Mercurial > hg > octave-lyh
annotate libinterp/parse-tree/pt-id.cc @ 17520:cdeadf62663f
doc: Fix recommendation on where to put spaces around parens
| author | Jordi Gutiérrez Hermoso <jordigh@octave.org> |
|---|---|
| date | Thu, 26 Sep 2013 10:05:22 -0400 |
| parents | 302157614308 |
| children | 2ed5bc680c71 |
| rev | line source |
|---|---|
| 2887 | 1 /* |
| 2 | |
|
14138
72c96de7a403
maint: update copyright notices for 2012
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3 Copyright (C) 1996-2012 John W. Eaton |
| 2887 | 4 |
| 5 This file is part of Octave. | |
| 6 | |
| 7 Octave is free software; you can redistribute it and/or modify it | |
| 8 under the terms of the GNU General Public License as published by the | |
| 7016 | 9 Free Software Foundation; either version 3 of the License, or (at your |
| 10 option) any later version. | |
| 2887 | 11 |
| 12 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 15 for more details. | |
| 16 | |
| 17 You should have received a copy of the GNU General Public License | |
| 7016 | 18 along with Octave; see the file COPYING. If not, see |
| 19 <http://www.gnu.org/licenses/>. | |
| 2887 | 20 |
| 21 */ | |
| 22 | |
| 23 #ifdef HAVE_CONFIG_H | |
| 24 #include <config.h> | |
| 25 #endif | |
| 26 | |
| 27 #include "error.h" | |
| 28 #include "oct-obj.h" | |
| 2979 | 29 #include "oct-lvalue.h" |
| 2900 | 30 #include "pager.h" |
| 3770 | 31 #include "pt-bp.h" |
| 2887 | 32 #include "pt-const.h" |
|
15606
fb9dffe5fbfb
The silent_functions flag no longer modifies the parse tree
Max Brister <max@2bass.com>
parents:
15467
diff
changeset
|
33 #include "pt-eval.h" |
| 2887 | 34 #include "pt-id.h" |
| 35 #include "pt-walk.h" | |
| 2900 | 36 #include "symtab.h" |
| 2887 | 37 #include "utils.h" |
| 2956 | 38 #include "variables.h" |
| 2887 | 39 |
| 40 // Symbols from the symbol table. | |
| 41 | |
| 42 void | |
| 43 tree_identifier::eval_undefined_error (void) | |
| 44 { | |
| 45 int l = line (); | |
| 46 int c = column (); | |
| 47 | |
|
10443
34e51d4e199b
implement smart warnings about missing Matlab functionality
Jaroslav Hajek <highegg@gmail.com>
parents:
10315
diff
changeset
|
48 maybe_missing_function_hook (name ()); |
|
34e51d4e199b
implement smart warnings about missing Matlab functionality
Jaroslav Hajek <highegg@gmail.com>
parents:
10315
diff
changeset
|
49 if (error_state) |
|
34e51d4e199b
implement smart warnings about missing Matlab functionality
Jaroslav Hajek <highegg@gmail.com>
parents:
10315
diff
changeset
|
50 return; |
|
34e51d4e199b
implement smart warnings about missing Matlab functionality
Jaroslav Hajek <highegg@gmail.com>
parents:
10315
diff
changeset
|
51 |
| 2887 | 52 if (l == -1 && c == -1) |
|
14871
26c4ca9782b0
Give message id to undefined function error
Juan Pablo Carbajal <carbajal@ifi.uzh.ch>
parents:
14846
diff
changeset
|
53 ::error_with_id ("Octave:undefined-function", |
|
15467
049e8bbff782
maint: periodic merge of stable to default
John W. Eaton <jwe@octave.org>
diff
changeset
|
54 "'%s' undefined", name ().c_str ()); |
| 2887 | 55 else |
|
14871
26c4ca9782b0
Give message id to undefined function error
Juan Pablo Carbajal <carbajal@ifi.uzh.ch>
parents:
14846
diff
changeset
|
56 ::error_with_id ("Octave:undefined-function", |
|
15467
049e8bbff782
maint: periodic merge of stable to default
John W. Eaton <jwe@octave.org>
diff
changeset
|
57 "'%s' undefined near line %d column %d", |
|
14871
26c4ca9782b0
Give message id to undefined function error
Juan Pablo Carbajal <carbajal@ifi.uzh.ch>
parents:
14846
diff
changeset
|
58 name ().c_str (), l, c); |
| 2887 | 59 } |
| 60 | |
| 61 octave_value_list | |
|
16091
1785493171ac
pass lvalue_list to more subsref calls (bug #38374)
John W. Eaton <jwe@octave.org>
parents:
15606
diff
changeset
|
62 tree_identifier::rvalue (int nargout, |
|
1785493171ac
pass lvalue_list to more subsref calls (bug #38374)
John W. Eaton <jwe@octave.org>
parents:
15606
diff
changeset
|
63 const std::list<octave_lvalue> *lvalue_list) |
| 2887 | 64 { |
| 65 octave_value_list retval; | |
| 66 | |
| 67 if (error_state) | |
| 68 return retval; | |
| 69 | |
|
14912
3d3c002ccc60
Add symbol_table::symbol_record_ref
Max Brister <max@2bass.com>
parents:
14138
diff
changeset
|
70 octave_value val = sym->find (); |
| 2887 | 71 |
| 7336 | 72 if (val.is_defined ()) |
| 2887 | 73 { |
| 7336 | 74 // GAGME -- this would be cleaner if we required |
| 75 // parens to indicate function calls. | |
| 76 // | |
| 77 // If this identifier refers to a function, we need to know | |
| 78 // whether it is indexed so that we can do the same thing | |
|
15466
d174210ce1ec
use ' instead of ` in error messages, warnings and most comments
John W. Eaton <jwe@octave.org>
parents:
14138
diff
changeset
|
79 // for 'f' and 'f()'. If the index is present, return the |
| 7336 | 80 // function object and let tree_index_expression::rvalue |
| 81 // handle indexing. Otherwise, arrange to call the function | |
| 82 // here, so that we don't return the function definition as | |
| 83 // a value. | |
| 84 | |
| 85 if (val.is_function () && ! is_postfix_indexed ()) | |
|
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
86 { |
|
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
87 octave_value_list tmp_args; |
| 2887 | 88 |
|
16091
1785493171ac
pass lvalue_list to more subsref calls (bug #38374)
John W. Eaton <jwe@octave.org>
parents:
15606
diff
changeset
|
89 retval = (lvalue_list |
|
1785493171ac
pass lvalue_list to more subsref calls (bug #38374)
John W. Eaton <jwe@octave.org>
parents:
15606
diff
changeset
|
90 ? val.do_multi_index_op (nargout, tmp_args, lvalue_list) |
|
1785493171ac
pass lvalue_list to more subsref calls (bug #38374)
John W. Eaton <jwe@octave.org>
parents:
15606
diff
changeset
|
91 : val.do_multi_index_op (nargout, tmp_args)); |
|
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
92 } |
| 2887 | 93 else |
|
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
94 { |
|
15606
fb9dffe5fbfb
The silent_functions flag no longer modifies the parse tree
Max Brister <max@2bass.com>
parents:
15467
diff
changeset
|
95 if (print_result () && nargout == 0 |
|
fb9dffe5fbfb
The silent_functions flag no longer modifies the parse tree
Max Brister <max@2bass.com>
parents:
15467
diff
changeset
|
96 && tree_evaluator::statement_printing_enabled ()) |
|
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
97 val.print_with_name (octave_stdout, name ()); |
| 7336 | 98 |
|
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
99 retval = val; |
|
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
100 } |
| 2887 | 101 } |
|
15236
44d6ffdf9479
Disallow new variables in nested functions (bug #36271)
Max Brister <max@2bass.com>
parents:
15195
diff
changeset
|
102 else if (sym->is_added_static ()) |
|
44d6ffdf9479
Disallow new variables in nested functions (bug #36271)
Max Brister <max@2bass.com>
parents:
15195
diff
changeset
|
103 static_workspace_error (); |
| 7336 | 104 else |
| 105 eval_undefined_error (); | |
| 2887 | 106 |
| 107 return retval; | |
| 108 } | |
| 109 | |
| 2971 | 110 octave_value |
|
8658
73c4516fae10
New evaluator and debugger derived from tree-walker class
John W. Eaton <jwe@octave.org>
parents:
7924
diff
changeset
|
111 tree_identifier::rvalue1 (int nargout) |
| 2971 | 112 { |
| 113 octave_value retval; | |
| 114 | |
|
8658
73c4516fae10
New evaluator and debugger derived from tree-walker class
John W. Eaton <jwe@octave.org>
parents:
7924
diff
changeset
|
115 octave_value_list tmp = rvalue (nargout); |
| 2971 | 116 |
| 117 if (! tmp.empty ()) | |
| 118 retval = tmp(0); | |
| 119 | |
| 120 return retval; | |
| 121 } | |
| 122 | |
| 2979 | 123 octave_lvalue |
| 2971 | 124 tree_identifier::lvalue (void) |
| 125 { | |
|
15236
44d6ffdf9479
Disallow new variables in nested functions (bug #36271)
Max Brister <max@2bass.com>
parents:
15195
diff
changeset
|
126 if (sym->is_added_static ()) |
|
44d6ffdf9479
Disallow new variables in nested functions (bug #36271)
Max Brister <max@2bass.com>
parents:
15195
diff
changeset
|
127 static_workspace_error (); |
|
44d6ffdf9479
Disallow new variables in nested functions (bug #36271)
Max Brister <max@2bass.com>
parents:
15195
diff
changeset
|
128 |
|
16442
302157614308
deprecate symbol_table::varref functions
John W. Eaton <jwe@octave.org>
parents:
16091
diff
changeset
|
129 return octave_lvalue (sym); |
| 2971 | 130 } |
| 131 | |
| 5861 | 132 tree_identifier * |
|
7767
71f068b22fcc
scope and context fixes for function handles
John W. Eaton <jwe@octave.org>
parents:
7761
diff
changeset
|
133 tree_identifier::dup (symbol_table::scope_id sc, |
|
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
134 symbol_table::context_id) const |
| 5861 | 135 { |
| 7336 | 136 // The new tree_identifier object contains a symbol_record |
| 137 // entry from the duplicated scope. | |
| 5861 | 138 |
| 7336 | 139 // FIXME -- is this the best way? |
| 140 symbol_table::symbol_record new_sym | |
|
8913
35cd375d4bb3
make tree::dup functions const
John W. Eaton <jwe@octave.org>
parents:
8658
diff
changeset
|
141 = symbol_table::find_symbol (name (), sc); |
| 7336 | 142 |
| 143 tree_identifier *new_id | |
| 144 = new tree_identifier (new_sym, line (), column ()); | |
| 5861 | 145 |
| 146 new_id->copy_base (*this); | |
| 147 | |
| 148 return new_id; | |
| 149 } | |
| 150 | |
| 2887 | 151 void |
| 152 tree_identifier::accept (tree_walker& tw) | |
| 153 { | |
| 154 tw.visit_identifier (*this); | |
| 155 } |