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

annotate src/pt-eval.cc @ 8874:bd1b1fe9c6e9 ss-3-1-53

bump version info for snapshot

author	John W. Eaton <jwe@octave.org>
date	Wed, 25 Feb 2009 18:35:47 -0500
parents	4d812facab0e
children	f26e0f00ce01

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
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	3 Copyright (C) 2009 John W. Eaton
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
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	34 #include "defun.h"
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	35 #include "error.h"
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	36 #include "gripes.h"
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	37 #include "input.h"
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	38 #include "ov-fcn-handle.h"
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	39 #include "ov-usr-fcn.h"
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	40 #include "variables.h"
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	41 #include "pt-all.h"
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	42 #include "pt-eval.h"
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	43 #include "symtab.h"
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	44 #include "unwind-prot.h"
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	45
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	46 static tree_evaluator std_evaluator;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	47
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	48 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	49
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	50 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	51
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	52 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	53
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	54 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	55
8669 33783e94fb16 line number fixes and other evaluator tweaks John W. Eaton <jwe@octave.org> parents: 8662 diff changeset	56 bool tree_evaluator::in_fcn_or_script_body = false;
33783e94fb16 line number fixes and other evaluator tweaks John W. Eaton <jwe@octave.org> parents: 8662 diff changeset	57
33783e94fb16 line number fixes and other evaluator tweaks John W. Eaton <jwe@octave.org> parents: 8662 diff changeset	58 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	59
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	60 int tree_evaluator::db_line = -1;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	61 int tree_evaluator::db_column = -1;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	62
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	63 // 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	64 // 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	65 static bool Vsilent_functions = false;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	66
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	67 // Normal evaluator.
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	68
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	69 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	70 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	71 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	72 panic_impossible ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	73 }
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 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	76 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	77 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	78 panic_impossible ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	79 }
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 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	82 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	83 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	84 panic_impossible ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	85 }
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 void
8845 5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	88 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	89 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	90 if (! error_state)
8845 5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	91 {
5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	92 if (debug_mode)
5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	93 do_breakpoint (cmd.is_breakpoint (), cmd.line (), cmd.column ());
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 tree_break_command::breaking = 1;
5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	96 }
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	97 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	98
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	99 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	100 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	101 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	102 panic_impossible ();
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
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	105 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	106 tree_evaluator::visit_continue_command (tree_continue_command&)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	107 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	108 if (! error_state)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	109 tree_continue_command::continuing = 1;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	110 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	111
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	112 static inline void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	113 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	114 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	115 tree_identifier *id = elt.ident ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	116
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	117 if (id)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	118 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	119 id->mark_global ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	120
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	121 if (! error_state)
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 octave_lvalue ult = id->lvalue ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	124
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	125 if (ult.is_undefined ())
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	126 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	127 tree_expression *expr = elt.expression ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	128
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	129 octave_value init_val;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	130
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	131 if (expr)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	132 init_val = expr->rvalue1 ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	133 else
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	134 init_val = Matrix ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	135
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	136 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	137 }
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 }
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
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	142 static inline void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	143 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	144 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	145 tree_identifier *id = elt.ident ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	146
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	147 if (id)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	148 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	149 id->mark_as_static ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	150
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	151 octave_lvalue ult = id->lvalue ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	152
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	153 if (ult.is_undefined ())
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	154 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	155 tree_expression *expr = elt.expression ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	156
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	157 octave_value init_val;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	158
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	159 if (expr)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	160 init_val = expr->rvalue1 ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	161 else
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	162 init_val = Matrix ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	163
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	164 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	165 }
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 }
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 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	170 tree_evaluator::do_decl_init_list (decl_elt_init_fcn fcn,
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	171 tree_decl_init_list *init_list)
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 (init_list)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	174 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	175 for (tree_decl_init_list::iterator p = init_list->begin ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	176 p != init_list->end (); p++)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	177 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	178 tree_decl_elt elt = p;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	179
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	180 fcn (*elt);
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	181
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	182 if (error_state)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	183 break;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	184 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	185 }
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 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	189 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	190 {
8845 5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	191 if (debug_mode)
5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	192 do_breakpoint (cmd.is_breakpoint (), cmd.line (), cmd.column ());
5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	193
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	194 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	195 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	196
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	197 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	198 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	199 {
8845 5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	200 if (debug_mode)
5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	201 do_breakpoint (cmd.is_breakpoint (), cmd.line (), cmd.column ());
5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	202
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	203 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	204 }
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 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	207 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	208 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	209 panic_impossible ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	210 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	211
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	212 #if 0
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	213 bool
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	214 tree_decl_elt::eval (void)
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 bool retval = false;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	217
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	218 if (id && expr)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	219 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	220 octave_lvalue ult = id->lvalue ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	221
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	222 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	223
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	224 if (! error_state)
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 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	227
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	228 retval = true;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	229 }
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 return retval;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	233 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	234 #endif
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 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	237 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	238 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	239 panic_impossible ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	240 }
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 // 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	243 static inline bool
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	244 quit_loop_now (void)
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 OCTAVE_QUIT;
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 // Maybe handle `continue N' someday...
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 if (tree_continue_command::continuing)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	251 tree_continue_command::continuing--;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	252
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	253 bool quit = (error_state
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	254 \|\| tree_return_command::returning
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	255 \|\| tree_break_command::breaking
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	256 \|\| tree_continue_command::continuing);
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	257
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	258 if (tree_break_command::breaking)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	259 tree_break_command::breaking--;
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 return quit;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	262 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	263
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	264 #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	265 do \
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	266 { \
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	267 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	268 \
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	269 if (! error_state && loop_body) \
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	270 loop_body->accept (*this); \
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	271 \
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	272 quit = quit_loop_now (); \
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	273 } \
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	274 while (0)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	275
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	276 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	277 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	278 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	279 if (error_state)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	280 return;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	281
8845 5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	282 if (debug_mode)
5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	283 do_breakpoint (cmd.is_breakpoint (), cmd.line (), cmd.column ());
5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	284
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	285 unwind_protect::begin_frame ("tree_evaluator::visit_simple_for_command");
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	286
8669 33783e94fb16 line number fixes and other evaluator tweaks John W. Eaton <jwe@octave.org> parents: 8662 diff changeset	287 unwind_protect_bool (in_loop_command);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	288
8669 33783e94fb16 line number fixes and other evaluator tweaks John W. Eaton <jwe@octave.org> parents: 8662 diff changeset	289 in_loop_command = true;
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	290
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	291 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	292
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	293 octave_value rhs = expr->rvalue1 ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	294
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	295 if (error_state \|\| rhs.is_undefined ())
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	296 goto cleanup;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	297
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 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	300
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	301 octave_lvalue ult = lhs->lvalue ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	302
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	303 if (error_state)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	304 goto cleanup;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	305
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	306 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	307
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	308 if (rhs.is_range ())
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	309 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	310 Range rng = rhs.range_value ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	311
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	312 octave_idx_type steps = rng.nelem ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	313 double b = rng.base ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	314 double increment = rng.inc ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	315 bool quit = false;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	316
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	317 for (octave_idx_type i = 0; i < steps; i++)
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 // Use multiplication here rather than declaring a
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	320 // temporary variable outside the loop and using
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	321 //
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	322 // tmp_val += increment
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	323 //
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	324 // to avoid problems with limited precision. Also, this
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	325 // is consistent with the way Range::matrix_value is
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	326 // implemented.
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 octave_value val (b + i * increment);
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	329
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	330 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	331
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	332 if (quit)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	333 break;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	334 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	335 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	336 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	337 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	338 bool quit = false;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	339
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	340 DO_SIMPLE_FOR_LOOP_ONCE (rhs);
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	341 }
8662 af72c8137d64 improve looping over arrays Jaroslav Hajek <highegg@gmail.com> parents: 8658 diff changeset	342 else if (rhs.is_matrix_type ()
af72c8137d64 improve looping over arrays Jaroslav Hajek <highegg@gmail.com> parents: 8658 diff changeset	343 \|\| rhs.is_cell () \|\| rhs.is_string ())
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	344 {
8662 af72c8137d64 improve looping over arrays Jaroslav Hajek <highegg@gmail.com> parents: 8658 diff changeset	345 // 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	346 // columns.
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	347
8662 af72c8137d64 improve looping over arrays Jaroslav Hajek <highegg@gmail.com> parents: 8658 diff changeset	348 bool quit = false;
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	349
8662 af72c8137d64 improve looping over arrays Jaroslav Hajek <highegg@gmail.com> parents: 8658 diff changeset	350 dim_vector dv = rhs.dims ().redim (2);
af72c8137d64 improve looping over arrays Jaroslav Hajek <highegg@gmail.com> parents: 8658 diff changeset	351
8679 280fae940bb0 optimize scalar indexing Jaroslav Hajek <highegg@gmail.com> parents: 8677 diff changeset	352 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	353
8662 af72c8137d64 improve looping over arrays Jaroslav Hajek <highegg@gmail.com> parents: 8658 diff changeset	354 if (steps > 0)
af72c8137d64 improve looping over arrays Jaroslav Hajek <highegg@gmail.com> parents: 8658 diff changeset	355 {
af72c8137d64 improve looping over arrays Jaroslav Hajek <highegg@gmail.com> parents: 8658 diff changeset	356 octave_value arg = rhs;
af72c8137d64 improve looping over arrays Jaroslav Hajek <highegg@gmail.com> parents: 8658 diff changeset	357 if (rhs.ndims () > 2)
af72c8137d64 improve looping over arrays Jaroslav Hajek <highegg@gmail.com> parents: 8658 diff changeset	358 arg = arg.reshape (dv);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	359
8679 280fae940bb0 optimize scalar indexing Jaroslav Hajek <highegg@gmail.com> parents: 8677 diff changeset	360 // for row vectors, use single index to speed things up.
280fae940bb0 optimize scalar indexing Jaroslav Hajek <highegg@gmail.com> parents: 8677 diff changeset	361 octave_value_list idx;
280fae940bb0 optimize scalar indexing Jaroslav Hajek <highegg@gmail.com> parents: 8677 diff changeset	362 octave_idx_type iidx;
280fae940bb0 optimize scalar indexing Jaroslav Hajek <highegg@gmail.com> parents: 8677 diff changeset	363 if (nrows == 1)
280fae940bb0 optimize scalar indexing Jaroslav Hajek <highegg@gmail.com> parents: 8677 diff changeset	364 {
280fae940bb0 optimize scalar indexing Jaroslav Hajek <highegg@gmail.com> parents: 8677 diff changeset	365 idx.resize (1);
280fae940bb0 optimize scalar indexing Jaroslav Hajek <highegg@gmail.com> parents: 8677 diff changeset	366 iidx = 0;
280fae940bb0 optimize scalar indexing Jaroslav Hajek <highegg@gmail.com> parents: 8677 diff changeset	367 }
280fae940bb0 optimize scalar indexing Jaroslav Hajek <highegg@gmail.com> parents: 8677 diff changeset	368 else
280fae940bb0 optimize scalar indexing Jaroslav Hajek <highegg@gmail.com> parents: 8677 diff changeset	369 {
280fae940bb0 optimize scalar indexing Jaroslav Hajek <highegg@gmail.com> parents: 8677 diff changeset	370 idx.resize (2);
280fae940bb0 optimize scalar indexing Jaroslav Hajek <highegg@gmail.com> parents: 8677 diff changeset	371 idx(0) = octave_value::magic_colon_t;
280fae940bb0 optimize scalar indexing Jaroslav Hajek <highegg@gmail.com> parents: 8677 diff changeset	372 iidx = 1;
280fae940bb0 optimize scalar indexing Jaroslav Hajek <highegg@gmail.com> parents: 8677 diff changeset	373 }
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 for (octave_idx_type i = 1; i <= steps; i++)
af72c8137d64 improve looping over arrays Jaroslav Hajek <highegg@gmail.com> parents: 8658 diff changeset	376 {
af72c8137d64 improve looping over arrays Jaroslav Hajek <highegg@gmail.com> parents: 8658 diff changeset	377 // do_index_op expects one-based indices.
8679 280fae940bb0 optimize scalar indexing Jaroslav Hajek <highegg@gmail.com> parents: 8677 diff changeset	378 idx(iidx) = i;
8662 af72c8137d64 improve looping over arrays Jaroslav Hajek <highegg@gmail.com> parents: 8658 diff changeset	379 octave_value val = arg.do_index_op (idx);
af72c8137d64 improve looping over arrays Jaroslav Hajek <highegg@gmail.com> parents: 8658 diff changeset	380 DO_SIMPLE_FOR_LOOP_ONCE (val);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	381
8662 af72c8137d64 improve looping over arrays Jaroslav Hajek <highegg@gmail.com> parents: 8658 diff changeset	382 if (quit)
af72c8137d64 improve looping over arrays Jaroslav Hajek <highegg@gmail.com> parents: 8658 diff changeset	383 break;
af72c8137d64 improve looping over arrays Jaroslav Hajek <highegg@gmail.com> parents: 8658 diff changeset	384 }
af72c8137d64 improve looping over arrays Jaroslav Hajek <highegg@gmail.com> parents: 8658 diff changeset	385 }
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	386 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	387 else if (rhs.is_map ())
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	388 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	389 Octave_map tmp_val (rhs.map_value ());
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	390
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	391 bool quit = false;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	392
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	393 for (Octave_map::iterator p = tmp_val.begin ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	394 p != tmp_val.end ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	395 p++)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	396 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	397 Cell val_lst = tmp_val.contents (p);
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	398
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	399 octave_value val
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	400 = (val_lst.length () == 1) ? val_lst(0) : octave_value (val_lst);
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	401
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	402 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	403
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	404 if (quit)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	405 break;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	406 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	407 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	408 else
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	409 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	410 ::error ("invalid type in for loop expression near line %d, column %d",
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	411 cmd.line (), cmd.column ());
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	412 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	413 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	414
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	415 cleanup:
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	416 unwind_protect::run_frame ("tree_evaluator::visit_simple_for_command");
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
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	419 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	420 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	421 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	422 if (error_state)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	423 return;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	424
8845 5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	425 if (debug_mode)
5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	426 do_breakpoint (cmd.is_breakpoint (), cmd.line (), cmd.column ());
5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	427
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	428 unwind_protect::begin_frame ("tree_evaluator::visit_complex_for_command");
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	429
8669 33783e94fb16 line number fixes and other evaluator tweaks John W. Eaton <jwe@octave.org> parents: 8662 diff changeset	430 unwind_protect_bool (in_loop_command);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	431
8669 33783e94fb16 line number fixes and other evaluator tweaks John W. Eaton <jwe@octave.org> parents: 8662 diff changeset	432 in_loop_command = true;
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	433
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	434 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	435
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	436 octave_value rhs = expr->rvalue1 ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	437
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	438 if (error_state \|\| rhs.is_undefined ())
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	439 goto cleanup;
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 if (rhs.is_map ())
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 // 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	444 // 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	445 // structure element.
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	446
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	447 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	448
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	449 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	450
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	451 tree_expression elt = p++;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	452
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	453 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	454
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	455 elt = *p;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	456
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	457 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	458
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	459 Octave_map tmp_val (rhs.map_value ());
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	460
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	461 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	462
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	463 for (Octave_map::iterator q = tmp_val.begin (); q != tmp_val.end (); q++)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	464 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	465 octave_value key = tmp_val.key (q);
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	466
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	467 Cell val_lst = tmp_val.contents (q);
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	468
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	469 octave_idx_type n = tmp_val.numel ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	470
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	471 octave_value val = (n == 1) ? val_lst(0) : octave_value (val_lst);
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	472
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	473 val_ref.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	474 key_ref.assign (octave_value::op_asn_eq, key);
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	475
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	476 if (! error_state && loop_body)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	477 loop_body->accept (*this);
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	478
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	479 if (quit_loop_now ())
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	480 break;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	481 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	482 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	483 else
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	484 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	485
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	486 cleanup:
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	487 unwind_protect::run_frame ("tree_evaluator::visit_complex_for_command");
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	488 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	489
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	490 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	491 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	492 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	493 panic_impossible ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	494 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	495
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	496 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	497 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	498 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	499 panic_impossible ();
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
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	502 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	503 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	504 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	505 panic_impossible ();
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
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	508 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	509 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	510 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	511 panic_impossible ();
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
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	514 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	515 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	516 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	517 octave_value fcn = cmd.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 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	520
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	521 if (f)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	522 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	523 std::string nm = f->name ();
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 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	526
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	527 // 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	528 // function is cleared.
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	529
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	530 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	531 }
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
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	534 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	535 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	536 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	537 panic_impossible ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	538 }
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 void
8677 095ae5e0a831 eliminte some compiler warnings John W. Eaton <jwe@octave.org> parents: 8669 diff changeset	541 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	542 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	543 panic_impossible ();
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
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	546 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	547 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	548 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	549 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	550
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	551 if (lst)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	552 lst->accept (*this);
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
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	555 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	556 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	557 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	558 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	559 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	560 tree_if_clause tic = p;
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 tree_expression *expr = tic->condition ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	563
8845 5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	564 if (debug_mode && ! tic->is_else_clause ())
5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	565 do_breakpoint (tic->is_breakpoint (), tic->line (), tic->column ());
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	566
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	567 if (tic->is_else_clause () \|\| expr->is_logically_true ("if"))
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 if (! error_state)
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_statement_list *stmt_lst = tic->commands ();
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 if (stmt_lst)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	574 stmt_lst->accept (*this);
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	575 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	576
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	577 break;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	578 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	579 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	580 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	581
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	582 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	583 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	584 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	585 panic_impossible ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	586 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	587
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	588 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	589 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	590 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	591 panic_impossible ();
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
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	594 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	595 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	596 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	597 panic_impossible ();
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
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	600 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	601 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	602 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	603 panic_impossible ();
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
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	606 void
8845 5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	607 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	608 {
8845 5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	609 if (debug_mode && cmd.is_end_of_fcn_or_script ())
5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	610 do_breakpoint (cmd.is_breakpoint (), cmd.line (), cmd.column (), true);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	611 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	612
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	613 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	614 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	615 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	616 panic_impossible ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	617 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	618
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	619 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	620 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	621 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	622 panic_impossible ();
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
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	625 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	626 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	627 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	628 panic_impossible ();
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
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	631 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	632 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	633 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	634 panic_impossible ();
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
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	637 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	638 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	639 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	640 panic_impossible ();
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
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	643 void
8845 5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	644 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	645 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	646 if (! error_state)
8845 5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	647 {
5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	648 if (debug_mode)
5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	649 do_breakpoint (cmd.is_breakpoint (), cmd.line (), cmd.column ());
5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	650
5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	651 tree_return_command::returning = 1;
5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	652 }
8658 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
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	655 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	656 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	657 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	658 panic_impossible ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	659 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	660
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	661 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	662 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	663 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	664 panic_impossible ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	665 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	666
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	667 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	668 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	669 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	670 tree_command *cmd = stmt.command ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	671 tree_expression *expr = stmt.expression ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	672
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	673 if (cmd \|\| expr)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	674 {
8669 33783e94fb16 line number fixes and other evaluator tweaks John W. Eaton <jwe@octave.org> parents: 8662 diff changeset	675 if (in_fcn_or_script_body)
33783e94fb16 line number fixes and other evaluator tweaks John W. Eaton <jwe@octave.org> parents: 8662 diff changeset	676 {
33783e94fb16 line number fixes and other evaluator tweaks John W. Eaton <jwe@octave.org> parents: 8662 diff changeset	677 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	678
8669 33783e94fb16 line number fixes and other evaluator tweaks John W. Eaton <jwe@octave.org> parents: 8662 diff changeset	679 if (Vecho_executing_commands & ECHO_FUNCTIONS)
33783e94fb16 line number fixes and other evaluator tweaks John W. Eaton <jwe@octave.org> parents: 8662 diff changeset	680 stmt.echo_code ();
33783e94fb16 line number fixes and other evaluator tweaks John W. Eaton <jwe@octave.org> parents: 8662 diff changeset	681 }
8658 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 try
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	684 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	685 if (cmd)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	686 cmd->accept (*this);
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	687 else
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	688 {
8845 5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	689 if (debug_mode)
5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	690 do_breakpoint (expr->is_breakpoint (), expr->line (),
5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	691 expr->column ());
5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	692
8669 33783e94fb16 line number fixes and other evaluator tweaks John W. Eaton <jwe@octave.org> parents: 8662 diff changeset	693 if (in_fcn_or_script_body && Vsilent_functions)
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	694 expr->set_print_flag (false);
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	695
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	696 // FIXME -- maybe all of this should be packaged in
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	697 // one virtual function that returns a flag saying whether
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	698 // or not the expression will take care of binding ans and
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	699 // printing the result.
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	700
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	701 // FIXME -- it seems that we should just have to
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	702 // call expr->rvalue1 () and that should take care of
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	703 // everything, binding ans as necessary?
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	704
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	705 bool do_bind_ans = false;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	706
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	707 if (expr->is_identifier ())
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	708 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	709 tree_identifier id = dynamic_cast<tree_identifier > (expr);
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	710
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	711 do_bind_ans = (! id->is_variable ());
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	712 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	713 else
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	714 do_bind_ans = (! expr->is_assignment_expression ());
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	715
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	716 octave_value tmp_result = expr->rvalue1 (0);
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	717
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	718 if (do_bind_ans && ! (error_state \|\| tmp_result.is_undefined ()))
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	719 bind_ans (tmp_result, expr->print_result ());
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	720
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	721 // if (tmp_result.is_defined ())
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	722 // result_values(0) = tmp_result;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	723 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	724 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	725 catch (octave_execution_exception)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	726 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	727 gripe_library_execution_error ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	728 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	729 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	730 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	731
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	732 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	733 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	734 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	735 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	736
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	737 if (error_state)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	738 return;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	739
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	740 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	741
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	742 if (p != lst.end ())
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	743 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	744 while (true)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	745 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	746 tree_statement elt = p++;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	747
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	748 if (elt)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	749 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	750 OCTAVE_QUIT;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	751
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	752 elt->accept (*this);
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	753
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	754 if (error_state)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	755 break;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	756
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	757 if (tree_break_command::breaking
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	758 \|\| tree_continue_command::continuing)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	759 break;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	760
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	761 if (tree_return_command::returning)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	762 break;
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 if (p == lst.end ())
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	765 break;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	766 else
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	767 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	768 // Clear preivous values before next statement is
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	769 // evaluated so that we aren't holding an extra
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	770 // reference to a value that may be used next. For
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	771 // example, in code like this:
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	772 //
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	773 // X = rand (N); ## refcount for X should be 1
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	774 // ## after this statement
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 // X(idx) = val; ## no extra copy of X should be
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	777 // ## needed, but we will be faked
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	778 // ## out if retval is not cleared
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	779 // ## between statements here
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	780
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	781 // result_values = empty_list;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	782 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	783 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	784 else
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	785 error ("invalid statement found in statement list!");
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	786 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	787 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	788 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	789
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	790 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	791 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	792 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	793 panic_impossible ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	794 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	795
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	796 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	797 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	798 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	799 panic_impossible ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	800 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	801
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	802 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	803 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	804 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	805 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	806
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	807 if (expr)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	808 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	809 octave_value val = expr->rvalue1 ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	810
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	811 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	812
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	813 if (! error_state && lst)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	814 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	815 for (tree_switch_case_list::iterator p = lst->begin ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	816 p != lst->end (); p++)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	817 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	818 tree_switch_case t = p;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	819
8845 5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	820 if (debug_mode && ! t->is_default_case ())
5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	821 do_breakpoint (t->is_breakpoint (), t->line (), t->column ());
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	822
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	823 if (t->is_default_case () \|\| t->label_matches (val))
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 if (error_state)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	826 break;
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 tree_statement_list *stmt_lst = t->commands ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	829
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	830 if (stmt_lst)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	831 stmt_lst->accept (*this);
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 break;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	834 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	835 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	836 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	837 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	838 else
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	839 ::error ("missing value in switch command near line %d, column %d",
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	840 cmd.line (), cmd.column ());
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
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	843 static void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	844 do_catch_code (void *ptr)
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 // Is it safe to call OCTAVE_QUIT here? We are already running
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	847 // something on the unwind_protect stack, but the element for this
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	848 // action would have already been popped from the top of the stack,
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	849 // so we should not be attempting to run it again.
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	850
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	851 OCTAVE_QUIT;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	852
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	853 // If we are interrupting immediately, or if an interrupt is in
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	854 // progress (octave_interrupt_state < 0), then we don't want to run
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	855 // the catch code (it should only run on errors, not interrupts).
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	856
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	857 // If octave_interrupt_state is positive, an interrupt is pending.
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	858 // The only way that could happen would be for the interrupt to
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	859 // come in after the OCTAVE_QUIT above and before the if statement
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	860 // below -- it's possible, but unlikely. In any case, we should
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	861 // probably let the catch code throw the exception because we don't
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	862 // want to skip that and potentially run some other code. For
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	863 // example, an error may have originally brought us here for some
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	864 // cleanup operation and we shouldn't skip that.
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	865
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	866 if (octave_interrupt_immediately \|\| octave_interrupt_state < 0)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	867 return;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	868
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	869 tree_statement_list list = static_cast<tree_statement_list > (ptr);
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	870
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	871 // Set up for letting the user print any messages from errors that
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	872 // occurred in the body of the try_catch statement.
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	873
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	874 buffer_error_messages--;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	875
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	876 if (list)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	877 list->accept (*current_evaluator);
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	878 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	879
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	880 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	881 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	882 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	883 unwind_protect::begin_frame ("tree_evaluator::visit_try_catch_command");
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	884
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	885 unwind_protect_int (buffer_error_messages);
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	886 unwind_protect_bool (Vdebug_on_error);
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	887 unwind_protect_bool (Vdebug_on_warning);
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	888
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	889 buffer_error_messages++;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	890 Vdebug_on_error = false;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	891 Vdebug_on_warning = false;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	892
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	893 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	894
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	895 unwind_protect::add (do_catch_code, catch_code);
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	896
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	897 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	898
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	899 if (try_code)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	900 try_code->accept (*this);
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	901
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	902 if (catch_code && error_state)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	903 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	904 error_state = 0;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	905 unwind_protect::run_frame ("tree_evaluator::visit_try_catch_command");
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	906 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	907 else
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	908 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	909 error_state = 0;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	910
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	911 // Unwind stack elements must be cleared or run in the reverse
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	912 // order in which they were added to the stack.
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	913
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	914 // For clearing the do_catch_code cleanup function.
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	915 unwind_protect::discard ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	916
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	917 // For restoring Vdebug_on_warning, Vdebug_on_error, and
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	918 // buffer_error_messages.
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	919 unwind_protect::run ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	920 unwind_protect::run ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	921 unwind_protect::run ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	922
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	923 // Also clear the frame marker.
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	924 unwind_protect::discard ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	925 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	926 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	927
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	928 static void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	929 do_unwind_protect_cleanup_code (void *ptr)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	930 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	931 tree_statement_list list = static_cast<tree_statement_list > (ptr);
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	932
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	933 // 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	934 // 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	935 // 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	936 // ignored.
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	937
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	938 unwind_protect_int (error_state);
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	939 error_state = 0;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	940
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	941 // 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	942 // 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	943 // 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	944 // only occur in loops.
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	945
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	946 unwind_protect_int (tree_return_command::returning);
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	947 tree_return_command::returning = 0;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	948
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	949 unwind_protect_int (tree_break_command::breaking);
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	950 tree_break_command::breaking = 0;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	951
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	952 if (list)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	953 list->accept (*current_evaluator);
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	954
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	955 // 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	956 // 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	957
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	958 // 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	959 // 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	960 // 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	961 // 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	962 // Consider the case of
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	963 //
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	964 // function foo ()
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	965 // unwind_protect
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	966 // 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	967 // break;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	968 // 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	969 // unwind_protect_cleanup
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	970 // 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	971 // return;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	972 // 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	973 // end_unwind_protect
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	974 // endfunction
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	975 //
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	976 // 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	977 // 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	978 // 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	979 // 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	980 // 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	981
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	982 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	983 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	984 unwind_protect::discard ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	985 unwind_protect::discard ();
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 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	989 unwind_protect::run ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	990 unwind_protect::run ();
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
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	993 // 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	994 // 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	995 // 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	996
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	997 if (error_state)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	998 unwind_protect::discard ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	999 else
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1000 unwind_protect::run ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1001 }
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 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1004 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	1005 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1006 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	1007
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1008 unwind_protect::add (do_unwind_protect_cleanup_code, cleanup_code);
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1009
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1010 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	1011
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1012 if (unwind_protect_code)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1013 unwind_protect_code->accept (*this);
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1014
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1015 unwind_protect::run ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1016 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1017
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1018 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1019 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	1020 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1021 if (error_state)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1022 return;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1023
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1024 unwind_protect::begin_frame ("tree_evaluator::visit_while_command");
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1025
8669 33783e94fb16 line number fixes and other evaluator tweaks John W. Eaton <jwe@octave.org> parents: 8662 diff changeset	1026 unwind_protect_bool (in_loop_command);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1027
8669 33783e94fb16 line number fixes and other evaluator tweaks John W. Eaton <jwe@octave.org> parents: 8662 diff changeset	1028 in_loop_command = true;
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1029
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1030 tree_expression *expr = cmd.condition ();
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 if (! expr)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1033 panic_impossible ();
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 int l = expr->line ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1036 int c = expr->column ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1037
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1038 for (;;)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1039 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1040 if (debug_mode)
8845 5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	1041 do_breakpoint (cmd.is_breakpoint (), l, c);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1042
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1043 if (expr->is_logically_true ("while"))
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1044 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1045 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	1046
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1047 if (loop_body)
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 loop_body->accept (*this);
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 (error_state)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1052 goto cleanup;
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
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1055 if (quit_loop_now ())
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1056 break;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1057 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1058 else
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1059 break;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1060 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1061
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1062 cleanup:
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1063 unwind_protect::run_frame ("tree_evaluator::visit_while_command");
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1064 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1065
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1066 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1067 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	1068 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1069 if (error_state)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1070 return;
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 unwind_protect::begin_frame ("tree_evaluator::visit_do_until_command");
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1073
8669 33783e94fb16 line number fixes and other evaluator tweaks John W. Eaton <jwe@octave.org> parents: 8662 diff changeset	1074 unwind_protect_bool (in_loop_command);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1075
8669 33783e94fb16 line number fixes and other evaluator tweaks John W. Eaton <jwe@octave.org> parents: 8662 diff changeset	1076 in_loop_command = true;
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1077
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1078 tree_expression *expr = cmd.condition ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1079
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1080 if (! expr)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1081 panic_impossible ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1082
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1083 int l = expr->line ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1084 int c = expr->column ();
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 for (;;)
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 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	1089
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1090 if (loop_body)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1091 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1092 loop_body->accept (*this);
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1093
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1094 if (error_state)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1095 goto cleanup;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1096 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1097
8845 5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	1098 if (quit_loop_now ())
5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	1099 break;
5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	1100
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1101 if (debug_mode)
8845 5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	1102 do_breakpoint (cmd.is_breakpoint (), l, c);
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1103
8845 5a6db6bd1a02 eigs.cc (Feigs): fix handling of sigma arg John W. Eaton <jwe@octave.org> parents: 8679 diff changeset	1104 if (expr->is_logically_true ("do-until"))
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1105 break;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1106 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1107
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1108 cleanup:
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1109 unwind_protect::run_frame ("tree_evaluator::visit_do_until_command");
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1110 }
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 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1113 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	1114 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1115 do_breakpoint (stmt.is_breakpoint (), stmt.line (), stmt.column (),
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1116 stmt.is_end_of_fcn_or_script ());
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1117 }
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 void
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1120 tree_evaluator::do_breakpoint (bool is_breakpoint, int l, int c,
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1121 bool is_end_of_fcn_or_script) const
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1122 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1123 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	1124
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1125 // 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	1126 // 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	1127
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1128 if (dbstep_flag > 1)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1129 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1130 if (octave_call_stack::current_frame () == current_frame)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1131 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1132 // Don't allow dbstep N to step past end of current frame.
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1133
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1134 if (is_end_of_fcn_or_script)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1135 dbstep_flag = 1;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1136 else
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1137 dbstep_flag--;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1138 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1139 }
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 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	1142 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1143 break_on_this_statement = true;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1144
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1145 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	1146
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1147 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	1148 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1149 else if (is_breakpoint)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1150 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1151 break_on_this_statement = true;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1152
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1153 dbstep_flag = 0;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1154
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1155 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	1156 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1157 else if (dbstep_flag == 1)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1158 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1159 if (octave_call_stack::current_frame () == current_frame)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1160 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1161 // We get here if we are doing a "dbstep" or a "dbstep N"
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1162 // and the count has reached 1 and we are in the current
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1163 // debugging frame.
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1164
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1165 break_on_this_statement = true;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1166
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1167 dbstep_flag = 0;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1168 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1169 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1170 else if (dbstep_flag == -1)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1171 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1172 // 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	1173
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1174 break_on_this_statement = true;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1175
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1176 dbstep_flag = 0;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1177
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1178 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	1179 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1180 else if (dbstep_flag == -2)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1181 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1182 // 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	1183
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1184 if (is_end_of_fcn_or_script)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1185 dbstep_flag = -1;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1186 }
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 if (break_on_this_statement)
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1189 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1190 octave_function *xfcn = octave_call_stack::current ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1191
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1192 if (xfcn)
8868 4d812facab0e write debugging location info directly to std::cerr John W. Eaton <jwe@octave.org> parents: 8845 diff changeset	1193 std::cerr << xfcn->name () << ": ";
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1194
8868 4d812facab0e write debugging location info directly to std::cerr John W. Eaton <jwe@octave.org> parents: 8845 diff changeset	1195 std::cerr << "line " << l << ", " << "column " << c << std::endl;
8658 73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1196
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1197 db_line = l;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1198 db_column = c;
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1199
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1200 // FIXME -- probably we just want to print one line, not the
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1201 // entire statement, which might span many lines...
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 // tree_print_code tpc (octave_stdout);
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1204 // stmt.accept (tpc);
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1205
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1206 do_keyboard ();
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1207 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1208 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1209
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1210 DEFUN (silent_functions, args, nargout,
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1211 "-- texinfo --\n\
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1212 @deftypefn {Built-in Function} {@var{val} =} silent_functions ()\n\
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1213 @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	1214 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	1215 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	1216 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	1217 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	1218 @end deftypefn")
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1219 {
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1220 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	1221 }
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1222
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1223 /*
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1224 ;;; Local Variables: ***
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1225 ;;; mode: C++ ***
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1226 ;;; End: ***
73c4516fae10 New evaluator and debugger derived from tree-walker class John W. Eaton <jwe@octave.org> parents: diff changeset	1227 */

Mercurial > octave-nkf

annotate src/pt-eval.cc @ 8874:bd1b1fe9c6e9 ss-3-1-53