav Hajek <highegg@gmail.com> parents: 8677 diff changeset	379 octave_idx_type nrows = dv(0), steps = dv(1);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	380
8662 af72c8137d64 improve looping over arrays Jaroslav Hajek <highegg@gmail.com> parents: 8658 diff changeset	381 if (steps > 0)
af72c8137d64 improve looping over arrays Jaroslav Hajek <highegg@gmail.com> parents: 8658 diff changeset	382 {
af72c8137d64 improve looping over arrays Jaroslav Hajek <highegg@gmail.com> parents: 8658 diff changeset	383 octave_value arg = rhs;
af72c8137d64 improve looping over arrays Jaroslav Hajek <highegg@gmail.com> parents: 8658 diff changeset	384 if (rhs.ndims () > 2)
af72c8137d64 improve looping over arrays Jaroslav Hajek <highegg@gmail.com> parents: 8658 diff changeset	385 arg = arg.reshape (dv);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	386
8679 280fae940bb0 optimize scalar indexing Jaroslav Hajek <highegg@gmail.com> parents: 8677 diff changeset	387 // for row vectors, use single index to speed things up.
280fae940bb0 optimize scalar indexing Jaroslav Hajek <highegg@gmail.com> parents: 8677 diff changeset	388 octave_value_list idx;
280fae940bb0 optimize scalar indexing Jaroslav Hajek <highegg@gmail.com> parents: 8677 diff changeset	389 octave_idx_type iidx;
280fae940bb0 optimize scalar indexing Jaroslav Hajek <highegg@gmail.com> parents: 8677 diff changeset	390 if (nrows == 1)
280fae940bb0 optimize scalar indexing Jaroslav Hajek <highegg@gmail.com> parents: 8677 diff changeset	391 {
280fae940bb0 optimize scalar indexing Jaroslav Hajek <highegg@gmail.com> parents: 8677 diff changeset	392 idx.resize (1);
280fae940bb0 optimize scalar indexing Jaroslav Hajek <highegg@gmail.com> parents: 8677 diff changeset	393 iidx = 0;
280fae940bb0 optimize scalar indexing Jaroslav Hajek <highegg@gmail.com> parents: 8677 diff changeset	394 }
280fae940bb0 optimize scalar indexing Jaroslav Hajek <highegg@gmail.com> parents: 8677 diff changeset	395 else
280fae940bb0 optimize scalar indexing Jaroslav Hajek <highegg@gmail.com> parents: 8677 diff changeset	396 {
280fae940bb0 optimize scalar indexing Jaroslav Hajek <highegg@gmail.com> parents: 8677 diff changeset	397 idx.resize (2);
280fae940bb0 optimize scalar indexing Jaroslav Hajek <highegg@gmail.com> parents: 8677 diff changeset	398 idx(0) = octave_value::magic_colon_t;
280fae940bb0 optimize scalar indexing Jaroslav Hajek <highegg@gmail.com> parents: 8677 diff changeset	399 iidx = 1;
280fae940bb0 optimize scalar indexing Jaroslav Hajek <highegg@gmail.com> parents: 8677 diff changeset	400 }
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	401
8662 af72c8137d64 improve looping over arrays Jaroslav Hajek <highegg@gmail.com> parents: 8658 diff changeset	402 for (octave_idx_type i = 1; i <= steps; i++)
af72c8137d64 improve looping over arrays Jaroslav Hajek <highegg@gmail.com> parents: 8658 diff changeset	403 {
af72c8137d64 improve looping over arrays Jaroslav Hajek <highegg@gmail.com> parents: 8658 diff changeset	404 // do_index_op expects one-based indices.
8679 280fae940bb0 optimize scalar indexing Jaroslav Hajek <highegg@gmail.com> parents: 8677 diff changeset	405 idx(iidx) = i;
8662 af72c8137d64 improve looping over arrays Jaroslav Hajek <highegg@gmail.com> parents: 8658 diff changeset	406 octave_value val = arg.do_index_op (idx);
13225 359153d26cc1 eliminate DO_SIMPLE_FOR_LOOP_ONCE macro John W. Eaton <jwe@octave.org> parents: 12833 diff changeset	407
359153d26cc1 eliminate DO_SIMPLE_FOR_LOOP_ONCE macro John W. Eaton <jwe@octave.org> parents: 12833 diff changeset	408 ult.assign (octave_value::op_asn_eq, val);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	409
13225 359153d26cc1 eliminate DO_SIMPLE_FOR_LOOP_ONCE macro John W. Eaton <jwe@octave.org> parents: 12833 diff changeset	410 if (! error_state && loop_body)
359153d26cc1 eliminate DO_SIMPLE_FOR_LOOP_ONCE macro John W. Eaton <jwe@octave.org> parents: 12833 diff changeset	411 loop_body->accept (*this);
359153d26cc1 eliminate DO_SIMPLE_FOR_LOOP_ONCE macro John W. Eaton <jwe@octave.org> parents: 12833 diff changeset	412
359153d26cc1 eliminate DO_SIMPLE_FOR_LOOP_ONCE macro John W. Eaton <jwe@octave.org> parents: 12833 diff changeset	413 if (quit_loop_now ())
8662 af72c8137d64 improve looping over arrays Jaroslav Hajek <highegg@gmail.com> parents: 8658 diff changeset	414 break;
af72c8137d64 improve looping over arrays Jaroslav Hajek <highegg@gmail.com> parents: 8658 diff changeset	415 }
af72c8137d64 improve looping over arrays Jaroslav Hajek <highegg@gmail.com> parents: 8658 diff changeset	416 }
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	417 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	418 else
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	419 {
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	420 ::error ("invalid type in for loop expression near line %d, column %d",
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	421 cmd.line (), cmd.column ());
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	422 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	423 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	424 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	425
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	426 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	427 tree_evaluator::visit_complex_for_command (tree_complex_for_command& cmd)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	428 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	429 if (error_state)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	430 return;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	431
8845 5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	432 if (debug_mode)
9484 bbe033dcfe13 make dbwhere work when called at keyboard prompt John W. Eaton <jwe@octave.org> parents: 9418 diff changeset	433 do_breakpoint (cmd.is_breakpoint ());
8845 5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	434
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	435 unwind_protect frame;
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	436
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	437 frame.protect_var (in_loop_command);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	438
8669 33783e94fb16 line number fixes and other evaluator tweaks John W. Eaton <jwe@octave.org> parents: 8662 diff changeset	439 in_loop_command = true;
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	440
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	441 tree_expression *expr = cmd.control_expr ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	442
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	443 octave_value rhs = expr->rvalue1 ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	444
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	445 if (error_state \|\| rhs.is_undefined ())
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	446 return;
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	447
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	448 if (rhs.is_map ())
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	449 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	450 // Cycle through structure elements. First element of id_list
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	451 // is set to value and the second is set to the name of the
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	452 // structure element.
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	453
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	454 tree_argument_list *lhs = cmd.left_hand_side ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	455
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	456 tree_argument_list::iterator p = lhs->begin ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	457
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	458 tree_expression elt = p++;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	459
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	460 octave_lvalue val_ref = elt->lvalue ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	461
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	462 elt = *p;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	463
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	464 octave_lvalue key_ref = elt->lvalue ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	465
11066 e678346a47d9 toplev.cc, sighandlers.cc, utils.cc, octave.cc, pt-eval.cc pt-idx.cc: Octave_map to octave_map and octave_scalar_map conversion John W. Eaton <jwe@octave.org> parents: 10840 diff changeset	466 const octave_map tmp_val = rhs.map_value ();
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	467
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	468 tree_statement_list *loop_body = cmd.body ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	469
9494 ca95d991a65a use key list order for iterating through map with for loop John W. Eaton <jwe@octave.org> parents: 9484 diff changeset	470 string_vector keys = tmp_val.keys ();
ca95d991a65a use key list order for iterating through map with for loop John W. Eaton <jwe@octave.org> parents: 9484 diff changeset	471
ca95d991a65a use key list order for iterating through map with for loop John W. Eaton <jwe@octave.org> parents: 9484 diff changeset	472 octave_idx_type nel = keys.numel ();
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	473
9494 ca95d991a65a use key list order for iterating through map with for loop John W. Eaton <jwe@octave.org> parents: 9484 diff changeset	474 for (octave_idx_type i = 0; i < nel; i++)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	475 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	476 std::string key = keys[i];
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	477
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	478 const Cell val_lst = tmp_val.contents (key);
9494 ca95d991a65a use key list order for iterating through map with for loop John W. Eaton <jwe@octave.org> parents: 9484 diff changeset	479
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	480 octave_idx_type n = val_lst.numel ();
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	481
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	482 octave_value val = (n == 1) ? val_lst(0) : octave_value (val_lst);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	483
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	484 val_ref.assign (octave_value::op_asn_eq, val);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	485 key_ref.assign (octave_value::op_asn_eq, key);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	486
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	487 if (! error_state && loop_body)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	488 loop_body->accept (*this);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	489
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	490 if (quit_loop_now ())
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	491 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	492 }
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	493 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	494 else
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	495 error ("in statement `for [X, Y] = VAL', VAL must be a structure");
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	496 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	497
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	498 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	499 tree_evaluator::visit_octave_user_script (octave_user_script&)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	500 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	501 panic_impossible ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	502 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	503
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	504 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	505 tree_evaluator::visit_octave_user_function (octave_user_function&)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	506 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	507 panic_impossible ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	508 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	509
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	510 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	511 tree_evaluator::visit_octave_user_function_header (octave_user_function&)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	512 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	513 panic_impossible ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	514 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	515
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	516 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	517 tree_evaluator::visit_octave_user_function_trailer (octave_user_function&)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	518 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	519 panic_impossible ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	520 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	521
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	522 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	523 tree_evaluator::visit_function_def (tree_function_def& cmd)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	524 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	525 octave_value fcn = cmd.function ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	526
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	527 octave_function *f = fcn.function_value ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	528
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	529 if (f)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	530 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	531 std::string nm = f->name ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	532
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	533 symbol_table::install_cmdline_function (nm, fcn);
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	534
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	535 // Make sure that any variable with the same name as the new
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	536 // function is cleared.
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	537
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	538 symbol_table::varref (nm) = octave_value ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	539 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	540 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	541
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	542 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	543 tree_evaluator::visit_identifier (tree_identifier&)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	544 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	545 panic_impossible ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	546 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	547
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	548 void
8677 095ae5e0a831 eliminte some compiler warnings John W. Eaton <jwe@octave.org> parents: 8669 diff changeset	549 tree_evaluator::visit_if_clause (tree_if_clause&)
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	550 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	551 panic_impossible ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	552 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	553
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	554 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	555 tree_evaluator::visit_if_command (tree_if_command& cmd)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	556 {
10836 6abf966379de pt-eval.cc: process breakpoints for if and switch commands John W. Eaton <jwe@octave.org> parents: 10578 diff changeset	557 if (debug_mode)
6abf966379de pt-eval.cc: process breakpoints for if and switch commands John W. Eaton <jwe@octave.org> parents: 10578 diff changeset	558 do_breakpoint (cmd.is_breakpoint ());
6abf966379de pt-eval.cc: process breakpoints for if and switch commands John W. Eaton <jwe@octave.org> parents: 10578 diff changeset	559
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	560 tree_if_command_list *lst = cmd.cmd_list ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	561
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	562 if (lst)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	563 lst->accept (*this);
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	564 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	565
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	566 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	567 tree_evaluator::visit_if_command_list (tree_if_command_list& lst)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	568 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	569 for (tree_if_command_list::iterator p = lst.begin (); p != lst.end (); p++)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	570 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	571 tree_if_clause tic = p;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	572
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	573 tree_expression *expr = tic->condition ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	574
8845 5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	575 if (debug_mode && ! tic->is_else_clause ())
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	576 do_breakpoint (tic->is_breakpoint ());
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	577
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	578 if (tic->is_else_clause () \|\| expr->is_logically_true ("if"))
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	579 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	580 if (! error_state)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	581 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	582 tree_statement_list *stmt_lst = tic->commands ();
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	583
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	584 if (stmt_lst)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	585 stmt_lst->accept (*this);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	586 }
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	587
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	588 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	589 }
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	590 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	591 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	592
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	593 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	594 tree_evaluator::visit_index_expression (tree_index_expression&)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	595 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	596 panic_impossible ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	597 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	598
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	599 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	600 tree_evaluator::visit_matrix (tree_matrix&)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	601 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	602 panic_impossible ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	603 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	604
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	605 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	606 tree_evaluator::visit_cell (tree_cell&)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	607 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	608 panic_impossible ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	609 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	610
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	611 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	612 tree_evaluator::visit_multi_assignment (tree_multi_assignment&)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	613 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	614 panic_impossible ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	615 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	616
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	617 void
8845 5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	618 tree_evaluator::visit_no_op_command (tree_no_op_command& cmd)
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	619 {
8845 5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	620 if (debug_mode && cmd.is_end_of_fcn_or_script ())
9484 bbe033dcfe13 make dbwhere work when called at keyboard prompt John W. Eaton <jwe@octave.org> parents: 9418 diff changeset	621 do_breakpoint (cmd.is_breakpoint (), true);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	622 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	623
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	624 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	625 tree_evaluator::visit_constant (tree_constant&)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	626 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	627 panic_impossible ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	628 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	629
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	630 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	631 tree_evaluator::visit_fcn_handle (tree_fcn_handle&)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	632 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	633 panic_impossible ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	634 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	635
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	636 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	637 tree_evaluator::visit_parameter_list (tree_parameter_list&)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	638 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	639 panic_impossible ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	640 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	641
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	642 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	643 tree_evaluator::visit_postfix_expression (tree_postfix_expression&)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	644 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	645 panic_impossible ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	646 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	647
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	648 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	649 tree_evaluator::visit_prefix_expression (tree_prefix_expression&)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	650 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	651 panic_impossible ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	652 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	653
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	654 void
8845 5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	655 tree_evaluator::visit_return_command (tree_return_command& cmd)
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	656 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	657 if (! error_state)
8845 5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	658 {
5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	659 if (debug_mode)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	660 do_breakpoint (cmd.is_breakpoint ());
8845 5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	661
10188 97ae300aa73a improve implementation of break, continue, and return commands John W. Eaton <jwe@octave.org> parents: 10186 diff changeset	662 // Act like dbcont.
97ae300aa73a improve implementation of break, continue, and return commands John W. Eaton <jwe@octave.org> parents: 10186 diff changeset	663
97ae300aa73a improve implementation of break, continue, and return commands John W. Eaton <jwe@octave.org> parents: 10186 diff changeset	664 if (Vdebugging
97ae300aa73a improve implementation of break, continue, and return commands John W. Eaton <jwe@octave.org> parents: 10186 diff changeset	665 && octave_call_stack::current_frame () == current_frame)
97ae300aa73a improve implementation of break, continue, and return commands John W. Eaton <jwe@octave.org> parents: 10186 diff changeset	666 {
97ae300aa73a improve implementation of break, continue, and return commands John W. Eaton <jwe@octave.org> parents: 10186 diff changeset	667 Vdebugging = false;
97ae300aa73a improve implementation of break, continue, and return commands John W. Eaton <jwe@octave.org> parents: 10186 diff changeset	668
10194 d4f813c3f5ed more debug mode fixes John W. Eaton <jwe@octave.org> parents: 10188 diff changeset	669 reset_debug_state ();
10188 97ae300aa73a improve implementation of break, continue, and return commands John W. Eaton <jwe@octave.org> parents: 10186 diff changeset	670 }
11304 c9fefa096ce2 echo commands in scripts John W. Eaton <jwe@octave.org> parents: 11066 diff changeset	671 else if (statement_context == function \|\| statement_context == script
c9fefa096ce2 echo commands in scripts John W. Eaton <jwe@octave.org> parents: 11066 diff changeset	672 \|\| in_loop_command)
10188 97ae300aa73a improve implementation of break, continue, and return commands John W. Eaton <jwe@octave.org> parents: 10186 diff changeset	673 tree_return_command::returning = 1;
8845 5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	674 }
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	675 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	676
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	677 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	678 tree_evaluator::visit_return_list (tree_return_list&)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	679 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	680 panic_impossible ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	681 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	682
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	683 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	684 tree_evaluator::visit_simple_assignment (tree_simple_assignment&)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	685 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	686 panic_impossible ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	687 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	688
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	689 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	690 tree_evaluator::visit_statement (tree_statement& stmt)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	691 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	692 tree_command *cmd = stmt.command ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	693 tree_expression *expr = stmt.expression ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	694
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	695 if (cmd \|\| expr)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	696 {
11304 c9fefa096ce2 echo commands in scripts John W. Eaton <jwe@octave.org> parents: 11066 diff changeset	697 if (statement_context == function \|\| statement_context == script)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	698 {
10839 65bc065bec95 still more debugger fixes John W. Eaton <jwe@octave.org> parents: 10836 diff changeset	699 // Skip commands issued at a debug> prompt to avoid disturbing
65bc065bec95 still more debugger fixes John W. Eaton <jwe@octave.org> parents: 10836 diff changeset	700 // the state of the program we are debugging.
65bc065bec95 still more debugger fixes John W. Eaton <jwe@octave.org> parents: 10836 diff changeset	701
65bc065bec95 still more debugger fixes John W. Eaton <jwe@octave.org> parents: 10836 diff changeset	702 if (! Vdebugging)
65bc065bec95 still more debugger fixes John W. Eaton <jwe@octave.org> parents: 10836 diff changeset	703 octave_call_stack::set_statement (&stmt);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	704
11304 c9fefa096ce2 echo commands in scripts John W. Eaton <jwe@octave.org> parents: 11066 diff changeset	705 // FIXME -- we need to distinguish functions from scripts to
c9fefa096ce2 echo commands in scripts John W. Eaton <jwe@octave.org> parents: 11066 diff changeset	706 // get this right.
c9fefa096ce2 echo commands in scripts John W. Eaton <jwe@octave.org> parents: 11066 diff changeset	707 if ((statement_context == script
c9fefa096ce2 echo commands in scripts John W. Eaton <jwe@octave.org> parents: 11066 diff changeset	708 && ((Vecho_executing_commands & ECHO_SCRIPTS)
c9fefa096ce2 echo commands in scripts John W. Eaton <jwe@octave.org> parents: 11066 diff changeset	709 \|\| (Vecho_executing_commands & ECHO_FUNCTIONS)))
c9fefa096ce2 echo commands in scripts John W. Eaton <jwe@octave.org> parents: 11066 diff changeset	710 \|\| (statement_context == function
c9fefa096ce2 echo commands in scripts John W. Eaton <jwe@octave.org> parents: 11066 diff changeset	711 && (Vecho_executing_commands & ECHO_FUNCTIONS)))
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	712 stmt.echo_code ();
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	713 }
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	714
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	715 try
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	716 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	717 if (cmd)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	718 cmd->accept (*this);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	719 else
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	720 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	721 if (debug_mode)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	722 do_breakpoint (expr->is_breakpoint ());
8845 5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	723
11304 c9fefa096ce2 echo commands in scripts John W. Eaton <jwe@octave.org> parents: 11066 diff changeset	724 if ((statement_context == function \|\| statement_context == script)
c9fefa096ce2 echo commands in scripts John W. Eaton <jwe@octave.org> parents: 11066 diff changeset	725 && Vsilent_functions)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	726 expr->set_print_flag (false);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	727
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	728 // FIXME -- maybe all of this should be packaged in
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	729 // one virtual function that returns a flag saying whether
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	730 // or not the expression will take care of binding ans and
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	731 // printing the result.
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	732
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	733 // FIXME -- it seems that we should just have to
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	734 // call expr->rvalue1 () and that should take care of
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	735 // everything, binding ans as necessary?
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	736
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	737 bool do_bind_ans = false;
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	738
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	739 if (expr->is_identifier ())
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	740 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	741 tree_identifier id = dynamic_cast<tree_identifier > (expr);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	742
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	743 do_bind_ans = (! id->is_variable ());
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	744 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	745 else
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	746 do_bind_ans = (! expr->is_assignment_expression ());
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	747
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	748 octave_value tmp_result = expr->rvalue1 (0);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	749
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	750 if (do_bind_ans && ! (error_state \|\| tmp_result.is_undefined ()))
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	751 bind_ans (tmp_result, expr->print_result ());
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	752
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	753 // if (tmp_result.is_defined ())
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	754 // result_values(0) = tmp_result;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	755 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	756 }
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	757 catch (octave_execution_exception)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	758 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	759 gripe_library_execution_error ();
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	760 }
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	761 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	762 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	763
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	764 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	765 tree_evaluator::visit_statement_list (tree_statement_list& lst)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	766 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	767 static octave_value_list empty_list;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	768
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	769 if (error_state)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	770 return;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	771
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	772 tree_statement_list::iterator p = lst.begin ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	773
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	774 if (p != lst.end ())
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	775 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	776 while (true)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	777 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	778 tree_statement elt = p++;
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	779
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	780 if (elt)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	781 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	782 octave_quit ();
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	783
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	784 elt->accept (*this);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	785
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	786 if (error_state)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	787 break;
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	788
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	789 if (tree_break_command::breaking
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	790 \|\| tree_continue_command::continuing)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	791 break;
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	792
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	793 if (tree_return_command::returning)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	794 break;
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	795
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	796 if (p == lst.end ())
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	797 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	798 else
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	799 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	800 // Clear preivous values before next statement is
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	801 // evaluated so that we aren't holding an extra
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	802 // reference to a value that may be used next. For
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	803 // example, in code like this:
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	804 //
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	805 // X = rand (N); ## refcount for X should be 1
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	806 // ## after this statement
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	807 //
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	808 // X(idx) = val; ## no extra copy of X should be
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	809 // ## needed, but we will be faked
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	810 // ## out if retval is not cleared
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	811 // ## between statements here
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	812
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	813 // result_values = empty_list;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	814 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	815 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	816 else
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	817 error ("invalid statement found in statement list!");
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	818 }
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	819 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	820 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	821
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	822 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	823 tree_evaluator::visit_switch_case (tree_switch_case&)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	824 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	825 panic_impossible ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	826 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	827
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	828 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	829 tree_evaluator::visit_switch_case_list (tree_switch_case_list&)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	830 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	831 panic_impossible ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	832 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	833
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	834 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	835 tree_evaluator::visit_switch_command (tree_switch_command& cmd)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	836 {
10836 6abf966379de pt-eval.cc: process breakpoints for if and switch commands John W. Eaton <jwe@octave.org> parents: 10578 diff changeset	837 if (debug_mode)
6abf966379de pt-eval.cc: process breakpoints for if and switch commands John W. Eaton <jwe@octave.org> parents: 10578 diff changeset	838 do_breakpoint (cmd.is_breakpoint ());
6abf966379de pt-eval.cc: process breakpoints for if and switch commands John W. Eaton <jwe@octave.org> parents: 10578 diff changeset	839
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	840 tree_expression *expr = cmd.switch_value ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	841
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	842 if (expr)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	843 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	844 octave_value val = expr->rvalue1 ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	845
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	846 tree_switch_case_list *lst = cmd.case_list ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	847
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	848 if (! error_state && lst)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	849 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	850 for (tree_switch_case_list::iterator p = lst->begin ();
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	851 p != lst->end (); p++)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	852 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	853 tree_switch_case t = p;
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	854
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	855 if (debug_mode && ! t->is_default_case ())
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	856 do_breakpoint (t->is_breakpoint ());
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	857
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	858 if (t->is_default_case () \|\| t->label_matches (val))
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	859 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	860 if (error_state)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	861 break;
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	862
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	863 tree_statement_list *stmt_lst = t->commands ();
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	864
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	865 if (stmt_lst)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	866 stmt_lst->accept (*this);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	867
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	868 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	869 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	870 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	871 }
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	872 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	873 else
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	874 ::error ("missing value in switch command near line %d, column %d",
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	875 cmd.line (), cmd.column ());
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	876 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	877
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	878 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	879 tree_evaluator::visit_try_catch_command (tree_try_catch_command& cmd)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	880 {
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	881 unwind_protect frame;
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	882
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	883 frame.protect_var (buffer_error_messages);
2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	884 frame.protect_var (Vdebug_on_error);
2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	885 frame.protect_var (Vdebug_on_warning);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	886
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	887 buffer_error_messages++;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	888 Vdebug_on_error = false;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	889 Vdebug_on_warning = false;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	890
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	891 tree_statement_list *catch_code = cmd.cleanup ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	892
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	893 // The catch code is not added to unwind_protect stack; it doesn't need
2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	894 // to be run on interrupts.
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	895
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	896 tree_statement_list *try_code = cmd.body ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	897
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	898 if (try_code)
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	899 {
2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	900 try_code->accept (*this);
2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	901 // FIXME: should std::bad_alloc be handled here?
2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	902 }
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	903
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	904 if (error_state)
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	905 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	906 error_state = 0;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	907
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	908 if (catch_code)
2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	909 {
2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	910 // Set up for letting the user print any messages from errors that
2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	911 // occurred in the body of the try_catch statement.
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	912
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	913 buffer_error_messages--;
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	914
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	915 if (catch_code)
2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	916 catch_code->accept (*this);
2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	917 }
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	918 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	919 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	920
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	921 void
2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	922 tree_evaluator::do_unwind_protect_cleanup_code (tree_statement_list *list)
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	923 {
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	924 unwind_protect frame;
2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	925
2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	926 frame.protect_var (octave_interrupt_state);
9383 d57f0c56195f improve error handling Jaroslav Hajek <highegg@gmail.com> parents: 9378 diff changeset	927 octave_interrupt_state = 0;
d57f0c56195f improve error handling Jaroslav Hajek <highegg@gmail.com> parents: 9378 diff changeset	928
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	929 // We want to run the cleanup code without error_state being set,
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	930 // but we need to restore its value, so that any errors encountered
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	931 // in the first part of the unwind_protect are not completely
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	932 // ignored.
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	933
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	934 frame.protect_var (error_state);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	935 error_state = 0;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	936
10210 752f349052a2 ensure correct backtraces after error in unwind_protect Jaroslav Hajek <highegg@gmail.com> parents: 10194 diff changeset	937 // We want to preserve the last statement indicator for possible
752f349052a2 ensure correct backtraces after error in unwind_protect Jaroslav Hajek <highegg@gmail.com> parents: 10194 diff changeset	938 // backtracking.
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	939 frame.add_fcn (octave_call_stack::set_statement,
10210 752f349052a2 ensure correct backtraces after error in unwind_protect Jaroslav Hajek <highegg@gmail.com> parents: 10194 diff changeset	940 octave_call_stack::current_statement ());
752f349052a2 ensure correct backtraces after error in unwind_protect Jaroslav Hajek <highegg@gmail.com> parents: 10194 diff changeset	941
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	942 // Similarly, if we have seen a return or break statement, allow all
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	943 // the cleanup code to run before returning or handling the break.
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	944 // We don't have to worry about continue statements because they can
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	945 // only occur in loops.
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	946
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	947 frame.protect_var (tree_return_command::returning);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	948 tree_return_command::returning = 0;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	949
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	950 frame.protect_var (tree_break_command::breaking);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	951 tree_break_command::breaking = 0;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	952
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	953 if (list)
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	954 list->accept (*this);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	955
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	956 // The unwind_protects are popped off the stack in the reverse of
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	957 // the order they are pushed on.
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	958
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	959 // FIXME -- these statements say that if we see a break or
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	960 // return statement in the cleanup block, that we want to use the
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	961 // new value of the breaking or returning flag instead of restoring
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	962 // the previous value. Is that the right thing to do? I think so.
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	963 // Consider the case of
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	964 //
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	965 // function foo ()
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	966 // unwind_protect
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	967 // stderr << "1: this should always be executed\n";
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	968 // break;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	969 // stderr << "1: this should never be executed\n";
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	970 // unwind_protect_cleanup
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	971 // stderr << "2: this should always be executed\n";
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	972 // return;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	973 // stderr << "2: this should never be executed\n";
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	974 // end_unwind_protect
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	975 // endfunction
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	976 //
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	977 // If we reset the value of the breaking flag, both the returning
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	978 // flag and the breaking flag will be set, and we shouldn't have
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	979 // both. So, use the most recent one. If there is no return or
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	980 // break in the cleanup block, the values should be reset to
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	981 // whatever they were when the cleanup block was entered.
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	982
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	983 if (tree_break_command::breaking \|\| tree_return_command::returning)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	984 {
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	985 frame.discard_top (2);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	986 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	987 else
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	988 {
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	989 frame.run_top (2);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	990 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	991
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	992 // We don't want to ignore errors that occur in the cleanup code, so
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	993 // if an error is encountered there, leave error_state alone.
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	994 // Otherwise, set it back to what it was before.
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	995
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	996 if (error_state)
10210 752f349052a2 ensure correct backtraces after error in unwind_protect Jaroslav Hajek <highegg@gmail.com> parents: 10194 diff changeset	997 frame.discard_top (2);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	998 else
10210 752f349052a2 ensure correct backtraces after error in unwind_protect Jaroslav Hajek <highegg@gmail.com> parents: 10194 diff changeset	999 frame.run_top (2);
9418 f008a3a1bcb0 add missing unwind_protect::run in pt-eval.cc Jaroslav Hajek <highegg@gmail.com> parents: 9396 diff changeset	1000
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	1001 frame.run ();
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1002 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1003
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1004 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1005 tree_evaluator::visit_unwind_protect_command (tree_unwind_protect_command& cmd)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1006 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1007 tree_statement_list *cleanup_code = cmd.cleanup ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1008
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1009 tree_statement_list *unwind_protect_code = cmd.body ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1010
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1011 if (unwind_protect_code)
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	1012 {
2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	1013 try
2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	1014 {
2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	1015 unwind_protect_code->accept (*this);
2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	1016 }
2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	1017 catch (...)
2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	1018 {
2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	1019 // Run the cleanup code on exceptions, so that it is run even in case
2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	1020 // of interrupt or out-of-memory.
2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	1021 do_unwind_protect_cleanup_code (cleanup_code);
2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	1022 // FIXME: should error_state be checked here?
2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	1023 // We want to rethrow the exception, even if error_state is set, so
2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	1024 // that interrupts continue.
2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	1025 throw;
2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	1026 }
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1027
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	1028 do_unwind_protect_cleanup_code (cleanup_code);
2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	1029 }
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1030 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1031
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1032 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1033 tree_evaluator::visit_while_command (tree_while_command& cmd)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1034 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1035 if (error_state)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1036 return;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1037
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	1038 unwind_protect frame;
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1039
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	1040 frame.protect_var (in_loop_command);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1041
8669 33783e94fb16 line number fixes and other evaluator tweaks John W. Eaton <jwe@octave.org> parents: 8662 diff changeset	1042 in_loop_command = true;
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1043
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1044 tree_expression *expr = cmd.condition ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1045
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1046 if (! expr)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1047 panic_impossible ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1048
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1049 for (;;)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1050 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1051 if (debug_mode)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	1052 do_breakpoint (cmd.is_breakpoint ());
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1053
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1054 if (expr->is_logically_true ("while"))
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	1055 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	1056 tree_statement_list *loop_body = cmd.body ();
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1057
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	1058 if (loop_body)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	1059 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	1060 loop_body->accept (*this);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1061
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	1062 if (error_state)
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	1063 return;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	1064 }
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1065
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	1066 if (quit_loop_now ())
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	1067 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	1068 }
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1069 else
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	1070 break;
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1071 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1072 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1073
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1074 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1075 tree_evaluator::visit_do_until_command (tree_do_until_command& cmd)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1076 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1077 if (error_state)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1078 return;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1079
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	1080 unwind_protect frame;
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1081
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	1082 frame.protect_var (in_loop_command);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1083
8669 33783e94fb16 line number fixes and other evaluator tweaks John W. Eaton <jwe@octave.org> parents: 8662 diff changeset	1084 in_loop_command = true;
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1085
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1086 tree_expression *expr = cmd.condition ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1087
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1088 if (! expr)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1089 panic_impossible ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1090
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1091 for (;;)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1092 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1093 tree_statement_list *loop_body = cmd.body ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1094
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1095 if (loop_body)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	1096 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	1097 loop_body->accept (*this);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1098
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	1099 if (error_state)
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9494 diff changeset	1100 return;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	1101 }
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1102
8845 5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	1103 if (quit_loop_now ())
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	1104 break;
8845 5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	1105
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1106 if (debug_mode)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	1107 do_breakpoint (cmd.is_breakpoint ());
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1108
8845 5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	1109 if (expr->is_logically_true ("do-until"))
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	1110 break;
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1111 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1112 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1113
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1114 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1115 tree_evaluator::do_breakpoint (tree_statement& stmt) const
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1116 {
9484 bbe033dcfe13 make dbwhere work when called at keyboard prompt John W. Eaton <jwe@octave.org> parents: 9418 diff changeset	1117 do_breakpoint (stmt.is_breakpoint (), stmt.is_end_of_fcn_or_script ());
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1118 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1119
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1120 void
9484 bbe033dcfe13 make dbwhere work when called at keyboard prompt John W. Eaton <jwe@octave.org> parents: 9418 diff changeset	1121 tree_evaluator::do_breakpoint (bool is_breakpoint,
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	1122 bool is_end_of_fcn_or_script) const
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1123 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1124 bool break_on_this_statement = false;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1125
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1126 // Don't decrement break flag unless we are in the same frame as we
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1127 // were when we saw the "dbstep N" command.
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1128
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1129 if (dbstep_flag > 1)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1130 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1131 if (octave_call_stack::current_frame () == current_frame)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	1132 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	1133 // Don't allow dbstep N to step past end of current frame.
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1134
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	1135 if (is_end_of_fcn_or_script)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	1136 dbstep_flag = 1;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	1137 else
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	1138 dbstep_flag--;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	1139 }
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1140 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1141
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1142 if (octave_debug_on_interrupt_state)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1143 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1144 break_on_this_statement = true;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1145
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1146 octave_debug_on_interrupt_state = false;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1147
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1148 current_frame = octave_call_stack::current_frame ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1149 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1150 else if (is_breakpoint)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1151 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1152 break_on_this_statement = true;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1153
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1154 dbstep_flag = 0;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1155
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1156 current_frame = octave_call_stack::current_frame ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1157 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1158 else if (dbstep_flag == 1)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1159 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1160 if (octave_call_stack::current_frame () == current_frame)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	1161 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	1162 // We get here if we are doing a "dbstep" or a "dbstep N"
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	1163 // and the count has reached 1 and we are in the current
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	1164 // debugging frame.
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1165
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	1166 break_on_this_statement = true;
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1167
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	1168 dbstep_flag = 0;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	1169 }
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1170 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1171 else if (dbstep_flag == -1)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1172 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1173 // We get here if we are doing a "dbstep in".
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1174
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1175 break_on_this_statement = true;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1176
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1177 dbstep_flag = 0;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1178
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1179 current_frame = octave_call_stack::current_frame ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1180 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1181 else if (dbstep_flag == -2)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1182 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1183 // We get here if we are doing a "dbstep out".
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1184
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1185 if (is_end_of_fcn_or_script)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10219 diff changeset	1186 dbstep_flag = -1;
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1187 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1188
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1189 if (break_on_this_statement)
9484 bbe033dcfe13 make dbwhere work when called at keyboard prompt John W. Eaton <jwe@octave.org> parents: 9418 diff changeset	1190 do_keyboard ();
10219 979fb2606c4f new tree_evaluator::do_keyoard function Ryan Rusaw <rrusaw@gmail.com> parents: 10210 diff changeset	1191
979fb2606c4f new tree_evaluator::do_keyoard function Ryan Rusaw <rrusaw@gmail.com> parents: 10210 diff changeset	1192 }
979fb2606c4f new tree_evaluator::do_keyoard function Ryan Rusaw <rrusaw@gmail.com> parents: 10210 diff changeset	1193
979fb2606c4f new tree_evaluator::do_keyoard function Ryan Rusaw <rrusaw@gmail.com> parents: 10210 diff changeset	1194 // ARGS is currently unused, but since the do_keyboard function in
979fb2606c4f new tree_evaluator::do_keyoard function Ryan Rusaw <rrusaw@gmail.com> parents: 10210 diff changeset	1195 // input.cc accepts an argument list, we preserve it here so that the
979fb2606c4f new tree_evaluator::do_keyoard function Ryan Rusaw <rrusaw@gmail.com> parents: 10210 diff changeset	1196 // interface won't have to change if we decide to use it in the future.
979fb2606c4f new tree_evaluator::do_keyoard function Ryan Rusaw <rrusaw@gmail.com> parents: 10210 diff changeset	1197
979fb2606c4f new tree_evaluator::do_keyoard function Ryan Rusaw <rrusaw@gmail.com> parents: 10210 diff changeset	1198 octave_value
979fb2606c4f new tree_evaluator::do_keyoard function Ryan Rusaw <rrusaw@gmail.com> parents: 10210 diff changeset	1199 tree_evaluator::do_keyboard (const octave_value_list& args) const
979fb2606c4f new tree_evaluator::do_keyoard function Ryan Rusaw <rrusaw@gmail.com> parents: 10210 diff changeset	1200 {
979fb2606c4f new tree_evaluator::do_keyoard function Ryan Rusaw <rrusaw@gmail.com> parents: 10210 diff changeset	1201 return ::do_keyboard (args);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1202 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1203
10578 cb0883127251 limit on recursion via calls to source function John W. Eaton <jwe@octave.org> parents: 10315 diff changeset	1204 DEFUN (max_recursion_depth, args, nargout,
cb0883127251 limit on recursion via calls to source function John W. Eaton <jwe@octave.org> parents: 10315 diff changeset	1205 "-- texinfo --\n\
10840 89f4d7e294cc Grammarcheck .cc files Rik <octave@nomad.inbox5.com> parents: 10839 diff changeset	1206 @deftypefn {Built-in Function} {@var{val} =} max_recursion_depth ()\n\
10578 cb0883127251 limit on recursion via calls to source function John W. Eaton <jwe@octave.org> parents: 10315 diff changeset	1207 @deftypefnx {Built-in Function} {@var{old_val} =} max_recursion_depth (@var{new_val})\n\
cb0883127251 limit on recursion via calls to source function John W. Eaton <jwe@octave.org> parents: 10315 diff changeset	1208 Query or set the internal limit on the number of times a function may\n\
cb0883127251 limit on recursion via calls to source function John W. Eaton <jwe@octave.org> parents: 10315 diff changeset	1209 be called recursively. If the limit is exceeded, an error message is\n\
cb0883127251 limit on recursion via calls to source function John W. Eaton <jwe@octave.org> parents: 10315 diff changeset	1210 printed and control returns to the top level.\n\
cb0883127251 limit on recursion via calls to source function John W. Eaton <jwe@octave.org> parents: 10315 diff changeset	1211 @end deftypefn")
cb0883127251 limit on recursion via calls to source function John W. Eaton <jwe@octave.org> parents: 10315 diff changeset	1212 {
cb0883127251 limit on recursion via calls to source function John W. Eaton <jwe@octave.org> parents: 10315 diff changeset	1213 return SET_INTERNAL_VARIABLE (max_recursion_depth);
cb0883127251 limit on recursion via calls to source function John W. Eaton <jwe@octave.org> parents: 10315 diff changeset	1214 }
cb0883127251 limit on recursion via calls to source function John W. Eaton <jwe@octave.org> parents: 10315 diff changeset	1215
12833 9f0f2c226053 codesprint: new tests for functions in pt-eval.cc John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	1216 /*
9f0f2c226053 codesprint: new tests for functions in pt-eval.cc John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	1217 %!error (max_recursion_depth (1, 2));
9f0f2c226053 codesprint: new tests for functions in pt-eval.cc John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	1218 %!test
9f0f2c226053 codesprint: new tests for functions in pt-eval.cc John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	1219 %! orig_val = max_recursion_depth ();
9f0f2c226053 codesprint: new tests for functions in pt-eval.cc John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	1220 %! old_val = max_recursion_depth (2*orig_val);
9f0f2c226053 codesprint: new tests for functions in pt-eval.cc John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	1221 %! assert (orig_val, old_val);
9f0f2c226053 codesprint: new tests for functions in pt-eval.cc John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	1222 %! assert (max_recursion_depth (), 2*orig_val);
9f0f2c226053 codesprint: new tests for functions in pt-eval.cc John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	1223 %! max_recursion_depth (orig_val);
9f0f2c226053 codesprint: new tests for functions in pt-eval.cc John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	1224 %! assert (max_recursion_depth (), orig_val);
9f0f2c226053 codesprint: new tests for functions in pt-eval.cc John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	1225 */
9f0f2c226053 codesprint: new tests for functions in pt-eval.cc John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	1226
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1227 DEFUN (silent_functions, args, nargout,
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1228 "-- texinfo --\n\
10840 89f4d7e294cc Grammarcheck .cc files Rik <octave@nomad.inbox5.com> parents: 10839 diff changeset	1229 @deftypefn {Built-in Function} {@var{val} =} silent_functions ()\n\
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1230 @deftypefnx {Built-in Function} {@var{old_val} =} silent_functions (@var{new_val})\n\
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1231 Query or set the internal variable that controls whether internal\n\
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1232 output from a function is suppressed. If this option is disabled,\n\
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1233 Octave will display the results produced by evaluating expressions\n\
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1234 within a function body that are not terminated with a semicolon.\n\
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1235 @end deftypefn")
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1236 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1237 return SET_INTERNAL_VARIABLE (silent_functions);
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1238 }
12833 9f0f2c226053 codesprint: new tests for functions in pt-eval.cc John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	1239
9f0f2c226053 codesprint: new tests for functions in pt-eval.cc John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	1240 /*
9f0f2c226053 codesprint: new tests for functions in pt-eval.cc John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	1241 %!error (silent_functions (1, 2));
9f0f2c226053 codesprint: new tests for functions in pt-eval.cc John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	1242 %!test
9f0f2c226053 codesprint: new tests for functions in pt-eval.cc John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	1243 %! orig_val = silent_functions ();
9f0f2c226053 codesprint: new tests for functions in pt-eval.cc John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	1244 %! old_val = silent_functions (! orig_val);
9f0f2c226053 codesprint: new tests for functions in pt-eval.cc John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	1245 %! assert (orig_val, old_val);
9f0f2c226053 codesprint: new tests for functions in pt-eval.cc John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	1246 %! assert (silent_functions (), ! orig_val);
9f0f2c226053 codesprint: new tests for functions in pt-eval.cc John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	1247 %! silent_functions (orig_val);
9f0f2c226053 codesprint: new tests for functions in pt-eval.cc John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	1248 %! assert (silent_functions (), orig_val);
9f0f2c226053 codesprint: new tests for functions in pt-eval.cc John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	1249 */

Mercurial > octave-antonio

annotate src/pt-eval.cc @ 13225:359153d26cc1