Mercurial > octave

annotate libinterp/parse-tree/pt-binop.h @ 30564:796f54d4ddbf stable

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
update Octave Project Developers copyright for the new year In files that have the "Octave Project Developers" copyright notice, update for 2021. In all .txi and .texi files except gpl.txi and gpl.texi in the doc/liboctave and doc/interpreter directories, change the copyright to "Octave Project Developers", the same as used for other source files. Update copyright notices for 2022 (not done since 2019). For gpl.txi and gpl.texi, change the copyright notice to be "Free Software Foundation, Inc." and leave the date at 2007 only because this file only contains the text of the GPL, not anything created by the Octave Project Developers. Add Paul Thomas to contributors.in.
author John W. Eaton <jwe@octave.org>
date Tue, 28 Dec 2021 18:22:40 -0500
parents 0a5b15007766
children 83f9f8bda883
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
27923
bd51beb6205e update formatting of copyright notices
John W. Eaton <jwe@octave.org>
parents: 27919
diff changeset
1 ////////////////////////////////////////////////////////////////////////
bd51beb6205e update formatting of copyright notices
John W. Eaton <jwe@octave.org>
parents: 27919
diff changeset
2 //
30564
796f54d4ddbf update Octave Project Developers copyright for the new year
John W. Eaton <jwe@octave.org>
parents: 29358
diff changeset
3 // Copyright (C) 1996-2022 The Octave Project Developers
27923
bd51beb6205e update formatting of copyright notices
John W. Eaton <jwe@octave.org>
parents: 27919
diff changeset
4 //
bd51beb6205e update formatting of copyright notices
John W. Eaton <jwe@octave.org>
parents: 27919
diff changeset
5 // See the file COPYRIGHT.md in the top-level directory of this
bd51beb6205e update formatting of copyright notices
John W. Eaton <jwe@octave.org>
parents: 27919
diff changeset
6 // distribution or <https://octave.org/copyright/>.
bd51beb6205e update formatting of copyright notices
John W. Eaton <jwe@octave.org>
parents: 27919
diff changeset
7 //
bd51beb6205e update formatting of copyright notices
John W. Eaton <jwe@octave.org>
parents: 27919
diff changeset
8 // This file is part of Octave.
bd51beb6205e update formatting of copyright notices
John W. Eaton <jwe@octave.org>
parents: 27919
diff changeset
9 //
bd51beb6205e update formatting of copyright notices
John W. Eaton <jwe@octave.org>
parents: 27919
diff changeset
10 // Octave is free software: you can redistribute it and/or modify it
bd51beb6205e update formatting of copyright notices
John W. Eaton <jwe@octave.org>
parents: 27919
diff changeset
11 // under the terms of the GNU General Public License as published by
bd51beb6205e update formatting of copyright notices
John W. Eaton <jwe@octave.org>
parents: 27919
diff changeset
12 // the Free Software Foundation, either version 3 of the License, or
bd51beb6205e update formatting of copyright notices
John W. Eaton <jwe@octave.org>
parents: 27919
diff changeset
13 // (at your option) any later version.
bd51beb6205e update formatting of copyright notices
John W. Eaton <jwe@octave.org>
parents: 27919
diff changeset
14 //
bd51beb6205e update formatting of copyright notices
John W. Eaton <jwe@octave.org>
parents: 27919
diff changeset
15 // Octave is distributed in the hope that it will be useful, but
bd51beb6205e update formatting of copyright notices
John W. Eaton <jwe@octave.org>
parents: 27919
diff changeset
16 // WITHOUT ANY WARRANTY; without even the implied warranty of
bd51beb6205e update formatting of copyright notices
John W. Eaton <jwe@octave.org>
parents: 27919
diff changeset
17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
bd51beb6205e update formatting of copyright notices
John W. Eaton <jwe@octave.org>
parents: 27919
diff changeset
18 // GNU General Public License for more details.
bd51beb6205e update formatting of copyright notices
John W. Eaton <jwe@octave.org>
parents: 27919
diff changeset
19 //
bd51beb6205e update formatting of copyright notices
John W. Eaton <jwe@octave.org>
parents: 27919
diff changeset
20 // You should have received a copy of the GNU General Public License
bd51beb6205e update formatting of copyright notices
John W. Eaton <jwe@octave.org>
parents: 27919
diff changeset
21 // along with Octave; see the file COPYING. If not, see
bd51beb6205e update formatting of copyright notices
John W. Eaton <jwe@octave.org>
parents: 27919
diff changeset
22 // <https://www.gnu.org/licenses/>.
bd51beb6205e update formatting of copyright notices
John W. Eaton <jwe@octave.org>
parents: 27919
diff changeset
23 //
bd51beb6205e update formatting of copyright notices
John W. Eaton <jwe@octave.org>
parents: 27919
diff changeset
24 ////////////////////////////////////////////////////////////////////////
2980
cd5ad3fd8049 [project @ 1997-05-16 01:12:13 by jwe]
jwe
parents:
diff changeset
25
20791
f7084eae3318 maint: Use Octave coding conventions for #if statements.
Rik <rik@octave.org>
parents: 19697
diff changeset
26 #if ! defined (octave_pt_binop_h)
17822
ebb3ef964372 maint: Use common #define syntax "octave_filename_h" in h_files.
Rik <rik@octave.org>
parents: 17787
diff changeset
27 #define octave_pt_binop_h 1
2980
cd5ad3fd8049 [project @ 1997-05-16 01:12:13 by jwe]
jwe
parents:
diff changeset
28
21244
1473547f50f5 include octave-config.h in public header files
John W. Eaton <jwe@octave.org>
parents: 20791
diff changeset
29 #include "octave-config.h"
1473547f50f5 include octave-config.h in public header files
John W. Eaton <jwe@octave.org>
parents: 20791
diff changeset
30
2980
cd5ad3fd8049 [project @ 1997-05-16 01:12:13 by jwe]
jwe
parents:
diff changeset
31 #include <string>
cd5ad3fd8049 [project @ 1997-05-16 01:12:13 by jwe]
jwe
parents:
diff changeset
32
cd5ad3fd8049 [project @ 1997-05-16 01:12:13 by jwe]
jwe
parents:
diff changeset
33 class octave_value;
cd5ad3fd8049 [project @ 1997-05-16 01:12:13 by jwe]
jwe
parents:
diff changeset
34 class octave_value_list;
cd5ad3fd8049 [project @ 1997-05-16 01:12:13 by jwe]
jwe
parents:
diff changeset
35
cd5ad3fd8049 [project @ 1997-05-16 01:12:13 by jwe]
jwe
parents:
diff changeset
36 #include "ov.h"
cd5ad3fd8049 [project @ 1997-05-16 01:12:13 by jwe]
jwe
parents:
diff changeset
37 #include "pt-exp.h"
23435
c452180ab672 begin refactoring parse tree evaluator
John W. Eaton <jwe@octave.org>
parents: 23424
diff changeset
38 #include "pt-walk.h"
2980
cd5ad3fd8049 [project @ 1997-05-16 01:12:13 by jwe]
jwe
parents:
diff changeset
39
23075
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
40 namespace octave
2980
cd5ad3fd8049 [project @ 1997-05-16 01:12:13 by jwe]
jwe
parents:
diff changeset
41 {
24362
3fc24b792a24 avoid including symtab.h, symscope.h, or symrec.h unnecessarily
John W. Eaton <jwe@octave.org>
parents: 24270
diff changeset
42 class symbol_scope;
3fc24b792a24 avoid including symtab.h, symscope.h, or symrec.h unnecessarily
John W. Eaton <jwe@octave.org>
parents: 24270
diff changeset
43
23075
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
44 // Binary expressions.
2980
cd5ad3fd8049 [project @ 1997-05-16 01:12:13 by jwe]
jwe
parents:
diff changeset
45
23075
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
46 class tree_binary_expression : public tree_expression
17787
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17744
diff changeset
47 {
23075
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
48 public:
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
49
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
50 tree_binary_expression (int l = -1, int c = -1,
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
51 octave_value::binary_op t
10313
f3b65e1ae355 untabify src header files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
52 = octave_value::unknown_binary_op)
24846
7620f1f5290d use m_ prefix for member variables in parse tree classes
John W. Eaton <jwe@octave.org>
parents: 24534
diff changeset
53 : tree_expression (l, c), m_lhs (nullptr), m_rhs (nullptr), m_etype (t),
7620f1f5290d use m_ prefix for member variables in parse tree classes
John W. Eaton <jwe@octave.org>
parents: 24534
diff changeset
54 m_eligible_for_braindead_shortcircuit (false),
7620f1f5290d use m_ prefix for member variables in parse tree classes
John W. Eaton <jwe@octave.org>
parents: 24534
diff changeset
55 m_braindead_shortcircuit_warning_issued (false) { }
2980
cd5ad3fd8049 [project @ 1997-05-16 01:12:13 by jwe]
jwe
parents:
diff changeset
56
23075
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
57 tree_binary_expression (tree_expression *a, tree_expression *b,
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
58 int l = -1, int c = -1,
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
59 octave_value::binary_op t
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
60 = octave_value::unknown_binary_op)
24846
7620f1f5290d use m_ prefix for member variables in parse tree classes
John W. Eaton <jwe@octave.org>
parents: 24534
diff changeset
61 : tree_expression (l, c), m_lhs (a), m_rhs (b), m_etype (t),
7620f1f5290d use m_ prefix for member variables in parse tree classes
John W. Eaton <jwe@octave.org>
parents: 24534
diff changeset
62 m_eligible_for_braindead_shortcircuit (false),
7620f1f5290d use m_ prefix for member variables in parse tree classes
John W. Eaton <jwe@octave.org>
parents: 24534
diff changeset
63 m_braindead_shortcircuit_warning_issued (false) { }
22869
f75d289645ec make deleted functions public
John W. Eaton <jwe@octave.org>
parents: 22868
diff changeset
64
23075
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
65 // No copying!
11091
5677f3f7b5fa Matlab compatible short-circuit behavior for & and | operators
John W. Eaton <jwe@octave.org>
parents: 10313
diff changeset
66
23075
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
67 tree_binary_expression (const tree_binary_expression&) = delete;
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
68
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
69 tree_binary_expression& operator = (const tree_binary_expression&) = delete;
2980
cd5ad3fd8049 [project @ 1997-05-16 01:12:13 by jwe]
jwe
parents:
diff changeset
70
23075
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
71 ~tree_binary_expression (void)
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
72 {
24846
7620f1f5290d use m_ prefix for member variables in parse tree classes
John W. Eaton <jwe@octave.org>
parents: 24534
diff changeset
73 delete m_lhs;
7620f1f5290d use m_ prefix for member variables in parse tree classes
John W. Eaton <jwe@octave.org>
parents: 24534
diff changeset
74 delete m_rhs;
23075
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
75 }
11091
5677f3f7b5fa Matlab compatible short-circuit behavior for & and | operators
John W. Eaton <jwe@octave.org>
parents: 10313
diff changeset
76
23075
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
77 void mark_braindead_shortcircuit (void)
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
78 {
24846
7620f1f5290d use m_ prefix for member variables in parse tree classes
John W. Eaton <jwe@octave.org>
parents: 24534
diff changeset
79 if (m_etype == octave_value::op_el_and || m_etype == octave_value::op_el_or)
23075
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
80 {
24846
7620f1f5290d use m_ prefix for member variables in parse tree classes
John W. Eaton <jwe@octave.org>
parents: 24534
diff changeset
81 m_eligible_for_braindead_shortcircuit = true;
4267
7cd865a8c815 [project @ 2003-01-03 15:27:05 by jwe]
jwe
parents: 4192
diff changeset
82
24846
7620f1f5290d use m_ prefix for member variables in parse tree classes
John W. Eaton <jwe@octave.org>
parents: 24534
diff changeset
83 m_lhs->mark_braindead_shortcircuit ();
7620f1f5290d use m_ prefix for member variables in parse tree classes
John W. Eaton <jwe@octave.org>
parents: 24534
diff changeset
84 m_rhs->mark_braindead_shortcircuit ();
23075
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
85 }
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
86 }
2980
cd5ad3fd8049 [project @ 1997-05-16 01:12:13 by jwe]
jwe
parents:
diff changeset
87
23075
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
88 bool is_binary_expression (void) const { return true; }
2980
cd5ad3fd8049 [project @ 1997-05-16 01:12:13 by jwe]
jwe
parents:
diff changeset
89
23075
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
90 bool rvalue_ok (void) const { return true; }
5861
2a6cb4ed8f1e [project @ 2006-06-16 05:09:41 by jwe]
jwe
parents: 5307
diff changeset
91
23075
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
92 std::string oper (void) const;
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
93
24846
7620f1f5290d use m_ prefix for member variables in parse tree classes
John W. Eaton <jwe@octave.org>
parents: 24534
diff changeset
94 octave_value::binary_op op_type (void) const { return m_etype; }
2980
cd5ad3fd8049 [project @ 1997-05-16 01:12:13 by jwe]
jwe
parents:
diff changeset
95
24846
7620f1f5290d use m_ prefix for member variables in parse tree classes
John W. Eaton <jwe@octave.org>
parents: 24534
diff changeset
96 tree_expression * lhs (void) { return m_lhs; }
7620f1f5290d use m_ prefix for member variables in parse tree classes
John W. Eaton <jwe@octave.org>
parents: 24534
diff changeset
97 tree_expression * rhs (void) { return m_rhs; }
2980
cd5ad3fd8049 [project @ 1997-05-16 01:12:13 by jwe]
jwe
parents:
diff changeset
98
23435
c452180ab672 begin refactoring parse tree evaluator
John W. Eaton <jwe@octave.org>
parents: 23424
diff changeset
99 bool is_eligible_for_braindead_shortcircuit (void) const
c452180ab672 begin refactoring parse tree evaluator
John W. Eaton <jwe@octave.org>
parents: 23424
diff changeset
100 {
24846
7620f1f5290d use m_ prefix for member variables in parse tree classes
John W. Eaton <jwe@octave.org>
parents: 24534
diff changeset
101 return m_eligible_for_braindead_shortcircuit;
23435
c452180ab672 begin refactoring parse tree evaluator
John W. Eaton <jwe@octave.org>
parents: 23424
diff changeset
102 }
c452180ab672 begin refactoring parse tree evaluator
John W. Eaton <jwe@octave.org>
parents: 23424
diff changeset
103
24270
bc3819b7cca1 don't use symbol_table:: nesting for symbol_record, symbol_scope, or fcn_info
John W. Eaton <jwe@octave.org>
parents: 23795
diff changeset
104 tree_expression * dup (symbol_scope& scope) const;
2988
daa1ed1f5462 [project @ 1997-05-16 07:23:15 by jwe]
jwe
parents: 2980
diff changeset
105
27371
fcaecdbc8d8a don't use visitor pattern for expression evaluation (bug #56752)
John W. Eaton <jwe@octave.org>
parents: 26377
diff changeset
106 octave_value evaluate (tree_evaluator&, int nargout = 1);
fcaecdbc8d8a don't use visitor pattern for expression evaluation (bug #56752)
John W. Eaton <jwe@octave.org>
parents: 26377
diff changeset
107
fcaecdbc8d8a don't use visitor pattern for expression evaluation (bug #56752)
John W. Eaton <jwe@octave.org>
parents: 26377
diff changeset
108 octave_value_list evaluate_n (tree_evaluator& tw, int nargout = 1)
fcaecdbc8d8a don't use visitor pattern for expression evaluation (bug #56752)
John W. Eaton <jwe@octave.org>
parents: 26377
diff changeset
109 {
fcaecdbc8d8a don't use visitor pattern for expression evaluation (bug #56752)
John W. Eaton <jwe@octave.org>
parents: 26377
diff changeset
110 return ovl (evaluate (tw, nargout));
fcaecdbc8d8a don't use visitor pattern for expression evaluation (bug #56752)
John W. Eaton <jwe@octave.org>
parents: 26377
diff changeset
111 }
fcaecdbc8d8a don't use visitor pattern for expression evaluation (bug #56752)
John W. Eaton <jwe@octave.org>
parents: 26377
diff changeset
112
23435
c452180ab672 begin refactoring parse tree evaluator
John W. Eaton <jwe@octave.org>
parents: 23424
diff changeset
113 void accept (tree_walker& tw)
c452180ab672 begin refactoring parse tree evaluator
John W. Eaton <jwe@octave.org>
parents: 23424
diff changeset
114 {
c452180ab672 begin refactoring parse tree evaluator
John W. Eaton <jwe@octave.org>
parents: 23424
diff changeset
115 tw.visit_binary_expression (*this);
c452180ab672 begin refactoring parse tree evaluator
John W. Eaton <jwe@octave.org>
parents: 23424
diff changeset
116 }
2980
cd5ad3fd8049 [project @ 1997-05-16 01:12:13 by jwe]
jwe
parents:
diff changeset
117
23075
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
118 std::string profiler_name (void) const { return "binary " + oper (); }
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
119
23435
c452180ab672 begin refactoring parse tree evaluator
John W. Eaton <jwe@octave.org>
parents: 23424
diff changeset
120 void matlab_style_short_circuit_warning (const char *op);
c452180ab672 begin refactoring parse tree evaluator
John W. Eaton <jwe@octave.org>
parents: 23424
diff changeset
121
23075
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
122 protected:
11091
5677f3f7b5fa Matlab compatible short-circuit behavior for & and | operators
John W. Eaton <jwe@octave.org>
parents: 10313
diff changeset
123
23075
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
124 // The operands for the expression.
24846
7620f1f5290d use m_ prefix for member variables in parse tree classes
John W. Eaton <jwe@octave.org>
parents: 24534
diff changeset
125 tree_expression *m_lhs;
7620f1f5290d use m_ prefix for member variables in parse tree classes
John W. Eaton <jwe@octave.org>
parents: 24534
diff changeset
126 tree_expression *m_rhs;
18127
d76f790b4eec enable do_braindead_shortcircuit_evaluation by default and deprecate
John W. Eaton <jwe@octave.org>
parents: 17822
diff changeset
127
23075
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
128 private:
2988
daa1ed1f5462 [project @ 1997-05-16 07:23:15 by jwe]
jwe
parents: 2980
diff changeset
129
23075
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
130 // The type of the expression.
24846
7620f1f5290d use m_ prefix for member variables in parse tree classes
John W. Eaton <jwe@octave.org>
parents: 24534
diff changeset
131 octave_value::binary_op m_etype;
2980
cd5ad3fd8049 [project @ 1997-05-16 01:12:13 by jwe]
jwe
parents:
diff changeset
132
23075
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
133 // TRUE if this is an | or & expression in the condition of an IF
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
134 // or WHILE statement.
24846
7620f1f5290d use m_ prefix for member variables in parse tree classes
John W. Eaton <jwe@octave.org>
parents: 24534
diff changeset
135 bool m_eligible_for_braindead_shortcircuit;
2980
cd5ad3fd8049 [project @ 1997-05-16 01:12:13 by jwe]
jwe
parents:
diff changeset
136
23075
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
137 // TRUE if we have already issued a warning about short circuiting
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
138 // for this operator.
24846
7620f1f5290d use m_ prefix for member variables in parse tree classes
John W. Eaton <jwe@octave.org>
parents: 24534
diff changeset
139 bool m_braindead_shortcircuit_warning_issued;
17787
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17744
diff changeset
140 };
2980
cd5ad3fd8049 [project @ 1997-05-16 01:12:13 by jwe]
jwe
parents:
diff changeset
141
23075
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
142 // Boolean expressions.
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
143
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
144 class tree_boolean_expression : public tree_binary_expression
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
145 {
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
146 public:
2980
cd5ad3fd8049 [project @ 1997-05-16 01:12:13 by jwe]
jwe
parents:
diff changeset
147
23075
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
148 enum type
25103
078b795c5219 maint: style check C++ ahead of 4.4 release.
Rik <rik@octave.org>
parents: 25054
diff changeset
149 {
078b795c5219 maint: style check C++ ahead of 4.4 release.
Rik <rik@octave.org>
parents: 25054
diff changeset
150 unknown,
078b795c5219 maint: style check C++ ahead of 4.4 release.
Rik <rik@octave.org>
parents: 25054
diff changeset
151 bool_and,
078b795c5219 maint: style check C++ ahead of 4.4 release.
Rik <rik@octave.org>
parents: 25054
diff changeset
152 bool_or
078b795c5219 maint: style check C++ ahead of 4.4 release.
Rik <rik@octave.org>
parents: 25054
diff changeset
153 };
2980
cd5ad3fd8049 [project @ 1997-05-16 01:12:13 by jwe]
jwe
parents:
diff changeset
154
23075
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
155 tree_boolean_expression (int l = -1, int c = -1, type t = unknown)
24846
7620f1f5290d use m_ prefix for member variables in parse tree classes
John W. Eaton <jwe@octave.org>
parents: 24534
diff changeset
156 : tree_binary_expression (l, c), m_etype (t) { }
2980
cd5ad3fd8049 [project @ 1997-05-16 01:12:13 by jwe]
jwe
parents:
diff changeset
157
23075
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
158 tree_boolean_expression (tree_expression *a, tree_expression *b,
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
159 int l = -1, int c = -1, type t = unknown)
24846
7620f1f5290d use m_ prefix for member variables in parse tree classes
John W. Eaton <jwe@octave.org>
parents: 24534
diff changeset
160 : tree_binary_expression (a, b, l, c), m_etype (t) { }
4023
ef3caf27cb9c [project @ 2002-08-07 06:54:41 by jwe]
jwe
parents: 3933
diff changeset
161
23075
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
162 // No copying!
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
163
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
164 tree_boolean_expression (const tree_boolean_expression&) = delete;
2980
cd5ad3fd8049 [project @ 1997-05-16 01:12:13 by jwe]
jwe
parents:
diff changeset
165
23075
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
166 tree_boolean_expression& operator = (const tree_boolean_expression&) = delete;
2980
cd5ad3fd8049 [project @ 1997-05-16 01:12:13 by jwe]
jwe
parents:
diff changeset
167
23075
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
168 ~tree_boolean_expression (void) = default;
2980
cd5ad3fd8049 [project @ 1997-05-16 01:12:13 by jwe]
jwe
parents:
diff changeset
169
23075
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
170 bool is_boolean_expression (void) const { return true; }
2980
cd5ad3fd8049 [project @ 1997-05-16 01:12:13 by jwe]
jwe
parents:
diff changeset
171
23075
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
172 bool rvalue_ok (void) const { return true; }
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
173
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
174 std::string oper (void) const;
5861
2a6cb4ed8f1e [project @ 2006-06-16 05:09:41 by jwe]
jwe
parents: 5307
diff changeset
175
24846
7620f1f5290d use m_ prefix for member variables in parse tree classes
John W. Eaton <jwe@octave.org>
parents: 24534
diff changeset
176 type op_type (void) const { return m_etype; }
23075
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
177
24270
bc3819b7cca1 don't use symbol_table:: nesting for symbol_record, symbol_scope, or fcn_info
John W. Eaton <jwe@octave.org>
parents: 23795
diff changeset
178 tree_expression * dup (symbol_scope& scope) const;
2980
cd5ad3fd8049 [project @ 1997-05-16 01:12:13 by jwe]
jwe
parents:
diff changeset
179
27371
fcaecdbc8d8a don't use visitor pattern for expression evaluation (bug #56752)
John W. Eaton <jwe@octave.org>
parents: 26377
diff changeset
180 octave_value evaluate (tree_evaluator&, int nargout = 1);
fcaecdbc8d8a don't use visitor pattern for expression evaluation (bug #56752)
John W. Eaton <jwe@octave.org>
parents: 26377
diff changeset
181
fcaecdbc8d8a don't use visitor pattern for expression evaluation (bug #56752)
John W. Eaton <jwe@octave.org>
parents: 26377
diff changeset
182 octave_value_list evaluate_n (tree_evaluator& tw, int nargout = 1)
fcaecdbc8d8a don't use visitor pattern for expression evaluation (bug #56752)
John W. Eaton <jwe@octave.org>
parents: 26377
diff changeset
183 {
fcaecdbc8d8a don't use visitor pattern for expression evaluation (bug #56752)
John W. Eaton <jwe@octave.org>
parents: 26377
diff changeset
184 return ovl (evaluate (tw, nargout));
fcaecdbc8d8a don't use visitor pattern for expression evaluation (bug #56752)
John W. Eaton <jwe@octave.org>
parents: 26377
diff changeset
185 }
fcaecdbc8d8a don't use visitor pattern for expression evaluation (bug #56752)
John W. Eaton <jwe@octave.org>
parents: 26377
diff changeset
186
23435
c452180ab672 begin refactoring parse tree evaluator
John W. Eaton <jwe@octave.org>
parents: 23424
diff changeset
187 void accept (tree_walker& tw)
c452180ab672 begin refactoring parse tree evaluator
John W. Eaton <jwe@octave.org>
parents: 23424
diff changeset
188 {
c452180ab672 begin refactoring parse tree evaluator
John W. Eaton <jwe@octave.org>
parents: 23424
diff changeset
189 tw.visit_boolean_expression (*this);
c452180ab672 begin refactoring parse tree evaluator
John W. Eaton <jwe@octave.org>
parents: 23424
diff changeset
190 }
23424
872f42fb26dc let walker visit tree_boolean and tree_compound_binary expressions directly
John W. Eaton <jwe@octave.org>
parents: 23220
diff changeset
191
23075
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
192 private:
2988
daa1ed1f5462 [project @ 1997-05-16 07:23:15 by jwe]
jwe
parents: 2980
diff changeset
193
23075
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
194 // The type of the expression.
24846
7620f1f5290d use m_ prefix for member variables in parse tree classes
John W. Eaton <jwe@octave.org>
parents: 24534
diff changeset
195 type m_etype;
23075
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
196 };
4e3d47dc7e25 move parse tree classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22869
diff changeset
197 }
2988
daa1ed1f5462 [project @ 1997-05-16 07:23:15 by jwe]
jwe
parents: 2980
diff changeset
198
2980
cd5ad3fd8049 [project @ 1997-05-16 01:12:13 by jwe]
jwe
parents:
diff changeset
199 #endif